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A kind of method of reclaiming antimony bismuth

A technology for recycling antimony-bismuth and antimony-bismuth, applied in the field of recycling antimony-bismuth, which can solve the problems of high recycling cost, large amount of discharged waste water, and limited number of cycles

Active Publication Date: 2019-02-22
CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in patent 201310472852.6, EDTA solution is used for elution, which has the following problems: (1) The recycling of the eluted liquid and the recovery of antimony and bismuth in it require repeated addition of acid and alkali; (2) EDTA in the eluent The recycling and recycling of the eluent requires the use of various membrane technologies for treatment and multiple precipitation and pressure filtration, and the recycling cost is relatively high; The number of times is greatly limited, and it needs to be continuously discharged; (4) The amount of wastewater discharged from the entire system is relatively large, and the treatment of the discharged EDTA wastewater is relatively difficult

Method used

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  • A kind of method of reclaiming antimony bismuth
  • A kind of method of reclaiming antimony bismuth
  • A kind of method of reclaiming antimony bismuth

Examples

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Embodiment 1

[0071] A method for reclaiming antimony-bismuth, adopting antimony-bismuth co-elution process, such as figure 1 and figure 2 Shown, this antimony-bismuth co-elution process comprises the following steps:

[0072] (1) Taking the copper electrolyte of a copper smelter as a solution containing antimony and bismuth, its composition and concentration of each composition are shown in Table 1.

[0073]

[0074] Filter the above-mentioned copper electrolyte through a filter membrane with a filtration precision (that is, the pore size of the filter membrane) of 1 μm, and then pass the filtered copper electrolyte through 200 mL of antimony-bismuth adsorption resin (phosphoramidate chelate) at a speed of 10 BV / h Resin), using the antimony-bismuth adsorption resin to adsorb the antimony and bismuth in the copper electrolyte until the antimony-bismuth adsorption resin reaches adsorption saturation. The adsorbed liquid produced during the adsorption process was used to return to the c...

Embodiment 2

[0096] A method for reclaiming antimony and bismuth, adopting a separate elution process of antimony and bismuth, such as figure 1 and Figure 4 Shown, this antimony bismuth separate elution process comprises the following steps:

[0097] (1) Taking the copper electrolyte of a copper smelter as a solution containing antimony and bismuth, its composition and concentration of each composition are shown in Table 1. The copper electrolyte in Example 1 is filtered through a filter membrane with a filtration accuracy of 1 μm, and then the filtered copper electrolyte is passed through 200 mL of antimony-bismuth adsorption resin (phosphoric acid amino acid chelating resin) at a speed of 10 BV / h, using The antimony-bismuth adsorption resin adsorbs the antimony and bismuth in the copper electrolyte until the antimony-bismuth adsorption resin reaches adsorption saturation. The antimony-bismuth post-adsorption liquid generated during the adsorption process is used to return to the coppe...

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Abstract

The invention discloses a method for recovering antimony and bismuth. In the method, a co-elution process of antimony and bismuth or a single elution process of antimony and bismuth are used to elute a solution containing antimony and bismuth. The method for recovering antimony and bismuth of the present invention can realize the co-recovery of antimony and bismuth by adopting the antimony and bismuth co-elution process to process the antimony and bismuth solution, and can realize the separate recovery of antimony and bismuth by using the antimony and bismuth single elution process to process the antimony and bismuth solution , and these two elution processes do not affect other components in the antimony-bismuth solution, and can simultaneously remove impurities from the antimony-bismuth solution. The method of the present invention has the advantages of simple process, easy operation, low recycling cost, less waste liquid generation, green environmental protection, etc., can effectively recover antimony bismuth in the antimony bismuth solution, has extremely high use value and application prospect, and is suitable for large Large-scale recovery of antimony and bismuth is beneficial to industrial treatment.

Description

technical field [0001] The invention belongs to the field of metallurgy and relates to a method for recovering antimony and bismuth. Background technique [0002] In the traditional copper electrolytic refining process, the quality of electrodeposited copper will be affected due to the continuous dissolution and accumulation of impurity elements such as antimony and bismuth in the electrolyte. [0003] At present, the traditional antimony and bismuth impurity purification processes in copper electrolyte include electrowinning, co-precipitation, extraction, membrane separation and ion exchange, etc. Each of these processes has different advantages and disadvantages. Among them, the ion exchange method is to adsorb the antimony and bismuth impurities in the copper electrolyte through the resin, and then use the eluent to backwash and regenerate and recycle. It needs to solve the problems of eluent recycling and elution wastewater treatment. For example, in patent 201310472852...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/24C22B30/02C22B30/06
CPCC22B3/24C22B30/02C22B30/06Y02P10/20
Inventor 蒋晓云夏栋易亚男
Owner CHANGSHA HASKY ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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