The production technology of the high value-added magnesium compound, battery grade ferrous oxalate, high dispersion white carbon black ，nickel ore concentrate and cobalt ore concentrate manufactured by serpentineore、 forsterite ore、asbestos and asbestos tailing
National magnesium salt communication group: group number: 176351710;
Serpentine and dolomite communication group: group number: 217261070
Applicable for the serpentine ore、 forsterite ore、asbestos and asbestos tailing.
Products: magnesium carbonate、magnesium hydroxide、all levels of magnesium oxide、magnesium trisilicate、magnesium hexasilicate、magnesium fluoride； battery grade ferrous oxalate and high purity ferric oxide; tire use high dispersion white carbon black; cobalt ore concentrate and nickel ore concentrate.
Introduction of technique
Crush the serpentine ore or forsterite ore or asbestos tailing to certain fineness, and then decompose them, transform the magnesium, iron, nickel and cobalt etc in the serpentine ore powder into soluble sulfate and into the liquid phase, after solid-liquid separation, get the main ingredients of magnesium sulfate, ferrous sulfate, nickel sulfate and cobalt sulfate mixed solution. Firstly put the mixed solution into the extracting iron process, extract the Iron deposits,.then use the iron deposits as raw materials, after the special technology processing, get the battery grade ferrous oxalate. After that then put the solution into the extracting nickel process , extract the nickel ore concentrate .Next put the solution into the extracting cobalt process and obtain the cobalt ore concentrate Through further purification of the extracted cobalt solution, get the pure magnesium sulfate solution. Under certain technological conditions, make the magnesium sulfate solution reaction with ammonia with ammonium bicarbonate, and produce the sediment of the magnesium hydrate or basic magnesium carbonate, then through dewatering, rinsing, modifying, spin-drying, drying, crushing and packing, produce the magnesium hydroxide or magnesium carbonate products. The magnesium hydroxide or alkali magnesium carbonate can be as precursor, to control the different process conditions, and through the heat treatment, produce different levels and different use of the magnesium oxide products. The main ingredient of the mother liquor produced by the preparation process of the magnesium salt is ammonium sulfate. This technology development has the comprehensive utilization technology and device of the of mother liquor, which can process the mother liquid to get the ammonia, and circulate to be used in the preparation of magnesium salt. The waste residue produced by the acid splitting and separation processes is porous silicon dioxide, and through processing, it is produced to be the tire use high dispersion white carbon black. This process has corresponding water-saving energy-saving technology development, can effectively solve the problem of water shortage region water resource utilization in the project construction
Technical advancement
This technology is a mature comprehensive utilization technology of the serpentine 、forsterite ore、asbestos and asbestos tailing resource. Its characteristic is: High decomposition rate of the raw ore, and the comprehensive utilization of the all kinds of associated resources in the raw ore, high value-added product, and better economic benefit. Especially the preparation technology of the magnesium hydroxide, is leading in the domestic advanced level in the aspects of the crystal shape control, purity control, surface treatment, and the cost control.
This matching technique has the mature treatment system of the Magnesium hydroxide or Magnesium Carbonate mother liquor, the ammonia recovery rate is as high as 80%, which is not only improve the economic efficiency of the system, but also remove the pollution caused by the e mother liquor discharge.
This technology is processing the high value-added comprehensive utilization to the other metal and nonmetal resources in the raw ore, and manufacturing high-value magnesium compounds while co-producing the ferrous oxalate or high purity iron oxide, tire use high dispersion white carbon black , the nickel ore concentrate and the cobalt ore concentrate. The economic benefit is remarkable, and there are no waste residue, waste water discharge in the technological process.
This process has successfully passed the laboratory experiment research, pilot pilot-scale study, industrialized production testing, and has realized the industrialization. The contacted construction has the annual processing serpentine raw ore 5000t, 60000t production projects. The facts proved that this technology is the only、mature serpentine orsterite ore、asbestos and asbestos tailing comprehensive utilization of industrial technology of realizing the industrialization in China. In September 2012, it got the “Technology Innovation Awards” conferred by the Inorganic acid salt professional committee of Chemical Industry and Engineering Society of China
Market prospect
In today`s world, the environmental requirement is higher and higher, and the environmentally friendly magnesium hydrate flame retardant is getting attention by the various countries. The developed countries have invested heavily in research and development, and the international cooperation has been carried out. Magnesium hydroxide flame retardant has been widely used in all kinds of plastic products, in particular: the high performance magnesium hydroxide flame retardant used in wire and cable is welcomed by consumers. With the rapid development of polymer industry in Chinaand flame retardant regulation is continuously improved and perfected, the demand for flame retardant is increased. The demand for the non-toxic and smoke suppression type environmentally friendly inorganic flame retardant magnesium hydroxide is more very urgent.
Nickel is a very precious non-ferrous metal resource. The recycling of the nickel ore concentrate has high economic value. Taking nickel as 20% of the nickel ore concentrate as an example, at present, the factory price is as high as 28000 Yuan/ton.
Ferrous oxalate is the anode material for the preparation of the new pattern power battery —— the raw material of the lithium iron phosphate. At present, the price of market circulation is more than 15000 Yuan/ton. The benefit is very considerable.
High dispersion white carbon black is mainly used for tire industry. At present, the market price is between 6000and 8000 Yuan/tons.
Nickel 、cobalt are priceless non-ferrous metal resources, at the moment,the market price is 130000 Yuan/tons and 230000 Yuan/tons.( According to the metal tons)
Source of the technology
Independent research and development
Technical status:
Our company has realized the industrialization. There is daily processing serpentine ore orsterite ore、asbestos and asbestos tailing10 tons of industrial equipment built in the research institution, which can be used for the industrial test. At the same time, we contract to build two sets of industrial equipment of the annual processing serpentine ore raw ore 60000 tons inChina.
Main technical economic indicator:
The decomposition rate of the raw ore: Magnesium oxide > 97%, iron ＞80%, nickel > 97%.
Yield coefficient: Magnesium oxide >80%; iron ＞75%, nickel ＞80%, silicon＞90%.
Investment scale:
Based on the processing of annual output of 60000t raw ore of serpentine, it needs the equipment investment 120 million Yuan. The scale can either be big or small.
Environmental protection:
The technological process is no waste residue, wastewater discharge, ammonia recycling, no pollution to the environment.
Economic benefits:
Processing each1000kgraw ore of the serpentine: total investment 4500 Yuan, total output: 9200 Yuan. The economic benefit is remarkable.
Cooperation form:
Technology transfer：Responsible for process design, complete set of equipment of the standard equipment, non-standard equipment production design, layout design of the , equipment plane, design of pipe system, equipment installation guide, equipment debugging, production debugging, production engineers training, analysis worker training, technician training. Responsible for process procedure, analysis method of raw material and product, the compilation of the intermediate control analysis method, ensure the volume of production, yield and quality reach the standards, contract for the turnkey projects.
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