KR970042472A - P-크실렌 산화 반응에서 산화제로서 순수하거나 거의 순수한 산소를 사용하여 우수한 광학 성질을 갖는 테레프탈산을 제조하는 방법 - Google Patents
P-크실렌 산화 반응에서 산화제로서 순수하거나 거의 순수한 산소를 사용하여 우수한 광학 성질을 갖는 테레프탈산을 제조하는 방법 Download PDFInfo
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- KR970042472A KR970042472A KR1019960073542A KR19960073542A KR970042472A KR 970042472 A KR970042472 A KR 970042472A KR 1019960073542 A KR1019960073542 A KR 1019960073542A KR 19960073542 A KR19960073542 A KR 19960073542A KR 970042472 A KR970042472 A KR 970042472A
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- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
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- C07—ORGANIC CHEMISTRY
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- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/14—Monocyclic dicarboxylic acids
- C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
- C07C63/24—1,3 - Benzenedicarboxylic acid
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/33—Polycyclic acids
- C07C63/337—Polycyclic acids with carboxyl groups bound to condensed ring systems
- C07C63/34—Polycyclic acids with carboxyl groups bound to condensed ring systems containing two condensed rings
- C07C63/38—Polycyclic acids with carboxyl groups bound to condensed ring systems containing two condensed rings containing two carboxyl groups both bound to carbon atoms of the condensed ring system
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B01J2219/00245—Avoiding undesirable reactions or side-effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00761—Details of the reactor
- B01J2219/00763—Baffles
- B01J2219/00765—Baffles attached to the reactor wall
- B01J2219/00777—Baffles attached to the reactor wall horizontal
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- 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
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Abstract
본 발명은 액체상에서 산소 농도가 순수 또는 거의 순수한 산소를 사용하여 최대화되면서 탄화수소 공급 농도가 반응기 내용물에 의한 빠른 희석을 통해 최소화되는 방식으로 수행되는 p-크실렌의 산화에 의한 테레프탈산의 제조 방법에 관한 것이다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
내용없음.
Claims (10)
- 방향족 카르복실산을 제조하는 방법으로서, a) 반응기 용기내에 함유되고, 유기 용매, 망간 및 코발트로 이루어지는 그룹으로부터 선택된 1개 이상의 촉매 및 브롬 개시제를 포함하는 액체 영역을 제공하는 단계; b) 상기 반응기내에 위치한 임펠러에 의해 재순환하는 흐름 패턴으로 상기 액체 영역을 유지시키는 단계; c) 상기 임펠러에 의해 생성되는 난류장내에 가장 높은 난류의 반응물 주입지점에서 액체 영역의 상기 재순환하는 부분 중에 방향족 알킬 반응물을 직접 주입시켜서 상기 반응물을 상기 액체 영역내로 빠르게 분산시키는 단계; d) 상기 임펠러에 바로 가까이에 있고 상기 임펠러에 의해 발생되는 가장 높은 전단의 지점에서 상기 액체 영역내로 순수하거나 거의 순수한 산소를 주입시켜서, 산소가 상기 액체내로 주입되면 빠른 소모를 위한 작은 기포로서 상기 액체내에 산소를 빠르게 분산시크는 단계; e) 60분 동안의 잔류 시간 동안, 90-300 psig의 압력 및 170-190℃의 온도에서 상기 반응기 용기내에 산소-방향족 알킬 혼합물을 유지시키는 단계; 및 f) 착색된 불순물이 없는 방향족 카르복실산 생성물을 회수하는 단계로 이루어지는 방법.
- 제 1 항에 있어서, 방향족 카르복실산이 테레프탈산, 트리멜리트산, 이소프탈산 또는 2,6-디카르복시나프탈렌인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 방향족 알킬이 p-크실렌이고 방향족 카르복실산이 테레프탈산이며, 촉매는 코발트인 경우에는 400-700 ppm의 양으로 존재하고, 망간인 경우에는 800-1700 ppm의 양으로 존재하며, 브롬 개시제가 HBr이고 500-1200 ppm의 양으로 존재하는 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 용매:반응물의 비가 부피:부피를 기초로 1:1 내지 8:1 인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 반응기 용기가 액체 산소 반응기인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 반응기 용기가 증발적으로 냉각된 액체 산소 반응기인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 반응 온도가 180℃내지 190℃인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 압력이 100-125 psig 인 것을 특징으로 하는 방법.
