FIELD: nonferrous metallurgy.
SUBSTANCE: invention relates to dust catching and gas treatment, in particular at aluminum production plants, and can be used for preparation of soda solution used for absorption of fluorine-containing electrolysis gases. Soda solution preparation process comprises mixing cryolite crystallization mother liquor, concentrated soda solution, industrial-grade water, super-slime water, clarified and non-clarified saturated solutions, wherein constant concentrations of soda ash and sodium sulfate in soda solution are maintained by controlling volumes of super-slime water, concentrated soda solution, and industrial-grade water, determined according to existing equations.
EFFECT: achieved relative constancy of concentrations of principal components in gas-treatment solutions by means of stabilizing their contents in soda solution supplied to gas treatment.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| WET SCRUBBING METHOD OF POTROOM EXIT GASES OF ALUMINIUM PRODUCTION | 2016 |
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| CRYOLITE PRODUCTION PROCESS | 2000 |
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|
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| METHOD FOR RECOVERY OF SODIUM SULFATE FROM GAS CLEANING SOLUTION OF ELECTROLYTIC ALUMINUM MANUFACTURING | 2003 |
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| METHOD FOR COMPLEX PROCESSING OF GAS CLEANING SOLUTIONS IN ALUMINUM PRODUCTION | 2022 |
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| METHOD OF PRODUCING CALCIUM FLUORIDE | 2012 |
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RU2742987C1 |
| METHOD FOR PRODUCTION OF CRYOLITE | 1993 |
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RU2036840C1 |
