PROCESS FOR PREPARING HIGH-PURITY MAGNESIUM HYDROXIDE AND MAGNESIUM OXIDE
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United States of America Patent
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Issued Date -
Feb 14, 2013
app pub date -
Mar 6, 2012
filing date -
Aug 8, 2011
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Abandoned
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Abstract
A process for preparing magnesium compounds by precipitation, in which an aqueous solution or suspension of a magnesium compound is mixed with a precipitant and the corresponding magnesium compound is precipitated wherein the aqueous solution or suspension of a magnesium compound is obtained by reaction of an organomagnesium compound with an aldehyde or a ketone or another electrophile and subsequent aqueous workup of the reaction mixture at a pH of at most 10 or from a magnesium salt with a maximum calcium content and/or potassium content of 200 ppm, based on the magnesium salt used.
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