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CN101684066A - Method for preparing dodecylphenol - Google Patents

Method for preparing dodecylphenol Download PDF

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Publication number
CN101684066A
CN101684066A CN200810222751A CN200810222751A CN101684066A CN 101684066 A CN101684066 A CN 101684066A CN 200810222751 A CN200810222751 A CN 200810222751A CN 200810222751 A CN200810222751 A CN 200810222751A CN 101684066 A CN101684066 A CN 101684066A
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China
Prior art keywords
dodecylphenol
phenol
isobutylene
catalyst
preparation
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CN200810222751A
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Chinese (zh)
Inventor
商育伟
李树新
郭文莉
伍一波
李绍冉
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Beijing Institute of Petrochemical Technology
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Beijing Institute of Petrochemical Technology
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Priority to CN200810222751A priority Critical patent/CN101684066A/en
Publication of CN101684066A publication Critical patent/CN101684066A/en
Pending legal-status Critical Current

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Abstract

本发明涉及十二烷基酚的制备方法,在石油醚溶剂中(指使用路易斯酸催化剂时),由催化剂催化,原料为苯酚和三聚异丁烯,进行烷基化反应。反应温度为20~90℃,反应时间为2~10小时,苯酚和三聚异丁烯比为2.0~10.0∶1(摩尔比)条件下制得,本发明优点是产品纯度高,质量好,反应收率高,催化剂使用寿命长等特点,本发明的制备方法可应用于现行十二烷基酚的生产工艺中。The invention relates to a preparation method of dodecylphenol, which is carried out in a petroleum ether solvent (when Lewis acid catalyst is used), catalyzed by a catalyst, and the raw materials are phenol and trimerized isobutylene, and the alkylation reaction is carried out. The reaction temperature is 20-90°C, the reaction time is 2-10 hours, and the ratio of phenol and trimerized isobutylene is 2.0-10.0:1 (molar ratio). High efficiency, long service life of catalyst and other characteristics, the preparation method of the present invention can be applied in the production technology of existing dodecylphenol.

