Invention Grant
US3584039A Fiber-grade terephthalic acid by catalytic hydrogen treatment of dissolved impure terephthalic acid
失效
通过催化氢处理纤维级别的过敏酸溶解的去饱和过氧化酸
- Patent Title: Fiber-grade terephthalic acid by catalytic hydrogen treatment of dissolved impure terephthalic acid
- Patent Title (中): 通过催化氢处理纤维级别的过敏酸溶解的去饱和过氧化酸
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Application No.: US3584039DApplication Date: 1967-08-30
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Publication No.: US3584039APublication Date: 1971-06-08
- Inventor: MEYER DELBERT H
- Applicant: STANDARD OIL CO
- Assignee: Standard Oil Co
- Current Assignee: Standard Oil Co
- Priority: US66445667 1967-08-30
- Main IPC: C07C51/487
- IPC: C07C51/487 ; C07C51/42
Abstract:
FIBER-GRADE TEREPHTHALIC ACID CAN BE OBTAINED BY CATALYTIC HYDROGEN TREATMENT OF SOLUTIONS OF IMPURE TEREPHTHALIC ACID. THE TREATED SOLUTION IS SEPARATED FROM THE CATALYST AND FIBER-GRADE TEREPHTHALIC ACID IS RECOVERED BY CRYSTALLIZATION AND SEPARATION FROM IMPURITIES RETAINED IN THE AQUEOUS MOTHER LIQUOR.
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