- 제 1 항에 있어서, 압력이 115 psig 인 것을 특징으로 하는 방법.
- 제 1 항의 방법에 의해 제조되는 테레프탈산으로서, 340nm에서 측정하여 광학 밀도가 1.28 이하인 것을 특징으로 하는 테레프탈산.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/586,022 US5696285A (en) | 1995-12-29 | 1995-12-29 | Production of terephthalic acid with excellent optical properties through the use of pure or nearly pure oxygen as the oxidant in p-xylene oxidation |
US08/586,022 | 1995-12-29 |
Publications (2)
Publication Number | Publication Date |
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KR970042472A true KR970042472A (ko) | 1997-07-24 |
KR100307259B1 KR100307259B1 (ko) | 2001-11-30 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019960073542A KR100307259B1 (ko) | 1995-12-29 | 1996-12-27 | P-크실렌산화반응에서산화제로서순수하거나거의순수한산소를사용하여우수한광학성질을갖는테레프탈산을제조하는방법 |
Country Status (12)
Country | Link |
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US (1) | US5696285A (ko) |
EP (1) | EP0781754B1 (ko) |
JP (1) | JPH09194425A (ko) |
KR (1) | KR100307259B1 (ko) |
CN (1) | CN1078878C (ko) |
AR (1) | AR005299A1 (ko) |
BR (1) | BR9606186A (ko) |
CA (1) | CA2194034C (ko) |
DE (1) | DE69610278T2 (ko) |
ES (1) | ES2152481T3 (ko) |
MX (1) | MX9700191A (ko) |
PT (1) | PT781754E (ko) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6362367B2 (en) | 1998-04-21 | 2002-03-26 | Union Carbide Chemicals & Plastics Technology Corp. | Preparation of organic acids |
US6153790A (en) * | 1998-12-01 | 2000-11-28 | Shell Oil Company | Method to produce aromatic dicarboxylic acids using cobalt and zirconium catalysts |
KR20000041506A (ko) | 1998-12-22 | 2000-07-15 | 유현식 | 아로마틱폴리카본산의 제조방법 |
US6194607B1 (en) | 1998-12-22 | 2001-02-27 | Samsung General Chemicals Co., Ltd. | Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof |
US6180822B1 (en) | 1998-12-22 | 2001-01-30 | Samsung General Chemical Co., Ltd. | Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas |
DE10206168A1 (de) * | 2002-02-14 | 2003-08-21 | Guehring Joerg | Kupplung für mudular aufgebaute Werkzeughalterarme |
US6657067B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Method for the manufacture of chlorophthalic anhydride |
US6649773B2 (en) | 2002-03-22 | 2003-11-18 | General Electric Company | Method for the manufacture of halophthalic acids and anhydrides |
US6657068B2 (en) | 2002-03-22 | 2003-12-02 | General Electric Company | Liquid phase oxidation of halogenated ortho-xylenes |
KR100881166B1 (ko) * | 2002-09-16 | 2009-02-03 | 에스케이케미칼주식회사 | 테레프탈산의 제조 방법 |
WO2004058377A1 (en) * | 2002-12-16 | 2004-07-15 | E.I. Du Pont De Nemours And Company | Apparatus and method for forming crystals/precipitate/particles |
US7153480B2 (en) * | 2003-05-22 | 2006-12-26 | David Robert Bickham | Apparatus for and method of producing aromatic carboxylic acids |
US20050256335A1 (en) * | 2004-05-12 | 2005-11-17 | Ovidiu Marin | Providing gases to aromatic carboxylic acid manufacturing processes |
US7541489B2 (en) | 2004-06-30 | 2009-06-02 | Sabic Innovative Plastics Ip B.V. | Method of making halophthalic acids and halophthalic anhydrides |
US7572936B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7504535B2 (en) | 2004-09-02 | 2009-03-17 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US20060046217A1 (en) * | 2004-09-02 | 2006-03-02 | Parker Joseph L | Waste treatment system for PTA and PET manufacturing plants |
