Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1983-11-28
1985-01-08
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568716, C07C 3916
Patent
active
044928068
ABSTRACT:
Anhydrous alkali metal (especially sodium) salts of hydroxyaromatic compounds, particularly bisphenols such as bisphenol A, are prepared by forming a solution of the hydroxyaromatic compound in a solvent mixture comprising a relatively high boiling non-polar organic liquid such as toluene or o-dichlorobenzene and an alkanol containing up to about 4 carbon atoms, preferably methanol; contacting said solution with an aqueous solution of a substantially stoichiometric amount of alkali metal hydroxide; and removing substantially all volatile materials from the reaction mixture by evaporation. The product thus obtained is a slurry of the anhydrous alkali metal salt in the non-polar liquid.
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patent: 4257953 (1981-03-01), Williams
patent: 4302616 (1981-11-01), Williams
patent: 4410736 (1983-10-01), Dellacoletta
Mendiratta Ashok K.
Morgan Wayne F.
Davis Jr. James C.
General Electric Company
Lone Werren B.
Magee Jr. James
Pittman William H.
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