Council of Scientific and Industrial Research

Celanese International Corporation

Oil and Natural Gas Corporation Ltd.

Sanjay Pandurang Kamble

Prashant Purushottam Barve

Melchior A Meilchen

Ravindra William Shinde

Milind Yashwant Gupte

Ilias S Kotsianis

Barbara F M Kimmich

Bhaskar Datttraya Kulkarni

Hang Wang

Gopal Moreshwar Chaphekar

Satish N Shintre

The present invention relates to novel crude oil demulsifier comprises a copolymer of styrene with pyridine or a carboxylic acid or its salt selected from methacrylic, acrylic, maleic or fumaric acid with molecular weight in the range of 10000 to 600000 Daltons, dose in the range of 20-1000 ppm. The invention further relates to a process for demulsification of crude oil by treating crude oil with the copolymer in the range of 20-1000 ppm in the temperature range of 25-40&#xb0; C. by shaking to obtain demulsified crude oil having crude oil with &#x3c;1% water, and Water &#x3c;100 ppm oil.

Demulsifiers for separation of water from oil and preparation thereof

The present invention discloses a novel eco-friendly, cost effective, autocatalytic process for the synthesis of tributyl citrate (TBC) with high yields and purity.

Auto-catalyzed process for the synthesis of tributyl citrate (TBC)

Provided is a visible active photocatalyst of formula BiOX wherein X=P or S and process of preparation and use thereof. Use of the catalyst is demonstrated in the photocatalytic degradation of pharmaceutical drug pollutants and pollutant dyes using solar radiation or artificial radiation.

Photocatalytic degradation of pharmaceutical drugs and dyes using visible active biox photocatalyst

A continuous process is provided for selective formation of a vinyl ester by reactive distillation from a corresponding carboxylic acid. Carboxylic acid, vinyl acetate, and a palladium acetate&#x2014;bidentate ligand catalyst complex are provided and reacted in a typical embodiment. Acetic acid and vinyl acetate are continuously removed from the reaction mixture and vinyl acetate is recycled to the reaction mixture. The vinyl ester product is separated from the vinyl acetate, residual carboxylic acid, residual acetic acid, and catalyst.

Process for the continuous transvinylation of carboxylic acids with vinyl acetate

A semi-continuous process is provided for selective formation of a vinyl ester by reactive distillation from a corresponding carboxylic acid. Carboxylic acid, vinyl acetate, and a palladium acetate&#x2014;bidentate ligand catalyst complex are provided and reacted in a typical embodiment. Acetic acid and vinyl acetate are continuously removed from the reaction mixture and vinyl acetate is recycled to the reaction mixture. The vinyl ester product is separated from the vinyl acetate, residual carboxylic acid, residual acetic acid, and catalyst.

Growing community of inventors

Pune, India

Sanjay Pandurang Kamble