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Sulphation roasting of nickel concentrate,Sulphatising roasting of nickel concentrate
Drying and calcination are endothermic processes that require heat to evaporate bulk moisture or decompose chemical compounds. Combustion processes involve exothermic oxidation or “burning” of the feed material. Roasting processes use elevated temperature and controlled furnace atmospheres to effect desired chemical reactions in the furnace charge; roasting reactions may be either endothermic or exothermic. Although many furnace technologies exist, current industrial practice favors the rotary kiln and the fluidized-bed reactor for these applications.
Assessing the appropriate furnace technology for a given application is not a trivial exercise. Hazen can ably assist its clients in this area, because we understand that furnace design relies not only on an accurate definition of process operating conditions, but also on the physical characteristics of the feed materials, product specifications, gas handling requirements, and other important considerations. We can develop a well-planned program to ascertain the technical feasibility of a potential processing method, examine areas of technological uncertainty, and establish the economic viability of the venture. Once process parameters have been adequately defined, pilot-scale confirmation can generate the process design criteria needed for commercial implementation.
Since opening its doors in 1961, Hazen has completed projects over an exceptionally wide range of thermal processing applications. Some of our recent studies have involved:
- roasting of refractory and carbonaceous gold ores
- sulfation roasting of cobalt–copper–nickel concentrate
- reduction roasting of nickel laterites
- manganese carbonate calcination
- zirconium sulfate calcination
- selective chlorination of metals
- antimony and arsenic fuming
- combustion of coal, oil shale, refuse-derived fuel, and other fuels
- combustion of municipal solid waste for energy recovery
Crusher machine for sale South Africa
Liming Heavy Industry(shanghai) is a global supplier and manufacturer of crushing, grinding, sand making and beneficiation plant. We provide complete sets soapstone processing plant and crushing plant for sale such as jaw crusher, impact crusher, cone crusher, mobile crusher etc.As a professional crusher supplier, we developed mobile crusher for flexible installation and application. It has been most favorite crushing machine for quarries, mining and construction industry. Our crushers have been exported to many countries such as India, South Africa, Russia, Indonesia, Zambia, Zimbabwe, Pakistan, Kenya, Guinea, Omen etc. If you want to know crusher price South Africa or other information, please contact us.
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In order to recommend you the most suitable plant, you are kindly requested to tell us the below information:
1 what kind of stone do you want to crush?
2 what is the material size before crushing?
3 what is the final product size do you want?
4 what is the capacity you want tons per hour?
5 what will you do with the final products?