Process for preparing quaternary ammonium compositions

Details Process for preparing quaternary ammonium compositions Process for preparing quaternary ammonium compositions

C - Chemistry, Metallurgy

07

F

260/465.4, 260/4

C07F 9/11 (2006.01) D06M 13/46 (2006.01) D06M 23/00 (2006.01)

Patent

CA 1146577

ABSTRACT OF THE DISCLOSURE A process for preparing certain quaternary ammonium compositions from tertiary amines selected from the group con- sisting of tertiary amines containing one or two long-chain aliphatic groups, and mixtures ?hereof, is disclosed. The process comprises reacting the tertiary amine with dimethyl sulfate, diethyl sulfate, or timethyl phosphate. The reaction is performed in a reaction medium selected from the group consisting of compounds which have a melting point below about 100°C, preferably are capable of dissolving the desired quaternary ammonium compound, and which contain either (i) an ester linkage derived from a fatty acid, (ii) a primary hydroxyl group, or (iii) both, and mixtures of said compounds. The reaction typically is performed at a temperature between about 50°C and about 150°C, for a length of time sufficient to convert at least a portion of the tertiary amine to the desired quaternary ammonium compound.

335272

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