Exxon Chemical Research Articles

Roger K. West

Roger K. West, 84, died July 30, 2022, in Montclair, New Jersey. “Roger’s high school career assessment determined he should be a plumber. His family often joked that despite his PhD, working in a polymer reactor plant connecting pipes and actuating valves was not so far from that early prediction. Roger had a productive 30-year career at Exxon’s polymer division, eventually being named an ACS Hero of Chemistry for his work on viscosity modifiers for engine oil. He enjoyed a second career as a patent searcher. Outside of work, Roger was a steadfast family man who also loved to sing, taste wine, and study languages—including French and Mandarin. He is greatly missed.”—Sharon West, daughter Most recent title: Research and Development Engineer, Exxon Chemical Education: BS, chemical engineering, Cornell University, 1961; PhD, chemical engineering, Cornell University, 1965 Survivors: Wife, Mary Lou; children, David and Sharon; four grandchildren To recognize your late

Statement of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food on a request from the Commission on the possibility of allocating a group‐TDI for Butylbenzylphthalate

EFSA JournalVolume 3, Issue 9 747 StatementOpen Access Statement of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food on a request from the Commission on the possibility of allocating a group-TDI for Butylbenzylphthalate European Food Safety Authority (EFSA), European Food Safety Authority (EFSA)Search for more papers by this author European Food Safety Authority (EFSA), European Food Safety Authority (EFSA)Search for more papers by this author First published: 19 September 2005 https://doi.org/10.2903/j.efsa.2005.747 Adoption date: 28 June 2005 Published date: 19 September 2005 Question number: EFSA-Q-2005-00304 On request from: EFSA AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat References Aristech Chemical Corporation (1994). 2-Year Dietary Oral Toxicity Study in Rats with Diisononyl Phthalate. TSCA 8(e) Submission 8EHQ-0794-13083. CAS Number 68515-48-0. Dated July 13, 1994. Exxon Biomedical Sciences (1996a). Reproduction Toxicity Study in Rats with Diisononyl Phthalate (DINP; MRD-92-455). Project Number 145535 from Exxon Biomedical Sciences, Inc. submitted to Exxon Chemical company and Exxon Chemical Europe, Unpublished Laboratory Report, March 8, 1996. Exxon Biomedical Sciences (1996b). Two Generation Reproduction Toxicity Study in Rats with Diisononyl Phthalate (DINP; MRD-92-455). Project from Exxon Biomedical Sciences Inc submitted to Exxon Chemical Company and Exxon Chemical Europe, Unpublished Laboratory Report, February 29, 1996. Exxon Biomedical Sciences (2000). Two Generations Reproduction Toxicity Study in Rats with Di-isodecyl Phthalate (DIDP; MRD-94-775). Project No 177535A performed for Exxon Chemical Company and Exxon Chemical Europe. Hazleton Laboratories (1968). 13-Week Dietary Administration - Dogs Plasticiser (DIDP) submitted to WR Grace and Company. Lee K.Y., Shibutani M., Takagi H., Kato N., Shu T., Unemaya C. and Hirose M. (2004). D. Toxicology, 203, 221– 238. NTP. (1997). National Toxicology Program. Report No. 458, NIH publication No. 97-3374. Toxicology and carcinogenesis studies of butyl benzyl phthalate in F344/N rats (feed studies). Tyl RW, Myers CB and Marr MC. (2001). Two-generation reproductive toxicity evaluation of Butyl Benzyl Phthalate administered in the feed to CD (Sprague-Dawley) rats. RTI Project No. 65C-0726-200, RTI Protocol No. RTI-761. Tyl RW, Myers CB and Marr MC. (2004). Reproductive toxicity evaluation of Butyl Benzyl Phthalate in rats. Reproductive Toxicology, 18, 241– 264. Wolfe GW, Layton KA (2003) Multigeneration reproduction toxicity study in rats: Diethylhexylphthalate: Multigenerational reproductive assessment when administered to Sprague-Dawley rats in the diet. TherImmune Research Corporation ( Gaithersburg, Maryland), TRC Study n° 7244-200. Volume3, Issue9September 2005747 ReferencesRelatedInformation

