The solid construction, durable features, and dependable, continuous operation have allowed the furnace to become the criterion for quality for over 50 years. 50/84 Place Fusion Furnace. 8 cupels: 15, 24 or 50; Charge capacity of no. PAIR WITH. 50/84 Place Fusion Furnace, Furnace and Assay Supplies. 43. We can also customize each system to suit your furnace capacity. $260. cupellation, separation of gold or silver from impurities by melting the impure metal in a cupel (a flat, porous dish made of a refractory, or high-temperature-resistant, material) and then directing a blast of hot air on it in a special furnace. The. Get Electric Cupellation Furnace in Vardhman Nagar, Rajkot, Gujarat at best price by Bharat Machine Tools. View or download brochures, case studies and more by using the search and filter options found below – let our expertise lead the way to your continued growth. Learn more about Furnaces (Ashing and Muffle Ovens). Since the 20 grams assayed was 1-2oth of the whole, 1-2oth part of the 0. Min Order: 1. Automatic & Manual 7 Day timer controls, accommodating any assay schedule. Takes 100 x 6a, 7a, 7as or 72 x 8s Cupels at one time. Also compare specifications and support so you can buy with confidence. Electrical Requirements. Cupellation Furnaces. Construction. Easy to maintain and operate. Cupellation Furnace Range Model MF-D. Description: The DFC Model 802 Electric Cupellation Furnace is the workhorse of the fire assay laboratory. Also compare specifications and support so you can buy with confidence. Induced Combustion Gas Furnace instructions manual. This method was largely used to remove lead containing silver from copper, but it can also be used to remove antimony from ore minerals, and refine tin. The proposed procedure is simple, relatively rapid, and has been successfully applied to ores, concentrates, furnace products, and copper alloys. 17 in). Find a trusted Laboratory Furnace supplier and compare products for sale in Australia. Open the catalog to page 1. Takes 50 x 6a, 7a, 7as Cupels or 36 x 8s Cupels at one time. Laboratory Furnace in Perth & Melbourne Australia for sale - Get Quotes to Compare Price & Specifications50KG Metal Steel Scrap Cast Iron Electric Induction Melting Furnace Copper Cans . 0 /5 · 3 reviews ·China Floor Furnace 11,245 products found from 216 China Floor Furnace manufacturers & suppliers. Key Benefits Uses a No. Unspecified Laboratory Furnace in Australia for sale - Get Quotes to Compare Price & SpecificationsCupellation Furnace Model EMF-C Phone: +61 (0)8 9249 4400 Website: Email: furnace. The removed material is weighed, refined to pure silver through cupellation and weighed again in order to determine the weight percentage of the silver. Trademark. 7 0. Yes, We reduced the charge mass from approx. Group I. 1152-1145 B. 5 & 6 Muffle) 10 LFT56022 Gas Pilot Burner (Oil) 1 PF339GPA. 75. EMF-C Cupellation Furnace Thermocouple Sheath (Outer) 250 x 15mm 4 RC103CFE Timer, Panasonic TB53 1 RCALTB53 Vent Tube No. . 5125 J. The furnace has a capacity of 25 to 30 assays, including cupellations in 1¾ to 2 hours and 50 to 60 assays in 3 hours. , Ltd. With that said, we’ve drawn up a list of all the. As. Recoveries compare favourably with those obtained by the classical lead cupellation method. I am keeping the cupel on top of the furnace before preheating and and then preheat them, until red. The fully ashed sample gives a white ash. Bolt holes in base plates of all 4 legs for individual adjustment on uneven surfaces. IndiaMART Member Since Jan 2016. 1635 2 RF336LFL Ceramic Anchor 3" (Complete Assembly) (Set of 8) 1 PC128008. Independent Laboratory Supplies PTY LTD Edit Product More Info. What is Electric Cupellation Furnace for Assay The Gold 50-Place, 100-Place, cupellation furnace manufacturers & suppliers on Video Channel of Made-in-China. Pagtatayo ng Electric Cupellation furnace • Ang gabinete ng oven ng cupellation ay matibay na 2mm steel plate, na may linya na may mataas na kalidad na mga brick na may matigas ang ulo at pagkakabukod. Laboratory Furnace in Perth & Brisbane Australia for sale - Get Quotes to Compare Price & SpecificationsFacts Setting Standards in Quality and Reliability Experience in Thermal Processing Global Sales and Service Network · Production of laboratory and industrial furnaces since 1947 · Production site in Lilienthal/Bremen - Made in Germany · 500 employees worldwide · 150,000 customers in more than 100 countries · Very wide product range of furnaces ·. The second stage of this method, called cupellation, leaves the used container (cupel) highly contaminated with PbO. Wide : 1220mm. Nov 4, 2021. Thanks for helping. Pulin Das ]codeA. 