Title:
潤滑基礎原料の曇りを除去し、濾過性を向上させる泡分離
Document Type and Number:
Japanese Patent JP2012520919
Kind Code:
A
Abstract:
Provided is a bubble generating process used to treat dewaxed lube base stocks to improve their filterability, hazy appearance or both. In one form, the process for improving at least one of haze appearance and filterability of a dewaxed lubricating oil basestock contained in a storage vessel includes contacting the lubricating oil basestock with gas bubbles passed through a gas distribution grid for a time sufficient to form a mixture of froth and gas treated basestock, allowing the mixture of froth and gas treated basestock to settle for a time sufficient to form a froth layer and a gas treated basestock layer, and separating the froth layer from the gas treated basestock layer, wherein a basestock having improved haze, improved filterability or both may be isolated from the gas treated basestock layer.
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| WO/1990/012633 | METHOD OF SEPARATING OIL-IN-WATER EMULSIONS |
| WO/2006/133262 | PROCESSING UNCONVENTIONAL AND OPPORTUNITY CRUDE OILS USING ZEOLITES |
Inventors:
James W. Gleason
Charles El Baker
Charles El Baker
Application Number:
JP2012500781A
Publication Date:
September 10, 2012
Filing Date:
March 04, 2010
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
C10G31/00
Domestic Patent References:
| JP2008516035A | 2008-05-15 |
Foreign References:
| US3338816A | 1967-08-29 | |||
| US3347775A | 1967-10-17 | |||
| US1277935A | 1918-09-03 | |||
| US2719817A | 1955-10-04 |
Attorney, Agent or Firm:
Samejima Mutsumi
Kyousei Tamura
Fukumasa Mitsuru
Kyousei Tamura
Fukumasa Mitsuru