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Title: Polyvinylpyrrolidone dewaxing aid for bright stocks

Abstract

Polyvinylpyrrolidone having a number average molecular weight ranging from about 150,000 to 400,000 has been found to be an effective dewaxing aid for bright stock in ketone dewaxing processes. Using as little as 100 ppm based on the waxy oil can result in almost a 50% increase in the filter rate of the dewaxed oils from the wax.

Inventors:
;
Publication Date:
OSTI Identifier:
5770716
Patent Number(s):
US 4203824
Assignee:
Exxon Research And Engineering Co
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 22 Dec 1978
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; HYDROCARBONS; DEWAXING; COOLING; KETONES; PVP; SLURRIES; SOLVENTS; AMIDES; AZOLES; BLOOD SUBSTITUTES; DISPERSIONS; DRUGS; HEMATOLOGIC AGENTS; HETEROCYCLIC COMPOUNDS; LACTAMS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC POLYMERS; POLYMERS; POLYVINYLS; PYRROLES; PYRROLIDONES; SEPARATION PROCESSES; SUSPENSIONS; 020400* - Petroleum- Processing

Citation Formats

Achia, B U, and Shaw, D H. Polyvinylpyrrolidone dewaxing aid for bright stocks. United States: N. p., 1980. Web.
Achia, B U, & Shaw, D H. Polyvinylpyrrolidone dewaxing aid for bright stocks. United States.
Achia, B U, and Shaw, D H. 1980. "Polyvinylpyrrolidone dewaxing aid for bright stocks". United States.
@article{osti_5770716,
title = {Polyvinylpyrrolidone dewaxing aid for bright stocks},
author = {Achia, B U and Shaw, D H},
abstractNote = {Polyvinylpyrrolidone having a number average molecular weight ranging from about 150,000 to 400,000 has been found to be an effective dewaxing aid for bright stock in ketone dewaxing processes. Using as little as 100 ppm based on the waxy oil can result in almost a 50% increase in the filter rate of the dewaxed oils from the wax.},
doi = {},
url = {https://www.osti.gov/biblio/5770716}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 20 00:00:00 EDT 1980},
month = {Tue May 20 00:00:00 EDT 1980}
}