Catalysts for catalytic pyrolysis of phenol distillation residue and process for recovering useful substances by pyrolysis the same
CA 1303590 C · Owner: Mitsui Petrochemical Industries, Ltd. · Inventors: Shoji, Kichiro; Shirahata, Tatsuo; Imamura, Tetsuo
Overview
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Open the CIPO recordAbstract From the Canadian patent
The catalysts for use in pyrolytic decomposition of the phenol distillation residue in accordance with the present invention are used in pyrolytically decomposing a distillation residue resulting from the separation by distillation of cumene, phenol and acetone from a reaction mixture obtained by oxidizing cumene with molecular oxygen followed by acid cleavage, and the present catalysts are characterized by comprising oxygen containing metallic compounds having a particle diameter of 0,002-100 µm. Furthermore the processes for recovering useful, substances from a phenol distillation residue containing the same in accordance with the present invention are characterized by allowing said …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.