Hindustan Petroleum Corporation Limited

Siva Kesava Raju Chintalapati

Naresh Kottari

Kanuparthy Naga Raja

Bhavesh Sharma

Ramkumar Mangala

Satyanarayana Murty Pudi

Nettem Venkateswarlu Choudary

Sriganesh Gandham

Peddy Venkata Chalapathi Rao

Peddy Venkat Chalapathi Rao

Gandham Sriganesh

Valavarasu Gnanasekaran

Srinivasa Rao Ganagalla

Ravi Balasubramaniam

Nettam Venkateswarlu Choudary

The present disclosure discloses a crosslinked polymer for dewaxing the lubricating oils, the polymer derived from (a) 70-77 weight percentage of at least one alkyl acrylate; (b) 23-28 weight percentage of at least one vinyl aromatic hydrocarbon; (c) 0.1-2.5 weight percentage of at least one crosslinker; and (d) 0.75-2.5 weight percentage of at least one initiator and wherein the polymer has a number average molecular weight in the range of 5000-15000. The present disclosure discloses a convenient process for preparing the crosslinked polymer. The present disclosure further reveals a method for dewaxing the lubricating oil.

Crosslinked polymer for dewaxing—preparation and implementations thereof

The instant disclosure provides a process for synthesis of compound of Formula:X-M-Y,wherein Mis a transition metal ion and X and Y are carboxylate anions. The catalysts are hydrocarbon soluble and the process for their preparation, as disclosed herein, constitutes an elegant method for the preparation of such catalysts.

Process for the preparation of hydrocarbon soluble organometallic catalysts

A catalyst is provided having: (a) at least one multimetallic salt; and (b) at least one organic acid, wherein the at least one multimetallic salt to the at least one organic acid weight ratio is in the range of 1:0.01-1:0.5. A process is also provided for the preparation of the catalyst and for the preparation of the multimetallic salt.

Catalyst for heavy oil upgradation

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Bengaluru, India

Siva Kesava Raju Chintalapati