NOVEON SETS FOCUS, STRATEGY

STEVEN J. DEMETRIOU IS A MAN with a mission. As president and chief executive officer of Noveon, the 42-year-old executive is charged with making the company, the former BFGoodrich Performance Materials business, into a successful stand-alone operation focused entirely on specialty chemicals. His is the chance of a lifetime. Demetriou, a chemical engineer from Tufts University, joined Noveon in March and says he relishes the entrepreneurial challenge. He had been president of IMC Global's crop nutrient division when Noveon's new owners sought him out to restructure the hodgepodge of specialty chemicals businesses they bought in February He spent his first 17 years in business at Exxon Chemical and subsequently held senior management positions at American Cyanamid spin-off Cytec Industries. His goal: make Noveon so attractive that the private investors who bought it can cash out—at a hefty premium to the $1.4 billion they paid for the company—through a sale to a ...

Biodegradation of Poorly Water-Soluble Volatile Aromatic Compounds from Waste Air

The main research goals of this work were: (1) Measurements in order to obtain the stationary degradation kinetics of volatile aromatic compounds (VOC) in a laboratory-scale trickle-bed bioreactor. Polyalkylated benzenes (Solvesso 100, Deutsche Exxon Chemical GmbH, Koln, Germany) were chosen as the model substance. Solvesso 100 mainly consists of C 9 -aromates (i.e., pseudo-cumene, methylethylbenzenes and other isomers) and C 10 -aromates (e.g. diethylbenzene). Comparable products are on the market, such as Shellsol A or Deasol 99. These substances are mainly used as solvents in a large number of industrial applications. However, little research effort exists so far with regard to their biological degradation from waste air. (2) Evaluation of the influence of a high-boiling dissolving intermediary. It is known from the literature that substances, such as silicone oil, are capable to facilitate the availability of VOC as the carbon source for the active biomass. This was proven with the model substances styrene, toluene, and xylenes. Hence, the aim of this work was the quantitative evaluation of the improvement of the biodegradation rate due to the presence of silicone oil.

ABSTRACT: Using A Risk Based Approach and Integrated Remedial Technologies to Close a Chlorinated DNAPL Site in under a Decade: A Timeline of Events

Abstract Contamination of the shallow soils and ground water at the Exxon Chemicals Baton Rouge Polyolefins Plant was caused by disposal of chlorinated hydrocarbons in an unlined pit. Using a team approach of on-site, regulatory, and consulting personnel, the site was thoroughly investigated, resulting in a model of the soils and three upper water-bearing units found to be impacted by multiple contaminants. Soil vapor extraction, air sparging, and pump and treat technologies for contamination removal were proposed and implemented after agency approval. During the past 5+ years of operation, the system effectiveness has been monitored and adjustments made to enhance contaminant recovery. Continuous water production and analytical monitoring provided detailed data of contaminant decreases and water volume. The Louisiana Department of Environmental Quality RECAP (Risk Evaluation/Corrective Action Program) regulation is the governing program used to determine actions for contaminated sites. Final cleanup levels based on site-specific parameters and exposure risk evaluations under this program have set an achievable endpoint to this remediation effort. For the past year of operation in this industrial setting, the soils and three ground water recovery systems have met the MO-1 levels of contamination determined to be protective of human health and the environment. The poster presentation illustrates the progress of a timely remediation program from the initial discovery to the final conclusion that the site no longer presents a risk. A program of this sort can only succeed through the cooperation and focussed attention of a team dedicated to achieving a reasonable goal. End_of_Record - Last_Page 714-------

Great Reactions are Nothing New to Exxon Chemical Neo Acids.

Great Reactions are Nothing New to Exxon Chemical Neo Acids.

