EC-D type extraction tank for uranium hydrometallurgy

Abstract

The invention belongs to the technical field of solvent extraction and discloses a novel material and an EC-D type mixer-settler suitable for solvent extraction. The novel material has the advantagesof acid resistance, convenient repair and low cost. Meanwhile, the structure of the EC-D type mixer-settler is optimized, and the conditions that a material is soft and is not suitable for building alarge mixer-settler are avoided. The mixing and phase splitting conditions of the mixer-settler are improved, a light phase and heavy phase backflow weir structure is optimized, and an adjustable function is achieved. Support frames shaped like a Chinese character "ri", a reinforcing pipe, a reinforcing angle plate, an adjustable gravity leg, extraction tank mixing chambers, extraction tank clarifying chambers, aqueous phase channels, organic phase channels, a sight glass, a mixing chamber partition and a reinforcing transverse plate are included. The extraction tank mixing chambers are arranged at one ends of the extraction tank clarifying chambers. The multiple extraction tank clarifying chambers and the extraction tank mixing chambers are parallel. One aqueous phase channel and one organic phase channel are formed between every two adjacent extraction tank clarifying chambers. The extraction tank clarifying chambers are fixed through the support frames shaped like the Chinese character "ri".

Description

technical field [0001] The invention belongs to the technical field of solvent extraction, and in particular relates to an EC-D type extraction tank for uranium hydrometallurgy. Background technique [0002] At present, there are at least more than 30 different types of extractors in operation in the industry [1], but the extractor used earlier, widely used and with more types is the mixing clarifier [2]. [0003] The material of the widely used mixing clarifier is generally carbon steel structure + FRP anti-corrosion, stainless steel, carbon steel structure + FRP anti-corrosion box-type mixing clarifier has the advantages of simple structure, small investment cost, easy processing, etc., but according to the use of our company, there are The equipment is seriously aging, it is difficult to repair after anti-corrosion damage, and it occupies a large area. Stainless steel is expensive, especially high acid resistant stainless steel. The light phase reflux weir and heavy pha...

AI Technical Summary

Problems solved by technology

The light phase reflux weir and heavy phase reflux weir of the traditional mixing clarifier are both fixed and cannot be adjusted, and are not adjustable for abnormal conditions and different materials during operation

The water and oil phases do not mix well in the mixing chamber

[0004] At present, some domestic chemical companies mostly use PVC materials to build plastic EC-D mixer clarifiers, but PVC materials are not suitable for organic solvents containing TBP, and most plastic extraction tanks cannot be built too large due to the influence of materials. too small

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