Method for manufacturing a mixer-settler and a mixer-settler

A technology of mixing clarifier and wet method, applied in chemical instruments and methods, separation methods, solvent extraction, etc., to achieve the effect of favorable solid structure

Inactive Publication Date: 2011-04-13
OUTOTEC OYJ
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating has to be touched up from time to time, which causes additional maintenance operations in the mixer-settler

Method used

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  • Method for manufacturing a mixer-settler and a mixer-settler
  • Method for manufacturing a mixer-settler and a mixer-settler
  • Method for manufacturing a mixer-settler and a mixer-settler

Examples

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Embodiment Construction

[0021] Figures 1, 2 and 3 show the structure of a mixer-settler according to the invention. image 3 is the cross-section of Figure 2 seen at point B. The solution treated in the mixer-settler 1 is flowed during the treatment in order to separate the desired metals from the solution. The concrete floor 2 of the mixer-settler is therefore cast to be inclined in the direction of solution flow so that the floor is higher at the end where the solution is fed into the mixer-settler. As regards the structure of the mixer-settler 1, the requirements imposed by the circulation of the extraction solution must be considered and the mixer-settler must be both chemically and structurally resistant. A mixer-settler 1 with an approximately rectangular sharp bottom is made of a vertical wall structure 3 in contact with the solution, a concrete cast sloping floor 2 and a cover structure 4 . The wall structure 3 is connected to the base plate 2 through vertical support columns 5 , and then th...

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PUM

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Abstract

The invention relates to a method for manufacturing a mixer-settler (1) used in hydrometallurgical metal processes, such as liquid-liquid extraction, and to a mixer-settler structure where there is used chemically resistant material, such as plate-like wall elements made of reinforced plastic.

Description

technical field [0001] The invention relates to a manufacturing method of a mixing clarifier used in metal wet production and a structure of the mixing clarifier. Background technique [0002] Liquid-liquid extraction is a step in the wet recovery of metals following leaching of the ore. In liquid-liquid extraction, an organic reaction solution is mixed in a mixing-settler into an aqueous solution containing the substances to be purified and concentrated in dissolved form, usually metals in ionic form or as a complex with various impurities. The precious metal or substance to be purified is selectively reacted with the organic extraction chemical, where it can be isolated in pure form from the aqueous solution into the extraction chemical. Thus, the precious metal or substance can then be separated from the organic solution by a chemical reaction inverse to extraction back into an aqueous solution (back extraction), where it can be regenerated as a product, eg by precipitat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H7/18E04H7/02
CPCB01D11/0446E04H7/02Y10T29/49826Y10T29/49941Y10T29/49632Y10T156/10Y10T29/49623Y10T29/49625E04H7/16C22B3/02
Inventor A·卡希科T·尼瓦拉
Owner OUTOTEC OYJ
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