Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

PhD researcher develops inexpensive, sustainable production method in just two years

06.12.2006
Delft University of Technology PhD candidate Maaike Kroon has developed a sustainable and inexpensive production method for the chemical industry. This method combines reactions and separation processes, does not produce chemical waste and uses much less energy.

After just two years of PhD research, she will receive her doctorate degree based on this research subject on December 11. Maaike Kroon (25) is regarded as an exceptionally talented young researcher.

Maaike Kroon has developed a sustainable production method for the chemical industry that combines reaction and separation processes. She used this new method in trial experiments to reproduce a (already existing) medicine for Parkinson's disease. In doing so, no chemical waste was produced nor harmful solvents used, and the process required 75 percent less energy than is normally used. Moreover, not only is the end product extremely pure, but Kroon's method is also faster and less expensive. If used for this specific medicine, her production method would result in possible savings of 11 million euro per year.

The method combines so-called ionic liquids and separation with supercritical carbon dioxide. Using this combination was Kroon's idea, which Delft University of Technology has since patented.

... more about:
»Kroon »PhD »SUSTAINABLE »Separation »ionic

The raw materials for the medicine are dissolved in ionic liquid. Ionic liquids are fluid salts that serve as clean solvents. Carbon dioxide is added to this liquid under high pressure. The high pressure propels the CO2 gas to the so-called supercritical phase, during which it assumes the properties of both a gas and a liquid. This causes everything present to fully mix in a homogenous phase. The resulting reactions occur much more quickly than during the reaction processes currently used. A further advantage of Kroon's method is that all the raw materials are transposed into the end product without containing any by-products. The separation process occurs after the reaction. For this to occur, the pressure in the kettle is reduced, causing the CO2 and material produced to evaporate and float in a gas bubble on top of the liquid. It is easy to remove this gaseous mixture. The ionic liquid's fluid mixture and the catalyst remain behind in the kettle for reuse. The pressure is lowered further for the gaseous mixture, causing the end product to separate into a solid or liquid form.

Kroon says that there are no technical obstacles preventing the industry from using this method. Kroon: "Unfortunately, we must however consider the investments that companies have already made in existing production plants. Many companies will therefore only use this new method if a new factory is built." The combination of ionic liquids with supercritical carbon dioxide can in principle be used for the production of many other materials. Three new PhD candidates will conduct further research in this area at Delft University of Technology.

Maaike Kroon is regarded as an exceptionally talented young researcher and has received her PhD degree remarkably quickly: in just two years. Kroon had previously won the award for best Delft University of Technology graduate of the class of 2004-2005. This past summer she was also invited to participate as a researcher in the exclusive annual meeting of Nobel Prize Winners in Chemistry, which was held in the German city of Lindau.

In 2007, Kroon will become an assistant professor at Delft University of Technology. She will work in the DelftChemTech section and concentrate on nanochemistry. "I like to see new scientific discoveries actually being applied. This is currently an exciting challenge in nanotechnology." In the autumn of 2007, Kroon will conduct research at the Institut de Ciència de Materials in Barcelona for a year.

Frank Nuijens | alfa
Further information:
http://www.tudelft.nl

Further reports about: Kroon PhD SUSTAINABLE Separation ionic

More articles from Life Sciences:

nachricht UNH researchers create a more effective hydrogel for healing wounds
21.11.2018 | University of New Hampshire

nachricht Removing toxic mercury from contaminated water
21.11.2018 | Chalmers University of Technology

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: First diode for magnetic fields

Innsbruck quantum physicists have constructed a diode for magnetic fields and then tested it in the laboratory. The device, developed by the research groups led by the theorist Oriol Romero-Isart and the experimental physicist Gerhard Kirchmair, could open up a number of new applications.

Electric diodes are essential electronic components that conduct electricity in one direction but prevent conduction in the opposite one. They are found at the...

Im Focus: Nonstop Tranport of Cargo in Nanomachines

Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.

Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Optical Coherence Tomography: German-Japanese Research Alliance hosted Medical Imaging Conference

19.11.2018 | Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

 
Latest News

Removing toxic mercury from contaminated water

21.11.2018 | Life Sciences

New China and US studies back use of pulse oximeters for assessing blood pressure

21.11.2018 | Medical Engineering

Exoplanet stepping stones

21.11.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>