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 PDF

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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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liquid
oxygen
terephthalic acid
pure
reactor
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KR100307259B1 (ko
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케서린 로비 앤
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조안 엠. 젤사
프랙스에어 테크놀로지, 인코포레이티드
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • 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
    • 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
    • C07C63/14—Monocyclic dicarboxylic acids
    • C07C63/15—Monocyclic dicarboxylic acids all carboxyl groups bound to carbon atoms of the six-membered aromatic ring
    • C07C63/26—1,4 - Benzenedicarboxylic acid
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    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/006—Baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
    • B01J19/1875—Stationary reactors having moving elements inside resulting in a loop-type movement internally, i.e. the mixture circulating inside the vessel such that the upwards stream is separated physically from the downwards stream(s)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • 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
    • C07C63/14—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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • B01J2219/00761—Details of the reactor
    • B01J2219/00763—Baffles
    • B01J2219/00765—Baffles attached to the reactor wall
    • B01J2219/0077—Baffles attached to the reactor wall inclined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • 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
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

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

P-크실렌 산화 반응에서 산화제로서 순수하거나 거의 순수한 산소를 사용하여 우수한 광학 성질을 갖는 테레프탈산을 제조하는 방법.
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
내용없음.

Claims (10)

  1. 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.
  2. 제 1 항에 있어서, 방향족 카르복실산이 테레프탈산, 트리멜리트산, 이소프탈산 또는 2,6-디카르복시나프탈렌인 것을 특징으로 하는 방법.
  3. 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.
  4. 제 1 항에 있어서, 용매:반응물의 비가 부피:부피를 기초로 1:1 내지 8:1 인 것을 특징으로 하는 방법.
  5. 제 1 항에 있어서, 반응기 용기가 액체 산소 반응기인 것을 특징으로 하는 방법.
  6. 제 1 항에 있어서, 반응기 용기가 증발적으로 냉각된 액체 산소 반응기인 것을 특징으로 하는 방법.
  7. 제 1 항에 있어서, 반응 온도가 180℃내지 190℃인 것을 특징으로 하는 방법.
  8. 제 1 항에 있어서, 압력이 100-125 psig 인 것을 특징으로 하는 방법.
  9. 제 1 항에 있어서, 압력이 115 psig 인 것을 특징으로 하는 방법.
  10. 제 1 항의 방법에 의해 제조되는 테레프탈산으로서, 340nm에서 측정하여 광학 밀도가 1.28 이하인 것을 특징으로 하는 테레프탈산.
KR1019960073542A 1995-12-29 1996-12-27 P-크실렌산화반응에서산화제로서순수하거나거의순수한산소를사용하여우수한광학성질을갖는테레프탈산을제조하는방법 KR100307259B1 (ko)

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

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KR970042472A true KR970042472A (ko) 1997-07-24
KR100307259B1 KR100307259B1 (ko) 2001-11-30

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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)

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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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