RECYLING METHOD OF PURE AMMONIUM SULFATE AQUEOUS SOLUTION
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United States of America Patent
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Dec 3, 2015
app pub date -
May 20, 2015
filing date -
May 22, 2014
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Abstract
Provided is a method of recycling a high purity ammonium sulfate aqueous solution including: adding slurry obtained by mixing water, aqueous ammonia, and gypsum with each other and a predetermined amount of carbon dioxide to a reactor to performing a carbonation reaction, wherein an ammonium sulfate aqueous solution produced in the reactor is circulated in the reactor.
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