44062 g for gold alloys with 750. 1200 Degree Ecf 50 Pf Electric Cupellation Furnace For Fire Assay , Find Complete Details about 1200 Degree Ecf 50 Pf Electric Cupellation Furnace For Fire Assay,Electric Cupellation Furnace,1200 Degree Muffle Furnace,Cupel Muffle Furnace from Industrial Furnace Supplier or Manufacturer-Qingdao Yosion Intelligent Technology Co. ₹ 50,000/ Piece Get Latest Price. The test method produces hazardous vapours. com +8618570071584. These 168-place cupellation furnaces are available with LPG, natural gas, or diesel fuel source options. 168-Place Cupellation Furnace, Furnace and Assay Supplies. Cupellation started long before the Post Medieval period, however, the. Hi-temperature Muffle Furnaces Manufacturers and Factory. Mar 12, 2009 #1. 350320). 5kw, 3 Phase. Annual Turnover Rs. Built to industry standards. FUEL SOURCE Electrical Connection is 3 phase with Earth Transformer 24kVa Multi-tap 50-60Hz INTERNAL DIMENSION 560mm deep 590mm wide 195mm high PAIR WITH 50 Place Cupellation Furnace Electric 50 Place Cupellation. High quality muffle furnace HC series. Carbolite Gero also offers a range of. Cupellation Muffle Furnace, 100-Place, Furnace and Assay Supplies. 80. The Standa rd temperatures (o C). We enable science by offering product choice, services, process excellence and our people make it happen. 1200 Degree 50 PF Electric Cupellation Furnace for Gold Mines Fire Assay Laboratory, Find Details and Price about Furnace Cupellation Furnace from 1200 Degree 50 PF Electric Cupellation Furnace for Gold Mines Fire Assay Laboratory - Qingdao Yosion Intelligent Technology Co. Electrical load: 5 AMPS. Anushilan SamithiB. 8 cupels OR 24 no. Fe3O4 + CO →3FeO + 2CO2. Furnace insulation is composite fiber and high-strength refractor. 065 grams per 255 grams of mercury. (e) by cupellation. Chlorination. Transformer 15kVa Multi-tap 50-60Hz. The lists outline the most common items usually required and will serve as a check list for the selection of items for an assay laboratory. Execute Time : Basic Instructions: 0. Request for quotation Cupellation furnace N 4/13 CUP as a tabletop model Request information Catalog download Cupellation is a process to separate precious metals, such as gold or silver, from alloys with base metals. 18F052X640. Description: These 168-place cupellation furnaces. 5Kpa • Gas Pressure Requirements: • Min Inlet: 3. Dalvi, owing to his management skills, business acumen and client centric approach we have attain such a remarkable place in the market. List Price: 190,00 €. Modular Furnace The MAS-3 assay modular furnace (formerly known as “William & Wilson”) is well known in the mining industry across North America, as well as in other locations worldwide. Brand: Zhermack. +39. 6 cupels: 24, 32 or 72Independent High Limit controller for ultimate safety, with double redundancy fail-safe’s to ensure furnace integrity and prevent furnace run away. Morganite Cruicble India Ltd. com FURNACE CASING The furnace. Available with natural gas, liquefied petroleum gas, or oil (diesel) fuel source options. About us. It is heated by 12 elements mounted on the side walls. Brooklyn Museum, Charles Edwin Wilbour Fund, 37. Max temp: 1200 °C; Chamber volumes: 10 to 43 litres; Charge capacity of no. Electric Cupellation Muffle Furnace , Find Complete Details about Electric Cupellation Muffle Furnace,Cupellation Muffle Furnace,Dental Oven,Size For Ceramic Kiln from Laboratory Heating Equipments Supplier or Manufacturer-Luoyang Luwei Furnace Co. Full power is 9000 watts. 6 cupels. The flux is pure CaCO 3, and 25 kg are used per tonne of pig iron charged. (cod. We enable. Inside, the fireplace is brightly lit, and the. Ask Price. • Ang electric oven ng kubo ay naka-mount sa isang console na gawa-gawa mula sa 2mm laser cut plate na may asul na enamel. Alsto Fusion Furnace | Electrical Electrical (20/28 place; 25/36 place & 25/42 Place depending on crucib. 50% MnO and 10% FeS2 and traces of other metals and oxides. The Bottom-blown Oxygen Converter or BBOC is a smelting furnace developed by the staff at Britannia Refined Metals Limited (“BRM”), a British subsidiary of MIM Holdings Limited (which is now part of the Glencore group of companies). Muffle furnace chamber working size: length 195mmx thickness 560mm x high 590mm 3. Working Area 560mm Deep 480mm Wide 190mm High Pair With 50 Place Fusion Furnace . We pull them out and let them cool. Temperatures 1. A model of a late 19 th-century Canadian seal used to certify the quality of assayed gold. Operated by foot control. Mar 12, 2009 #1. × Get a quote. 1635 2 RF336LFL Ceramic Anchor 3" (Complete Assembly) (Set of 8) 1 PC128008. 0816 Sample 014 5. Browse he Also use Get Quotes to request offers from other expert suppliers in one easy step. Our engineers work closely with our customers to select the right furnace for their needs. Furnace Ø: 60 - 125 mm. Distillate – Furnace Industries oil burner package. The outside world is a dream. 0017 Sample 001 13. Brass, as an alloy of copper and zinc without tin, did not. The fire is lighted, a little bone-ash is sprinkled on the floor of the muffle to prevent its corrosion by litharge in case of the upsetting of a cupel, and the cupels introduced as soon as a bright red heat is attained. Preheat furnace to 1050ºC 2. Its ability to extract and purify precious metals makes it an important tool for the jewelry, electronics, and mining industries. 2 4 RF204FF3 Vent Tube No. Where I work we pre heat cupels for about 5-10 minutes in the furnace. 5kw, 3 Phase. A. Cupellation Furnace | Electrical (50 place; 100 place & 168 Place) Fusion. E. Avoid Contact. Due of its high chamber design, model N 30/13 CUP can also be used for crucible melting. Y = CuOC. Macchinario Cupellation furnaces - FCOPPWorking with metals. Furnace body construction is durable 5mm laser-cut plate. Fact Sheet. Crucibles & Cupels Made from Fused Silica and Fireclay, our crucibles are the best choice for use in the fusion of gold/silver bearing ores due to their high erosion resistance allowing. High : 220mm. Sourcing Guide for Assay Electric Fusion Furnace: With hundreds of thousands of products to choose from and an ever growing product range, your industrial equipment needs are sureAvailable with natural gas, liquefied petroleum gas, or oil (diesel) fuel source options -Suitable for small labs 100-400 samples per day including standards -Base construction uses high-quality 50 x 50 RHS -Furnace body construction is durable 2mm laser-cut plate -High quality refractory brick and insulation -Bolt holes in base plates of all. Get Best Price. 70. X= poling, Y=C u OGet Cupellation Furnace Machine in Ahmedabad, Gujarat at best price by Malviya Industries. Over this time, Labec have. Furnace for sale - Get Quotes to Compare Price & Specifications in Melbourne & Perth AustraliaThe invention relates to noble metal purity detection apparatus, in particular to an intelligent cupellation furnace for fire assaying, comprising a floor body and characterized in that the upper portion of the body is provided with a hearth, the lower portion of the body is provided with an intake pipe in communication with the hearth, the rear of the hearth is provided. 3 0. 356210)The heat exchanger, burner, flue, ductwork, and ventilation pipes are the main parts of a furnace. The cupellation process was performed according to the ISO11426 Standard. We accept OEM custom products all made in China. Also use Get Quotes to request offers from other expert suppliers in one easy step. Thank you. Due. Since we cupel 84 samples at a time, it is impractical to load the lead buttons in to the cupels while they are in the furnace. They were then devolatilized at 900°C in a drop tube furnace (DTF) and a muffle furnace, respectively. +39. Working Area 560mm Deep 480mm Wide 190mm High Pair With 50 Place Fusion Furnace Description: The DFC Model 802 Electric Cupellation Furnace is the workhorse of the fire assay laboratory. 6/10 (cod. The comprehensive setup includes a 25-place fusion furnace, a 50-place cupellation furnace, a complete set of fire assay tools, a Multi-load & Multi-pour System, clay crucibles, magnesia cupels, flux, and a dust collection system. This is to keep the alloy in a molten state when the silver content of the alloy becomes richer, so as to remove the. 4 0. (NOTE: Voltage is customised to destination country of the furnace). 4 Muffle. Orientation: horizontal / vertical. ) and Diesel. 