Description

The preparation method of 4-dodecylphenol
Technical field
The invention belongs to field of fine chemical, include the preparation method of organic compounds, specifically, relate to prepare 4-dodecylphenol with the alkylated reaction of an acidic catalyst catalysis of phenol and tri-isobutylene.
Background technology
Alkylphenol is to carry out alkylated reaction by alkene, Fatty Alcohol(C12-C14 and C12-C18) or halohydrocarbon and phenol to generate, and important alkylphenol all is that alkylated reaction by phenol and alkene obtains in industrial production.Alkylphenol is not only the important intermediate of anion surfactants such as production alkylphenol polyoxyethylene nonionogenic tenside and alkylphenol polyoxyethylene sulfuric acid phosphate ester salt, also is the chemical intermediate of producing sterilant, softening agent, stablizer etc.
4-dodecylphenol is one of important source material of preparation lubricating oil additive and industrial surface activity agent etc.Because 4-dodecylphenol belongs to long chain alkylphenol, and this compounds synthetic mainly is to be that raw material and phenol carry out alkylation and synthesizes with long-chain end alkene or long-chain halohydrocarbon.The main method of producing at present both at home and abroad dodecyl phenol has following several: (1) with positive laurylene hydrocarbon as alkylating reagent catalysis synthesizing alkyl phenol.(2) with halo dodecane hydrocarbon as alkylating reagent catalysis synthesizing alkyl phenol.(3) with n-dodecanol as alkylating reagent catalysis synthesizing alkyl phenol.
At present in the preparation dodecyl phenol method, the cost height, unfavorable factor such as productive rate is low, and long reaction time and environmental pollution are big is restricting and is developing, and the alkylphenol product exists purity low, and color is dark, quality problems such as antioxidative stabilizer difference.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, and the preparation method of the good 4-dodecylphenol of a kind of performance is provided.
The object of the invention can realize by following measure:
The preparation method of 4-dodecylphenol of the present invention, it is in petroleum ether solvent, solvent load be 2~4 times to the liquid volume of phenol, carry out catalysis with catalyzer, catalyst levels is 5%~20% of a phenol quality, raw material is liquid phase phenol and tri-isobutylene, phenol and tri-isobutylene mol ratio are 2.0~10.0: 1, and temperature of reaction is 20~90 ℃, and the reaction times is under 2~10 hours conditions, carry out alkylated reaction, make through aftertreatment again.
Described catalyzer comprises Lewis acid, acidic resins and molecular sieve; When using lewis acid catalyst, use petroleum ether solvent.
Described catalyzer Lewis acid comprises boron trifluoride, aluminum chloride, boron trifluoride ether solution, boron trifluoride monohydrate; The acid resin of sulfonic acid vinylbenzene-diethylbenzene polymkeric substance is as Zeo-karb Amberlyst 15 and C102 macropore strong acid cation exchange resin etc.; Si-Al molecular sieve, its silica alumina ratio are 25~30, as HY molecular sieve and ZSM-5 molecular sieve etc.
Described tri-isobutylene comprises the isomers of trimerical all structures of iso-butylene, as isobutene oligomerisation laurylene hydrocarbon.
Described post-treating method: comprise while hot reaction mixture is carried out suction filtration, hot wash 4~5 times, underpressure distillation, suction, under nitrogen protection, suction filtration washs 2~3 times, underpressure distillation, lucifuge is stored, and obtains the dodecyl phenolic product.
Because of alkylphenol as a class important fine chemical material and intermediate, the quality quality of its product directly has influence on the quality height of the end product of its application, so the purpose of this invention is to provide a kind of novel method for preparing the high-quality 4-dodecylphenol.
The present invention has following advantage compared to existing technology:
1, the reaction raw materials tri-isobutylene is cheap and easy to get, has opened up new purposes for the industry byproduct tri-isobutylene, has improved the utility value of tri-isobutylene greatly.
2, solved the too high problem of present production 4-dodecylphenol cost, the raw materials used tri-isobutylene prices such as the positive laurylene hydrocarbon of present raw materials for production of comparing are cheap, greatly reduce production cost.
3, catalyst system therefor is in extensive range, be fit to most industrial manufacture process, thereby applicability is extensive.The catalyzer long service life.
4, product yield height, the purity height, quality is good, and product colour is shallow, and stability in storage is also better.
Embodiment
Enumerate 3 embodiment below, the present invention is further specified, but the present invention is not only limited to this several embodiment.
Embodiment 1:
The there-necked flask reactor that has electric mixing device and vacuum treatment installation, in 45mL sherwood oil (90~120 ℃ of boiling range sherwood oils) solvent, solvent load be 2.5 times to the liquid volume of phenol, drop into 0.2mol phenol, 1.0mL relative density is that the boron trifluoride ether solution catalyzer of 1.12-1.14 is in there-necked flask, catalyst levels is 12% of a phenol quality, after thorough mixing is even, under agitation drip the tri-isobutylene that total amount is 0.1mol, phenol and tri-isobutylene mol ratio are 2: 1, under 20 ℃ of temperature of reaction, stirring reaction carries out suction filtration with reaction mixture after 2 hours while hot, while hot filtrate is used hot wash 5 times, remove waste water.Thick product is carried out underpressure distillation, under 150 ℃ of vacuum tightness 1.3mb, temperature, obtain the cut product, at last under nitrogen protection; while hot reaction mixture is carried out suction filtration, filtrate is used hot wash 3 times, thick product carries out underpressure distillation; lucifuge is stored, and obtains the dodecyl phenolic product.
Embodiment 2:
The preparation method is identical with embodiment 1, different is replaces embodiment 1 corresponding raw material with phenol and 3g Zeo-karb Amberlyst 15 catalyzer of 0.2mol, catalyst levels is 15% of a phenol quality, the reaction environment vacuum-treat, after fully mixing under 50 ℃ of temperature, continuing to drip total amount 0.1mol tri-isobutylene under the stirring, phenol and tri-isobutylene mol ratio are 2: 1, under 50 ℃ of temperature of reaction, behind the stirring reaction 6 hours, while hot reaction mixture is carried out suction filtration, the product aftertreatment is with example 1.
Embodiment 3:
The preparation method is identical with embodiment 1, different is that 0.2mol phenol and 3g strongly-acid pure aluminium silicate bead molecular sieve catalyst are replaced embodiment 1 corresponding raw material, catalyst levels is 15% of a phenol quality, the reaction environment vacuum-treat, under 90 ℃ of temperature, after fully mixing, continuing to drip total amount under the stirring is the tri-isobutylene of 0.1mol, phenol and tri-isobutylene mol ratio are 2: 1, under 90 ℃ of temperature of reaction, behind the stirring reaction 10 hours, while hot reaction mixture is carried out suction filtration.The product aftertreatment is with example 1.

Claims (4)

