PROCESS FOR THE CRYSTALLIZATION OF P-XYLENE

1,219,396. Crystallizing p-xylene. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Sept., 1969 [18 Sept., 1968], No. 45534/69. Heading B1G. [Also in Division C5] Hydrocarbon feed from a tank 10 is mixed with liquid CO 2 from a compressor and storage unit 20, cooled in exchanger 30 by direct heat...

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Bibliographic Details
Main Authors WEGE R, KUNREUTHER F, YOUNG E
Format Patent
LanguageEnglish
Published 05.06.1973
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:1,219,396. Crystallizing p-xylene. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Sept., 1969 [18 Sept., 1968], No. 45534/69. Heading B1G. [Also in Division C5] Hydrocarbon feed from a tank 10 is mixed with liquid CO 2 from a compressor and storage unit 20, cooled in exchanger 30 by direct heat exchange with mother liquor from a separator 50, mixed with a portidn of the slurry from a crystallizer 40, partially crystallized in crystallizer 40 by evaporation of liquid CO 2 , and converted to a p-xylene crystal cake in separator 50.
Bibliography:Application Number: CA19690062132