Process for preparing polyglycerol

Details Process for preparing polyglycerol Process for preparing polyglycerol

C - Chemistry, Metallurgy

08

G

260/632.2

C08G 65/34 (2006.01) C07C 43/13 (2006.01)

Patent

CA 1041123

PROCESS FOR PREPARING POLYGLYCEROL Paul Seiden and James B. Martin Abstract of the Disclosure A process for preparing polyglycerol by heating glycerol under reduced pressure in the presence of a catalytic quantity of sulfuric acid and a low molecular weight glyceride until from about 25% to about 75% of the glycerol is polymerized. The condensation is terminated by inactivat- ing the catalyst by adding a substantially stoichiometric amount of a suitable neutralizing agent. Unreacted glycerol and cyclic diglycerol are removed by distillation. The poly- glycerol so prepared can advantageously be employed in the preparation of polyglycerol fatty acid esters which are excellent food emulsifiers.

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