Patent · US Active

Method of and system for separating volatile siloxane from feed mixture

US9962657B2 · kind B2 · utility

2Cited by

7References

15Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

Dongchan Ahn · Midland, US
James Thompson · Sacramento, US

Key dates

Filing date	Dec 5, 2014
Grant date	May 8, 2018
Priority date	—
Expiry date	Apr 4, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2325/38
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Various embodiments disclosed relate to methods of separating a volatile siloxane from a liquid mixture. In various embodiments, the method includes contacting a first side of a first hydrophobic membrane with a liquid feed mixture including a polymer and at least one volatile siloxane. The method can also include contacting a second side of the membrane with a sweep medium including at least one of a sweep gas, a sweep liquid, and a vacuum, to produce a permeate mixture on the second side of the membrane and a retentate mixture on the first side of the membrane, wherein the permeate mixture is enriched in the volatile siloxane, and the retentate mixture is depleted in the volatile siloxane.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.