Title:
OIL-WATER SEPARATION METHOD FOR WATER-CONTAINING COAL TAR AND OIL-WATER SEPARATION AGENT
Document Type and Number:
WIPO Patent Application WO/2016/113987
Kind Code:
A1
Abstract:
Provided is an oil-water separation method for water-containing coal tar excelling in oil-water-separating effects. The oil-water separation method for water-containing coal tar separates oil and water by adding, to a water-containing coal tar containing, in a mass ratio, at most one part water with respect to one part coal tar, at least one surfactant selected from the group consisting of a nonionic surfactant having a Griffin method HLB value of at least 6.5 and an anionic surfactant having a Davies' method HLB value of at least 45.
Inventors:
MIYAZAKI YOUHEI (JP)
KIKKAWA TAKASHI (JP)
TOKI TSUYOSHI (JP)
KIKKAWA TAKASHI (JP)
TOKI TSUYOSHI (JP)
Application Number:
PCT/JP2015/081433
Publication Date:
July 21, 2016
Filing Date:
November 09, 2015
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C10C1/02; B01D17/05; C10C1/20
Foreign References:
| US4139451A | 1979-02-13 | |||
| JP2000230177A | 2000-08-22 | |||
| JP2014104392A | 2014-06-09 | |||
| JPH0119439B2 | 1989-04-11 | |||
| CN102839007A | 2012-12-26 |
Other References:
KAIMEN KASSEIZAI NYUMON, 11 June 2007 (2007-06-11), pages 140 - 147
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
Download PDF: