JPS5646831A - Preparation of bisphenol a - Google Patents
Preparation of bisphenol aInfo
- Publication number
- JPS5646831A JPS5646831A JP12465679A JP12465679A JPS5646831A JP S5646831 A JPS5646831 A JP S5646831A JP 12465679 A JP12465679 A JP 12465679A JP 12465679 A JP12465679 A JP 12465679A JP S5646831 A JPS5646831 A JP S5646831A
- Authority
- JP
- Japan
- Prior art keywords
- cysteine
- cation exchange
- water
- exchange resin
- reaction system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 6
- 238000006243 chemical reaction Methods 0.000 abstract 5
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 abstract 4
- 235000018417 cysteine Nutrition 0.000 abstract 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 abstract 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 3
- 239000003729 cation exchange resin Substances 0.000 abstract 3
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000002994 raw material Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000012442 inert solvent Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920000515 polycarbonate Polymers 0.000 abstract 1
- 239000004417 polycarbonate Substances 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 125000000542 sulfonic acid group Chemical group 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as a raw material of a polycarbonate esin, etc., in high conversion and yield, by reacting phenol and acetone using cysteine and a water-insoluble solfonic acid-type cation exchange resin as catalysts.
CONSTITUTION: Bisphenol A is prepared by condensing phenol and acetone in an inert solvent or in the absence of solvent, in the presence of a catalyst comprising a modified resin obtained by modifying pref. a cation exchange resin with cysteine, under a pressure of 1W5kg/cm2G at 50W100°C for 0.1W20hr. Since the presence of water in the reaction system gives undesirable effects to the reaction, the concentration of water in the reaction system is preferably maintained below 0.1wt%. The degree of modification of the cation exchange resin with cysteine is 5W20mol% based on the sulfonic acid group. If cysteine is added to the reaction system separately, its amount is 0.01W0.5wt% based on the sum of the phenol and acetone used as raw materials.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12465679A JPS5646831A (en) | 1979-09-27 | 1979-09-27 | Preparation of bisphenol a |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12465679A JPS5646831A (en) | 1979-09-27 | 1979-09-27 | Preparation of bisphenol a |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5646831A true JPS5646831A (en) | 1981-04-28 |
Family
ID=14890794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12465679A Pending JPS5646831A (en) | 1979-09-27 | 1979-09-27 | Preparation of bisphenol a |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5646831A (en) |
-
1979
- 1979-09-27 JP JP12465679A patent/JPS5646831A/en active Pending
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