KR860001036A - Polymerization Prevention Composition and Polymerization Prevention Method of Vinyl Aromatic Compound - Google Patents

Polymerization Prevention Composition and Polymerization Prevention Method of Vinyl Aromatic Compound Download PDF

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KR860001036A
KR860001036A KR1019840004450A KR840004450A KR860001036A KR 860001036 A KR860001036 A KR 860001036A KR 1019840004450 A KR1019840004450 A KR 1019840004450A KR 840004450 A KR840004450 A KR 840004450A KR 860001036 A KR860001036 A KR 860001036A
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effective amount
vinyl aromatic
aromatic compound
composition
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KR1019840004450A
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KR920002489B1 (en
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알. 버틀러 제임스 (외 3)
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원본미기재
코스덴 테크놀로지 인코포레이티드
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/20—Use of additives, e.g. for stabilisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

내용 없음No content

Description

비닐 방향족 화합물의 중합 방지 조성물 및 중합 방지방법Polymerization Prevention Composition and Polymerization Prevention Method of Vinyl Aromatic Compound

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 3개의 칼럼으로 구성되는 증류계열에서의 본 발명 공정의 실시 양태를 나타낸 개략도.1 is a schematic view showing an embodiment of the process of the present invention in a distillation series consisting of three columns.

제2도는 비닐 방향족 화합물 공급원을 재순환 칼럼으로 직접 주입시키는 방법을 이용한 본 발명 공정의 실시 양태를 나타낸 개략도.2 is a schematic representation of an embodiment of the process of the present invention using a method of directly injecting a vinyl aromatic compound source into a recycle column.

Claims (17)

