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Zirconium oxychloride extraction iron removal process

by:Deyuan      2020-08-11
Zirconium oxychloride is also called the two zirconium oxychloride, present white acicular or filiform. Zirconium oxychloride good solubility in water, soluble in methanol, ethanol and ether, mainly for the production of zirconium dioxide, or paint desiccating agent, rubber additives, etc.

in the actual production process, zirconium oxychloride is a small amount of iron in the mother liquor, affect zirconium oxychloride production and processing, so you need to zirconium oxychloride solution to extract the removal of iron. Iron removal technology for zirconium oxychloride extraction mainly by solvent extraction, choose suitable for the material liquid extraction solvent for extraction removal, achieve the goal of purification.

the implementation of solvent extraction can use extraction, extraction tower, centrifugal extraction machine equipment. Through a lot of experimental data show that the centrifugal extraction machine in the operation of zirconium oxychloride extraction iron removal effect is better than the first two extraction equipment.

compared with traditional mixer settler and extraction tower, the working principle of centrifugal extraction machine with both the distinction that having essence. Centrifugal extraction machine is the use of motor driven rotary drum high-speed rotation, the density of different and each of two immiscible liquids in drum or under the action of shear force produced by the rotation of blades complete mixing and mass transfer, and the effects of the centrifugal force in the high-speed rotating drum under rapid separation.

zirconium oxychloride mother liquor after feeding system analysis, to select the suitable extractant, the material liquid and extraction agent according to certain proportion into the centrifugal extraction machine, with the aid of the rotation of the drum, through the turbine disc and the impeller to make two phase mixing and dispersing quickly, two phase solution fully mass transfer, mixing and mass transfer process. Mixture again after the effect of drum centrifugal force through two separate out of the body side by side. At this time of the iron ion has entered in the organic phase, the follow-up to stripping section, iron ion extraction agent and organic phase separation, extractant recycling use.

extraction equipment related graph:
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