Assertion: magnesium carbonate | /r/AtLocation | sea water
Facets:
value: to precipitate calcium sulphate
type: PURPOSE
value: in the rates
type: TEMPORAL
value: in amount of ca++:co =1:1.2
type: OTHER
Source sentences:
text: The bittern obtained as a byproduct in the manufacture of common salt and the like is reacted with quicklime to obtain magnesium hydroxide; carbon dioxide is absorbed in an aqueous suspension of said magnesium hydroxide to form magnesium carbonate; the magnesium carbonate is added to sea water to precipitate calcium sulphate dissolved in sea water as calcium carbonate, and the precipitate is filtered off and the purified sea water is concentrated in a flash evaporator or other evaporator, or by ion exchange to obtain fresh water and brine.
text: To remove calcium sulphate, magnesium hydroxide is precipitated from the bittern obtained as a byproduct in the manufacture of common salt, and is converted to magnesium carbonate which is added to the sea water to precipitate calcium sulphate contained therein as calcium carbonate and filtered off.
text: This magnesium carbonate was added to sea water, in amount of Ca++:CO =1:1.2 based on the dissolved Ca++ in References
text: MgO=1:1.20-0.95 in mol; the magnesium carbonate is added to the sea water in the rates Ca++:CO