WO2005075397A1 - Entwässerung von kreislaufströmen bei der herstellung von bisphenol a - Google Patents
Entwässerung von kreislaufströmen bei der herstellung von bisphenol a Download PDFInfo
- Publication number
- WO2005075397A1 WO2005075397A1 PCT/EP2005/000616 EP2005000616W WO2005075397A1 WO 2005075397 A1 WO2005075397 A1 WO 2005075397A1 EP 2005000616 W EP2005000616 W EP 2005000616W WO 2005075397 A1 WO2005075397 A1 WO 2005075397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- distillation
- acetone
- phenol
- bisphenol
- reaction
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 230000018044 dehydration Effects 0.000 title 1
- 238000006297 dehydration reaction Methods 0.000 title 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 75
- 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 claims abstract description 60
- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000004821 distillation Methods 0.000 claims abstract description 26
- 239000011541 reaction mixture Substances 0.000 claims abstract description 14
- 239000003377 acid catalyst Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 21
- 239000000047 product Substances 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- PBEHQFUSQJKBAS-UHFFFAOYSA-N 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol;phenol Chemical compound OC1=CC=CC=C1.C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 PBEHQFUSQJKBAS-UHFFFAOYSA-N 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000004417 polycarbonate Substances 0.000 claims description 9
- 229920000515 polycarbonate Polymers 0.000 claims description 9
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 6
- -1 sulfonic acid ion Chemical class 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000007859 condensation product Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 2
- 239000007857 degradation product Substances 0.000 claims description 2
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 8
- 239000012452 mother liquor Substances 0.000 description 8
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000005292 vacuum distillation Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 description 3
- 125000001827 mesitylenyl group Chemical group [H]C1=C(C(*)=C(C([H])=C1C([H])([H])[H])C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- OZXIZRZFGJZWBF-UHFFFAOYSA-N 1,3,5-trimethyl-2-(2,4,6-trimethylphenoxy)benzene Chemical compound CC1=CC(C)=CC(C)=C1OC1=C(C)C=C(C)C=C1C OZXIZRZFGJZWBF-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- SHOJXDKTYKFBRD-UHFFFAOYSA-N mesityl oxide Natural products CC(C)=CC(C)=O SHOJXDKTYKFBRD-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000005501 phase interface Effects 0.000 description 2
- 230000008707 rearrangement Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- IYSVFZBXZVPIFA-UHFFFAOYSA-N 1-ethenyl-4-(4-ethenylphenyl)benzene Chemical group C1=CC(C=C)=CC=C1C1=CC=C(C=C)C=C1 IYSVFZBXZVPIFA-UHFFFAOYSA-N 0.000 description 1
- YQDJQYVIHZYJSE-UHFFFAOYSA-N 1-phenyl-2,3-dihydroindene-1,2-diol Chemical class OC1CC2=CC=CC=C2C1(O)C1=CC=CC=C1 YQDJQYVIHZYJSE-UHFFFAOYSA-N 0.000 description 1
- MLCQXUZZAXKTSG-UHFFFAOYSA-N 2-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound C=1C=CC=C(O)C=1C(C)(C)C1=CC=C(O)C=C1 MLCQXUZZAXKTSG-UHFFFAOYSA-N 0.000 description 1
- JGDWYKQLFQQIDH-UHFFFAOYSA-N 2-phenyl-3,4-dihydrochromen-2-ol Chemical class C1CC2=CC=CC=C2OC1(O)C1=CC=CC=C1 JGDWYKQLFQQIDH-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000007848 Bronsted acid Substances 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001504 aryl thiols Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000035618 desquamation Effects 0.000 description 1
- LJSQFQKUNVCTIA-UHFFFAOYSA-N diethyl sulfide Chemical compound CCSCC LJSQFQKUNVCTIA-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical class O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 150000002468 indanes Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- XDTRNDKYILNOAP-UHFFFAOYSA-N phenol;propan-2-one Chemical compound CC(C)=O.OC1=CC=CC=C1 XDTRNDKYILNOAP-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 150000003732 xanthenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/685—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
- C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
- C07C39/15—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings, e.g. phenylphenol
- C07C39/16—Bis-(hydroxyphenyl) alkanes; Tris-(hydroxyphenyl)alkanes
Definitions
- the present application relates to a process for the preparation of bisphenol A, in which the reaction mixture obtained by acid-catalyzed conversion of phenol and acetone is freed from the water formed during the reaction by distillation, a large part of the unreacted acetone remaining in the reaction mixture.
- Bisphenols as condensation products of phenols and carbonyl compounds are starting materials or intermediates for the production of a large number of commercial products. Of particular technical importance is the condensation product from the reaction between phenol and acetone, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A, BPA). BPA serves as a raw material for. Production of various types of polymeric materials such as polyarylates, polyether imides, polysulfones and modified phenol-formaldehyde resins. Preferred areas of application are in the production of epoxy resins and polycarbonates.
