Council of Scientific and Industrial Research

Sooryakant Ganesh Hegde

Pradeep Kumar

Arumugamangalam Venkataraman Ramaswamy

Thottappillil Ravindranathan

Alive Keshavaraja

Narayanan Venkatathri

Vishnumurthy Ramachandra Hegde

The present invention relates to an improved process for the preparation of porous crystalline silicoaluminophosphate molecular sieves designated as SAPO-35. These molecular sieves are useful as catalysts in the transformation of hydrocarbons especially in the methanol to olefin reaction.

Process for the preparation of porous crystalline silicoaluminophosphate molecular sieves

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

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Maharashtra, India

Sooryakant Ganesh Hegde