Extraction of germanium from acidic leach solutions by liquid membrane technique

Precipitates from a zinc plant (CINKUR Co., Turkiye) electrolyte purification section consist an average of 1200 ppm germanium, 10% copper, 15% zinc, 2.5% cadmium, 0.2% cobalt, and 8% iron. The precipitate or "copper" cake has been leached with sulphuric acid, and thus acidic leach liquors are obtained. The application of emulsion liquid membrane technique to the extraction of germanium from the acidic leach liquors is examined. The important variables governing the permeation of germanium through liquid membranes and their effects on the separation process are studied. These variables are the membrane type and composition, surfactant type and composition, carrier composition, pH, and various additives or modifiers. The carrier or the extractant used is an alkylated hydroxyquinoline, Kelex 100 that is manufactured by Schering Berlin AG, Germany. Under the suitable conditions it is possible to selectively extract 95% of germanium from the acidic leach solutions, containing Cu, Zn, Cd, Co and Fe ions, using the carrier Kelex 100. The authors wish to express their sincere gratitude to Exxon Chemical Co., U.K. and Belgium, for supplying the surfactant ECA 4360J, the solvents STA90 NS and Escaid 110.

Great Reactions are Nothing New to Exxon Chemical Neo Acids.

RETURN TO ISSUEPREVAdvertisementNEXTGreat Reactions are Nothing New to Exxon Chemical Neo Acids.Cite this: Chem. Eng. News 1999, 77, 18, 26Publication Date (Print):May 3, 1999Publication History Published online12 November 2010Published inissue 3 May 1999https://doi.org/10.1021/cen-v077n018.p026Copyright © 1999 AMERICAN CHEMICAL SOCIETYArticle Views7Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (324 KB) Get e-Alerts

Abstract: Achieving Remedial Endpoints Using a Risk Based Approach and Integrated Remedial Technologies to Mitigate Impacted Aquifers at Exxon Chemicals Baton Rouge Polyolefins Plant 

ABSTRACT The disposal of chlorinated hydrocarbons in an unlined pit prior to RCRA regulations contaminated the shallow ground water at the Exxon Chemicals Baton Rouge Polyolefins Plant. This impact was discovered through a due diligence survey. Through successive investigations the upper three water-bearing units were found to be impacted by multiple contaminants which formed both a dissolved and a DNAPL plume. Soil vapor extraction and air sparging in the uppermost zone and pump and treat for contaminated water removal in all three zones was proposed and implemented after Agency approval. During the past 4+ years of operation, the system effectiveness has been monitored and adjustments made to enhance contaminant recovery. With the recent promulgation of LDEQ RECAP Regulations, final cleanup levels based on site specific parameters and exposure risk evaluations have set an achievable endpoint to this remediation effort. The primary concern in this project has been the control of downward migration of contaminants and restoration of the shallow aquifers. Now the focus is on exposure pathways and receptors that may be exposed to the reduced levels of contaminants. In this evaluation, if no exposure occurs or the levels are below those that present health risks to any receptors, then the remediation has been effective and may be terminated. This paper will focus on the team approach to managing the problems of downward movement of DNAPLs, improving contaminant recovery, determining exposure pathways, evaluating risk to receptors and developing and implementing timely and reasonable environmental solutions. End_of_Record - Last_Page 5-------

Toxicology of n-pentane (CAS no. 109-66-0).

n-Pentane (CAS no. 109-6-0) is a hydrocarbon solvent with an estimated production volume of 50000 metric tons in Europe. The present work was carried out to strengthen the toxicological information available for regulatory decision-making, particularly product classification, occupational exposure limits and risk assessment. The work described in this report was sponsored either by the Pentane Special Interest Group under the auspices of the Hydrocarbon Solvent Producers Association of CEFIC (European Chemical Industry Council) or by Exxon Chemical Europe. The following results were obtained: n-pentane was not acutely toxic by oral or inhalation routes, it was not a skin or eye irritant and did not induce skin sensitization. It did not exhibit cumulative toxicity at levels up to 20000 mg m(-3), which is approximately one-half of the lower explosive limit and the highest level considered safe to test. It did not induce developmental toxicity and was not mutagenic. From this and other existing information, it is concluded that n-pentane does not require classification for potential toxic hazards (as defined by Annex VI of the EU Dangerous Substance Directive, 1993), although the physical properties indicate that it would be appropriate to warn for the potential for aspiration. Further, there is no reason to reduce the current occupational exposure recommendations. Finally, although there are some safety issues relating to the flammability of n-pentane, the absence of any demonstrable toxicity at high treatment levels indicates that the risk of adverse health effects is minimal for all segments of the population.