- cocatalyst usually thiols that have at least one SH function.
- the cocatalyst can either be dissolved homogeneously in the reaction solution or, in the case of the acidic ion exchangers, can be fixed on the catalyst itself.
- Homogeneous cocatalysts are, for example, mercapto propionic acid, hydrogen sulfide, alkyl sulfides such as ethyl sulfide and similar compounds.
- Fixed cocatalysts are aminoalkylthiols and pyridylalkylthiols which are ionically bound to the catalyst, where the SH function can be protected and is only released to the catalyst during or after fixation.
- the cocatalyst can be covalently bound to the catalyst as alkyl or aryl thiol.
- reaction is usually carried out in such a way that 100% conversion of the acetone is not achieved and 0.1-0.6% by weight in the reactor outlet. Acetone are included.
- a processing and purification method of BPA is carried out by separating BPA from the reaction mixture in the form of an approximately equimolar crystalline. Adduct with phenol by cooling the reaction mixture with crystallization of the BPA-phenol adduct in a suspension crystallization. The BPA-phenol adduct crystals are then separated from the liquid phase by a suitable apparatus for solid-liquid separation, such as rotary filters or centrifuges, and sent for further purification.
- Adduct crystals obtained in this way typically have a purity of> 99% by weight of BPA, based on the sum of BPA and the secondary components, with a phenol content of approximately 40% by weight.
- suitable solutions which typically contain one or more components from the group consisting of acetone, water, phenol, BPA and secondary components, the adduct crystals can be freed from impurities adhering to the surface.
- the liquid stream (mother liquor) obtained in the solid-liquid separation contains phenol, BPA, water formed in the reaction, unreacted acetone and is enriched in the secondary components typically obtained in the production of BPA.
- This mother liquor stream is usually returned to the reaction unit.
- water previously formed is removed by distillation, wherein any acetone still present is also removed from the mother liquor.
- the dewatered reaction stream thus obtained is supplemented by phenol and acetone and returned to the reaction unit.
- water and acetone can also be removed by distillation before the suspension crystallization of the BPA-phenol adduct is carried out.
- the BPA-phenol adduct crystals obtained after the above-described suspension crystallization of the reaction solution and solid-liquid separation are passed on to further purification steps, with the separation of phenol and possibly a reduction in the concentration of secondary components being achieved.
- the BPA-phenol adduct crystals can thus be recrystallized from phenol, organic solvents, water or mixtures of the solvents mentioned, which may also contain BPA and / or its isomers, by means of a suspension crystallization.
- the phenol present in the adduct crystals can also be removed in whole or in part by the choice of suitable solvents. Any phenol remaining in the BPA after recrystallization is then completely separated off by suitable distillative, desorptive or extractive methods.
- the phenol can also be removed from the BPA-phenol adduct crystals by means of a melting process. In these processes, however, the BPA is subject to thermal loads, which leads to undesirable splitting of BPA.
- a bisphenol A melt is obtained which can be used without prior solidification for the production of polycarbonate by the transesterification process (melt polycarbonate).
- the bisphenol A melt can, however, also be solidified by known processes, such as, for example, by the prilling process or by desquamation, for sale or further use.
- the melt can be dissolved in sodium hydroxide solution and used in the polycarbonate process using the phase interface process.
- Ge sacrificeen- if the phenol-free bisphenol A can be subjected to a purification step such as melt crystallization, distillation and / or primary crystallization from phenol, water or an organic solvent such as toluene or mixtures of these substances before further processing.
- the mother liquor must be dewatered before it is returned to the reaction, since, due to the thermodynamic equilibrium, the water of reaction would strongly suppress the reaction of phenol and acetone to bisphenol A and thus reduce the reaction conversion.
- the unreacted residual acetone should remain in the reaction solution, since it would otherwise have to be laboriously isolated from side streams and returned to the reaction in order to keep raw material losses low for economic reasons
- the object of the present invention was therefore to provide a process for the preparation of bisphenol A. With which the water of reaction can be removed from the reaction solution or from the mother liquor which comes from the crystallization and filtration, the unreacted Most of the residual acetone remains in the reaction solution.
- the invention relates to a process for the preparation of bisphenol A, in which
- step b) before or after the distillation in step b), a bisphenol A-phenol adduct is separated off from the reaction mixture by crystallization and filtration.
- the invention is based on the knowledge that when the reaction mixture is worked up by distillation in a vacuum distillation for water removal, the water can be separated off almost quantitatively, ie to more than 95%. At the same time, however, more than 80% of the unconverted acetone introduced into the distillation preferably remains in the bottom product in this vacuum distillation.
- the bottom product also preferably contains between 0.01 and 0.2% by weight of water (based on the bottom product).
