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Wet separation technology for material containing lead, bismuth and molybdenum

A wet separation and material technology, applied in the direction of improving process efficiency, can solve the problems of complicated process, large loss of molybdenum, affecting the recovery rate of lead, bismuth and molybdenum, and purification of metal products, and achieves high metal recovery rate and high added value. Effect

Inactive Publication Date: 2012-01-18
HUNAN JINWANG BISMUTH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the comprehensive recycling of bismuth-containing polymetallic materials with complex components, if the pyro-refining process is adopted, the loss of molybdenum will be too large, and the smelting of refined bismuth will not meet the standard, which will affect the recovery rate of lead, bismuth and molybdenum and the purification of metal products. Therefore, it is necessary to develop a new process in time to solve the above problems:

Method used

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  • Wet separation technology for material containing lead, bismuth and molybdenum
  • Wet separation technology for material containing lead, bismuth and molybdenum

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Embodiment Construction

[0024] Describe the present invention below in conjunction with the specific embodiment of accompanying drawing;

[0025] The bismuth-containing material that present embodiment adopts, concrete composition is as follows:

[0026] Pb: 35.81%, Bi: 13.08%, Mu: 10.58%, S: 0.8%, Ag: 0.53%, Fe: 1.5%, Cu: 0.58%;

[0027] The material is made of refinery waste slag in lumps, and has a metallic luster after cracking. Bismuth and molybdenum are of high value in the material, and the others are recovered from by-products.

[0028] The process steps of wet separation of valuable metals from the above lead-containing bismuth and molybdenum materials are shown in the accompanying drawings.

[0029] a. Crushing large pieces of lead-containing, bismuth and molybdenum materials until the particle diameter is less than 3cm;

[0030] b The cracked material is ball milled by a wet ball mill to control more than 85%, or 100% of the material particle size can reach -100;

[0031] c Wet-type bal...

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Abstract

The invention relates to a wet separation technology for a material containing lead, bismuth and molybdenum, belonging to the technical field of nonferrous metallurgy. The material containing lead, bismuth and molybdenum provided by the invention comprises the following steps of: firstly carrying out ball milling on the material containing lead, bismuth and molybdenum, pulping by adding pure alkaline and an oxidant, and leaching out a pulping material liquid by heating, so that molybdenum exists in a leaching liquid in the form of sodium molybdenum, and lead bismuth silver copper iron slag is formed for lead, bismuth, silver, copper and iron remaining in leached slag; dissolving lead by hydrochloric acid deposition part of leachate, forming lead slag, smelting and recycling by a lead fire method, then adding calcium chloride, and depositing calcium molybdate; leaching out the lead bismuth silver copper iron slag by sulfate, sodium chloride and hydrogen peroxide, and separating Pb in the form of silver and lead slag; and depositing the bismuth in the liquid after lead deposition through hydrolysis, thus the separation of lead, bismuth and molybdenum is realized. According to the invention, the metal recovery rate is high, the separation effect is good, the waste liquid is recycled, no waste slag is produced, and the technology is environmentally-friendly and safe.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metallurgy, and in particular relates to a wet separation process for materials containing lead, bismuth and molybdenum. Background technique [0002] In the prior art, the treatment of lead-molybdenum ore (colored molybdenum-lead ore) usually adopts wet treatment, while the treatment of lead-bismuth ore usually adopts pyrotechnic process to treat lead-bismuth-molybdenum ore. The main components of lead-containing bismuth-molybdenum materials purchased by the company are: Pb: 35.81%, Bi: 13.08%, Mo: 10.17%, S: 0.8%, Ag: 0.53%, Fe: 1.5%, Cu: 0.58% . For the comprehensive recycling of bismuth-containing polymetallic materials with complex components, if the pyro-refining process is adopted, the loss of molybdenum will be too large, and the smelting of refined bismuth will not meet the standard, which will affect the recovery rate of lead, bismuth and molybdenum and the purification of metal prod...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B3/08C22B13/00C22B34/34C22B30/06
CPCY02P10/20
Inventor 曹永燃吴祖祥张娟
Owner HUNAN JINWANG BISMUTH
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