Use of surfactants in phenol sulfonate dehydration

Details Use of surfactants in phenol sulfonate dehydration Use of surfactants in phenol sulfonate dehydration

1990-11-26

1992-03-10

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfonate esters

562124, 562115, 562 74, C07C30344, C07C30942, C07C30302, C07C30332

Patent

active

050951327

ABSTRACT:
A process for dehydrating phenol sulfonate salts by azeotropic distillation of water wherein a surfactant such as sodium dodecylbenzene sulfonate is used to prevent the salts from agglomerating and plating out on the walls of the reaction vessel.

REFERENCES:
patent: 4486327 (1984-12-01), Murphy et al.
patent: 4606838 (1986-08-01), Burns
patent: 4666636 (1987-05-01), Shen
patent: 4704236 (1987-11-01), Sankey et al.
"The Effect of Surface Active Agents on Crystal Growth Rate and Crystal Habit", Journal of Physical Chemistry, vol. 64, 1960, pp. 13-19.
"The Influence of Surfactants on the Crystallization of L-Isoleucine", Ind. Eng. Chem. Res., vol. 28, No. 3 (1989), pp. 334-340.
Jancic and Grootscholten, Industrial Crystallization, pp. 125-130 (1984).

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