- the distillation column used with a bottom temperature of 100 to 150 ° C, preferably 110 to 140 ° C, particularly preferably 125 to 135 ° C and a top temperature of 20 to 80 ° C, preferably 30 to 70 ° C, particularly preferably 50 to 60 ° C operated.
- the vacuum in the top of the column is 50 to 300 mbar, preferably 80 to 200 mbar, particularly preferably 100 to 150 mbar.
- the bottom vacuum is from 100 to 300mbar 5 preferably from 120 to 250mbar and more preferably 150 to 200 mbar.
- Distillation devices which are known to the person skilled in the art and which contain internals, for example packing elements and / or packings and / or bottoms, can be used as the separation process for solving the problem.
- the bottom product obtained in the distillation is, if appropriate after separating off the bisphenol A-phenol adduct crystals by means of a suspension crystallization, for reuse in the reaction after addition of the used components phenol and acetone and optionally cocatalyst.
- the phenol used can be supplemented in whole or in part before the distillation.
- Another advantage of the process according to the invention is that degradation compounds of the sulfur-containing cocatalyst, such as mercaptopropionic acid and of the sulfonic acid ion exchanger, are likewise removed overhead with the water of reaction and thus when the bottom product is returned to the reaction, not in the reaction and, above all, in the later removal of the Disrupt bisphenol A.
- impurities from the raw materials used such as methanol, and by-products resulting from the production of bisphenol A, such as anisole from methanol and phenol, and the compounds resulting from the self-condensation of acetone, such as, for example, mesitylene, mesityl oxide and diacetone alcohol, can be at least partially, but preferably at least 5 . 0%, cut off overhead.
- mercaptopropionic acid is used as the cocatalyst, the cocatalyst remains in the bottom product. Only the decomposed portion and the portion lost due to the withdrawal from the circuit have to be added in order to run the reaction with a constant cocatalyst content. ' ⁇ ⁇
- the bisphenol A produced by the process according to the invention is preferably reacted with phosgene according to the interfacial process or with diaryl carbonates, preferably diphenyl carbonate, according to the melt process to polycarbonate.
- phosgene phosgene according to the interfacial process
- diaryl carbonates preferably diphenyl carbonate
- the vacuum is 163 mbar in the sump and 129 mbar in the head.
- Over 95% of the water of reaction introduced into the column is condensed at the top, the rest remaining in the bottom product.
- the top product contains 5% by weight of phenol and 5% by weight of acetone, based on the top product.
- anisole and methanol as well as acetone's own condensation products such as.
- the BPA originating from this process is suitable for the production of polycarbonate using both the phase interface and the transesterification (melt) process.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006551755A JP2007520503A (ja) | 2004-02-05 | 2005-01-22 | ビスフェノールaの製造における循環ストリームの脱水方法 |
EP05701121A EP1713753A1 (de) | 2004-02-05 | 2005-01-22 | Entwässerung von kreislaufströmen bei der herstellung von bisphenol a |
CN2005800035885A CN1914142B (zh) | 2004-02-05 | 2005-01-22 | 双酚a生产中循环流的脱水 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004005726A DE102004005726A1 (de) | 2004-02-05 | 2004-02-05 | Entwässerung von Kreislaufströmen bei der Herstellung von Bisphenol A |
DE102004005726.5 | 2004-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005075397A1 true WO2005075397A1 (de) | 2005-08-18 |
Family
ID=34801629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/000616 WO2005075397A1 (de) | 2004-02-05 | 2005-01-22 | Entwässerung von kreislaufströmen bei der herstellung von bisphenol a |
Country Status (9)
Country | Link |
---|---|
US (1) | US7078573B2 (de) |
EP (1) | EP1713753A1 (de) |
JP (1) | JP2007520503A (de) |
KR (1) | KR20060132895A (de) |
CN (1) | CN1914142B (de) |
DE (1) | DE102004005726A1 (de) |
RU (1) | RU2392261C2 (de) |
TW (1) | TW200604157A (de) |
WO (1) | WO2005075397A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021037777A1 (en) | 2019-08-27 | 2021-03-04 | Covestro Intellectual Property Gmbh & Co. Kg | Process for preparing bisphenole a (bpa) in the presence of hydroxyacetone |
WO2022179904A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of cumene |
WO2022179899A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of alpha-methylstyrene |
WO2022179902A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of acetophenone |
WO2022179901A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of at least two impurities |
WO2022179900A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of 2-methyl benzofuran |
WO2022179898A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of benzene |
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US9290618B2 (en) | 2011-08-05 | 2016-03-22 | Sabic Global Technologies B.V. | Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions |
US8962117B2 (en) | 2011-10-27 | 2015-02-24 | Sabic Global Technologies B.V. | Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate |
CN104205376B (zh) | 2012-02-03 | 2018-04-27 | 沙特基础全球技术有限公司 | 发光二极管器件及用于生产其的包括转换材料化学的方法 |
US9287471B2 (en) | 2012-02-29 | 2016-03-15 | Sabic Global Technologies B.V. | Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same |
WO2013130606A2 (en) | 2012-02-29 | 2013-09-06 | Sabic Innovative Plastics Ip B.V. | Polycarbonate made from low sulfur bisphenol a and containing converions material chemistry, and articles made therefrom |
US9346949B2 (en) | 2013-02-12 | 2016-05-24 | Sabic Global Technologies B.V. | High reflectance polycarbonate |
CN104918992B9 (zh) | 2012-10-25 | 2017-05-24 | 沙特基础全球技术有限公司 | 发光二极管装置、制造方法、其应用 |
WO2014186548A1 (en) | 2013-05-16 | 2014-11-20 | Sabic Innovative Plastics Ip B.V. | Branched polycarbonate compositions having conversion material chemistry and articles thereof |
EP3004233B1 (de) | 2013-05-29 | 2018-02-14 | SABIC Global Technologies B.V. | Farbstabile thermoplastische zusammensetzung |
WO2014191943A1 (en) | 2013-05-29 | 2014-12-04 | Sabic Innovative Plastics Ip B.V. | Illuminating devices with color stable thermoplastic light-transmitting articles |
DE102016116078B3 (de) | 2016-08-29 | 2018-01-04 | Epc Engineering Consulting Gmbh | Verfahren zur Herstellung eines Polycarbonats unter Einsatz einer Strippvorrichtung |
CN117597324A (zh) | 2021-07-05 | 2024-02-23 | Sabic环球技术有限责任公司 | 制造双酚a的方法 |
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2004
- 2004-02-05 DE DE102004005726A patent/DE102004005726A1/de not_active Withdrawn
-
2005
- 2005-01-22 EP EP05701121A patent/EP1713753A1/de not_active Withdrawn
- 2005-01-22 KR KR1020067015877A patent/KR20060132895A/ko not_active Ceased
- 2005-01-22 WO PCT/EP2005/000616 patent/WO2005075397A1/de active Application Filing
- 2005-01-22 JP JP2006551755A patent/JP2007520503A/ja active Pending
- 2005-01-22 RU RU2006131516/04A patent/RU2392261C2/ru not_active IP Right Cessation
- 2005-01-22 CN CN2005800035885A patent/CN1914142B/zh not_active Expired - Fee Related
- 2005-01-26 US US11/043,275 patent/US7078573B2/en not_active Expired - Fee Related
- 2005-02-03 TW TW094103288A patent/TW200604157A/zh unknown
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EP0332877A1 (de) * | 1988-02-19 | 1989-09-20 | MITSUI TOATSU CHEMICALS, Inc. | Verfahren zur Herstellung von Bisphenol A |
EP0330832A2 (de) * | 1988-02-29 | 1989-09-06 | General Electric Company | Oligomer-Carbonat-Kettenstopper und Verfahren zu ihrer Herstellung und zu ihrer Anwendung |
EP0720976A1 (de) * | 1994-12-09 | 1996-07-10 | The Dow Chemical Company | Verfahren zur Herstellung eines Addukts aus einem Bisphenol mit einer Phenol-Verbindung |
DE19981913T1 (de) * | 1998-10-22 | 2001-01-18 | Idemitsu Petrochemical Co | Verfahren zur Herstellung von Bisphenol A |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021037777A1 (en) | 2019-08-27 | 2021-03-04 | Covestro Intellectual Property Gmbh & Co. Kg | Process for preparing bisphenole a (bpa) in the presence of hydroxyacetone |
WO2022179904A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of cumene |
WO2022179899A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of alpha-methylstyrene |
WO2022179902A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of acetophenone |
WO2022179901A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of at least two impurities |
WO2022179900A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of 2-methyl benzofuran |
WO2022179898A1 (en) | 2021-02-23 | 2022-09-01 | Covestro Deutschland Ag | Process for preparing bisphenol a (bpa) in the presence of benzene |
Also Published As
Publication number | Publication date |
---|---|
DE102004005726A1 (de) | 2005-08-25 |
TW200604157A (en) | 2006-02-01 |
KR20060132895A (ko) | 2006-12-22 |
US7078573B2 (en) | 2006-07-18 |
RU2392261C2 (ru) | 2010-06-20 |
EP1713753A1 (de) | 2006-10-25 |
CN1914142A (zh) | 2007-02-14 |
CN1914142B (zh) | 2010-05-26 |
US20050177007A1 (en) | 2005-08-11 |
RU2006131516A (ru) | 2008-03-10 |
JP2007520503A (ja) | 2007-07-26 |
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