Patents

US7128815: Process for recovery of pure acrylonitrile

Process for recovery of highly pure acrylonitrile by quickly vaporizing under vacuum the contaminated acrylonitrile as well as fresh acrylonitrile followed by contacting with hydrophilic agents in an extractive distillation column using plural number of packed sections.

Filing Date: 25-03-2003

Issue Date: 31-10-2006

Applicant: CSIR-National Chemical Laboratory (CSIR-NCL), Pune

Patent No: US7128815

Application No: 10/395886

Inventor(s): Berve Prashant Purushottam; Ghike Shrikant Madhukar; Shinde Ravindra William; Gupte Milind Yashwant; Joshi Chandrashekhar Narayan

IPC Classification: B01D 3/40, C07C 255/08

Country: United States of America

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