Document Type and Number:
Japanese Patent JPS6330358
Kind Code:
B2
Abstract:
In a DILCHILL* dewaxing process employing rotary drum wax filters, the waxy slurry in the filters must be periodically dumped and the filters washed with hot solvent to remove wax fines which plug the cloth. The dumped slurry contains useful oil which can be recovered, with no detriment to the subsequent filter rate, by mixing the dumped slurry with the hot filter washings and recycling this mixture back into the DILCHILL dewaxing zone at one or more points therein wherein the temperature of the recycled mixture is from about 5 DEG to 50 DEG F. lower than the bulk temperature of the oil in the dewaxing zone and in an amount ranging from about 0.02 to 0.4 volumes of recycle per volume of feed. * DILCHILL is a registered service mark of the Exxon Research and Engineering Company.
Inventors:
JEIMUZU DEII BUSHUNERU
Application Number:
JP15874278A
Publication Date:
June 17, 1988
Filing Date:
December 25, 1978
Export Citation:
Assignee:
EXXON RESEARCH ENGINEERING CO
International Classes:
C10G73/02; C10G73/06; C10G73/08