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Topic: Wacker process


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In the News (Wed 23 Dec 09)

  
  Wacker process - Biocrawler   (Site not responding. Last check: 2007-10-17)
The Wacker process or the Hoechst-Wacker process (named after the chemical companies of the same name) is the oxidation of ethylene by oxygen to acetaldehyde with a palladium(II) chloride catalyst.
The Wacker process is similar to hydroformylation, which is also a industrial process and also leads to aldehyde compounds.
The Wacker process is an example of homogeneous catalysis.
www.biocrawler.com /encyclopedia/Wacker_process   (181 words)

  
 Wacker process - Encyclopedia.com
Wacker process an industrial process for the manufacture of ethanol by oxidizing ethene.
The favorable economics of the process is due to the abundance of ethylene.
WACKER innovative paths to the future: whether biotechnology, silicon or polymer chemistry, WACKER's business fields place it among the world's technology leaders.
www.encyclopedia.com /doc/1E1-Wackerpr.html   (686 words)

  
 Wacker Chemie AG
WACKER, the Munich-based chemicals group, has developed a new silicone softener emulsion for the hydrophilic finishing of textiles.
WACKER POLYMERS will globally increase the prices of food-grade polyvinyl acetate by an average 20 percent.
WACKER is ready for REACH: the new EU legislation shifts the focus of corporate responsibility toward comprehensive risk management in the interests of humans and the environment.
www.wacker.com /cms/en/home/index.jsp   (169 words)

  
 Wacker process - Wikipedia, the free encyclopedia
The Wacker process or the Hoechst-Wacker process (named after the chemical companies of the same name) originally referred to the oxidation of ethylene to acetaldehyde by oxygen in water in the presence of a palladium tetrachloride catalyst
The Wacker process is similar to hydroformylation, which is also an industrial process and also leads to aldehyde compounds.
The Wacker process is an example of homogeneous catalysis.
en.wikipedia.org /wiki/Wacker_process   (662 words)

  
 InternationalReports.net : Bavaria 2002
Wacker has been a leader in developing silicon products to protect historical buildings and other monuments—from ethyl silicates to strengthen stone to silicon resin emulsions to coat buildings and other surfaces.
In the 1980s, Wacker experts worked on restoration of the Capitol building in Washington, D.C., strengthening the crumbling sandstone and coating the entire building in silicon resin emulsion so that it never needed to be painted again.
Wacker also has a ceramics division that is working to develop new compounds for high-tech uses.
www.internationalreports.net /europe/bavaria/2002/wacker.html   (756 words)

  
 iCommunicator Communications Access Technology Improves Communications at Wacker Siltronic - Printer-friendly version
Wacker Siltronic became the first major manufacturing company in the world to purchase an iCommunicator system for use by employees who are deaf or hard of hearing.
Wacker was selected a winner and was presented its award by Oregon Governor John Kitzhaber on October 23, 2001.
Wacker Siltronic is one of the world's leading producers of hyperpure, electronic grade silicon used in semiconductor manufacturing.
www.microsoft.com /enable/casestudy/wacker.aspx?v=p   (978 words)

  
 Olympus Marketing, Inc. - Kaeser   (Site not responding. Last check: 2007-10-17)
Wacker GmbH has decades of experienceand considerable proficiency in the field of Silicon industry.
WACKER HDK is the product of intensive research and continuous development, as well as carefully controlled production conditions.
They cure at room temperature, are easy to process and, because of their great flexibility and good release properties, separate easily from the model.
www.olympus.com.ph /products/wacker/wacker.htm   (1105 words)

  
 Hotel Wacker
Wacker's paintings were to be exhibited in December 1927 in ''Cassirer Exhibition'' by the firm of Paul Cassirer in Berlin.
The Wacker process or the Hoechst-Wacker process (named after the chemical companies of the same name) is the oxidation of ethylene by oxygen to acetaldehyde with a palladium(II) chloride catalyst.
The Wacker process is similar to hydroformylation, which is also a industrial process and also leads to aldehyde compounds.
www.artistbooking.com /trips/98/hotel-wacker.html   (1570 words)

