DE69409714T2 - Verfahren zur Entfernung von Jodverbindungen aus rohem Essigsäureanhydrid oder aus dem Gemisch des rohen Essigsäureanhydrids und roher Essigsäure - Google Patents
Verfahren zur Entfernung von Jodverbindungen aus rohem Essigsäureanhydrid oder aus dem Gemisch des rohen Essigsäureanhydrids und roher EssigsäureInfo
- Publication number
- DE69409714T2 DE69409714T2 DE69409714T DE69409714T DE69409714T2 DE 69409714 T2 DE69409714 T2 DE 69409714T2 DE 69409714 T DE69409714 T DE 69409714T DE 69409714 T DE69409714 T DE 69409714T DE 69409714 T2 DE69409714 T2 DE 69409714T2
- Authority
- DE
- Germany
- Prior art keywords
- acetic anhydride
- crude acetic
- crude
- mixture
- acetic acid
- 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.)
- Revoked
Links
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 title claims description 309
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims description 182
- 239000000203 mixture Substances 0.000 title claims description 77
- 238000000034 method Methods 0.000 title claims description 43
- 150000002497 iodine compounds Chemical class 0.000 title claims description 36
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 75
- 238000004821 distillation Methods 0.000 claims description 56
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 51
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 claims description 51
- -1 alkali metal salt Chemical class 0.000 claims description 42
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 41
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 26
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 20
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 claims description 19
- 239000003513 alkali Substances 0.000 claims description 17
- 239000003054 catalyst Substances 0.000 claims description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 14
- 239000012295 chemical reaction liquid Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 13
- 229910052783 alkali metal Inorganic materials 0.000 claims description 11
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 8
- 150000003284 rhodium compounds Chemical class 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 229910000043 hydrogen iodide Inorganic materials 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- LEKJTGQWLAUGQA-UHFFFAOYSA-N acetyl iodide Chemical compound CC(I)=O LEKJTGQWLAUGQA-UHFFFAOYSA-N 0.000 description 11
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 10
- 229910052740 iodine Inorganic materials 0.000 description 10
- 239000011630 iodine Substances 0.000 description 10
- 229910052703 rhodium Inorganic materials 0.000 description 9
- 239000010948 rhodium Substances 0.000 description 9
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 9
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 description 8
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 7
- 229940006461 iodide ion Drugs 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- RUKCJUBTRDGPCC-UHFFFAOYSA-N acetic acid;acetyl acetate Chemical compound CC(O)=O.CC(=O)OC(C)=O RUKCJUBTRDGPCC-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012266 salt solution Substances 0.000 description 6
- 239000007858 starting material Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 5
- 239000002841 Lewis acid Substances 0.000 description 4
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 150000001639 boron compounds Chemical class 0.000 description 4
- 238000005810 carbonylation reaction Methods 0.000 description 4
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 4
- 150000004694 iodide salts Chemical class 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 3
- 150000001845 chromium compounds Chemical class 0.000 description 3
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 description 3
- 150000002642 lithium compounds Chemical class 0.000 description 3
- 150000003003 phosphines Chemical class 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 229910001516 alkali metal iodide Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 230000006315 carbonylation Effects 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229940009827 aluminum acetate Drugs 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- CCGKOQOJPYTBIH-UHFFFAOYSA-N ethenone Chemical compound C=C=O CCGKOQOJPYTBIH-UHFFFAOYSA-N 0.000 description 1
- 235000019439 ethyl acetate Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002496 iodine Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- VGTPKLINSHNZRD-UHFFFAOYSA-N oxoborinic acid Chemical compound OB=O VGTPKLINSHNZRD-UHFFFAOYSA-N 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/20—Power plant
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12863193A JP3377555B2 (ja) | 1993-05-31 | 1993-05-31 | カルボニル化反応生成物に含有されるヨウ素化合物の除去方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69409714D1 DE69409714D1 (de) | 1998-05-28 |
| DE69409714T2 true DE69409714T2 (de) | 1998-08-13 |
Family
ID=14989592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69409714T Revoked DE69409714T2 (de) | 1993-05-31 | 1994-05-27 | Verfahren zur Entfernung von Jodverbindungen aus rohem Essigsäureanhydrid oder aus dem Gemisch des rohen Essigsäureanhydrids und roher Essigsäure |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5653853A (enExample) |
| EP (1) | EP0632007B1 (enExample) |
| JP (1) | JP3377555B2 (enExample) |
| KR (1) | KR0125303B1 (enExample) |
| CN (1) | CN1049649C (enExample) |
| DE (1) | DE69409714T2 (enExample) |
| TW (1) | TW320567B (enExample) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4489487B2 (ja) * | 2004-04-02 | 2010-06-23 | ダイセル化学工業株式会社 | ヨウ化水素の分離方法 |
| CN103189125A (zh) * | 2010-11-12 | 2013-07-03 | 伊士曼化工公司 | 羰基化过程产生的气流的处理 |
| CN103370300B (zh) | 2010-12-15 | 2016-07-06 | 株式会社大赛璐 | 乙酸的制备方法 |
| KR101865436B1 (ko) * | 2010-12-24 | 2018-06-07 | 주식회사 다이셀 | 아세트산의 제조 방법 |
| BR112013016630B1 (pt) | 2010-12-30 | 2022-03-03 | Celanese International Corporation | Composição de resina de troca iônica, leito de proteção e processo para purificar uma composição de ácido acético bruto |
| CN106715379B (zh) | 2014-10-02 | 2020-05-19 | 国际人造丝公司 | 用于生产乙酸的方法 |
| US9260369B1 (en) | 2014-11-14 | 2016-02-16 | Celanese International Corporation | Processes for producing acetic acid product having low butyl acetate content |
| US9302975B1 (en) | 2015-07-01 | 2016-04-05 | Celanese International Corporation | Process for flashing a reaction medium |
| MX2017009867A (es) | 2015-01-30 | 2017-11-15 | Celanese Int Corp | Procedimientos para producir acido acetico. |
| MY181741A (en) | 2015-01-30 | 2021-01-06 | Celanese Int Corp | Processes for producing acetic acid |
| US9561994B2 (en) | 2015-01-30 | 2017-02-07 | Celanese International Corporation | Processes for producing acetic acid |
| US9487464B2 (en) | 2015-01-30 | 2016-11-08 | Celanese International Corporation | Processes for producing acetic acid |
| US9512056B2 (en) | 2015-02-04 | 2016-12-06 | Celanese International Corporation | Process to control HI concentration in residuum stream |
| US9505696B2 (en) | 2015-02-04 | 2016-11-29 | Celanese International Corporation | Process to control HI concentration in residuum stream |
| US10413840B2 (en) | 2015-02-04 | 2019-09-17 | Celanese International Coporation | Process to control HI concentration in residuum stream |
| JP5866474B1 (ja) * | 2015-02-04 | 2016-02-17 | セラニーズ・インターナショナル・コーポレーション | 残渣流中のｈｉ濃度を制御するプロセス |
| US9302974B1 (en) | 2015-07-01 | 2016-04-05 | Celanese International Corporation | Process for producing acetic acid |
