Title: Method for the separation of acids from chemical reaction mixtures by means of ionic fluids
Application Number: 03802742 Application Date: 2003.01.21
Publication Number: 1622948 Publication Date: 2005.06.01
Approval Pub. Date: 2007.02.14 Granted Pub. Date: 2007.02.14
International Classifi-cation: C07F9/22;C07B63/00
Applicant(s) Name: BASF AG Address:
Inventor(s) Name: Volland Martin;Seitz Verena;Maase Matthias
Attorney & Agent: lin bainan liu jinhui
Abstract:
    The invention discloses a method for producing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphite diamides, aminophosphines, diaminophosphines, phosphite amide halogenides, and aminophosphine halogenides by separating an acid in the presence of an auxiliary base. Said auxiliary base b) forms a salt with an acid, which is liquid at temperatures at which the valuable product is not significantly decomposed during separation of the liquid salt, and c) the salt of the auxiliary base and the valuable product or the solution of the valuable product form two immiscible phases in a suitable solvent.
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