A method for separating water soluble organics from a process stream by aqueous biphasic extraction

PDF Version Also Available for Download.

Description

The present invention relates to a method for separating water-miscible organic species from a process stream by aqueous biphasic extraction. In particular, the method includes extracting the organic species into a polymer-rich phase of an aqueous biphase system in which the process stream comprises the salt-rich phase, and, next, separating the polymer from the extracted organic species by contacting the loaded, polymer-rich phase with a water-immiscible organic phase. Alternatively, the polymer can be separated from the extracted organic species by raising the temperature of the loaded, polymer-rich phase above the cloud point, such that the polymer and the water-soluble organic ... continued below

Physical Description

33 p.

Creation Information

Chaiko, David J. & Mego, William A. December 1, 1997.

Context

This patent is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this patent can be viewed below.

Who

People and organizations associated with either the creation of this patent or its content.

Sponsor

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this patent. Follow the links below to find similar items on the Digital Library.

Description

The present invention relates to a method for separating water-miscible organic species from a process stream by aqueous biphasic extraction. In particular, the method includes extracting the organic species into a polymer-rich phase of an aqueous biphase system in which the process stream comprises the salt-rich phase, and, next, separating the polymer from the extracted organic species by contacting the loaded, polymer-rich phase with a water-immiscible organic phase. Alternatively, the polymer can be separated from the extracted organic species by raising the temperature of the loaded, polymer-rich phase above the cloud point, such that the polymer and the water-soluble organic species separate into two distinct aqueous phases. In either case, a substantially salt-free, concentrated aqueous solution containing the organic species is recovered.

Physical Description

33 p.

Notes

OSTI as DE00756662

Medium: P; Size: 33 pages

Source

  • Patent File Date: 1997 Jun 11

Language

Item Type

Identifier

Unique identifying numbers for this patent in the Digital Library or other systems.

  • Report No.: PATENTS-US--A8873297
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 756662
  • Archival Resource Key: ark:/67531/metadc703284

Collections

This patent is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this patent?

When

Dates and time periods associated with this patent.

Creation Date

  • December 1, 1997

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • April 12, 2017, 1:30 p.m.

Usage Statistics

When was this patent last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 8

Interact With This Patent

Here are some suggestions for what to do next.

Start Viewing

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Chaiko, David J. & Mego, William A. A method for separating water soluble organics from a process stream by aqueous biphasic extraction, patent, December 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc703284/: accessed May 28, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.