Invention Grant
- Patent Title: Purification of cumene recycle streams
- Patent Title (中): 异丙苯循环物流的净化
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Application No.: US580035Application Date: 1990-09-10
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Publication No.: US5025112APublication Date: 1991-06-18
- Inventor: John R. Sanderson , Edward T. Marquis , John F. Knifton
- Applicant: John R. Sanderson , Edward T. Marquis , John F. Knifton
- Applicant Address: NY White Plains
- Assignee: Texaco Chemical Company
- Current Assignee: Texaco Chemical Company
- Current Assignee Address: NY White Plains
- Main IPC: B01J21/16
- IPC: B01J21/16 ; B01J27/182 ; C07B61/00 ; C07C7/148 ; C07C15/085
Abstract:
A method for purifying a cumene recycle stream by removing 2-phenyl-2-propanol and cumene hydroperoxide before the cumene is distilled and recycled to the peroxidation reactor which comprises reacting the recycle cumene in the presence of an acid treated montmorillonite clay of the formula:M.sub.x/n.sup.n+.sub..y H.sub.2 O(Al.sub.4-x Mg.sub.x) (Si.sub.8)O.sub.20 (OH).sub.4or in the presence of a catalyst comprising phosphoric acid on silica.
Public/Granted literature
- US5729724A Adaptive 128-bit floating point load and store operations for quadruple precision compatibility Public/Granted day:1998-03-17
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