US7683210B2 (en) | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7568361B2 (en) | 2004-09-02 | 2009-08-04 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910769B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7582793B2 (en) | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7741515B2 (en) | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7381836B2 (en) | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7507857B2 (en) | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692037B2 (en) | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7589231B2 (en) | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US8187992B2 (en) * | 2004-12-20 | 2012-05-29 | Process Design Center B.V. | Catalyst and method for preparing aromatic carboxylic acids |
US7550627B2 (en) * | 2005-03-08 | 2009-06-23 | Eastman Chemical Company | Processes for producing aromatic dicarboxylic acids |
US20060205974A1 (en) * | 2005-03-08 | 2006-09-14 | Lavoie Gino G | Processes for producing aromatic dicarboxylic acids |
US7919652B2 (en) * | 2005-05-19 | 2011-04-05 | Eastman Chemical Company | Process to produce an enriched composition through the use of a catalyst removal zone and an enrichment zone |
US20060264664A1 (en) * | 2005-05-19 | 2006-11-23 | Parker Kenny R | Esterification of an exchange solvent enriched composition |
US7880031B2 (en) * | 2005-05-19 | 2011-02-01 | Eastman Chemical Company | Process to produce an enrichment feed |
US7884231B2 (en) * | 2005-05-19 | 2011-02-08 | Eastman Chemical Company | Process to produce an enriched composition |
US20060264662A1 (en) * | 2005-05-19 | 2006-11-23 | Gibson Philip E | Esterification of an enriched composition |
US7432395B2 (en) * | 2005-05-19 | 2008-10-07 | Eastman Chemical Company | Enriched carboxylic acid composition |
US20060264656A1 (en) * | 2005-05-19 | 2006-11-23 | Fujitsu Limited | Enrichment process using compounds useful in a polyester process |
US7741516B2 (en) | 2005-05-19 | 2010-06-22 | Eastman Chemical Company | Process to enrich a carboxylic acid composition |
US7897809B2 (en) * | 2005-05-19 | 2011-03-01 | Eastman Chemical Company | Process to produce an enrichment feed |
US7834208B2 (en) * | 2005-05-19 | 2010-11-16 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
US7304178B2 (en) * | 2005-05-19 | 2007-12-04 | Eastman Chemical Company | Enriched isophthalic acid composition |
US7557243B2 (en) * | 2005-05-19 | 2009-07-07 | Eastman Chemical Company | Enriched terephthalic acid composition |
US7884232B2 (en) | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7355068B2 (en) * | 2006-01-04 | 2008-04-08 | Eastman Chemical Company | Oxidation system with internal secondary reactor |
US7888529B2 (en) | 2006-03-01 | 2011-02-15 | Eastman Chemical Company | Process to produce a post catalyst removal composition |
US20080179247A1 (en) * | 2007-01-30 | 2008-07-31 | Eastman Chemical Company | Elimination of Wastewater Treatment System |
US8080685B2 (en) * | 2007-06-27 | 2011-12-20 | H R D Corporation | System and process for production of benzoic acids and phthalic acids |
US9205388B2 (en) | 2007-06-27 | 2015-12-08 | H R D Corporation | High shear system and method for the production of acids |
JP2010168327A (ja) * | 2009-01-26 | 2010-08-05 | Ueno Fine Chem Ind Ltd | 2,6−ナフタレンジカルボン酸の製造方法 |
JP5168216B2 (ja) * | 2009-04-10 | 2013-03-21 | 三菱瓦斯化学株式会社 | 酸化反応器および芳香族ポリカルボン酸の製造法 |
CN102309992A (zh) * | 2010-06-30 | 2012-01-11 | 中国石油化工股份有限公司 | 对二甲苯氧化母液中钴锰催化剂的回收方法 |
JP2017095391A (ja) * | 2015-11-24 | 2017-06-01 | 三菱化学株式会社 | 芳香族ジカルボン酸の製造方法 |
KR20200078221A (ko) * | 2018-12-21 | 2020-07-01 | 한화솔루션 주식회사 | 회분식 반응기 |
DE102022126030A1 (de) * | 2022-10-07 | 2024-04-18 | Skeleton Technologies GmbH | Wirbelbettreaktorsystem und Verfahren zum Betrieb desselben |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2833816A (en) * | 1954-05-03 | 1958-05-06 | Mid Century Corp | Preparation of aromatic polycarboxylic acids |
US3092658A (en) * | 1957-08-12 | 1963-06-04 | Standard Oil Co | Continuous system for oxidizing substituted aromatic hydrocarbons and producing carboxylic acids |
