KR960017608A - Method for preparing dibutyl phthalate - Google Patents

Method for preparing dibutyl phthalate Download PDF

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Publication number
KR960017608A
KR960017608A KR1019940030926A KR19940030926A KR960017608A KR 960017608 A KR960017608 A KR 960017608A KR 1019940030926 A KR1019940030926 A KR 1019940030926A KR 19940030926 A KR19940030926 A KR 19940030926A KR 960017608 A KR960017608 A KR 960017608A
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KR
South Korea
Prior art keywords
dibutyl phthalate
producing
butanol
solvent
acid value
Prior art date
Application number
KR1019940030926A
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Korean (ko)
Other versions
KR100338042B1 (en
Inventor
김정곤
이정무
이종화
임석순
Original Assignee
최명규
애경유화 주식회사
Priority date (The priority date 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 date listed.)
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Application filed by 최명규, 애경유화 주식회사 filed Critical 최명규
Priority to KR1019940030926A priority Critical patent/KR100338042B1/en
Publication of KR960017608A publication Critical patent/KR960017608A/en
Application granted granted Critical
Publication of KR100338042B1 publication Critical patent/KR100338042B1/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

본 발명에 따르면 알킬 술페이트를 촉매로 사용하고, 본웅 원료인 알콜을 비연속적으로 분할 첨가하여 공급하며, 비극성 용매를 용제로 사용하는 공정을 이용함으로써 반응시간을 단축시키고, 경제성 및 품질이 개선된 프탈산 에스테르를 제조하는 개량된 제조방법이 제공된다.According to the present invention, by using an alkyl sulphate as a catalyst, discontinuously adding and supplying alcohol, which is a raw material, and using a non-polar solvent as a solvent, the reaction time is shortened, and the economy and quality are improved. An improved process for preparing phthalic esters is provided.

Description

디프틸프탈레이트(Dibutyl phthalate)의 제조방법Method for preparing dibutyl phthalate

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

Claims (5)

부탄올과 무수프탈산을 반응시켜 디부틸프탈레이트를 제조하는 반응에 있어서, 하기 일반식(Ⅱ)의 알킬슬페이트 촉매를 사용함을 특징으로 하는 디부틸프탈레이트의 제조방법.A method for producing dibutyl phthalate, wherein in the reaction for producing dibutyl phthalate by reacting butanol with phthalic anhydride, an alkylsulfate catalyst of the following general formula (II) is used. (상기식에서, R1및 R2는 동일 또는 상이하며, 직쇄 또는 측쇄의 C1∼C4지방족 알킬기를 말한다.)(Wherein R 1 and R 2 are the same or different and refer to a straight or branched C 1 to C 4 aliphatic alkyl group.) 제1항에 있어서, 과잉 부탄올을 산가(반응율)에 따라 수회로 분할 첨가함을 특징으로 하는 디부틸프탈레이트의 제조 방법.The method for producing dibutyl phthalate according to claim 1, wherein excess butanol is added in several portions depending on the acid value (reaction rate). 제1항에 있어서, 비극성 용매와 과잉 부탄올을 혼합 사용함을 특징으로 하는 디부틸프탈레이트의 제조 방법.The method for producing dibutyl phthalate according to claim 1, wherein a nonpolar solvent and excess butanol are used in combination. 제1항에 있어서, 2당량의 부탄올과 용매를 혼합첨가한 후, 산가 60∼70(반응율 : 70∼75%)에 도달하였을때 과잉 부탄올을 연속적으로 투입, 제거하는 것을 특징으로 하는 디부틸프탈레이트의 제조 방법.The dibutyl phthalate according to claim 1, wherein after adding two equivalents of butanol and a solvent, excess butanol is continuously added and removed when the acid value reaches 60 to 70 (reaction rate: 70 to 75%). Method of preparation. 제3항 또는 제4항에 있어서, 용매가 벤젠, 톨루엔, o, m, p-크실렌, 데칸, 노난, 옥탄, 헵탄 또는 헥산임을 특징으로 하는 디부틸프탈레이트의 제조 방법.The process for producing dibutylphthalate according to claim 3 or 4, wherein the solvent is benzene, toluene, o, m, p-xylene, decane, nonane, octane, heptane or hexane. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940030926A 1994-11-23 1994-11-23 Method for preparing dibutyl phthalate KR100338042B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940030926A KR100338042B1 (en) 1994-11-23 1994-11-23 Method for preparing dibutyl phthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940030926A KR100338042B1 (en) 1994-11-23 1994-11-23 Method for preparing dibutyl phthalate

Publications (2)

Publication Number Publication Date
KR960017608A true KR960017608A (en) 1996-06-17
KR100338042B1 KR100338042B1 (en) 2002-12-11

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Application Number Title Priority Date Filing Date
KR1019940030926A KR100338042B1 (en) 1994-11-23 1994-11-23 Method for preparing dibutyl phthalate

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103910635A (en) * 2014-03-31 2014-07-09 辽宁正渤辽西环保产业园开发有限公司 Recycling method for phthalic anhydride residues

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830046B1 (en) * 1964-05-02 1973-09-17
JPS5119938A (en) * 1974-08-10 1976-02-17 Sharp Kk Mojininshikihoshiki
US4241216A (en) * 1979-01-02 1980-12-23 Basf Wyandotte Corporation Phthalic acid diester preparation with waste stream purification and recycle
US4229586A (en) * 1979-06-07 1980-10-21 Uop Inc. Process for production of motor fuel and phthalate esters or acyclic alcohols
US4323712A (en) * 1980-09-22 1982-04-06 Uop Inc. Etherification of olefinic hydrocarbons
JPS5859945A (en) * 1981-10-07 1983-04-09 Satoru Matsumoto Preparation of phthalic ester and ester mixture
US5231222A (en) * 1991-07-02 1993-07-27 Union Carbide Chemicals & Plastics Technology Corporation Esterification process
DE4210026A1 (en) * 1992-03-27 1993-09-30 Hoechst Ag Decyl alcohol mixtures, phthalic esters obtainable therefrom and their use as plasticizers

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