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:11/18/2014)... 2014  The Secure Identity & Biometrics Association ... announce the formation of The Airport Entry and ... Identity and Biometric Entry and Exit Solutions Framework ... support from BORDERPOL, the international non-profit organization that ... expertise regarding border security, traveler and migration systems. ...
(Date:11/12/2014)... 2014 Crossmatch™, a leading provider of biometric ... fingerprint readers have been deployed throughout Montparnasse Pasteleria, ... Mexico . The bakery chain implemented the Crossmatch ... caused by employees clocking in for each other. ... Montparnasse relied on paper timecards and a mechanical time ...
(Date:11/7/2014)... -- Leading Biometric companies aim to provide consumers ... transactions.  Companies in focus today are: NXT-ID, Inc. (NASDAQ: ... ), Google Inc. (NASDAQ: GOOG ), Microsoft Corporation ... EBAY ) and MasterCard Inc. (NYSE: MA) NXT-ID, ... authentication company focused on the growing mobile commerce is pleased ...
Breaking Biology News(10 mins):Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6
... (June 21, 2012) Autism Speaks, the world,s leading ... of new research grants totaling nearly $2.9 million in ... extraordinarily proud of Autism Speaks, not only for funding ... avenues to understanding autism," said Autism Speaks Co-founder Bob ...
... ocean infrastructure development to tap energy sources such as ... pile driving, the practice of pounding long, hollow steel ... energy turbines and other structures. But pile driving creates ... marine animals., Many scientists and regulators have assumed that ...
... world are preparing to address the urgent need to ... biodiversity. The Global Biodiversity Informatics Conference (GBIC) will ... and policy in Copenhagen, Denmark from 2-4 July. ... strategy and roadmap to make best use of the ...
Cached Biology News:Autism Speaks awards nearly $2.9 million to fund autism research 2Autism Speaks awards nearly $2.9 million to fund autism research 3Autism Speaks awards nearly $2.9 million to fund autism research 4Turning down the dial: Ocean energy development with less sound 2Turning down the dial: Ocean energy development with less sound 3Turning down the dial: Ocean energy development with less sound 4A new vision for harnessing data about life on Earth 2
(Date:11/24/2014)...   First published articles now ... Elsevier , a world-leading provider of scientific, technical and medical ... of the latest title in the Current Opinion journal ... . Current Opinion in ... to keep up-to-date with the expanding volume of information published ...
(Date:11/24/2014)... Continental Clinical Solutions, LLC (Continental) focuses ... at its mid-Atlantic late-phase research facility, located in ... the idea of closing patient disparities in mind. ... advances," said Continental's CEO, Saleh Stevens . ... cell line of Henrietta Lacks, dubious ethical practices ...
(Date:11/24/2014)... Nov. 24, 2014  Spherix Incorporated (Nasdaq: ... to the fostering and monetization of intellectual property, ... Telecommunications Ltd.,  Case No. 3:13-cv-03494-M and  Spherix v. ... both in the United States District Court for ... . On November 21, 2014 ...
(Date:11/22/2014)... Two new educational webinars hosted by ... ALS research and how the pharmaceutical industry can make life ... Challenge: Where Does the ALS Money Go? , Featuring guest ... Time: 1:30pm ET, Register to attend , This ... Cudkowicz, Julianne Dorn Professor of Neurology at Massachusetts General Hospital ...
Breaking Biology Technology:Elsevier Announces Launch of New Journal: Current Opinion in Food Science 2Elsevier Announces Launch of New Journal: Current Opinion in Food Science 3At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 2At Continental Clinical Solutions, CEO Saleh Stevens Focuses on Diversity in Clinical Trial Recruitment at Maryland Site 3Markman Hearing Held as Scheduled in VTech and Uniden Cases 2DrugDev Webinars in December to Explore What Comes Next for ALS Research and How We Can Make Life Easier for Clinical Sites 2
... Cell Therapeutics, Inc. (CTI) (Nasdaq and MTA: CTIC) ... The NASDAQ Stock Market indicating that the NASDAQ Listing ... the Company,s common stock on The NASDAQ Capital Market, ... 6, 2009, the Company demonstrate compliance with all applicable ...
... Acquisition LLC (the "Purchaser"), an affiliate of Biotechnology Value Fund ... purchase all of the outstanding shares of Avigen, Inc. (Nasdaq: ... today that it has extended the expiration date for the ... Friday, April 3, 2009. The tender offer was previously set ...
... CITY, March 6 /PRNewswire-FirstCall/ - AEterna Zentaris Inc. (NASDAQ: ... company focused on endocrine therapy and oncology, will announce ... results before market open on Wednesday, March 11, 2009. ... to discuss these results later that same day at ...
Cached Biology Technology:Cell Therapeutics Announces Receipt of NASDAQ Listing Update 2Cell Therapeutics Announces Receipt of NASDAQ Listing Update 3BVF Acquisition LLC Extends Avigen Tender Offer to April 3, 2009 2BVF Acquisition LLC Extends Avigen Tender Offer to April 3, 2009 3
... The c-Jun proto-oncogene was first identified as the ... oncogene. Jun B and Jun D have been ... their C-terminal regions, which are involved in dimerization ... are involved in transcriptional activation, diverge. ...
...
... JAK2 (phospho Y1007) ( Abpromise ... Antigen: Synthesized phosphopeptide derived ... site of tyrosine 1007 (K-E-Y P ... ID: 3717 ...
... eBioscience Intracellular (IC) Fixation Buffer, ... Buffer (Cat. No. 00-8333), can be ... prior to performing intracellular staining of ... antigens. These solutions have been specially ...
Biology Products: