This paper presents a computeroriented thermodynamic method to analyze copper matte smelting and converting, the system of which was ideally defined as consisting of five major components: Cu, Fe, S, O and SiO2. As an example of its appliion, the method was demonstrated in establishing a steadystate model for the Noranda Process producing either metallic copper or high grade matte.
crude lead and copper matte, this being treated in a converter, for the circulation to dust to the flash furnace created dust troubles in the waste heat boiler. But the volume of copper matte increased due to the high copper content of flash furnace dust, to raise the loads in the pertinent converters. Then in 1975, a
Twelve sets of granulated mattes and slags from the nickel smelter at Kalgoorlie, and four sets from the copper smelter at Mt. Isa, were analysed for oxygen in matte by a hydrogen reduction technique, and slags analysed for Fe3+ /Fe2+ ratio and the amount of dissolved metal (either copper or nickel). Copper mattes containing between and per cent Cu contained dissolved oxygen ...
· Nickel matte converting consists of only the slag blow; the final product is a matte containing 70–75% nickel plus copper and 20–22% sulfur. Sulfur Dioxide Pressures in Matte Smelting A third common feature of all the matte smelting systems is that they generally operate with equilibrium SO 2 pressures at the matte/slag interface approaching one bar—the upper ends of the matte grade tie ...
a process for recovery of precious metal values from solid particles of sulphidic concentrates, mattes and the like containing copper is described. the process comprises, in part, the preferential leaching of copper from precious metals in the solids and the invention seeks to optimize the separation of copper from precious metals by conditioning the solids prior to preferential leaching of ...
Nickel mining and smelting operations in New Caledonia. In 2005 with the world facing an impending shortage of nickel required to feed Chinese industrialisation the Chinese adapted old decommissioned technology (pig iron blast furnaces) to treat nickel bearing .
03/03/2021 · China's Tsingshan Holding Group has signed a oneyear contract to supply nickel matte to Huayou Cobalt Co and CNGR Advanced Material Co, the stainless steel producer announced via its WeChat account on Wednesday March 3. Under the agreement, Tsingshan, which is China's largest producer of stainless steel, will supply 60,000 tonnes of nickel ...
Matte Grade Nickel And Copper Recovery Calculations. Matte Grade Nickel And Copper Recovery Calculations. Stone Crushing Machine: matte grade nickel and copper recovery calculations We provide customers with a variety of good quality construction and mining crushing equipment, and optimize the combination of various types of equipment to meet different process needs.
The nickel–copper converter matte is an intermediate from smelting of sulfide or laterite ores for the recovery of nickel and generally consists of dzharleit (), ... The electronic properties of NixSy were calculated previously, and ... the highgrade nickel matte to anode, and finally electrolytic refining.
In hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if Ni/Fe ratio is too low) and then smelted. After producing the nickel matte, further processing is done via the SherrittGordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then ...
23/01/2014 · A nickel deposit may have PGE, gold or other minor constituents. Use this simple metal equivalents calculator to calculate common (and uncommon) equivalences. For each metal select the grade and the market price to be used in the calculations. You may also select a metallurgical recovery % and smelter return rate if known.
Experimental Study and Thermodynamic Calculations in the CaO–Cu2O–FeO–Fe2O3–SiO2 System for Appliions in Novel CopperBased Processes. ... The influence of temperature and matte grade on gasslagmattetridymite equilibria in the CuFeOSSi system at p(SO2) = atm ... The recovery of ferronickel from saprolite ores using ...
In the future, more recovery and recycling of nickel from secondary sources and lowgrade ores will be even more important as ore grades decline and primary resources are depleted. References A grawal, A., Bagchi, D., Kumari, S., Kumar, V. and Pandey, B. (2008).
Nickel matte with a 70 to 80 % nickel grade, procured from mine and smelter that we have a stake in or other suppliers, and nickel / cobalt mixed sulfide with a 60% nickel grade produced in Coral Bay Nickel Corporation and Taganito HPAL Nickel Corporation, which are Sumitomo Metal Mining's subsidiaries, using the HPAL (High Pressure Acid Leach) process are used as raw material.
Thus copper concentrate can be flash smelted in a first operation to matte grade of about 55% while producing a slag which can be discarded; the matte can be granulated, ground and smelted in a second flash melter to yield white metal or blister copper with the slag from the second flash smelter being returned to the first smelter operation.
