Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkali metal
Patent
1980-05-27
1983-02-08
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkali metal
423643, C01D 104
Patent
active
043729240
ABSTRACT:
A method to purify an aqueous solution of an alkali metal hydroxide by countercurrently contacting the ammonia and hydroxide, in a volume ratio of about 0.6 to 1 to about 1 to 1, in a packed bed. The temperature in the lower portion of an extractor in which the process is carried out is controlled and maintained within a range of at least about 155.degree. to about 170.degree. F.
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Langel Wayne A.
Selby R. W.
The Dow Chemical Company
Vertiz O. R.
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