Process for the manufacture of sodium metabisulfite
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United States of America Patent
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Jul 4, 1989
Grant Date -
N/A
app pub date -
Dec 27, 1985
filing date -
Dec 27, 1985
priority date (Note) -
Expired
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Abstract
An improved process for the manufacture of sodium metabisulfite is provided. In this process, the chemical reaction forming sodium bisulfite solution is carried out separately from the crystallization of sodium metabisulfite. The crystallization step is carried out without chemical alteration and without pH adjustment.
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