Navigation Links
Plastic that grows on trees, part two
Date:5/19/2009

lose, which as anyone who's boiled leafy vegetables knows can be stringy and hard to dissolve. Compounds called catalysts speed up the conversion of cellulose to HMF. After trying different metal chloride catalysts in the ionic solvent, they found a pair of catalysts that worked well: A combination of copper chloride and chromium chloride under 120 degrees Celsius broke down the cellulose without creating a lot of unwanted byproducts.

In additional experiments, the team tested how well their method compared to acid, a common way to break down cellulose. The metal chlorides-ionic liquid system worked ten times faster than the acid and at much lower temperatures. In addition, the paired metal chloride catalysts allowed Zhang's research team to avoid using another compound under investigation, a mineral acid, that is known to degrade HMF.

Optimizing their method, the team found that they could consistently achieve a high yield of HMF -- the method converted about 57 percent of the sugar content in the cellulose feedstock to HMF through this single step process. The team recovered more than 90% of the HMF formed, and the final product from the process was 96% pure.

In addition, the metal chlorides and ionic liquid could be reused multiple times without losing their effectiveness. Being able to recycle the materials will lower the cost of HMF production.

"This paper is a tremendous breakthrough. By combining the cellulose-breakdown and sugar-conversion steps, we are very close to a single-step method of converting raw biomass into a new platform chemical -- a chemical you can readily turn into a transportation fuel or for synthesis of plastics and other useful materials," said PNNL geochemist and study coauthor Jim Amonette. "Advances like this can help reduce our dependence on fossil fuels."


'/>"/>

Contact: Mary Beckman
mary.beckman@pnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert

Page: 1 2

Related biology news :

1. Hormone-mimics in plastic water bottles -- just the tip of the iceberg?
2. Stanford researchers develop biodegradable substitutes for wood, plastic bottles and other materials
3. Green plastics could help reduce carbon footprint
4. Plastic and reconstructive surgery -- in brief
5. Astrocytes and synaptic plasticity
6. 6 environmental research studies reveal critical health risks from plastic
7. Kalyon wins Society of Plastics Engineers 2008 Research Award
8. Plastics suspect in lobster illness
9. Iowa Corn Promotion Board, NJIT to license breakthrough, safe bio-plastic alternative
10. Protein fibrils as alternative plastics?
11. Reproductive plasticity revealed: Neotropical treefrog can choose to lay eggs in water or on land
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/4/2014)... Dec. 3, 2014  Crossmatch™, a leading provider ... its DigitalPersona ® Pro Enterprise software and ... deployed throughout First Bank branch locations in ... Carolina and Virginia. First Bank, a progressive ... Pines, North Carolina , selected the Crossmatch ...
(Date:11/21/2014)... According to a new market research report ... Control, Intrusion Detection, Parking Management, Under Vehicle Inspection), End ... - Global Forecasts to 2020", published by MarketsandMarkets, The ... $25 Billion in 2014 and is expected to reach ... 8.69%. Browse 116 market data Tables and ...
(Date:11/21/2014)... 20, 2014 C-Labs LLC, a leading provider ... Things (IoT), today announced the appointment of John ... Previously a strategic advisor to the firm, Mr. Traynor ... Traynor is based out of the C-Labs office in ... Chris Muench , Chief Executive Officer. ...
Breaking Biology News(10 mins):First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3Industrial Security Systems Market Worth $38 Billion by 2020 2Industrial Security Systems Market Worth $38 Billion by 2020 3C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2
... cases, scientists at Johns Hopkins have discovered the genetic origins ... the leading reason for corneal transplantation in the United States. ... the cells covering the clear, outermost lens of the eye ... Late in life, the dystrophy causes swelling of the cornea ...
... by the sleek and efficient propulsion of squid, jellyfish ... researcher has designed a new generation of compact vortex ... maneuver and dock underwater vehicles at low speeds and ... seemingly inspired by the plots of two classic sci-fi ...
... pregnant woman will give birth to a child with Down Syndrome ... Although it is a fact that as women get older, they ... factors also play a role. According to Markus Neuhäuser and ... at University Hospital Essen, in Germany, the risk of a child ...
Cached Biology News:Leading reason for corneal transplants comes into focus 2Leading reason for corneal transplants comes into focus 3Squid-inspired design could mean better handling of underwater vehicles 2Down syndrome: It's not just the age factor 2
(Date:12/19/2014)... (PRWEB) December 18, 2014 iLab Solutions, ... the appointment of Siri Bryant as the new Director ... Director of Core Implementations. These two new leadership positions ... customer service by ensuring that iLab continues to meet ... the last four years, iLab has been deployed at ...
(Date:12/19/2014)... , Dec. 18, 2014  Decision Resources Group ... dental biomaterial market will grow moderately through 2023 as ... and growing awareness of dental biomaterials all spur procedure ... such as China and ... bring dental procedures within reach for a larger proportion ...
(Date:12/17/2014)... The Activated Carbon Manufacturing industry ... IBISWorld updated its original industry research report. , ... intensified focus on environmental policy. Over the five years ... power plants and a range of other industrial facilities ... Sarah Kahn, “a range of downstream industrial sectors rely ...
(Date:12/17/2014)... 17, 2014 Ipsen Biopharmaceuticals, Inc., ... ADR: IPSEY), today announced that Somatuline® ... Somatuline®) was approved by the U.S. Food and ... neuroendocrine tumors (GEP-NETs) in adult patients with unresectable, ... disease to improve progression-free survival (PFS). , “The ...
Breaking Biology Technology:iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 2Activated Carbon Manufacturing in the US Industry Market Research Report Has Been Updated from IBISWorld 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 2Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 3Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 4Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 5Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 6Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 7Ipsen Announces the FDA Approval of Somatuline® Depot® (lanreotide) Injection for the Treatment of Gastroenteropancreatic Neuroendocrine Tumors 8
... ... its Scientific Advisory Board , ... Westlake Village, Calif. (PRWEB) October 9, 2009 -- Nanogea, a nano-biotech company focused on commercializing ... C. Thomas Caskey and Dr. Saul Tendler have joined its scientific advisory board. , ...
... 8 CardioDx, a cardiovascular genomic diagnostics company, announced ... as Chairman of the company,s Board of Directors. CardioDx ... expression test to quantify the likelihood of obstructive(1) coronary ... , "Dr. Lange brings an ideal perspective to ...
... ... completely noninvasive, biometric health evaluation system designed for ordinary people who want to proactively monitor ... ... is the first of its kind, fully automated, and completely noninvasive, biometric health evaluation system ...
Cached Biology Technology:Nanogea Announces New Scientific Advisory Board Members 2Nanogea Announces New Scientific Advisory Board Members 3CardioDx Announces Appointment of Dr. Louis G. Lange as Chairman of the Board of Directors 2CardioDx Announces Appointment of Dr. Louis G. Lange as Chairman of the Board of Directors 3IridoTech Announces IridoLab Self Service Kiosk 2
Request Info...
Multidrop Micro high speed 1 l bulk reagent dispenser rapidly, precisely and accurately dispenses microvolumes of 1-50 l into 384- and 96-well microplates....
...
...
Biology Products: