Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FOAM CONTROL COMPOSITION
Document Type and Number:
Japanese Patent JPH11241024
Kind Code:
A
Abstract:

To obtain a foam control composition useful for controlling foams formed in a process for treating crude oil by dispersing an organosiloxane having a specified molecular weight and a specified polydispersity in a liquid organic diluent.

This composition is prepared by dispersing in a liquid organic diluent at least 0.1 wt.% organosiloxane having a weight-average molecular weight of at least 1,800,000 and a polydispersity of at most 4. Desirably, the organosiloxane is used in a concentration of 0.1-50 wt.% based on the composition. It is desirable that the viscosity of the composition is 50-5,000 mPa.s. The liquid organic diluent is exemplified by an alkane such as butane or pentane, an alkane halide such as methyl chloride, an ether such as ethyl ether, a ketone such as methyl ethyl ketone, an aromatic hydrocarbon such as toluene, or a mineral spirit, and is most desirably white spirit.


Inventors:
L HOSTIS JACQUELINE
RENAULD FRANCK
Application Number:
JP32544198A
Publication Date:
September 07, 1999
Filing Date:
November 16, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DOW CORNING SA
International Classes:
B01D19/04; C08L83/04; C10G5/00; C09K23/54; (IPC1-7): C08L83/04; B01F17/54; C10G5/00
Attorney, Agent or Firm:
Soga Doteru (6 people outside)