- Patent Title: Dealklylation and transalkylation of mixed phenols to make cresols
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Application No.: US17258337Application Date: 2019-02-04
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Publication No.: US11485694B2Publication Date: 2022-11-01
- Inventor: Shuguang Zhang , Lubo Zhou
- Applicant: China Petroleum & Chemical Corporatoin , UOP LLC
- Applicant Address: CN Beijing; US IL Des Plaines
- Assignee: China Petroleum & Chemical Corporatoin,UOP LLC
- Current Assignee: China Petroleum & Chemical Corporatoin,UOP LLC
- Current Assignee Address: CN Beijing; US IL Des Plaines
- International Application: PCT/US2019/016533 WO 20190204
- International Announcement: WO2020/162876 WO 20200813
- Main IPC: C07C37/48
- IPC: C07C37/48 ; C07C37/50 ; C07C37/00

Abstract:
Processes of producing cresols from a phenols containing feed are described. The processes involve a combination of dealkylation and transalkylation processes. The dealkylation process converts the heavy alkylphenols in an alkylphenols stream to phenol and olefins. The olefins produced in the dealkylation process are separated out. The methylphenols, which are not converted in the dealkylation process, and phenol react in the transalkylation process to generate cresols.
Public/Granted literature
- US20210139399A1 DEALKLYLATION AND TRANSALKYLATION OF MIXED PHENOLS TO MAKE CRESOLS Public/Granted day:2021-05-13
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