Corporate Banner
Satellite Banner
Chemical Process Scale Up
Scientific Community
 
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
Pharmacy on Demand
New, portable system can be configured to produce different drugs.
Safer, Cheaper, Greener and More Efficient System for Organic Synthesis
The new medium not only supports organic synthesis it also produces considerably higher yields of product than pure organic solvents.
Countless New, Cleaner Uses of Methane
Chemists have demonstrated the potential to use methane as a versatile chemical building block with which to make more complex molecules.
New Way to Control Chemical Reactions
Scientists have harnessed static electricity to control chemical reactions for the first time, in a breakthrough that could bring cleaner industry and cheaper nanotechnology.
Tiny 'Flasks' Speed Up Chemical Reactions
Self-assembling nanosphere clusters may improve everything from drug synthesis to drug delivery.
The Manufacturing Challenges of Nanotechnology
Head of NanoManufacturing at the Department of Engineering’s Institute for Manufacturing (IfM) Dr Michaël de Volder explains why manufacturing carbon nanotubes is so difficult – and so important.
New Material Lays Waste to Mercury Pollution
A brand new, dirt cheap, non-toxic polymer that literally sucks mercury out of water and soil is set to become a game changer in the battle against one of the world’s most reviled pollutants.
Shocking New Way to Get the Salt Out
MIT team invents efficient shockwave-based process for desalination of water.
Chemical Design Made Easier
Rice University scientists prepare elusive organocatalysts for drug and fine chemical synthesis.
2015 ACS GCI Pharmaceutical Roundtable Research Grant
Request for proposals: Greener Continuous Chemistry & Engineering Technology.
SELECTBIO

SELECTBIO Market Reports
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!