Chemistry of inorganic compounds – Halogen or compound thereof – Binary compound containing metal
Patent
1979-03-23
1980-06-17
Hearn, Brian E.
Chemistry of inorganic compounds
Halogen or compound thereof
Binary compound containing metal
C01F 530
Patent
active
042083923
ABSTRACT:
A two-step process for removing boron impurities from aqueous solutions of magnesium chloride which comprises treating these solutions with more than 3 moles of methanol in the presence of an acid catalyst to form trimethyl borate and then removing the trimethyl borate and excess methanol from such solutions by means of distillation and then extracting from the thus-treated solutions any remaining boron compounds by means of a hydrocarbon liquid.
The hydrocarbon liquid extraction step may be used prior to the methanol treatment.
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Allain Ronald J.
Braithwaite David G.
Reid Ansell L.
Hearn Brian E.
Miller Robert A.
Nalco Chemical Co.
Premo John G.
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