KR920018005A - 테레프탈산의 제조방법 - Google Patents

테레프탈산의 제조방법 Download PDF

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Publication number
KR920018005A
KR920018005A KR1019920003690A KR920003690A KR920018005A KR 920018005 A KR920018005 A KR 920018005A KR 1019920003690 A KR1019920003690 A KR 1019920003690A KR 920003690 A KR920003690 A KR 920003690A KR 920018005 A KR920018005 A KR 920018005A
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South Korea
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zone
terephthalic acid
band
aqueous medium
slurry
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KR1019920003690A
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KR100225371B1 (ko
Inventor
힌드마쉬 에릭
아더 터너 존
맥퍼슨 어 알랜
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수잔 제인 젠틀
임페리알 케미칼 인더스트리스 피엘씨
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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
    • C07C63/14—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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • 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
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • 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)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

내용 없음

Description

테레프탈산의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 공정의 흐름도이다.
제2도는 본 발명에 사용되는 필터 및 재슬러리 탱크이다.

Claims (10)

  1. 아세트산을 함유하는 반응 매질내에서 파라크실렌을 산화시켜 반응 매질내에 테레프탈산의 슬러리를 만들고; 이 슬러리를 이동가능한 필터밴드에 침척시키고; 제1구역에서 필터 밴드를 통해 슬러리로부터 반응 매질을 제거하여 젖은 상태의 첫번째 침적물을 만들고; 필터 밴드위에 침적물을 제2구역으로 이동시켜 제1수성 매질로 세척하고; 젖어있는 첫번째 침적물 내에 존재하는 반응 매질 및 제1수성 매질을 상기 밴드를 통해 제거하여 젖은 상태의 두번째 침적물을 만드고; 젖어있는 두번째 침적물을 제3구역으로 이동시키고; 제3구역에서 필터 밴드에서 부터 젖어있는 두번째 침적물을 제거하고; 제3구역에서 젖어있는 두 번째 침적물을 제거하는 중이나 또는 이과정을 행한후 곧바로 젖어있는 두 번째 침적물을 제2수성 매질과 혼합하여 제2수성 매질내에 테레프탈산의 슬러리를 만들고; 제2수성 매질로부터 테레프탈산을 회수하고; 제1구역에서 필터 밴드를 통해 제거한 반응 매질을 회수하여 이중 최소 일부의 반응 매질을 산화 단계에 직접 또는 간접적으로 재순환시키는 것으로 구성된, 테레프탈산을 제조하는 방법.
  2. 제1항에 있어서, 제2 구역에서 필터 밴드를 통해 제거된 제1수성 매질 및 반응 매질의 최소 일부를 임의적으로 제1구역에서부터 회수한 반응 매질을 최소 일부와 함께 산화단계로 되돌려보내고 및/또는 증류시키는 방법.
  3. 제1항 또는 제2항에 있어서, 제2구역이 연속식 단계로 이루어지는데, 최종 단계 이외의 각 단계에서 고체와 밴드를 통해 유입된 수성 매질이 연속한 단계에서 고체와 밴드를 통과한 수성 매질인 방법.
  4. 전기한 항의 어느 한 항에 있어서, 슬러릭 침적된 이동가능한 밴드면의 압력이 슬러리가 침적되지않은 밴드면의 압력보다 높은 방법.
  5. 제4항에 있어서, 밴드 면의 압력보가 0.1-15바인 방법.
  6. 전기한 항의 어느 한 항에 있어서, 아세트산중의 테레프탈산의 슬러리가 최소한60℃의 온도에서 이동가능한 밴드에 침적된 방법.
  7. 전기한 항의 어느 한 항에 있어서, 이동가능한 밴드가 테레프탈산으로 이루어진 물질을 제1구역에서부터 제2구역을 통해 제3구역으로 연속적으로 또는 간헐적으로 이동시키는 연속식 밴드인 방법.
  8. 전기한 항의 어느 한 항에 있어서, 제2수성 매질이 거의 순수한 물인 방법.
  9. 전기한 항의 어느 한 항에 있어서, 테레프탈산을 제2수성 매질내에 용해시켜 테레프탈산을 포함하는 용액을 만들고, 이 용액을 환원 조건하에서 최소한 약간의 불순물을 환원시키기위한 불균질 촉매 및 수소와 접촉시킨 다음에 냉각시켜 정제된 테레프탈산 고체 생성물을 침전시킨뒤 용액에서 회수하여 제2수성 매질중의 테레프탈산 슬러리를 정제시킨후 테레프탈산을 회수하는 방법.
  10. 제9항에 있어서, 용액을 냉각시키고 및/또는 증발시켜 덜 순수한 침전물 및 모액을 얻고, 침전물을 모액으로부터 분리해낸뒤 이 모액을 집접 또는 간접적으로 증류 컬럼에 보내고 및/또는 제2 수성 매질중의 크루드한 테레프탈산 재슬러리로 보내고 임의적으로 덜 순수한 침전물을 산화단계에 재순환시키는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920003690A 1991-03-07 1992-03-06 테레프탈산의 제조방법 Expired - Fee Related KR100225371B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB919104776A GB9104776D0 (en) 1991-03-07 1991-03-07 Process for the production of terephthalic acid
GB9104776.1 1991-03-07
IDP97064092A ID19108A (id) 1991-03-07 1992-06-08 Proses produksi asam tereftalat (pecahan dari p-002451)

