Process water for producing salt by means of strong brine concentration after sea water desalination by using a two-way circulation method and bromine extraction
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United States of America Patent
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Jun 5, 2018
Issued Date -
Jun 1, 2017
app pub date -
Jan 4, 2015
filing date -
Jun 6, 2014
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Abstract
A process produces salt by way of strong brine concentration after sea water desalination by using a two-way circulation method and bromine extraction. The process includes the following steps: A, preparing fresh water and strong brine from sea water in a high-pressure reverse osmosis unit by using a reverse osmosis method, wherein the concentration of the prepared strong brine is 70000 to 80000 PPM; and B, performing fresh and concentrated separation on the strong brine with the concentration of 70000 to 80000 PPM in a two-way circulation manner by using a concentration difference method till the strong brine is crystallized.
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