Patents

US8772552: Process for the selective hydroxylation of benzene with molecular oxygen

The invention provides an improved process for the selective hydroxylation of benzene. The process provides a direct single step selective vapor phase hydroxylation of benzene to phenol using molecular oxygen (air) over Cu--Cr oxide catalysts. The process provides benzene conversion of 10 to 45% and selectivity for phenol up to 100%.

Filing Date: 20-09-2012

Issue Date: 08-07-2014

Applicant: CSIR-Indian Institute of Petroleum (CSIR-IIP), Dehradun

Patent No: US8772552

Application No: 13/623653

Inventor(s): Bal, Rajaram (Dehradun, In); Shankha, Shubhra Acharyya (Dehradun, In); Ghosh, Shilpi (Dehradun, In); Sarkar, Bipul (Dehradun, In); Rawat, Karan Singh (Dehradun, In); Pendem, Chandrashekar (Dehradun, In)

IPC Classification: C07C 37/58, B01J 23/00

Country: United States of America

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