1、十二烷基酚的制备方法,其特征在于:它在石油醚溶剂中,溶剂用量为2~4倍于苯酚液态体积,用催化剂进行催化,催化剂用量为苯酚质量的5%~20%,原料是液相苯酚与三聚异丁烯,苯酚与三聚异丁烯摩尔比为2.0~10.0∶1,反应温度为20~90℃,反应时间为2~10小时条件下,进行烷基化反应,再经后处理制得。1, the preparation method of dodecylphenol, it is characterized in that: it is in sherwood oil solvent, and solvent consumption is 2~4 times of phenol liquid volume, catalyzes with catalyst, and catalyst consumption is 5%~20% of phenol mass , the raw materials are liquid phase phenol and trimeric isobutylene, the molar ratio of phenol to trimerized isobutylene is 2.0-10.0:1, the reaction temperature is 20-90°C, and the reaction time is 2-10 hours, the alkylation reaction is carried out, and then After post-processing in the system. 2、根据权利要求1所述的十二烷基酚的制备方法,其特征在于:所述的催化剂包括路易斯酸,酸性树脂和分子筛;使用路易斯酸催化剂时,使用石油醚溶剂。2. The preparation method of dodecylphenol according to claim 1, characterized in that: the catalyst includes Lewis acid, acidic resin and molecular sieve; when using Lewis acid catalyst, use petroleum ether solvent. 3、根据权利要求1所述的十二烷基酚的制备方法,其特征在于:所述的三聚异丁烯为异丁烯齐聚十二烯烃。3. The method for preparing dodecylphenol according to claim 1, characterized in that: said trimerized isobutene is isobutylene oligomerized dodecene. 4、根据权利要求1所述的十二烷基酚的制备方法,其特征在于:所述的后处理方法包括趁热将反应混合物进行抽滤,热水洗涤4-5次,减压蒸馏,抽真空度,在氮气保护下,抽滤,洗涤2-3次,减压蒸馏,避光贮存,得到十二烷基酚产品。4. The preparation method of dodecylphenol according to claim 1, characterized in that: the post-treatment method comprises suction filtration of the reaction mixture while hot, washing with hot water for 4-5 times, distillation under reduced pressure, Vacuum, under the protection of nitrogen, filter with suction, wash 2-3 times, distill under reduced pressure, store away from light to obtain dodecylphenol product.
CN200810222751A 2008-09-24 2008-09-24 Method for preparing dodecylphenol Pending CN101684066A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387238A (en) * 2014-10-27 2015-03-04 新乡市瑞丰化工有限责任公司 Preparation method of branched alkyl phenol
CN106732685A (en) * 2016-12-22 2017-05-31 常州大学 A kind of catalyst and preparation method for synthesizing dodecylphenol
CN107649170A (en) * 2017-09-30 2018-02-02 宝鸡文理学院 A kind of carried molecular sieve catalyst for synthesizing the DI-tert-butylphenol compounds of 4 methyl 2,6 and its application
CN108929198A (en) * 2018-08-07 2018-12-04 广东锦昱材料科技有限公司 A kind of side chain dodecyl benzen phenol produced using three polybutene as raw material
CN109776600A (en) * 2019-01-20 2019-05-21 南雄志一精细化工有限公司 A kind of environment protection liquid phosphite antioxidant
CN110551004A (en) * 2019-08-16 2019-12-10 广东新华粤石化集团股份公司 high-performance antioxidant and preparation method thereof
CN113651678A (en) * 2020-05-12 2021-11-16 中国石油化工股份有限公司 Method for synthesizing alkylphenol and application thereof
CN114456042A (en) * 2021-05-27 2022-05-10 广东新华粤石化集团股份公司 Preparation method of p-dodecylphenol

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104387238A (en) * 2014-10-27 2015-03-04 新乡市瑞丰化工有限责任公司 Preparation method of branched alkyl phenol
CN104387238B (en) * 2014-10-27 2016-05-11 新乡市瑞丰新材料股份有限公司 A kind of preparation method of branched alkyl phenol
CN106732685A (en) * 2016-12-22 2017-05-31 常州大学 A kind of catalyst and preparation method for synthesizing dodecylphenol
CN106732685B (en) * 2016-12-22 2019-07-26 常州大学 A kind of catalyst for synthesizing dodecyl phenol and preparation method
CN107649170A (en) * 2017-09-30 2018-02-02 宝鸡文理学院 A kind of carried molecular sieve catalyst for synthesizing the DI-tert-butylphenol compounds of 4 methyl 2,6 and its application
CN107649170B (en) * 2017-09-30 2020-02-21 宝鸡文理学院 A kind of supported molecular sieve catalyst for synthesizing 4-methyl-2,6-di-tert-butylphenol and its application
CN108929198A (en) * 2018-08-07 2018-12-04 广东锦昱材料科技有限公司 A kind of side chain dodecyl benzen phenol produced using three polybutene as raw material
CN109776600A (en) * 2019-01-20 2019-05-21 南雄志一精细化工有限公司 A kind of environment protection liquid phosphite antioxidant
CN110551004A (en) * 2019-08-16 2019-12-10 广东新华粤石化集团股份公司 high-performance antioxidant and preparation method thereof
CN113651678A (en) * 2020-05-12 2021-11-16 中国石油化工股份有限公司 Method for synthesizing alkylphenol and application thereof
CN114456042A (en) * 2021-05-27 2022-05-10 广东新华粤石化集团股份公司 Preparation method of p-dodecylphenol
CN114456042B (en) * 2021-05-27 2023-12-08 广东华锦达新材科技有限公司 Preparation method of p-dodecylphenol

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