US3064044A (en) * | 1957-08-15 | 1962-11-13 | Standard Oil Co | Multistage oxidation system for preparing dicarboxylic acid |
US3089907A (en) * | 1958-04-21 | 1963-05-14 | Mid Century Corp | Pressure controlled liquid phase oxidation process for aromatic acid production |
US3089906A (en) * | 1958-04-21 | 1963-05-14 | Mid Century Corp | Oxidation chemical process |
JPS54109939A (en) * | 1978-02-15 | 1979-08-29 | Mitsui Petrochem Ind Ltd | Oxidation reactor for preparing aromatic carboxylic acid |
US4454077A (en) * | 1982-07-08 | 1984-06-12 | Union Carbide Corporation | Process and apparatus for mixing a gas and a liquid |
US4769487A (en) * | 1984-08-20 | 1988-09-06 | Amoco Corporation | Multistage oxidation in a single reactor |
US4835307A (en) * | 1984-12-13 | 1989-05-30 | Amoco Corporation | Method and apparatus for controlling the manufacture of terephthalic acid to control the level and variability of the contaminant content and the optical density |
US5099064A (en) * | 1985-12-30 | 1992-03-24 | Amoco Corporation | Method for increasing conversion efficiency for oxidation of an alkyl aromatic compound to an aromatic carboxylic acid |
KR920000042B1 (ko) * | 1986-10-21 | 1992-01-06 | 유니온 카바이드 코포레이션 | 기체와 액체의 혼합방법 및 장치 |
US4900480A (en) * | 1986-10-21 | 1990-02-13 | Union Carbide Corporation | Gas-liquid mixing |
US5081290A (en) * | 1990-06-21 | 1992-01-14 | Amoco Corporation | Process for making aromatic polycarboxylic acids and oxidation catalyst system |
US5095146A (en) | 1991-03-25 | 1992-03-10 | Amoco Corporation | Water addition to crystallization train to purify terephthalic acid product |
JP3232774B2 (ja) * | 1993-05-13 | 2001-11-26 | 三菱化学株式会社 | 高純度のテレフタル酸の製造方法 |
US5371283A (en) * | 1993-12-22 | 1994-12-06 | Praxair Technology, Inc. | Terephthalic acid production |
US5523474A (en) * | 1994-05-11 | 1996-06-04 | Praxair Technology, Inc. | Terephthalic acid production using evaporative cooling |
CA2149058C (en) * | 1994-05-11 | 1998-07-28 | Jeffrey Paul Kingsley | Enhanced oxidation of organic chemicals |
-
1995
- 1995-12-29 US US08/586,022 patent/US5696285A/en not_active Expired - Fee Related
-
1996
- 1996-12-27 AR ARP960105920A patent/AR005299A1/es unknown
- 1996-12-27 CA CA002194034A patent/CA2194034C/en not_active Expired - Fee Related
- 1996-12-27 PT PT96120911T patent/PT781754E/pt unknown
- 1996-12-27 EP EP96120911A patent/EP0781754B1/en not_active Expired - Lifetime
- 1996-12-27 JP JP8356677A patent/JPH09194425A/ja active Pending
- 1996-12-27 KR KR1019960073542A patent/KR100307259B1/ko not_active IP Right Cessation
- 1996-12-27 CN CN96123483A patent/CN1078878C/zh not_active Expired - Fee Related
- 1996-12-27 BR BR9606186A patent/BR9606186A/pt active Search and Examination
- 1996-12-27 DE DE69610278T patent/DE69610278T2/de not_active Expired - Fee Related
- 1996-12-27 ES ES96120911T patent/ES2152481T3/es not_active Expired - Lifetime
-
1997
- 1997-01-07 MX MX9700191A patent/MX9700191A/es unknown
Also Published As
Publication number | Publication date |
---|---|
BR9606186A (pt) | 1998-08-18 |
CN1160707A (zh) | 1997-10-01 |
JPH09194425A (ja) | 1997-07-29 |
ES2152481T3 (es) | 2001-02-01 |
PT781754E (pt) | 2001-02-28 |
CA2194034C (en) | 2001-06-12 |
EP0781754A1 (en) | 1997-07-02 |
MX9700191A (es) | 1997-12-31 |
CN1078878C (zh) | 2002-02-06 |
AR005299A1 (es) | 1999-04-28 |
CA2194034A1 (en) | 1997-06-30 |
DE69610278T2 (de) | 2001-04-05 |
US5696285A (en) | 1997-12-09 |
KR100307259B1 (ko) | 2001-11-30 |
DE69610278D1 (de) | 2000-10-19 |
EP0781754B1 (en) | 2000-09-13 |
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