01272370519Cupellation Furnace Model EMF-C Phone: +61 (0)8 9249 4400 Website: Email: furnace. We accept OEM custom products all made in China. Suitable for labs 400-1000 samples per day including standards. 5 kg. Nabertherm. The gas from the cupola contains equal parts of CO and CO 2 in volume. Enhanced ventilation & precision horizontal airflow controls, using exhaust damper and air inlets position on door front. The digital programmable. 6. Gas Cupellation Furnace. Check out our prices. With an emerging ceramics industry in South Africa and one of the world’s cheapest electricity suppliers at the time, Cochrane saw the opportunity to set up his own furnace manufacturing company in the heartland of South African ceramics, Clayville, which he did in 1968. It consists of an outer casing of wrought-iron plates about 1/8 inch thick, united by angle iron. 100 or 168 Place Cupellation Furnace. 80. Cupellation Furnace Range Our Cupellation furnace range is available in a range of sizes, suitable for a range of cupels. Gas furnaces have key parts such as gas valves and draft inducer motors that electric furnaces don’t have. By 53 BC, Rome had expanded to control an immense expanse of the Mediterranean. The hearth is constructed from refractory bricks and silicon carbide tiles. The SiC muffle also ensures a clean and. Keith Company uses Silicon Carbide (SiC) elements in many of our high temperature furnaces and kilns. 100 Place Cupellation. US704198A US7632801A US1901076328A US704198A US 704198 A US704198 A US 704198A US 7632801 A US7632801 A US 7632801A US 1901076328 A US1901076328 A US 1901076328A US 704198 A US704198 A US 704198A Authority US United States Prior art keywords furnace cupellation hearth cupels air Prior art date 1901-09-24 Legal. com. The mufflefurnaces L 1/12 - LT 40/12 have been proven for daily laboratory use. Our range of laboratory equipment and supplies includes but is not limited to the following: Multipour Systems Download Brochure Fusion Furnaces Download Brochure Cupellation Furnaces Download Brochure. Cupellation Furnace | Electric 100 Place for sale from Furnace and Assay Supplies - IndustrySearch Australia Induced Combustion Gas Furnace instructions manual. The impurities, including lead, copper, tin, and other unwanted metals, are oxidized and partly. Cupellation Furnaces Gas (LPG & NG) and Diesel (50 place and 100 place. Also compare specifications and support so you can buy with confidence. Cell, (Flame Detector) QRA. make a very thin sheet from your metal prill, 2. 24—Sample pans, 8″x. Cupellation furnace N 10/13 CUP with closing brick and base on castors50, 60 gram & #5, #6 Fire Clay Crucibles; Size K, L, #12, #14 Melters;. We accept OEM custom products all made in China. 50 Lakh - 1 Crore. 168 Place Cupellation Furnace, Furnace and Assay Supplies. Chat now. Configurations of 50 place and 100 place furnaces can be supplied and configured for LPG, natural gas,. For 2 cups bismuth costs $2. The design of the cupellation furnace range ensures protection from the corrosive environment which would damage a conventional furnace. 0 /5 · 7 reviews ·EMF-C-cupellation-furnace-spare-parts - Read online for free. 5125 J. FURNACE DM FURNACE DM 30 FURNACE DM 40 FURNACE DM 50 FURNACE DM 4R. Typical cupellation furnace temperatures. 356210)This furnace has several unique features which facilitate its use and assure results of the highest quality. READ MOREFire Assay Cupellation Furnaces Manufacturers and Factory. The brightest thunder-bolt is elicited from the darkest storm. ) and Diesel. more; Laminar Air Flow. We enable science by offering product choice, services, process excellence and our people make it happen. 5 kg. We offer the Mines Assay 3 electric fusion and cupellation furnace, as well as larger gas cupellation and fusion furnaces. Four non-metallic silicon carbide heating elements. ideally you want to cupel at 1750°F and your melt furnace exceeds that temperature with little ability to control it closely. 