Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Improved Method for Separation of Organic Isomers

11.02.2003


Researchers in Oxford University’s Department of Inorganic Chemistry have devised a novel method for separating polar organic compounds, providing a useful alternative to the usual methods of chromatography or crystallisation.



The separation of mixtures of organic and inorganic compounds is of considerable importance in most areas of industrial and academic chemistry. In particular, isomeric mixtures are often difficult to separate and can require highly specialised techniques.

Conventional separation techniques involving chromatography or absorption are capable of removing impurities from process streams. Isomeric mixtures can be separated by crystallisation and other methods, but this is usually difficult due to the similar physical properties of the isomers. Any improvement in the efficiency or selectivity of a separation process can lead to increased product purity and significant cost savings.


The new Oxford technique provides a straightforward and novel method for separating polar organic compounds, and is a useful alternative to the usual methods of chromatography or crystallisation. Layered materials have been used for the intercalation of organic and inorganic species, principally with reference to specific clays. Specifically, layered double hydroxides have been used for the separation of 1,2- and 1,3- and 1,4-benzenedicarboxylic acids in greater than 95% selectivity. Research has continued, and in excess of 99% separation of 1,5-naphthalene sulphonate over the 2,6- isomer has been observed. Similar separations have been achieved for benzenedisulphonate. Differences in the intercalation rates between the mono- and di- substituted isomers have enabled a selectivity series to be devised. Work is ongoing to further evaluate this useful technique for isomer separation.

Isis Innovation, Oxford University’s technology transfer company, has filed a patent application for this technology and welcomes contact from companies interested in commercial exploitation.

Jennifer Johnson | alfa
Further information:
http://www.isis-innovation.com/licensing/476.html

More articles from Life Sciences:

nachricht Topologische Quantenchemie
21.07.2017 | Max-Planck-Institut für Chemische Physik fester Stoffe

nachricht Topological Quantum Chemistry
21.07.2017 | Max-Planck-Institut für Chemische Physik fester Stoffe

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

NASA looks to solar eclipse to help understand Earth's energy system

21.07.2017 | Earth Sciences

Stanford researchers develop a new type of soft, growing robot

21.07.2017 | Power and Electrical Engineering

Vortex photons from electrons in circular motion

21.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>