Synthesizing method for molybdenum-nickel ore

Abstract

The invention discloses a method for comprehensively processing a molybdenum-nickel ore which needs to solve the technical problem of achieving the high extraction rate of molybdenum, nickel, zinc, copper and lead as well as comprehensively utilizing the valuable component of a carbon molybdenum-nickel ore. The invention includes the following steps: grinding a raw ore material to 100 to 400 meshes; pre-extraction, terminal-extraction, the processing of the slag of terminal-extraction and the separation of a pre-extraction liquid. Compared with the prior art, the invention has a high comprehensive recycling rate; the molybdenum-nickel achieves 99 percent; the other nonferrous metals achieve 96 percents. Besides, the method of the invention avoids the valuable component from being lost during the next separation process; the pre-extraction liquid is closed and circulated during the technique; the waste water drain is removed; the demand of the technique to a device is low; the used chemical materials are cheap; the technical condition is gentle; the cost is low; the hidden safety danger brought by the traditional high temperature and high pressure operation is removed; the production process is easy to realize mechanization.

Description

technical field [0001] The invention relates to an extraction method of nonferrous metal molybdenum nickel, in particular to a method for extraction treatment and comprehensive recovery of carbonaceous molybdenum nickel ore. Background technique [0002] Carbonaceous molybdenum-nickel ore is a complex mineral resource with multiple metal layers. The grade of molybdenum is 2-8%. Below, the types are goreite, squarerite, red arsenite, and associated valuable components such as copper, lead, zinc, and silver. In addition, there are still 15-20% iron, 1-5% aluminum, 20-30% sulfur, 5-15% carbon and other recyclable components in this mine, but the selection and smelting are difficult and the comprehensive recovery is difficult. There is still no perfect method for the processing of the above-mentioned molybdenum-nickel ore in the prior art. The techniques for obtaining molybdenum-nickel for the above-mentioned ore mainly include: the method disclosed in Chinese Patent Applicatio...

AI Technical Summary

Problems solved by technology

The advantage of this method is that the process is simple and direct, and the disadvantage is that there is a large amount of SO 2 Pollution, and difficult balance between acid and ammonia consumption and leaching rate

The method disclosed in Chinese Patent Application No. CN2006100331788.8 proposes a method for oxidative leaching with oxygen under the condition of strong alkali heating, and its advantage is that it avoids SO 2 pollution, the process equipment is simple, the consumption of auxiliary materials is low, the disadvantage is: the leaching rate is low, and the method of further separation and purification is not disclosed

The methods disclosed in Chinese Patent Application Nos. CN99114737.5 and CN99114736.7 respectively proposed the method of leaching with an oxidizing agent in dilute acid and weak alkali medium, and the leaching solution was extracted to separate molybdenum and nickel, but no specific oxidizing agent and purification scheme were proposed.

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