The application of nonlinear dynamic data reconciliation to plant data

We have extended a fairly comprehensive data reconciliation approach called nonlinear dynamic data reconciliation (NDDR) that was originally presented by Liebman et al. (1994, Comput. Chem. Engng, 16, 963–986). This approach is capable of reconciling data from both steady-state and dynamic processes as well as estimating parameters and unmeasured process variables. One recently added feature is the ability to detect measurement bias. Each of these features were developed and tested using computer simulation. In this paper we report the successful application of NDDR to reconcile actual plant data from an Exxon Chemicals process.

Exxon Chemical, Jinzhou Petrochemical sign contract for lube additives project

Exxon Chemical, Jinzhou Petrochemical sign contract for lube additives project

Exxon Chemicals Neo Acids Are Producing Some Great Reactions

Exxon Chemicals Neo Acids Are Producing Some Great Reactions

Metallocene-Catalyzed Copolymerization of Ethylene and Isobutylene to Substantially Alternating Copolymers.

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTMetallocene-Catalyzed Copolymerization of Ethylene and Isobutylene to Substantially Alternating CopolymersTimothy D. Shaffer, Jo Ann M. Canich, and Kevin R. SquireView Author Information Exxon Chemical Company, Baytown Polymers Center, 5200 Bayway Dr., Baytown Texas 77520 Cite this: Macromolecules 1998, 31, 15, 5145–5147Publication Date (Web):July 3, 1998Publication History Received9 February 1998Revised15 May 1998Published online3 July 1998Published inissue 1 July 1998https://doi.org/10.1021/ma980196bCopyright © 1998 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views613Altmetric-Citations68LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit Read OnlinePDF (59 KB) Get e-AlertsSUBJECTS:Catalysts,Copolymerization,Copolymers,Ethylene polymerization,Hydrocarbons Get e-Alerts

5565092 Halogen resistant hydrogenation process and catalyst: Pannell Richard; Maroie Serge M J P Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

5565092 Halogen resistant hydrogenation process and catalyst: Pannell Richard; Maroie Serge M J P Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

Exxon To Provide Competition For Shell In Vinyl Esters Market

Exxon Chemical's recent announcement of its plan to offer vinyl esters to the U.S. and other North American markets pits the company against Shell Chemical, which has been the only major manufacturer of these products for the past 35 years. Beginning in fourth-quarter 1997, the vinyl esters will be made in Geismar, La., through a limited partnership agreement between Enjay, a wholly owned subsidiary of Exxon Corp., and Borden Chemicals & Plastics, Columbus, Ohio (C&EN, July 14, page 17). The primary difference between Shell and Exxon in this market is that Exxon will provide local manufacture whereas Shell supplies vinyl esters to the U.S. from its manufacturing base in Europe. Exxon cites North American manufacture as an important reason for entry in vinyl esters. Due to lack of domestic supply, we believe that vinyl esters have not realized full potential in North American operations, notes Tom H. Henry, manager of acids and derivatives for Exxon ...

5552358 Polymerization catalyst systems, their production and use : Speca Anthony Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

5552358 Polymerization catalyst systems, their production and use : Speca Anthony Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

5552363 Halogen resistant hydrogenation process and catalyst : Pannell Richard B; Maroie Serge M J P Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

5552363 Halogen resistant hydrogenation process and catalyst : Pannell Richard B; Maroie Serge M J P Kingwood, TX, United States assigned to Exxon Chemical Patents Inc

5541350 Amido silyldiyl bridged catalyst components, methods of making and using : Murata Masahide; Burkhardt Terry J Ohi machi, Japan assigned to Exxon Chemical Patents Inc

5541350 Amido silyldiyl bridged catalyst components, methods of making and using : Murata Masahide; Burkhardt Terry J Ohi machi, Japan assigned to Exxon Chemical Patents Inc

5536796 Polymerization catalysts, their production and use : Jejelowo Moses O; Bamberger Robert L Kingwood, TX, United States assigned to Exxon Chemical Company

5536796 Polymerization catalysts, their production and use : Jejelowo Moses O; Bamberger Robert L Kingwood, TX, United States assigned to Exxon Chemical Company