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Henkel Technologies

Henkel Rearrangement of Benzoic Acid and Phthalic Anhydride. Henkel technology is based on the conversion of benzenecarboxyhc acids to their potassium salts. The salts are rearranged in the presence of carbon dioxide and a catalyst such as cadmium or zinc oxide to form dipotassium terephthalate, which is converted to terephthahc acid (59—61). Henkel technology is obsolete and is no longer practiced, but it was once commercialized by Teijin Hercules Chemical Co. and Kawasaki Kasei Chemicals Ltd. Both processes foUowed a route starting with oxidation of napthalene to phthahc anhydride. In the Teijin process, the phthaHc anhydride was converted sequentially to monopotassium and then dipotassium o-phthalate by aqueous recycle of monopotassium and dipotassium terephthalate (62). The dipotassium o-phthalate was recovered and isomerized in carbon dioxide at a pressure of 1000—5000 kPa ( 10 50 atm) and at 350—450°C. The product dipotassium terephthalate was dissolved in water and recycled as noted above. Production of monopotassium o-phthalate released terephthahc acid, which was filtered, dried, and stored (63,64). [Pg.488]

Henkel Technologies Henkel Corporation Dial Corporation Dail International, Inc. [Pg.300]

Mitsubishi Chemical Industries, Ltd. practiced a Henkel II technology starting with toluene to produce benzoic acid. Reaction of benzoic acid with potassium hydroxide resulted in potassium benzoate, which was subjected to a disproportionation reaction to produce dipotassium terephthalate and benzene. Dipotassium terephthalate reacted with sulfuric acid, and the resulting terephthahc acid was recovered by filtration and drying (65,66). Here, dipotassium sulfate was the by-product. [Pg.488]

James R. Bolch, Sr. VP/Pres., Industrial Technologies Sector Steven B. Hochhauser, Sr. VP/Pres., Security Technologies Sector Mary Beth Gustaffson, VP/Deputy General Counsel Richard W. Randall, VP/Controller Herbert L. Henkel, Chmn. [Pg.295]

Henkel has developed a continuous countercurrent esterification using a doubleplate reaction column. The technology is based on the principle of an esterification reaction with the simultaneous absorption of the superheated methanol vapor and desorption of the methanol-water mixture (15). [Pg.2996]

Biermann M, Schmid K, Shulz P (1994) Alkyl polyglycosides technology and propaties. Henkel Referate 30 7-15 16. Rybinski W, Hill K (1998) Angew Chem Int Ed 37 1328-1345 Van der Burgh LF, Sommer SJ (1983) Eur Patent EP 92355... [Pg.108]

EMS 17 sites are certified to ISO 14001 and seven sites to the EMAS. The Surface Technology, Adhesives and Henkel-Ecolab product divisions have general objectives to obtain group-wide verification to the EMAS and/or ISO 14001. Fifteen further sites have objectives to obtain certification to ISO 14001 during 1999 and 2000. [Pg.239]

The molar selectivity of terephthalic acid in the metathesis reaction is 97 per cent for a once-through conversion of potassium terephthalate of about 85 per cent The potassium terephthalate molar selectivity of the disproportionation reaction is 85 per cent for a conversion of 90 per cent This process, despite the improvements made to the Henkel 2 technology, and the value it offers by starting with toluene, which is cheaper than p-xylene, and co-production of easily marketable benzene, has nevertheless not yet been employed industrially. [Pg.297]

Preservative, bacteriostat, fungistat for soluble cutting fluids, coolants and other products. Registered by EPA as an antimicrobial and disinfectant. Arch Chemicals Inc Avecia Inc. BASF Microcheck Ltd. Buckman Laboratories Inc. Clariant Corp. Dow Chem. U.S.A. Henkel Surface Tech Nalco Diversified Technologies, Inc. Nipa ... [Pg.312]

Surface-mount adhesives 35-50% epoxy resin, 1-10% amine or polyamine curing agent, and 10-30% mineral filler and thixotrope Mondur MC/castor oil and castor oil polyols (>60%), filler 5%) Eccobond 125F (Henkel), Epo-Tek 70E-4 (Epoxy Technology), Epi-bond 7275 (Cookson Electronics) Flexobond 442 (Bacon Industries)... [Pg.119]

Adhesives for jet dispensing must have relatively low viscosities of approximately 120,000 cP at 5 rpm, or 20,000-40,000 cP at 10 rpm, and fast recovery of thixotropic properties after dispensing (narrow hysteresis in viscosity loop). Examples of SMT adhesives that are jet dispensible are Henkel s Loctite 3621 and Epoxy Technology s Epo-Tek H70E. ... [Pg.196]

Loctite 3621 , Henkel technical data sheet (Nov. 2001) Epo-Tek H70E, Revision 2, Epoxy Technology Data Sheet. Mar. 1998. [Pg.215]

In order to inspire students to become even more creative, Henkel established a special award for the best use of adhesive throughout the entire contest. Submissions are judged on the attractiveness and creativity of the bonding application, the way the adhesive was selected and verified, the presentation made to the jury, and the students knowledge about bonding technologies. [Pg.13]

Henkel operates worldwide with leading brands and technologies in three business areas Laundry Cr Home Care. Cosmetics/Toiletries and Mhesive Technologies. Founded in 1876. Henkel holds globally leading market positions both in the consumer and industrial businesses with well-known brands such as Persil, Schwarzkopf and loctite. Henkel s preferred shares are listed in the Qerman stock index DAX. and the company ranks among the Fortune Qlobal 500. [Pg.14]

Institute of Technical Chemistry and Petrochemistry, Aachen University of Technology, D-5100 Aachen Present address Henkel KGaA, P.O. Box 1100,... [Pg.59]

Kohler JM, Henkel T, Grodrian A, Kimer T, Roth M, Martin K, Metze J (2004) Digital reaction technology by micro segmented flow - components, concepts and applications. Chem Eng J 101 201... [Pg.2211]

Thomas Henkel Department of Nanobiophotonics, Institute of Photonic Technology (IPHT), Jena, Germany... [Pg.3557]

PHILIP H. BRODSKY, Monsanto Company MARVIN H. CARUTHERS, University of Colorado GREGORY R. CHOPPIN, Florida State University FRED P. CORSON, Dow Chemical Company MOSTAFA EL-SAYED, Georgia Institute of Technology JOANNA S. FOWLER, Brookhaven National Laboratory BERTRAM O. FRASER-REID, Duke University JUDITH C. GIORDAN, Henkel Corporation JOSEPH G. GORDON II, IBM Almaden Research Center L. LOUIS HEGEDUS, W.R. Grace Co. [Pg.435]

See other pages where Henkel Technologies is mentioned: [Pg.164]    [Pg.434]    [Pg.546]    [Pg.820]    [Pg.300]    [Pg.17]    [Pg.164]    [Pg.434]    [Pg.546]    [Pg.820]    [Pg.300]    [Pg.17]    [Pg.384]    [Pg.452]    [Pg.452]    [Pg.412]    [Pg.300]    [Pg.474]    [Pg.849]    [Pg.697]    [Pg.512]    [Pg.278]    [Pg.91]    [Pg.141]    [Pg.296]    [Pg.257]    [Pg.553]    [Pg.59]    [Pg.119]    [Pg.329]    [Pg.14]    [Pg.515]    [Pg.671]    [Pg.577]    [Pg.465]    [Pg.508]    [Pg.837]    [Pg.851]   
See also in sourсe #XX -- [ Pg.434 ]



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