Navigation Links
Breakthrough could lead to cheaper, more sustainable chemical production
Date:3/21/2013

PROVIDENCE, R.I. [Brown University] A key advance, newly reported by chemists from Brown and Yale Universities, could lead to a cheaper and more sustainable way to make acrylate, an important commodity chemical used to make materials from polyester fabrics to diapers.

Chemical companies churn out billions of tons of acrylate each year, usually by heating propylene, a compound derived from crude oil. "What we're interested in is enhancing both the economics and the sustainability of how acrylate is made," said Wesley Bernskoetter, assistant professor of chemistry at Brown, who led the research. "Right now, everything that goes into making it is from relatively expensive, nonrenewable carbon sources."

Since the 1980s researchers have been looking into the possibility of making acrylate by combining carbon dioxide with a gas called ethylene in the presence of nickel and other metal catalysts. CO2 is essentially free and something the planet currently has in overabundance. Ethylene is cheaper than propylene and can be made from plant biomass.

There has been a persistent obstacle to the approach, however. Instead of forming the acrylate molecule, CO2 and ethylene tend to form a precursor molecule with a five-membered ring made of oxygen, nickel, and three carbon atoms. In order to finish the conversion to acrylate, that ring needs to be cracked open to allow the formation of a carbon-carbon double bond, a process called elimination.

That step had proved elusive. But the research by Bernskoetter and his colleagues, published in the journal Organometallics, shows that a class of chemicals called Lewis acids can easily break open that five-membered ring, allowing the molecule to eliminate and form acrylate.

Lewis acids are basically electron acceptors. In this case, the acid steals away electrons that make up the bond between nickel and oxygen in the ring. That weakens the bond and opens the rin
'/>"/>

Contact: Kevin Stacey
kevin_stacey@brown.edu
401-863-3766
Brown University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Nottingham technology in heart development breakthrough
2. Flu breakthrough: New drug developed to combat flu pandemic
3. Breakthrough study opens door to broader biomedical applications for Raman spectroscopy
4. Explosive breakthrough in research on molecular recognition
5. Stem cell breakthrough could lead to new bone repair therapies on nanoscale surfaces
6. A Spanish breakthrough allows the electroporation of cell cultures for less than 1 Euro
7. Recent breakthroughs in cocoa flavanol research discussed by European research consortium and expert panel
8. Breakthrough: How salt stops plant growth
9. Genetic sequencing breakthrough to aid treatment for congenital hyperinsulinism
10. Plant organ development breakthrough
11. USDA scientists and cooperators sequence the wheat genome in breakthrough for global food security
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... seawater signals a relaxing trip to the shore. But ... comes with an environmental hitch. When certain sunblock ingredients ... become toxic to some of the ocean,s tiniest inhabitants, ... animals. Their study appears in the ACS journal ... David Snchez-Quiles point out that other than staying indoors, ...
(Date:8/20/2014)... rugs and plastic bags could one day be made ... petroleum, scientists are now reporting. The novel process they ... deal with its agricultural and plastic waste problems, appear ... Athanassiou, Ilker S. Bayer and colleagues at the Italian ... constantly growing. In 2012, its production reached 288 million ...
(Date:8/20/2014)... a colony of honeybees grows to about 4,000 members, ... cycle: the building of a special type of comb ... of experts from the Department of Neurobiology and Behaviour ... starts the reproductive cycle of honeybee colonies. The results ... Science of Nature . , Reproduction isn,t always ...
Breaking Biology News(10 mins):Worker bees 'know' when to invest in their reproductive future 2
... fruits and vegetables in ozone-enriched environments reduces spoilage explains ... Conference in Harrogate. Dr Ian Singleton explains how ozone ... as it leaves no residue on foods. It ... can be lost due to microbial spoilage. Dr Singleton ...
... The benefits of blueberry consumption have been demonstrated ... benefits derived from their high polyphenol content. Blueberries ... on everything from aging to metabolic syndrome. Recently, ... Denton, TX, examined whether blueberries could play a ...
... 2010 For years, scientists have thought of DNA as ... RNA transcription. Now, research led by scientists from the Florida ... also act to fine-tune the activity of certain proteins known ... it possible to design therapies that could activate specific genes ...
Cached Biology News:Ozone reduces fungal spoilage of fruits and vegetables 2Blueberries may inhibit development of fat cells 2Scripps Research scientists uncover new DNA role in modifying gene function 2Scripps Research scientists uncover new DNA role in modifying gene function 3
(Date:8/19/2014)... , Aug. 19, 2014 Research and Markets ... Supplies - Global Strategic Business Report" report to their offering. ... and Tissue Culture Supplies in US$ Thousands by the following Product ... comprehensive analytics for the US, Canada , ... Asia-Pacific , and Latin America . Annual ...
(Date:8/19/2014)... August 19, 2014 XenoTech announces ... and cost-effective metabolite production from bioactive small molecules. ... platform, the technology enables convenient and timely assessment ... to XenoTech’s Vice President of Commercial Operations, Christian ... assessing clinical risk can be measured directly by ...
(Date:8/19/2014)... , Aug. 19, 2014 /PRNewswire/ - iCo Therapeutics Inc. ... today reported results of its Oral Amphotericin B ... reservoirs.  The study, conducted by ImmuneCarta®, the immune ... vitro effectiveness of Oral Amp B in ... in individuals despite intensive treatment with antiretroviral therapy. ...
(Date:8/18/2014)... FREDERICK, Md. , Aug. 18, 2014 ... the maker of advanced consumer medical devices ... Kotak was interviewed by CEOLIVE.TV as ... The entire interview is available at ... interview Dr. Kotak explains to investors the ...
Breaking Biology Technology:Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 2Beyond Metabolite Identification, Testable Quantities Now Offered by XenoTech 3iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 2iCo Therapeutics Announces Positive Oral Amphotericin B Study Results 3BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3
... in Wisconsin, educations effect on the state economy and ... were a few of the many topics covered yesterday ... , ,The panel first discussed the relation between the ... Wisconsin-Madison Chancellor John Wiley began by citing ...
... a lot of lively correspondence with Midwest technology job seekers, ... hanging onto their jobs by their fingernails. , ,They write ... their experiences with finding a job, getting promoted and managing ... write about really annoying things that their co-workers and supervisors ...
... child waits for Christmas. Today, PalmOne introduces the ... I buy?" conundrum. , ,I saw the new Treo six weeks ... (Yes, even I take a break from the schmoozing to sneak ... fell in love. This newest handheld communicator takes everything that ...
Cached Biology Technology:UW and business leaders outline need for educated workers 2UW and business leaders outline need for educated workers 3Midwest technology bosses should stop flaunting their wealth at work 2Midwest technology bosses should stop flaunting their wealth at work 3Midwest technology bosses should stop flaunting their wealth at work 4Christmas comes early with Treo 650 2Christmas comes early with Treo 650 3
Endothelin-converting enzyme 1 (EC 3.4.24.71) (ECE-1). [Source:Uniprot/SWISSPROT;Acc:P42892] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
...
Red Standard is sodium salt of resorufin....
X-Gal, 100 mg. 5-Bromo-4-chloro-3-indolyl-b-d-galactoside.Histochemical substrate for b-galactosidase, used in blue/white screening.Store at -20 C. Protect from moisture. Category: Nucleotides & Enzy...
Biology Products: