JP4112593B2 - テトラブロモビスフェノール−aの製造方法 - Google Patents
テトラブロモビスフェノール−aの製造方法 Download PDFInfo
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- JP4112593B2 JP4112593B2 JP2006169801A JP2006169801A JP4112593B2 JP 4112593 B2 JP4112593 B2 JP 4112593B2 JP 2006169801 A JP2006169801 A JP 2006169801A JP 2006169801 A JP2006169801 A JP 2006169801A JP 4112593 B2 JP4112593 B2 JP 4112593B2
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- tetrabromobisphenol
- water
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- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 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 119
- 238000000034 method Methods 0.000 claims abstract description 116
- 229940106691 bisphenol a Drugs 0.000 claims abstract description 53
- 239000000047 product Substances 0.000 claims description 36
- 239000002244 precipitate Substances 0.000 claims description 30
- MFXDXKKESRYMQV-UHFFFAOYSA-N 2,3,5-tribromo-4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound BrC=1C=C(O)C(Br)=C(Br)C=1C(C)(C)C1=CC=C(O)C=C1 MFXDXKKESRYMQV-UHFFFAOYSA-N 0.000 claims description 26
- 238000005893 bromination reaction Methods 0.000 claims description 24
- 230000031709 bromination Effects 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 abstract description 215
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 117
- 239000002904 solvent Substances 0.000 abstract description 53
- 239000012429 reaction media Substances 0.000 abstract 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 120
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 118
- 239000000243 solution Substances 0.000 description 84
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 54
- 239000012452 mother liquor Substances 0.000 description 29
- 229940102396 methyl bromide Drugs 0.000 description 27
- 239000007800 oxidant agent Substances 0.000 description 26
- 239000007788 liquid Substances 0.000 description 25
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 21
- 239000000460 chlorine Substances 0.000 description 20
- 239000007791 liquid phase Substances 0.000 description 20
- 239000007787 solid Substances 0.000 description 19
- 229910052794 bromium Inorganic materials 0.000 description 18
- 230000001590 oxidative effect Effects 0.000 description 18
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 17
- 241000894007 species Species 0.000 description 17
- 238000007792 addition Methods 0.000 description 16
- 230000003647 oxidation Effects 0.000 description 16
- 238000007254 oxidation reaction Methods 0.000 description 16
- 238000001556 precipitation Methods 0.000 description 14
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 13
- 238000004817 gas chromatography Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 239000011541 reaction mixture Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 229930185605 Bisphenol Natural products 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- BSWWXRFVMJHFBN-UHFFFAOYSA-N 2,4,6-tribromophenol Chemical compound OC1=C(Br)C=C(Br)C=C1Br BSWWXRFVMJHFBN-UHFFFAOYSA-N 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 150000001649 bromium compounds Chemical class 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 4
- -1 H 2 O 2 Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 4
- APAODYYKOZMIFU-UHFFFAOYSA-N 2,3,5-tribromo-6-chloro-4-[2-(4-hydroxyphenyl)propan-2-yl]phenol Chemical compound BrC=1C(Cl)=C(O)C(Br)=C(Br)C=1C(C)(C)C1=CC=C(O)C=C1 APAODYYKOZMIFU-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- 238000010923 batch production Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000002316 fumigant Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 241001550224 Apha Species 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000011437 continuous method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002572 peristaltic effect Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- UKCBHAFAZYTMPR-UHFFFAOYSA-N 2,6-dibromo-4-(1,1,3-tribromo-2-methoxypropan-2-yl)phenol Chemical compound COC(CBr)(C(Br)Br)C1=CC(Br)=C(O)C(Br)=C1 UKCBHAFAZYTMPR-UHFFFAOYSA-N 0.000 description 1
- DRHRJMMRLGFAPU-UHFFFAOYSA-N 2,6-dibromo-4-(1,1-dibromo-2-methoxypropan-2-yl)phenol Chemical compound COC(C)(C(Br)Br)C1=CC(Br)=C(O)C(Br)=C1 DRHRJMMRLGFAPU-UHFFFAOYSA-N 0.000 description 1
- XZWDNOCYDKEERU-UHFFFAOYSA-N 2,6-dibromo-4-(1,3-dibromo-2-methoxypropan-2-yl)phenol Chemical compound COC(CBr)(CBr)C1=CC(Br)=C(O)C(Br)=C1 XZWDNOCYDKEERU-UHFFFAOYSA-N 0.000 description 1
- PGYLXJQNRUHELX-UHFFFAOYSA-N 2,6-dibromo-4-(1-bromo-2-methoxypropan-2-yl)phenol Chemical compound COC(C)(CBr)C1=CC(Br)=C(O)C(Br)=C1 PGYLXJQNRUHELX-UHFFFAOYSA-N 0.000 description 1
- CKNCVRMXCLUOJI-UHFFFAOYSA-N 3,3'-dibromobisphenol A Chemical compound C=1C=C(O)C(Br)=CC=1C(C)(C)C1=CC=C(O)C(Br)=C1 CKNCVRMXCLUOJI-UHFFFAOYSA-N 0.000 description 1
- VENULINRALIKKV-UHFFFAOYSA-N 3-monobromobisphenol A Chemical compound C=1C=C(O)C(Br)=CC=1C(C)(C)C1=CC=C(O)C=C1 VENULINRALIKKV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012527 feed solution Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 150000002429 hydrazines Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000012453 solvate Substances 0.000 description 1
- 238000007614 solvation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
- C07C37/62—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
ル−Aの沈澱が起こるまで冷却する。しかしながら、この種類の方法は万能ではない、と言うのは、ハロゲン化有機溶媒の取り扱い、精製および再利用に費用がかかるからである。加うるに、テトラブロモビスフェノール−Aの回収で溶液を冷却する時に追加的費用と工程時間を要する。
a. ビスフェノール−Aと水と水混和性溶媒が入っている溶液を反応槽に供給することで水を液相中の水と水混和性溶媒の量を基準にして15重量%以上から65重量%含有する液相を有する反応マスを少なくともある程度生じさせ、
b. (a)中、該反応マスに未反応のBr2を存在させることにより、テトラブロモビスフェノール−Aの沈澱物を生じさせ、そして
c. 反応マスの温度を30から100℃の範囲内にする、
ことで行うことができる。
a. ビスフェノール−Aと水と水混和性溶媒が入っている溶液とBr2を反応槽に一緒に供給することで、水を液相中の水と水混和性溶媒の量を基準にして15重量%以上から65重量%含有する液相を有する反応マスを少なくともある程度生じさせ、
b. (a)中、該液相に未反応のBr2を少なくとも50ppm含有させ、そして
c. 反応マスの温度を30から100℃の範囲内にする、
ことで行うことができる。
H2SO4を用いた処理などでそれを処理してもよく、このような技術は本分野の技術者によく知られている。
もたらされるほどの度合でないならば、未反応Br2の含有量がゼロであってもよい短い期間を包含する。
の供給を行う。最も好適には、Br2の供給を開始した後にH2O2の供給を開始する。
スフェノール−Aが反応マスの液相中で示す溶解度と反応速度の両方が有利になり、従って高純度生成物の入手性が助長される。また、液相の水含有量を低くすることでも、液相中のBr2濃度が高くなるか或はトリブロモビスフェノール−Aの濃度が高くなることからトリブロモビスフェノール−Aの臭素化速度が速くなり得るが、それらは両方ともそれら自身に問題がある。Br2の濃度を高くすると望ましくない副生成物の生成が促される可能性がある一方、液相の水含有量を低くすると反応マスに含まれるHBr含有量が高くなることでテトラブロモビスフェノール−Aの収率が低くなるであろう。
応槽に戻すことも本発明の方法の範囲内である。
[実施例I]
lの水が入っている溶液を調製した。蒸発装置(これは250Mlのフラスコから成っていて、これに窒素導入口と気体出口を取り付けて、上記気体出口を反応槽内の0.3175cm(1/8インチ)ディップチューブに連結し、そしてこのフラスコを加熱する)にBr2を143グラム(46ml)入れた。反応前に仕込んだ母液とテトラブロモビスフェノール−Aを55℃の温度に持って行った。上記蒸発装置の中を窒素でパージ洗浄(200から500Ml/分)しそして液状の臭素を加熱することにより、Br2の供給を開始した。反応前に仕込んだ仕込み物の色が黄色になった時点で直ちにぜん動ポンプを用いて上記溶液の供給を開始した。ポンプ輸送速度を変えることにより、Br2の供給がビスフェノール−Aの供給よりも化学量論的に先行することを保持し、その結果として、反応マスの色は黄色であった。これらの供給を1時間15分継続した時点でBr2の供給を終了した。上記溶液の供給を反応マスび液相の色が無色になるまで継続した。滴下漏斗にH2O2水溶液(30重量%)を100グラム仕込んで、これの滴下を、上記ビスフェノール−A溶液の供給を継続しながら開始した。上記水溶液の供給と上記溶液の供給を定期的に調整して、反応マスに含まれる液状部分の色を黄色に維持した。上記H2O2水溶液を供給している間、反応マスの温度を60−63℃に維持した。このH2O2を全部加えた後の反応マスの色は黄色であった。上記ビスフェノール−A溶液の添加を継続すると反応マスの色は明黄色に変わるが、この溶液の供給を止めると、より深い黄色に変わるであろう。この期間中の反応温度を58−62℃にした。最後に、過酸化水素水溶液の供給を止めて20分後、上記ビスフェノール−A溶液を、反応マスが無色になるまで加えた。この反応マスの温度を60−65℃の温度に30分間保持した後、55℃に冷却した。この反応マスに含まれる沈澱物を濾過で母液から分離した後、水中20重量%のメタノール溶液を125ml用いて洗浄を行った。脱イオン水を用いて2番目の洗浄を実施した。この洗浄した沈澱物を乾燥させて分析を行った。GC分析により、トリブロモビスフェノール−Aが0.64%でテトラブロモビスフェノール−Aが99.3%であることが示された。上記母液にHBrが3.7重量%入っていることを確認した。
[実施例II]
[実施例III]
[実施例IV]
[実施例V]
[実施例VI]
[実施例VII]
[実施例VIII]
方法は、中間体であるトリブロモビスフェノール−Aが有意な量で沈澱するに充分な機会をそれに与えないような速度でテトラブロモビスフェノール−A沈澱物が直接生じる反応系を与えることで、高純度のテトラブロモビスフェノール−A生成物が高い収率で得られる。
Claims (5)
- 高純度のテトラブロモビスフェノール−A生成物を高収率で製造する方法であって、中間体であるトリブロモビスフェノール−Aが有意な量で沈殿するに充分な機会をそれに与えないような速い速度でテトラブロモビスフェノール−A沈殿物がビスフェノール−Aの臭素化で直接生じる反応系を与え、ここで、この過程で生じる全沈殿物がテトラブロモビスフェノール−Aを少なくとも96重量%含有することを含む方法。
- 請求項1記載の過程で生ずる全沈殿物がテトラブロモビスフェノール−Aを少なくとも97.5重量%含有する請求項1記載の方法。
- 請求項1記載の過程で生ずる全沈殿物がテトラブロモビスフェノール−Aを少なくとも98重量%含有する請求項1記載の方法。
- 請求項1記載の過程で生ずる全沈殿物がテトラブロモビスフェノール−Aを少なくとも98.5重量%含有する請求項1記載の方法。
- 請求項1記載の過程で生ずる全沈殿物がテトラブロモビスフェノール−Aを少なくとも99重量%含有する請求項1記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39883795A | 1995-03-06 | 1995-03-06 | |
| US42699895A | 1995-04-24 | 1995-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52690296A Division JP4112000B2 (ja) | 1995-03-06 | 1996-02-21 | テトラブロモビスフェノール−aの製造方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008038399A Division JP4917059B2 (ja) | 1995-03-06 | 2008-02-20 | テトラブロモビスフェノール−aの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006298932A JP2006298932A (ja) | 2006-11-02 |
| JP4112593B2 true JP4112593B2 (ja) | 2008-07-02 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52690296A Expired - Lifetime JP4112000B2 (ja) | 1995-03-06 | 1996-02-21 | テトラブロモビスフェノール−aの製造方法 |
| JP2006169801A Expired - Lifetime JP4112593B2 (ja) | 1995-03-06 | 2006-06-20 | テトラブロモビスフェノール−aの製造方法 |
| JP2008038399A Expired - Lifetime JP4917059B2 (ja) | 1995-03-06 | 2008-02-20 | テトラブロモビスフェノール−aの製造方法 |
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| JP52690296A Expired - Lifetime JP4112000B2 (ja) | 1995-03-06 | 1996-02-21 | テトラブロモビスフェノール−aの製造方法 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008038399A Expired - Lifetime JP4917059B2 (ja) | 1995-03-06 | 2008-02-20 | テトラブロモビスフェノール−aの製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5847232A (ja) |
| EP (1) | EP0813513B1 (ja) |
| JP (3) | JP4112000B2 (ja) |
| AT (1) | ATE207861T1 (ja) |
| CA (1) | CA2211193C (ja) |
| DE (1) | DE69616525T2 (ja) |
| WO (1) | WO1996027576A1 (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5446212A (en) * | 1994-09-08 | 1995-08-29 | Great Lakes Chemical Corp. | Reduced methyl bromide process for making tetrabromobisphenol-A |
| US6084136A (en) * | 1995-03-06 | 2000-07-04 | Albmarle Corporation | Process for the preparation of tetrabromobisphenol-A |
| US6218584B1 (en) | 1995-03-06 | 2001-04-17 | Albemarle Corporation | Process for the preparation of tetrabromobisphenol-A |
| US6084137A (en) * | 1995-03-06 | 2000-07-04 | Albemarle Corporation | Process for the preparation of tetrabromobisphenol-A |
| US6002050A (en) * | 1995-03-06 | 1999-12-14 | Albemarle Corporation | Process for the preparation of tetrabromobisphenol-A |
| US6235946B1 (en) | 1995-03-06 | 2001-05-22 | Albemarle Corporation | Process for the preparation of tetrabromobisphenol-A |
| US5986149A (en) * | 1997-04-03 | 1999-11-16 | Great Lakes Chemical Corporation | Method for recovering alkanols from aqueous HBr-solutions |
| US6147264A (en) * | 1999-04-08 | 2000-11-14 | Albemarle Corporation | Process for producing tetrabromobisphenol-A |
| DE60235833D1 (de) | 2001-12-21 | 2010-05-12 | Chemtura Corp | Verfahren und vorrichtung zur herstellung von decabromdiphenylalkanen |
| US6964728B2 (en) * | 2002-05-16 | 2005-11-15 | Mckinnie Bonnie G | Separation process |
| IL169592A (en) * | 2005-07-07 | 2013-11-28 | Bromine Compounds Ltd | Process for making tetrabromobisphenol a |
| US20070254991A1 (en) * | 2006-04-28 | 2007-11-01 | Saadat Hussain | Phosphorus-containing tetrabromobisphenol A |
| TWI415827B (zh) * | 2006-12-21 | 2013-11-21 | Du Pont | 製備2-胺基-5-氰基苯甲酸衍生物之方法 |
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| DE2227439B2 (de) * | 1972-06-06 | 1977-05-05 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorierung oder bromierung phenolischer verbindungen |
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-
1996
- 1996-02-21 DE DE69616525T patent/DE69616525T2/de not_active Expired - Lifetime
- 1996-02-21 CA CA002211193A patent/CA2211193C/en not_active Expired - Lifetime
- 1996-02-21 AT AT96909515T patent/ATE207861T1/de not_active IP Right Cessation
- 1996-02-21 EP EP96909515A patent/EP0813513B1/en not_active Expired - Lifetime
- 1996-02-21 WO PCT/US1996/002519 patent/WO1996027576A1/en not_active Ceased
- 1996-02-21 JP JP52690296A patent/JP4112000B2/ja not_active Expired - Lifetime
-
1997
- 1997-06-27 US US08/884,420 patent/US5847232A/en not_active Expired - Lifetime
-
2006
- 2006-06-20 JP JP2006169801A patent/JP4112593B2/ja not_active Expired - Lifetime
-
2008
- 2008-02-20 JP JP2008038399A patent/JP4917059B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1996027576A1 (en) | 1996-09-12 |
| JP4917059B2 (ja) | 2012-04-18 |
| ATE207861T1 (de) | 2001-11-15 |
| DE69616525T2 (de) | 2002-05-08 |
| DE69616525D1 (de) | 2001-12-06 |
| US5847232A (en) | 1998-12-08 |
| JP2006298932A (ja) | 2006-11-02 |
| CA2211193C (en) | 2009-06-30 |
| CA2211193A1 (en) | 1996-09-12 |
| JPH11501316A (ja) | 1999-02-02 |
| EP0813513B1 (en) | 2001-10-31 |
| EP0813513A1 (en) | 1997-12-29 |
| JP2008169222A (ja) | 2008-07-24 |
| JP4112000B2 (ja) | 2008-07-02 |
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