| US9382183B1 (en) | 2015-07-01 | 2016-07-05 | Celanese International Corporation | Process for flashing a reaction medium |
| RS63644B1 (sr) | 2015-10-02 | 2022-10-31 | Celanese Int Corp | Postupak za proizvodnju sirćetne kiseline recikliranjem vode |
| US9957216B2 (en) | 2015-11-13 | 2018-05-01 | Celanese International Corporation | Processes for producing acetic acid |
| US9908835B2 (en) | 2015-11-13 | 2018-03-06 | Celanese International Corporation | Processes for purifying acetic and hydrating anhydride |
| US10807935B2 (en) | 2018-11-02 | 2020-10-20 | Celanese International Corporation | Process for continuous acetic acid production |
| US20230127564A1 (en) | 2020-04-01 | 2023-04-27 | Celanese International Corporation | Processes for removing and/or reducing permanganate reducing compounds and alkyl iodides |
| KR20230019134A (ko) | 2020-06-03 | 2023-02-07 | 셀라니즈 인터내셔날 코포레이션 | 아세트산의 생성 및 정제 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3425798A (en) * | 1966-01-10 | 1969-02-04 | Eastman Kodak Co | Process for the removal of iodine from organic compounds |
| DE3045081A1 (de) * | 1980-11-29 | 1982-07-01 | Basf Ag, 6700 Ludwigshafen | Verfahren zur abtrennung organischer jod-verbindung en von acetaldehydfreien carbonylierungsprodukten des methanols, methylacetates und dimethylethers |
| US4340569A (en) * | 1981-03-06 | 1982-07-20 | The Halcon Sd Group, Inc. | Treatment of carbonylation residues |
| DE3137782A1 (de) * | 1981-09-23 | 1983-03-31 | Hoechst Ag, 6230 Frankfurt | Verfahren zur rueckgewinnung von jodverbindungen aus dem abgas von carbonylierungsreaktionen |
| JPS58116436A (ja) * | 1981-12-28 | 1983-07-11 | Mitsubishi Gas Chem Co Inc | 無水酢酸の精製法 |
| GB8319619D0 (en) * | 1983-07-20 | 1983-08-24 | Bp Chem Int Ltd | Acetic anhydride |
| DE3329781A1 (de) * | 1983-08-18 | 1985-02-28 | Hoechst Ag, 6230 Frankfurt | Verfahren zur abtrennung von jod und dessen verbindungen aus den bei der carbonylierung von dimethylether, methylacetat oder methanol erhaltenen carbonylierungsprodukten |
| US5026908A (en) * | 1984-05-03 | 1991-06-25 | Hoechst Celanese Corporation | Methanol carbonylation process |
| JPS618811A (ja) * | 1984-06-22 | 1986-01-16 | 古河電気工業株式会社 | 同軸ケ−ブル |
| CA1299195C (en) * | 1986-06-16 | 1992-04-21 | G. Paull Torrence | Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol |
| GB9100216D0 (en) * | 1991-01-05 | 1991-02-20 | Bp Chem Int Ltd | Process |
| US5175362A (en) * | 1991-05-29 | 1992-12-29 | Eastman Kodak Company | Recovery of acetyl values from ethylidene diacetate |
| GB9120902D0 (en) * | 1991-10-02 | 1991-11-13 | Bp Chem Int Ltd | Purification process |
| GB9305902D0 (en) * | 1993-03-22 | 1993-05-12 | Bp Chem Int Ltd | Process |
| US5502249A (en) * | 1994-05-31 | 1996-03-26 | Eastman Chemical Company | Process for the removal of iodine from acetyl compounds |
-
1993
- 1993-05-31 JP JP12863193A patent/JP3377555B2/ja not_active Expired - Fee Related
-
1994
- 1994-05-27 EP EP94108218A patent/EP0632007B1/en not_active Revoked
- 1994-05-27 DE DE69409714T patent/DE69409714T2/de not_active Revoked
- 1994-05-28 TW TW083104879A patent/TW320567B/zh active
- 1994-05-31 KR KR1019940012176A patent/KR0125303B1/ko not_active Expired - Fee Related
- 1994-05-31 CN CN94107588A patent/CN1049649C/zh not_active Expired - Fee Related
-
1996
- 1996-06-03 US US08/657,427 patent/US5653853A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69409714D1 (de) | 1998-05-28 |
| TW320567B (enExample) | 1997-11-21 |
| JPH06340576A (ja) | 1994-12-13 |
| JP3377555B2 (ja) | 2003-02-17 |
| US5653853A (en) | 1997-08-05 |
| CN1101033A (zh) | 1995-04-05 |
| EP0632007A1 (en) | 1995-01-04 |
| KR0125303B1 (ko) | 1997-12-01 |
| EP0632007B1 (en) | 1998-04-22 |
| CN1049649C (zh) | 2000-02-23 |
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