Production method comprehensively utilizing high-zinc cobalt raw materials

A production method and technology for raw materials, which are applied in the production field of comprehensive utilization of high-zinc-cobalt raw materials, can solve the problems of difficult operation of metal elements, complex organic phase components, etc. Effect

Inactive Publication Date: 2017-05-31
GEM JIANGSU COBALT IND CO LTD
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Problems solved by technology

Although the method of direct extraction and recovery of cobalt elements using P507 has a high recovery rate, which can reach more than 95%, the extraction ability of the extraction agent P507 is relatively strong, and it will

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  • Production method comprehensively utilizing high-zinc cobalt raw materials
  • Production method comprehensively utilizing high-zinc cobalt raw materials

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Embodiment Construction

[0015] A production method for comprehensively utilizing high-zinc-cobalt raw materials, comprising the following steps: first step, zinc content in high-zinc-cobalt raw materials: 5%-20%, cobalt content: 5-10%, zinc-cobalt content ratio: 0.5:4 , Other impurities 0.001%-10%.

[0016] The high-zinc and cobalt raw materials are reductively leached, and soluble valuable metals such as zinc and cobalt enter the solution, and the solid-liquid separation; the second step: after the solid-liquid separation, the solution is removed by the yellow sodium iron vanadium method, and the pH value is adjusted to 4.7± 0.2, the aluminum in the solution is precipitated and removed in the form of aluminum hydroxide, and solid-liquid separation; the third step, the solution enters the P507 extraction tank, uses 20%-30% P507 extraction agent, and adds liquid alkali to control the saponification rate of 50-60 %, the Zn in the solution 2+ extracted into the organic phase, the organic phase was wash...

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Abstract

The invention relates to a production method comprehensively utilizing high-zinc cobalt raw materials. The method comprises the following steps that firstly, the high-zinc cobalt raw materials are subjected to reduction leaching, soluble valuable metals such as zinc and cobalt enter a solution, and solid-liquid separation is conducted; secondly, after solid-liquid separation, the solution is subjected to deironing through a jarosite method, the PH value is adjusted to 4.7+/-0.2 at the same time, aluminum in the solution is precipitated to be removed in an aluminum hydroxide mode, and solid-liquid separation is conducted; and thirdly, the solution enters a P507 extraction tank, 20%-30% of a P507 extraction agent is adopted, caustic soda liquid is added, the saponification rate is controlled to be 50-60%, Zn2+ in the solution is extracted into organic phases, the organic phases are washed through dilute sulfuric acid, other metal ions are co-extracted and washed down, then the organic phases are subjected to reverse extraction, the Zn2+ enters aqueous phases from the organic phases through reverse extraction by means of a dilute sulfuric acid solution, and a high-purity zinc sulfate solution is generated, concentrated and crystallized into zinc sulfate monohydrate crystals.

Description

technical field [0001] The invention relates to a production method for comprehensively utilizing high-zinc and cobalt raw materials. Background technique [0002] At present, the methods for separating zinc and cobalt in the solution mainly include oxidation precipitation and solvent extraction. Among them, the oxidation precipitation method has problems such as large consumption of chemicals, long oxidation time, and high impurity content in the product; while the solvent extraction method has the advantages of fast reaction speed and short production cycle. , high recovery rate, good selectivity and other advantages, such as the separation and recovery method of nickel, cobalt, copper, manganese and zinc in a kind of electroplating sludge of patent publication number CN104060097A, adopts P507 as extraction agent, can remove electroplating sludge Cobalt, copper, manganese, zinc and other metal elements are simultaneously extracted into the organic phase, and then the organ...

Claims

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Application Information

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IPC IPC(8): C22B3/04C22B3/44C22B3/38C22B19/20C22B23/00
CPCC22B3/04C22B3/44C22B19/20C22B23/0407C22B23/0461C22B3/3844Y02P10/20
Inventor 伍一根杜长福仲扣成袁国和叶圣毅陈志慧李亮
Owner GEM JIANGSU COBALT IND CO LTD
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