Calcium removing equipment and process in cobalt wet metallurgy process

A technology of hydrometallurgy and equipment, which is applied in the field of calcium removal equipment and technology in the process of cobalt hydrometallurgy, can solve the problems of high saponification rate of P204, and achieve the effects of good extraction effect, high removal degree, and low operation cost

Inactive Publication Date: 2014-05-14
GEM JIANGSU COBALT IND CO LTD
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Problems solved by technology

[0003] In order to solve the problem of calcium precipitation in the extraction box and the high saponification rate of P204 in the process of decalcification using P204 extractant in cobalt hydrometallurgy, the present invention provides a decalcification equipment and process in the process of cobalt hydrometallurgy. , good extraction effect

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  • Calcium removing equipment and process in cobalt wet metallurgy process
  • Calcium removing equipment and process in cobalt wet metallurgy process
  • Calcium removing equipment and process in cobalt wet metallurgy process

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:

[0030] As shown in the figure, a decalcification device in cobalt hydrometallurgy process includes an extraction tank and an alkali adjustment stirring tank 2 . The extraction tank includes thirty stages of extraction tanks 1 connected in series, and the extraction tank 1 includes a mixing chamber 11, a clarification chamber 12, a stirring paddle 13, an organic inlet 14, an aqueous phase inlet 15, a dividing plate 16, an organic outlet 17 and Aqueous phase outlet 18. The mixing chamber 11 in the extraction tank 1 and the clarification chamber 12 are arranged in parallel perpendicular to the series direction of the extraction tanks, and a partition 16 is provided between the mixing chamber 11 and the clarification chamber 12, and the height of the partition 16 is lower than that of the extraction tank 1. height, the solution in the mi...

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Abstract

The invention relates to calcium removing equipment and process in a cobalt wet metallurgy process. The calcium removing equipment comprises an extracting tank and an alkali adjusting agitating tank which are communicated by a pipeline, wherein the extracting tank comprises a plurality of grades of extracting grooves which are connected in series. The calcium removing equipment is characterized in that each extracting groove comprises a mixing chamber and a clarifying chamber; a cobalt washing acid feeding opening, a washing liquid feeding opening and a liquid alkali feeding opening are formed in the top face of the alkali adjusting agitating tank; a filter pressing outlet is formed in the bottom of the alkali adjusting agitating tank; the filter pressing outlet is connected with a filter press.

Description

technical field [0001] The invention relates to the field of cobalt hydrometallurgy, in particular to a decalcification device and process for cobalt hydrometallurgy. Background technique [0002] Removing impurities is a necessary process in the cobalt hydrometallurgical process. Among the common impurities, calcium impurities are more difficult to remove because of their special nature. There are generally two kinds of calcium removal processes in the all-wet process using hydrocobalt ore, crude cobalt carbonate, and crude cobalt hydroxide as cobalt raw materials. After the iron process, copper is extracted and copper is extracted. Under the reaction conditions of pH 4.5 to 5.0 and temperature at 75-80 ° C, sodium fluoride or ammonium fluoride is added to precipitate calcium in the form of calcium fluoride. Reacting under higher pH conditions, it is easy to precipitate valuable metals cobalt and copper, reducing the recovery rate of cobalt and copper. In addition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/02C22B3/26C22B3/44C22B23/00
CPCY02P10/20
Inventor 伍一根杜长福纪方力何长荣仲扣成
Owner GEM JIANGSU COBALT IND CO LTD
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