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Nickel-molybdenum mine production technology


  • With a dilute acid extract from Molybdenum Ore Molybdenum and nickel salt method

With acid and an oxidant directly on molybdenum nickel ore symbiotic process nickel salt leaching method of molybdenum, nickel ore will be crushed molybdenum milling and leaching with dilute acid and oxidant, filtration, extraction and back extraction by ammonium molybdate, raffinate solution and then get through the extraction and back extraction of nickel sulfate, the residue obtained after evaporation of ammonium sulfate by-product. Molybdenum ore grade of 4.0% to 8.0%, nickel products at 2.5% to 4.0%, sulfur 23%. Invention of the total recovery of nickel, molybdenum were 90%, 94%, simple equipment, easy operation, no waste, good economic returns.

  • Wet decomposition of nickel molybdenum molybdenum ore extraction process

Wet decomposition of Ni-Mo Mo ore extraction process, using the alkaline solution as the leaching solution by the fine grinding of nickel-molybdenum ore after leaching, the leaching process of adding to the slurry of air, oxygen-enriched air or oxygen. Leaching of molybdenum disulfide to react with oxygen gradually transformed into a solution of sodium molybdate, nickel, vanadium contained molybdenum, tungsten, and also into the solution, while the sulfur into sulfur-containing anions such as sulfate, sulfite, nickel, copper and other valuable metals and iron remain in the residue can be further used to extract nickel, copper. Atmospheric conditions in the present invention, the use of oxygen in the decomposition of Ni-Mo ore metals molybdenum molybdenum mineral extraction process is simple, requiring less equipment, reagents and low cost, decomposition rate, does not produce environmental pollution.

  • A combination of nickel-molybdenum ore dressing and smelting of nickel, molybdenum separation

Mechanical dressing of the invention and the combination of low temperature selective reduction method for separation of molybdenum in the nickel-nickel-molybdenum. Nickel-molybdenum mine in about 2% nickel, containing about 2% molybdenum, is recognized as refractory minerals. The invention re-election, roughly divided, selective inhibition of molybdenum and nickel-floating Reduction of low-temperature fire, a combination of nickel-rich nickel-molybdenum enrichment and separation technology, will be two kinds of charge, that one is up to 11% molybdenum, about 2% nickel, the other is about 3% of molybdenum, nickel up to 8% of the burden. Charge can be directly used for both molybdenum smelting of nickel alloy or nickel-molybdenum iron alloy. The process was welcomed by the township and village enterprises.

  • With a weak base from Molybdenum Ore Molybdenum and nickel salt extraction method

With a weak base and a nickel-molybdenum co-oxidants on the preparation of molybdenum ore direct leaching process nickel salt method, Molybdenum Ore crushed ore milled, and then leaching with weak base and oxidizer, filtration, ammonia, Preparation of molybdenum extraction solution ammonium raffinate solution and then get through the processes of evaporation of nickel sulfate. Molybdenum ore grade of 4.0% to 8.0%, nickel products at 2.5% to 4.0%, sulfur 23%. Prepared by the molybdenum, nickel, total recoveries were 80%, 88% or more, simple equipment, easy operation, no waste, good economic returns.

  • Molybdenum Nickel comprehensive treatment methods

The present invention discloses a nickel molybdenum comprehensive treatment methods, to solve the technical problem is nickel-zinc and copper to molybdenum leaching of lead have a high rate of utilization of carbon molybdenum nickel ore valuable components. The invention includes the following steps: ore ground to 100-400 mesh material, prepreg, and finally dip, and finally leaching residue processing, pre-extract separation. Compared with the existing technology of the invention, integrated high recovery of nickel molybdenum leaching rate of 99%, 96% of other non-ferrous metals, to avoid the separation of price components in the course of the subsequent loss of pre-immersion in the process closed loop, elimination of wastewater discharge, low-technology requirements of the equipment, the use of low-cost chemical raw materials, process conditions are mild, low cost, high temperature and high pressure operation to eliminate the traditional security threat, the production process easily mechanized.

  • A nickel molybdenum molybdenum nickel extraction method for all wet

A full wet extraction of nickel molybdenum nickel-molybdenum method, involving a non-ferrous hydrometallurgy, particularly molybdenum nickel black shale extraction of molybdenum nickel all wet method. The feature extraction process in its Molybdenum Ground pressure oxidative leaching of nickel ore were obtained with nickel and nickel-molybdenum oxide leachate and the leaching residue containing molybdenum; then molybdenum leaching liquid extraction of nickel, nickel salt and output ammonium molybdate or molybdenum trioxide; the leaching of molybdenum in the slag pressure alkali leaching, purification, and then acid-ammonium to be recycled. Method of the present invention nickel-molybdenum high recovery rate, low cost, environmentally friendly production process.

  • Ammonia leaching of hyperbaric oxygen extraction from stone coal process and separation of nickel-molybdenum

Ammonia leaching of hyperbaric oxygen extraction from stone coal and separation of nickel-molybdenum in the process, the original minerals ground into powder, immersed in ammonia solution, the reaction leads to oxygen pressure in the 1.5mPa ~ 3.0mPa, reaction after filtration, after ammonia dissolved by acid base solution, and then isolated by extracting the organic phase containing molybdenum, nickel-containing water phase, respectively, until purification. Compared with the existing process, the process greatly reduce environmental pollution and improve the comprehensive utilization of mineral resources, high recovery of valuable metals, high purity. The semi-industrial trials to test the nickel-molybdenum recovery rate of 90% or more.

  • A high-performance nickel-molybdenum ore beneficiation technology

The present invention provides a high-performance nickel-molybdenum ore beneficiation technology. Technical solution of the invention are: the introduction of thermal field, strong physical intensity ultrasound or microwave pretreatment of the ore field decarbonization, adding efficient activator activation of nickel, molybdenum, re-use kerosene or xanthate collector. Technical treatment of the present invention 0.5 to 2% of the low-grade nickel-molybdenum, nickel-molybdenum grade can be 5 to 8%, recovery was more than 75% of the Ni-Mo mixed concentrate, fully meet the joint process as dressing and smelting metallurgy raw material requirements for the efficient use of the black rock series of refractory nickel-molybdenum ore resources in a new way.

  • Molybdenum nickel ore leaching ripening concentrated acid solvent extraction process depolymerization

A field of chemical metallurgy molybdenum nickel ore leaching depolymerization concentrated acid curing solvent extraction method. Sulfuric acid method using an efficient and unique solution dip cooked together, the combination of extraction separation of molybdenum and nickel-effective way to obtain high separation of fast economic and technological indicators and efficiency. $ Product obtained in the ammonium or molybdenum trioxide can be added for a variety of high alloy steel elements, trace elements in crops and human needs; alloy steel and nickel ammonium sulfate can be used as magnetic materials, for the analysis of reagent and electroplating industries.

  • A high-carbon molybdenum nickel ore beneficiation methods

The present invention relates to a stainless steel carrier for preparation of the composite catalyst, the catalyst preparation process technology. Catalyst of the invention by the intended boehmite, γ-Al2O3, whose activity group was divided into NiO, La2O3 and LiO mixed oxide; major way by dipping or coating on stainless steel substrate carrier. Stainless steel catalyst loadings between 20-40%; the prepared complex between the catalyst and stainless steel combination of solid, has good adhesion and thermal stability of the catalyst and catalytic properties are good. Composite catalyst of the invention in the automotive emission purification, partial oxidation reforming of methane to synthesis gas and fuel cells has broad application prospects.

 

 

 

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