  
 The Wacker Payoff
Wacker Siltronic Corporation is a semi-conductor manufacturer which has made hazardous waste minimization a top corporate priority.
Careful process monitoring and control reduced the number of baths by a factor of 15 In one major process system alone.
Wacker first installed are in cover over the outdoor tanks at a cost of $7,000.
www.p2pays.org /ref/11/10494.htm   (704 words)

  
 C&EN: BUSINESS - WACKER DRIVE
Unlike sealing processes in which silicone is applied to parts that are then pressed together, in liquid injection sealing, a base silicone material and a catalyst are injected into a groove cast into the parts.
The result, Wacker says, has been an 85% decrease in raw material costs and a reduction in leak failures from 3% to zero in 750,000 units on the road.
The technology is similar to the one found on the 1996 Mustang, which used a "color-flop" paint developed by BASF, except the effect from Helicone HC is not intended to be as dramatic.
pubs.acs.org /cen/business/8140/8140wacker.html   (882 words)

  
 Prairie Material Provides All Concrete for Chicago's Wacker Drive Reconstruction
Wacker Drive in Chicago is one of the most important thoroughfares in the city.
Lower Wacker Drive provides service access for 57 high-rise buildings while the upper level serves as a roadway to distribute traffic for seven major north/south streets and nine east/west streets within the central business district.
The city then conducted a pre-qualification process for concrete suppliers who could either use the recommended mix design or design their own.
www.prairiegroup.com /projects/wacker.asp   (508 words)

  
 MICRO: Facility Report
Wacker's Burghausen site has 130 crystal pullers, half of which are dedicated to 200- and 300-mm production.
The factory floor varies from high-end cleanrooms in the front and back ends of the process to machine-shop-like conditions for some of the dirtier work, from state-of-the-art metrology to technicians using rulers to measure slug diameters.
To prepare for future tightening of requirements, the Wacker team is developing processes on CMP equipment from three of the major suppliers.
www.micromagazine.com /archive/02/07/facilityrprt.html   (2416 words)

  
 SmartEquip - Wacker Corporation   (Site not responding. Last check: 2007-10-17)
GERMANTOWN, WI - January 5, 2004 - Wacker Corporation, the leader in providing exceptional customer care to its construction equipment customers, announces that it is participating in SmartEquip's e-FleetPro network, allowing Wacker to deliver another dimension in customer service to the rental companies who use e-FleetPro as their electronics parts and service support solution.
"We are extremely pleased that Wacker is joining the SmartEquip Network, recognizing that there are key opportunities for us to deliver business improvement to these rental operators by addressing some of the most pressing issues in their parts and service departments," said Alex Schuessler, SmartEquip's President and Chief Executive Officer.
Wacker employs around 2,300 people worldwide with manufacturing centers in Germany, USA and the Philippines.
www.smartequip.com /newsroom_wacker.htm   (364 words)

  
 Wacker Fine Chemicals @ ChemBuyersGuide.com, Inc.
WACKER FINE CHEMICALS, a division of Wacker Chemie AG, is a global technology leader and customized-solutions expert in fine chemicals and biotechnology.
WACKER is the world's leading producer of cyclodextrin products, including parent (natural) cyclodextrins, cyclodextrin derivatives and inclusion complexes (encapsulated products).
The process is based on a bacterial strain which has been 'metabolically designed' to synthesize L-Cysteine from dextrose and is the only process to use renewable resources of non-human or non-animal origin.
www.chembuyersguide.com /partners/wackerfinechemicals.html   (264 words)

