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}
}
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