Council of Scientific and Industrial Research

General Electric Company

Arumugamangalam Venkataraman Ramaswamy

Alive Keshavaraja

Anand Pal Singh

James Lawrence Spivack

Gurram Kishan

Adil Minoo Dhalla

Subhash Prataprao Chavan

Jonathan Lloyd Male

Pradeep Kumar

Rajappan Vetrivel

Nileshkumar Prakash Kukalyekar

Thottappillil Ravindranathan

Sooryakant Ganesh Hegde

Mandan Chidambaram

James Violet Samuel

Chithravel Venkatesan

Vishnumurthy Ramachandra Hegde

Puduklatan Kadar Zubaidha

Shubhada Wasudeo Dantale

Disclosed herein are zeolite compositions comprising structural units of the formulae: wherein 'B' and 'C' are spacer groups comprising Cto Chydrocarbyl groups; and Rand Rindependently of each other comprise alkali metal, hydrogen, or Cto Calkyl groups. The zeolite compositions further comprise structural units derived from a heteropolyacid compound of the formula: (M)(M)(M)O; where Mcomprises hydrogen or an alkali metal; Mcomprises phosphorus or silicon, and Mcomprises tungsten or molybdenum. Methods for preparing these zeolite compositions are also disclosed. The zeolite compositions are useful as catalysts for producing bisphenols.

Functionalized zeolite compositions and methods for their preparation and use

Process for the preparation of phenyl ketones

A process for the transesterification of keto esters and alcohols in approximately stoichiometric amounts using a solid acid catalyst. Solid acid catalysts may be sulfated zirconia, sulfated tin oxide, sulfated titania, sulfated iron oxide, heteropoly acids, acidic clays, acidic zeolites, or any other solid acids with high acidity or super acidity, with or without dopants. One equivalent or more of keto ester, one equivalent or more of alcohol, the solid acid catalyst, and an appropriate solvent are mixed and heated to 70 to 120&deg; C. at atmospheric or reduced pressure to furnish the keto transester in high yields.

Process for the transesterification of keto esters using solid acids as catalysts

A process for the preparation of organic compounds through C--C bond forming reaction which comprises reacting a diene with a dienophile in the presence of solid acid based on either yttrium, scandium or lanthanum supported on metal oxide supports such as oxides of zirconium or tin or titanium or iron oxide modified by sulphation as catalysts for a period ranging from 5 to 48 hours and recovering the reaction products from the reaction mixture by filtration and removal of the solvent by evaporation followed by column chromatography.

Process for the C-C bond forming reaction using solid acid catalysts

A process for the production of methyl ethyl ketone by means of oxidative dehydrogenation of secondary butyl alcohol using an amorphous copper-silica catalyst prepared by a sol-gel route, in which an alkoxide or other suitable salt or complex of copper is reacted with an alkoxide of silicon in the absence of base, but in the presence of water or an alcohol; the resultant product is dried and calcined.

Process for the preparation of methyl ethyl ketone from secondary butyl

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Pune, India

Arumugamangalam Venkataraman Ramaswamy