88 so a busy shop is only about to change when they have to. Cera-therm International. Internal Dimensions. Edit Image Cupels. Back to Products » Fire Assay Products. Key Benefits Uses a No. The MHI silicon carbide heating elements are available in eight basic configurations. Load empty cupels and allow furnace to reach again 1050ºC 3. Lala Hardhayal eague [ C. Carbolite Gero cupellation furnaces are designed for testing using the cupellation, or fire assay test, method to ISO 11426:2014, a standard test method used to determine their purity. The design of the cupellation furnace range ensures protection from the corrosive environment which would damage a conventional furnace. Electric 100 Place Cupellation Furnace. F. 6. com. outer shell made of Mild steel structure with cerawool thermal insulation. Get Latest Price. Also use Get Quotes to request offers from other expert suppliers in one easy step. The new FCOPP furnace has a stainless steel structure with insulated walls. 4. To contact Furnace and Assay Supplies. Cupellation furnaces are capable of heating maximum up to 1200°C, while the working temperature is 1100°C. A 4, B 3, C 2, D 1C. -A. Cupels should be 168 x 6a, 7a or 7as. Thousands of these furnaces are in use throughout the world. Internal dimensions (Muffle): 50 place: 260mm wide x 460mm deep x 200mm high. A 3, B 4, C 2, D 1B. Figure 1. 25 Place Electric Fire Assay Fusion Furnace to Mineral Lab in Africa 24 Sep 2020 . Oil/Desiel CRUCIBLES 100 x 6A Cupels 100 x 7A or 7AS Cupels INTERNAL DIMENSION 560mm deep 480mm wide 190mm high PAIR WITH 50 Place Fusion Furnace. P. Gas/Oil Furnace 1 PF325PFA Burner Controller LFL1. (See also cupellation). Description. Optional port viewing window, rear extraction unit and hand valve door control extras are also available. 7 and 8 show a wood-burning muffle-furnace. Carbolite Gero also offers a range of smelting/melting furnaces. 0575357452 - Fax +39. 8 muffle 370 mm high x 680 mm wide x 670 mm deep. We are always glad to offer attractive discount and promotions if you are gonna. 1050 gram of silver. This reaction has to take place in a part-closed or closed container otherwise the zinc vapor would escape before it can react with the copper. Electrical Connection is 3 phase with Earth. Also use Get Quotes to request offers from other expert suppliers in one easy step. , Ltd. 12 yrs CN Supplier . These are skimmed off and their zinc content recovered by vacuum retorting. CONTACT. 0372 95% Sample 017. Stm-1-17 Heating Element High Quality Silicon Carbide Rod Sic High Temperatue 1700c High Temperature Muffle Furnace Vacuum Furnace Electric Furnace Lab Furnace US$ 2500-3030 / Piece 1 Piece (MOQ) The Electric 25 Place Fusion Furnace is suitable for small labs processing between 100 to 400 samples per day, including standards. Tel. Description: These 168-place cupellation furnace s are available with LPG, natural gas, or diesel fuel source options. Cupellation is the second step of the fire assay process. Browse heDescription. Thousands of these furnaces are in use throughout the world. 168-Place Cupellation Furnace, Furnace and Assay Supplies. Eight firings were con-ducted between April 2007 and July 2009. Acme Coating Furnace, CVD/Cvi Treatment, Sic Coating, Silicon Carbide Coating, Sic Deposition, Silicon Carbide Deposition, Deposition Furnace US$ 130000-260000 / Set 1 Set (MOQ)Get a Cupellation Furnace | Electric 100 Place price and specifications from Furnace and Assay Supplies. Spare PartsSourcing Guide for Assay Crucible Fusion Furnace: With hundreds of thousands of products to choose from and an ever growing product range, your industrial equipment needs are sureCupellation Furnaces for sale online. 0575324839 Email: info@fioainternational. Electric 100 Place Cupellation Furnace Operation & Maintenance Manual FURNACE & ASSAY —— SUPPLIE S— –– Electrical: 220/380/415/440v Electrical Connection is 3 phase with Earth. Automatic & Manual 7 Day timer controls, accommodating any assay schedule. Click to feedback >Fire Assay Fusion Furnaces Manufacturers and Factory. Door Operation. It's a diesel furnace (two fan-forced burners at the back) but the burners are mounted quite high up the back of the furnace and i dont think they are powerful enough to cause what you're talking about. Refining Precious Metals by Cupellation Ring of Ramesses IV, ca. 75. In stock 6 Items. Built to Industry Standards. Cupellation Furnaces. IndiaMART Member Since Jul 2011. Smelting Furnace of Iron Ore Laboratory-scale experiments showed that pig irons and steels of acceptable grade can be made by arc-furnace methods from east Texas siliceous ores containing less than 25 percent iron. Complete set of left and right electric connections for singlephase assay furnace FIOA 5. industries@morganplc. Technical Information. Our Cupellation furnace range is available in a range of sizes, suitable for a range of cupels. 