Catalytica Associates

A variation of the Pd/Cu Wacker-Hoechst process, termed OK Technology, has been proposed by Catalytica Associates (40—46). This process avoids the use of chlorides and uses a Pd/Cu catalyst system which incorporates a polyoxoanion and a nitrile ligand. 

E.R. Evitt, Catalytica Associates, Inc In their work with amide-linked cofacial porphyrins, Collman and Anson have only observed 100% four-electron O2 reduction in the four-atom-bridged member of the series. Your comments implied four-electron O2 reduction is observed with the five and eight as well as four-atom bridged methylene-linked cofacial porphyrins you have prepared. Is such activity observed for the compounds with longer linkages ... 

E.R. Evitt, Catalytica Associates, Inc. Have you prepared polymethylene-linked cofacial porphyrins that contain two different metals in the cofacial unit Is it possible to prepare polymethylene-linked cofacial porphyrins that are unsymmetrical by virtue of two different length bridges in the same molecule ... 

Thaddeus E. Whyte, Jr. Catalytica Associates, Inc. Mountain View, California... 

Catalytica Associates Inc., Selective Oxidation of Hydrocarbons a Critical Analysis . Multiclient Study no. 1077, 1979, Santa Clara, CA. 

Present address Catalytica Associates, Inc., Santa Clara, California 95051. 

Present address Catalytica Associates, Inc., Palo Alto, California 94304. t Present address Department of Chemistry, University of Southern California, Los Angeles, California 90007. 

Catalytica Associates uses heteropolyoxoacids [51] such as H3PM06V6O40 as oxidants this was first described by Matveev et al. [30] for ethylene and by Davison et al. [52] for butene oxidation. Catalytica claims this catalyst for the production of acetaldehyde, acetone, and methyl ethyl ketone, as well as for higher ketones, and furthermore that it can be used in unmodified Wacker two-stage plants. 

SCHEME 4. Carbonylation of aniline and nitrobenzene to methyl N -phenyl carbamate (Catalytica Associates, Nippon Kokan and Haldor Topsoe), and conversion to isocyanates... 

Supporting systems studies are being conducted by Gilbert/ Commonwealth, Inc., Gorham International, Inc., Science Applications, Inc., and Catalytica Associates, Inc. 

Catalytica Associates, Inc. is conducting a study to produce a systematic assessment of the role of catalysis in thermochemical conversion via gasification and liquefaction. This study is also examining the potential impact of catalytic concepts under development in other areas, such as coal conversion, and new reactor technology on biomass conversion. 

Other companies like Hitachi in Japan, Catalytica Associates in the United States, and Haldor Topsoe in Denmark have proposed other systems engineering approaches similar to these two cases described above. The principle everywhere is the same bring in a catalyst for the specific and local limited requirement in a small part of the combustor, use different catalysts for different zones in the combustor, and protect these catalysts from extreme conditions for which they are not designed. 

In addition to the 19 main papers, two short papers and nine posters (preceded by short oral presentations) were featured at the Seminar. Nine of these eleven short communications are summarized in the form of abstracts on pages 261-286. The titles of these communications are listed in the Table of Contents. Abstracts of two communications are not included that of D. Valentine, Jr. (Catalytica Associates, Inc.) on phosphines having both chiral phosphorus and chiral ligands has been published in... 

Direct Partial Oxidation to Methanol. - The direct partial oxidation (DPO) route offers the advantage of direct conversion of methane to methanol. The oxidants include air, oxygen, and nitrous oxide. Recently, Pitchai and Klier, Gesser et al., Foster, Scurrell, and Kuo gave comprehensive reviews on this process. Catalytica Associates also discussed this subject in a client-private report. 

The oxidative coupling process was reviewed by Catalytica Associates and, to a lesser degree, by Pitchai and Klier and Kuo very brief discussions are available in articles by Scurrell and Bhasin. Several reviews on this subject have also been published recently. ... 

So far, liquid-phase activation has not produced a practical process although activation, as demonstrated by insertion of methane into various complexes, was achieved recently. Excellent reviews on methane activation using metals and metal complexes were given by Catalytica Associates, Shilov, and Gibson et al. No detailed review is given here. 

Economic Evaluation Methane to Liquid Hydrocarbon FuelsK -Evaluation studies on the above three processes to produce liquid fuels were performed by Mobil, MITRE,and Bechtel. Cost impact projections of additional potential improvements were independently estimated by Catalytica Associates. The potential for the partial oxidation route, together with an economic evaluation, was also reported by Edwards and Foster. An economic evaluation of producing gasoline and distillate fuels from methane coupling was also carried out by Union Carbide. ... 

Catalytica Associates, Recent Advances in Alkane Activation (Client Private), by Catalytica Associates, Mountain View, CA, 1986. 

The Japanese company Maruzen Oil Co. [50] and Catalytica Associates Co. [51] use ferric sulfate as oxidant (cocatalyst) [52] (also compare [2]) Catalytica claims a commercial process in existing Wacker two-stage plants. 

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