유효량의 2,6-디니트로-P-크레졸 및 유효량의 하기 일반식의 페닐렌디아민으로 구성되는 산소의 존재하에 비닐방향족 화합물의 중합을 방지하는 조성물.A composition for preventing the polymerization of a vinylaromatic compound in the presence of oxygen consisting of an effective amount of 2,6-dinitro-P-cresol and an effective amount of phenylenediamine of the general formula: 상기식에서 R1및 R2는 알킬, 아릴 또는 수소이다.Wherein R 1 and R 2 are alkyl, aryl or hydrogen. 제1항에 있어서, 비닐 방향족 화합물이 스티렌, 치환된 스티렌, 디비닐벤젠, 비닐 톨루엔, 비닐나프탈렌, 폴리비닐벤젠 및 이들의 구조적이성체로 구성된는 그룹으로 부터 선택되는 조성물.The composition of claim 1 wherein the vinyl aromatic compound is selected from the group consisting of styrene, substituted styrene, divinylbenzene, vinyl toluene, vinylnaphthalene, polyvinylbenzene and structural isomers thereof. 제1항에 있어서, 알킬 그룹이 각각 1 내지 12개의 탄소원자를 함유하는 조성물.The composition of claim 1, wherein the alkyl groups each contain 1 to 12 carbon atoms. 제1항에 있어서, 2,6-디니트로-P-크레졸이 약 100ppm 내지 약 2000ppm으로 존재하고, 페닐렌디아민이 약 50ppm 내지 약 2000ppm으로 존재하는 조성물.The composition of claim 1, wherein the 2,6-dinitro-P-cresol is present from about 100 ppm to about 2000 ppm and the phenylenediamine is present from about 50 ppm to about 2000 ppm. 유효량의 2,6-디니트로-P-크레졸 및 유효량의 4-3급-부틸카테콜로 구성되는, 산소의 존재하에 비닐방향족 화합물의 중합을 방지하는 조성물.A composition for preventing the polymerization of a vinylaromatic compound in the presence of oxygen, consisting of an effective amount of 2,6-dinitro-P-cresol and an effective amount of 4-tert-butylcatechol. 제5항에 있어서, 비닐 방향족 화합물이 스티렌, 치환된 스티렌, 디비닐벤젠, 비닐 톨루엔, 비닐나프탈렌, 폴리비닐벤젠 및 이들의 구조적 이성체로 구성되는 그룹으로 부터 선택되는 조성물.The composition of claim 5 wherein the vinyl aromatic compound is selected from the group consisting of styrene, substituted styrenes, divinylbenzene, vinyl toluene, vinylnaphthalene, polyvinylbenzene and structural isomers thereof. 제5항에 있어서, 2,6-디니트로-P-크레졸이 약 100ppm 내지 약 2000ppm으로 존재하고, 4-3급 부틸카테콜이 약 50ppm 내지 약 2000ppm으로 존재하는 조성물.6. The composition of claim 5, wherein the 2,6-dinitro-P-cresol is present at about 100 ppm to about 2000 ppm and the quaternary butylcatechol is present at about 50 ppm to about 2000 ppm. 가열시 비닐방향족 화합물은, 산소의 존재하에 유효량의 2,6-디니트로-P-크레졸 및 유효량의 하기 일반식의 페닐렌디아민으로 처리하는 것을 특징으로 하는 비닐방향족 화합물의 중합을 방지하는 방법.The vinylaromatic compound upon heating is treated with an effective amount of 2,6-dinitro-P-cresol and an effective amount of phenylenediamine of the following general formula in the presence of oxygen. 상기식에서 R1및 R2는 알킬, 아릴 또는 수소이다.Wherein R 1 and R 2 are alkyl, aryl or hydrogen. 제8항에 있어서, 비닐 방향족 화합물이 스틸렌, 치환된 스티렌, 디비닐 벤젠, 비닐톨루엔, 비닐나프탈렌, 폴리비닐벤젠 및 이들의 구조적 이성체로 구성되는 그룹으로 부터 선택되는 방법.The method of claim 8, wherein the vinyl aromatic compound is selected from the group consisting of styrene, substituted styrene, divinyl benzene, vinyltoluene, vinylnaphthalene, polyvinylbenzene, and structural isomers thereof. 제8항에 있어서, 알킬 그룹이 각각 1 내지 12개의 탄소원자를 함유하는 방법.The method of claim 8, wherein the alkyl groups each contain 1 to 12 carbon atoms. 제8항에 있어서, 비닐 방향족 화합물을 150℃까지의 온도로 가열하는 방법.The method of claim 8, wherein the vinyl aromatic compound is heated to a temperature of up to 150 ° C. 10. 제8항에 있어서, 2,6-디니트로-P-크레졸의 유효량은 약 100ppm 내지 약 2000ppm이고, 페닐렌디아민의 유효량은 약 50ppm 내지 2000ppm인 방법.The method of claim 8, wherein the effective amount of 2,6-dinitro-P-cresol is about 100 ppm to about 2000 ppm and the effective amount of phenylenediamine is about 50 ppm to 2000 ppm. 제8항에 있어서, 비닐방향족 화합물의 증류중에 상기 화합물을 가열시키는 방법.The method of claim 8, wherein the compound is heated during distillation of the vinylaromatic compound. 가열시 비닐 방향족 화합물을 산소의 존재하에 유효량의 2,6-디니트로-P-크레졸 및 유효량의 4-3급-부틸카테콜로 처리하는 것을 특징으로 하는 비닐 방향족 화합물의 중합을 방지하는 방법.Treating the vinyl aromatic compound with an effective amount of 2,6-dinitro-P-cresol and an effective amount of 4-tert-butylcatechol in the presence of oxygen upon heating. 제14항에 있어서, 비닐 방향족 화합물이 스티렌, 치환된 스티렌, 디비닐 벤젠, 비닐톨루엔, 비닐나프탈렌, 폴리비닐벤젠 및 이들의 구조적 이성체로 구성된 그룹으로부터 선택되는 방법.The method of claim 14, wherein the vinyl aromatic compound is selected from the group consisting of styrene, substituted styrene, divinyl benzene, vinyltoluene, vinylnaphthalene, polyvinylbenzene, and structural isomers thereof. 제14항에 있어서, 비닐 방향족 화합물을 140℃까지의 온도로 가열하는 방법.The method of claim 14, wherein the vinyl aromatic compound is heated to a temperature of up to 140 ° C. 16. 제14항에 있어서, 2,6-디니트로-P-크레졸의 유효량은 정제될 비닐방향족 화합물을 기준으로 하여 약 100ppm 내지 약 22000ppm이고, 4-3급-부틸카테콜의 유효량은 비닐 방향족화합물 공급원을 기준으로 하여 약 50ppm 내지 2000ppm인 방법.15. The method of claim 14, wherein the effective amount of 2,6-dinitro-P-cresol is from about 100 ppm to about 22000 ppm, based on the vinylaromatic compound to be purified, and the effective amount of 4-tert-butylcatechol is a vinyl aromatic compound source. About 50 ppm to 2000 ppm, based on ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840004450A 1984-07-26 1984-07-26 Polymer inhibiting composition and process for inhibiting the polymerization of vinyl aromatic compounds KR920002489B1 (en)

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