Corporate Banner
Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Promoting Efficient Gas Dependent Flow Reactions

Published: Monday, February 04, 2013
Last Updated: Monday, February 04, 2013
Bookmark and Share
New Gas Addition module enables fast, controllable pre-saturation of liquid reagents.

Uniqsis Ltd has announced a new Gas Addition Module for its FlowSyn continuous flow reactor range.

The new module enables fast, controllable pre-saturation of liquid reagents with a wide range of gases thereby promoting efficient gas-dependent reactions in flow, such as carbonylation, hydrogenation, ozonolysis and direct synthesis of carboxylic acids.

Mixing gas and liquids in a controllable and reliable manner has always posed a particular challenge for flow chemists, in particular the prevention of undissolved gas bubbles which have an adverse effect on the control of pressure and residence time in flow chemistry.

The novel pressurized tube-in-tube design of the Gas Addition Module overcomes this problem by ensuring continuous interaction between the gas and liquid at every point along its length.

The tube-in-tube design is based on semi-permeable membrane technology, whereby the semi-permeable inner tube containing the liquid (typically a solvent) is bathed by a stream of pressurized gas which is enclosed within a thick-walled impermeable outer tube.

The pressurized gas is able to cross the semi-permeable membrane of the inner tube and dissolve into the liquid carried within.

However, because of the semi-permeable nature of the inner tube material, the liquid is unable to cross in the opposite direction.

The Gas Addition Module is compatible with a wide range of reactive gases (e.g. CO, CO2, H2, ethene, ethyne, SO2) and organic solvents (e.g. THF, Acetonitrile, Methanol, Propanol).

Capable of generating a continuous gas-saturated solvent stream in typically less than 10 seconds, it enables flow chemists to carry out a wide variety of applications with minimum effort, including heterogeneous and homogeneous gas-liquid reactions such as hydrogenation, ozonolysis, carbonylation, and direct synthesis of carboxylic acids.

A particularly convenient feature of the Uniqsis Gas Addition Module is the availability of an optional Portable Gas Reservoir. This handy space-saving device is easy and safe to charge with gas from a larger reservoir and obviates the need to bring bulky pressurized gas cylinders into the immediate experimental area.

The Gas Addition Module can be added in-line to any FlowSyn system and other continuous flow reactors to provide a solvent feed stream pre-saturated with gas, although it can also be used as a reactor in its own right.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,000+ scientific posters on ePosters
  • More Than 4,500+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Performing Gas Liquid Chemistries in a Controlled Manner
Sygnature Discovery (Nottingham, UK) has reported results demonstrating how the system allows them to perform traditionally hazardous chemistries in a controlled manner.
Monday, March 04, 2013
Scientific News
The Rise of 3D Cell Culture and in vitro Model Systems for Drug Discovery and Toxicology
An overview of the current technology and the challenges and benefits over 2D cell culture models plus some of the latest advances relating to human health research.
World’s Largest Coral Gene Database
‘Genetic toolkit’ will help shed light on which species survive climate change.
A Boost for Regenerative Medicine
Growing tissues and organs in the lab for transplantation into patients could become easier after scientists discovered an effective way to produce three-dimensional networks of blood vessels, vital for tissue survival yet a current stumbling block in regenerative medicine.
Breast Cancer Drug Hope
A drug for breast cancer that is more effective than existing medicines may be a step closer thanks to new research.
Untangling Disease-Related Protein Misfolding
Work advances understanding of genetic forms of thrombosis, emphysema, cirrhosis of the liver, neurodegenerative diseases and inflammation, among others.
Early Genetic Changes in Premalignant Colorectal Tissue Identified
Findings point to drivers of early cancer development, targets for cancer prevention therapies.
Harnessing Nature’s Vast Array of Venoms for Drug Discovery
Scripps scientists have developed a method for rapidly identifying venoms.
Scientists Find Evidence That Cancer Can Arise Changes
Researchers at Rockefeller University have found a mutation that affects the proteins that package DNA without changing the DNA itself can cause a rare form of cancer.
Developing a More Precise Seasonal Flu Vaccine
During the 2014-15 flu season, the poor match between the virus used to make the world’s vaccine stocks and the circulating seasonal virus yielded a vaccine that was less than 20 percent effective.
A Peachy Defense System for Seeds
ETH chemists are developing a new coating method to protect seeds from being eaten by insects. In doing so, they have drawn inspiration from the humble peach and a few of its peers.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!