Publications (2)

Publication Number Publication Date
KR920018005A true KR920018005A (ko) 1992-10-21
KR100225371B1 KR100225371B1 (ko) 1999-10-15

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KR1019920003690A Expired - Fee Related KR100225371B1 (ko) 1991-03-07 1992-03-06 테레프탈산의 제조방법

Country Status (15)

Country Link
US (4) US5527957A (ko)
EP (3) EP0722927A1 (ko)
JP (1) JPH0565246A (ko)
KR (1) KR100225371B1 (ko)
CN (2) CN1038409C (ko)
CA (1) CA2062063C (ko)
DE (2) DE69230569T2 (ko)
EG (1) EG19876A (ko)
ES (2) ES2142006T3 (ko)
GB (2) GB9104776D0 (ko)
ID (1) ID19108A (ko)
MX (1) MX9200997A (ko)
RU (1) RU2106337C1 (ko)
SG (1) SG66231A1 (ko)
ZA (1) ZA921380B (ko)

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JPH0565246A (ja) 1993-03-19
KR100225371B1 (ko) 1999-10-15
US5877346A (en) 1999-03-02
EP0754673A1 (en) 1997-01-22
DE69230569D1 (de) 2000-02-17
US5527957A (en) 1996-06-18
MX9200997A (es) 1992-10-01
GB9104776D0 (en) 1991-04-17
ES2142006T3 (es) 2000-04-01
US5679846A (en) 1997-10-21
CN1067977C (zh) 2001-07-04
DE69214859T2 (de) 1997-02-27
EG19876A (en) 1996-06-30
SG66231A1 (en) 1999-10-19
CA2062063A1 (en) 1992-09-08
GB9203674D0 (en) 1992-04-08
DE69230569T2 (de) 2000-07-27
CN1150945A (zh) 1997-06-04
EP0754673B1 (en) 2000-01-12
ZA921380B (en) 1993-08-25
ES2093189T3 (es) 1996-12-16
US5563293A (en) 1996-10-08
RU2106337C1 (ru) 1998-03-10
EP0502628A2 (en) 1992-09-09
CN1038409C (zh) 1998-05-20
EP0722927A1 (en) 1996-07-24
CA2062063C (en) 2002-07-09
EP0502628A3 (en) 1993-01-27
CN1064676A (zh) 1992-09-23
ID19108A (id) 1998-06-18
EP0502628B1 (en) 1996-10-30

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