Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-03-30
1977-11-01
Griffin, Ronald W.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 79, C08G 7514, C08G 7516
Patent
active
040565157
ABSTRACT:
Continuous production of arylene sulfide polymer is provided in a series of two or more substantially liquid-full reactors maintained at seriatim reduced temperature and pressure and discharging into a final zone which has a vapor space above a controlled liquid level and is maintained at a pressure lower than the liquid-full reaction train by vapor withdrawal with the reaction temperature increased at least to exceed all but the highest temperature in the liquid-full reactors so that at least a portion of the water produced in the arylene sulfide polymerization and a portion of the organic amide diluent are vaporized to concentrate the reaction slurry. The reaction slurry effluent from the vaporizing reactor can then be flashed with or without the aid of superheated steam dilution to produce a vapor which can be condensed, separated and recycled to the continuous reaction process and a particulate, polymeric product.
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patent: 3600137 (1971-08-01), Girantet et al.
patent: 3607843 (1971-09-01), Vidaurri
patent: 3783138 (1974-01-01), Miles et al.
patent: 3790536 (1974-02-01), Vidaurri
patent: 3800845 (1974-04-01), Scoggin
patent: 3887529 (1975-06-01), Rohlfing
patent: 3919177 (1975-11-01), Campbell
patent: 3956060 (1976-05-01), Scoggin
Griffin Ronald W.
Phillips Petroleum Company
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