Assertion: magnesium hydroxide | /r/HasProperty | obtained by the reaction
Facets:
value: between the bittern
type: OTHER
value: by sea water extraction
type: OTHER
value: with naoh
type: OTHER
value: mainly
type: DEGREE
Source sentences:
text: The invention of the parent case relates to a method of manufacturing fresh water and brine from sea water wherein a 2-3% aqueous suspension of magnesium hydroxide obtained by the reaction between the bittern obtained as a by-product in the manufacture of common salt and quicklime is contacted with carbon dioxide previously purified by washing with a portion of said magnesium hydroxide liquor to form magnesium carbonate with a composition of CO :
text: Magnesium hydroxide is mainly obtained by cave extraction, by sea brine extraction, by reaction with NaOH or Ca(OH) 2 , or by sea water extraction, making the magnesium hydroxide therein contained precipitate with a strong base and then extracting by known techniques (see the booklet of Sardamag Spa, January 1994--"Production of sea water magnesite for refractory purposes",
text: This invention is a method of manufacturing fresh water and brine from sea water wherein a 2-3% aqueous suspension of magnesium hydroxide obtained by the reaction between the bittern obtained as a by-product in the manufacture of common salt and quicklime, contacted with carbon dioxide previously purified by washing with a portion of said magnesium hydroxide liquor to form magnesium carbonate with a composition of CO2:MgO=1:1.20-0.95 n mol; the magnesium carbonate being added, as an aqueous suspension, as its stands or after separation, to sea water in the rates of Ca++:CO3-