9 0. Our engineers work closely with our customers to select the right furnace for their needs. Electrical. Exceptions will be noted later. 45 55 65 75 85. For the larger models, or where the furnace and control box are not fixed together, use two people to carry the furnace. The process takes two to three hours. Pneumatic rising. After loading the button, allow them to settle for 4 min, and let the "blower in" for next 10 min. Cupellation is a refining process in metallurgy, where ores or alloyed metals are treated under high temperatures and controlled operations to separate noble metals, like gold and silver, from base metals like lead, copper, zinc, arsenic, antimony or bismuth, present in the ore. GST 24AARPN6278Q1ZM. Description: These 168-place cupellation furnaces are available with LPG, natural gas, or diesel fuel source options. When unpacking or moving the furnace always lift it by its base or by both ends of the main body. Bucking Room Equipment. Product details. Takes 50 x 6a, 7a, 7as Cupels or 36 x 8s Cupels at one time. •Door panel for easy access to transformer. 3Fe2O3 + CO → 2Fe3O4 + CO2. Morganite Cruicble India Ltd. Home Fire Assay Fire Assay Products Crucibles ILS offers a choice of crucibles, in either single or multi-use varieties, to suit your assay requirements. Magnesite cupels that can be supplied packaged for use with either 25 plc or 50 plc. The fire assay fusion furnace is simple and convenient to operate through the main switch. 1. Fusion Furnace | Electric 20 Place for sale from Furnace and Assay Supplies - IndustrySearch Australia Trusted by 1,000,000+ Australian industrial buyers Towards the end of cupellation, slightly increase the cupellation temperature. The furnace features a durable silicon carbide (SiC) muffle, which provides excellent thermal stability, resistance to chemical attack, and efficient heat transfer. MFD-168 NG Cupellation Furnace Page 1 of 3 17 Montgomery Way, Malaga, Western Australia 6090 T: +61 08 9249 4400 F: +61 08 9249 4308 Email: furnace. Learn more about Furnaces (Ashing and Muffle Ovens). 58744 g for the gold ingot with 999. 55. 88 so a busy shop is only about to change when they have to. The fineness of ashes should be less than 0. 01272370519Cupellation Furnace. IVA e C. The plan of operation is to concentrate the precious metal in a button of lead either (1) Fire Assay By fusion in a crucible; or, more rarely, (2) Fire Assay By scorification. Cupellation:-An oxidizing fusion of lead, gold ,silver and associated base metal in a cupel which absorbs the lead oxide along with base metals oxides leaving a lead of gold and silver (along with platinum group metals, if any) on the cupel. Also use Get Quotes to request offers from other expert suppliers in one easy step. the cost per assay for fuel is 2. Exercise 11. Qingdao Decent Group cupellation furnace is a kind of fire assay equipment used to detect the content of precious metals, also known as muffle furnace. GST 24AAZPM7050P1ZT. Manufactured from supreme quality raw materials, these are made in compliance with industry quality standards. We pull them out and let them cool. Suitable for large labs; 400-1200 samples per day including standards. Ramesh Singh, in Applied Welding Engineering (Third Edition), 2020. Electric 50 /100 Place Cupellation Muffle Furnace. com P. 65. muffle furnace. What is Electric Cupellation Furnace for Assay The Gold 50-Place, 100-Place, cupellation furnace manufacturers & suppliers on Video Channel of Made-in-China. com tel: +61 8 9399 9299. Eight firings were con-ducted between April 2007 and July 2009. Qingdao Decent Group cupellation furnace is a kind of fire assay equipment used to detect the content of gold, silver and precious metals, also known as muffle furnace. samples per day, including standards. Literature [22] pointed out that " cupellation furnace—a muffle type furnace. The remaining lead-gold-silver residue is treated by cupellation, a process in which the residue is heated to a high temperature (about 800 °C, or 1,450 °F) under strongly oxidizing conditions. The impurities, including lead, copper, tin, and other unwanted metals, are oxidized and partly. 0 0. Ceramic muffle for cupellation furnace 182x235x110mm Holder for initial assay sampling (cod. PAIR WITH.