  
 Wacker Drive - Wikipedia, the free encyclopedia
Wacker Drive is a major street in Chicago, Illinois, United States, running along the downtown side of the Chicago River.
This S-curve was on a viaduct over the Illinois Central Railroad's rail yard, and was at the level of Upper Wacker; the middle and lower levels dead-ended at that point.
The current alignment of Lake Shore Drive was finished in 1986, and in 1987 Middle Wacker was extended to meet the new alignment.
en.wikipedia.org /wiki/Wacker_Drive   (616 words)

  
 Wacker oxidation   (Site not responding. Last check: 2007-10-17)
The Wacker process is one of the first successes of industrial catalytic science.
With the motivation of using the Wacker process as a test case, a thorough and continuous mechanism is determined with density functional theory (DFT) methods and solvation models simulating structures optimized in solution.
As a testament to performance of this model, the energetics of the rate determining step is characterized to the experimentally observed barrier within the error of the calculation method.
www.wag.caltech.edu /catalysis/projects/wacker.html   (223 words)

  
 Stillwater Palladium : Palladium in chemical applications
Ethanol is produced using palladium catalysts through the “Wacker Process”.
This process manufactures ethanol by oxidizing ethane, yielding 95% acetaldehyde which is converted to the ethanol.
The process is run in one vessel at slightly elevated temperatures and pressures (50-130 °C and 3-10 atm).
www.stillwaterpalladium.com /chemical.html   (316 words)

  
 Granulator with Parsum Probe - Wacker Chemical Case Study   (Site not responding. Last check: 2007-10-17)
WACKER Chemical is a global technology leader and a customized solutions expert in fine chemicals and semi-conductor operations.
The average particle size produced for a given feed is primarily a function of the diameter of the granulator wheel and the RPM.
It's obvious from the graph that increasing the RPM of the granulator clearly decreased the particle size and when the RPMs of the disk granulator were decreased, the spray dryer produced a product with a larger particle size.
www.malvern.co.uk /ProcessEng/industries/chemical/case_study_Wacker.htm   (286 words)

  
 50 Years of Silicon at Wacker Siltronic
The breakthrough came with the so-called C process, in which silicon is deposited from trichlorosilane and hydrogen.
WACKER developed new processes to meet the requirements in the microscopic structure and the cleanness of the surfaces.
But new processes are also required for the downstream operations at WACKER - for instance, sawing, lapping and polishing - necessiting a series of new investments for processing the ever more advanced wafers.
www.future-fab.com /document.asp?d_id=1888   (2332 words)

  
 Sun Microsystems Global Alliances: Sun and SAP   (Site not responding. Last check: 2007-10-17)
The migration process was accompanied by rigorous testing procedures, many of them specifically designed by Sun Professional Services.
Wacker Chemie's benchmark response time of 1,000 ms per dialog-contractually stipulated as a prerequisite for SAP System release 4.5B - was practically cut in half.
Wacker's most decisive criteria for assessing the Sun Enterprise 10000 server solution are stability and performance in the cluster as well as the scalability of the total solution.
www.sun.com /third-party/global/sap/success/wacker.html   (720 words)

  
 Regioselectivity in the Wacker Oxidation of Propenylbenzenes - [www.rhodium.ws]   (Site not responding. Last check: 2007-10-17)
Regioselectivity in the Wacker Oxidation of Propenylbenzenes - [www.rhodium.ws]
Indeed, we also found this prediction to be valid in the case of a Wacker oxidation of a model substrate, β-methylstyrene, which yielded phenylacetone and propiophenone in a 3:1 ratio (case a in eq 1).
However, when this oxidation was repeated with β-tetrahydropyranyl styrenes (case b in eq 1), we observed the opposite regioselectivity, leading to the phenyl ketones exclusively.
www.erowid.org /archive/rhodium/chemistry/wacker.regioselectivity.html   (302 words)

