Production of purified brine
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United States of America Patent
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-
Jun 22, 1982
Issued Date -
N/A
app pub date -
Aug 8, 1980
filing date -
Apr 14, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the purification of salt brine having magnesium and calcium hardness includes the steps of treating a saturated salt brine containing magnesium and calcium ions with an alkali metal carbonate and an alkali metal hydroxide in a preselected sequence and in amounts in excess of stoichiometric proportions to form firm, readily settleable, filterable floc precipitate particles of insoluble compounds of magnesium and calcium, suspended in the treated brine and passing the resultant suspension to a filtering unit to separate and remove the floc precipitate and to provide a purified salt brine.
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