  
 Germany : WACKER develops process-stable hydrophilic softener for textile finishing - Textile News Germany
WACKER has developed a new silicone softener emulsion for the hydrophilic finishing of textiles.
WETSOFT NE 580, a microemulsion concentrate based on hydrophilic modified silicones, offers a range of effects and properties that is unmatched by any other hydrophilic softener.
Compared with conventional silicone-based softeners, WETSOFT NE 580 is first and foremost extremely stable when exposed to high pH values, elevated temperatures, high shear and in the presence of salts.
www.fibre2fashion.com /news/company-news/wacker-chemie/newsdetails.aspx?news_id=40783   (298 words)

  
 reveries.com - watts wacker - marketing strategy
As soon as you finish your process of visioning, it already starts operationalizing itself as your present -- so it's not your future anymore.
So, Kodak has to go through the process of envisioning what imaging is becoming at the same time they stay involved in the current imaging technologies.
So the Fool helps companies find that the constant in their future is their beliefs, and that the evolutionary process is tied to what they do.
www.reveries.com /reverb/marketing_strategy/wacker   (2449 words)

  
 [No title]   (Site not responding. Last check: 2007-10-17)
In the 1960s, the Wacker 2-step ethylene oxidation process via acetaldehyde became a commercial process, while methanol carbonylation technology began to emerge as a serious contender and has become today's dominant acetic acid technology.
In the late 1990s, Showa Denko commercialized an improved ethylene oxidation process by using a one-step oxidation process instead of the old 2-step oxidation as used in the Wacker process.
Showa Denko has developed an environmentally friendly, energy saving process by combining the extraction and the distillation operation in which by-product water is efficiently separated from acetic acid.
www.chemsystems.com /newsletters/perp/Oct03_N02-1.cfm   (1333 words)

  
 Wacker-Chemie AG @ ChemBuyersGuide.com, Inc.
WACKER FINE CHEMICALS, a division of WACKER, is a global technology leader in fine chemicals and biotechnology.
With several research labs and pilot plants, WACKER is well equipped to translate new developments from the laboratory to commercial production.
WACKER FINE CHEMICALS produces organic fine chemicals and organosilanes in several multi-purpose units at our Burghausen plant in Germany.
www.chembuyersguide.com /partners/wacker.html   (343 words)

  
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www.cme.com /about/ins/privacy.html   (1757 words)

  
 303 East Wacker : ENERGY STAR
Built in 1979, and designed by Fujikawa Johnson and Associates, the property is a handsome International Style tower, distinguished by a curtain wall of bronze-finished aluminum and reflective glass, and a two-story colonnaded arcade at ground level.
The ENERGY STAR was earned by 303 East Wacker as a result of both retrofits made during the renovation process, and changes in energy management practices.
Hines, the EPA's ENERGY STAR Partner of the Year in 2001, 2002 and 2003, as well as the recipient of the EPA's Sustained Excellence in Energy Management award in 2004, is proud to participate in the ENERGY STAR program, considering it an aid to leasing, and a sound and responsible business decision.
www.energystar.gov /index.cfm?fuseaction=labeled_buildings.showProfile&profile_id=1001124   (259 words)

  
 BioProcess International - Covering the whole development process for the global biotech community
The increasing demand for monoclonal antibodies (MAbs) as biopharmaceuticals has promoted the development of cell cultures with high titers.
As a consequence, the demand for more efficient purification processes has increased.
Capto™ adhere is a multimodal BioProcess™ medium designed for post-Protein A purification of MAbs at process scale.
www.bioprocessintl.com   (386 words)

  
 [No title]   (Site not responding. Last check: 2007-10-17)
] A process for the oxidation of ethylene to acetaldehyde by oxygen in the presence of palladium chloride and cupric chloride.
] A flat element for a process unit, as in a series of stacked filter elements.
] The state of a computer program in which it cannot use the central processing unit normally because the unit is waiting to complete an input/output operation.
www.accessscience.com /Dictionary/W/W1/DictW1.html   (1823 words)

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