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Strong-acid high-temperature resistant cationic resin catalyst and preparation method thereof

A cationic resin and high-temperature-resistant technology, which is applied in the direction of catalyst activation/preparation, carboxylate preparation, chemical instruments and methods, etc. It can solve the problems of difficult to meet technical needs, limited application range, unbalanced balance between catalytic activity and temperature resistance, etc. problems, achieving both catalytic activity and high temperature resistance, improved electron distribution, and excellent thermal stability

Active Publication Date: 2018-01-05
丹东明珠特种树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the existing strong-acid cation exchange resins cannot balance both catalytic activity and temperature resistance, and it is difficult to meet the technical needs, and the practical application range is greatly limited.

Method used

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  • Strong-acid high-temperature resistant cationic resin catalyst and preparation method thereof
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1——preparation of catalyst C-1

[0019] ①. Suspension polymerization: add the water phase to the stainless steel stirred tank with a condensing reflux device, add the oil phase when the temperature rises to 60°C, continue to heat up to 80°C during stirring, and react for 8 hours, and the stirring speed is 80 rpm;

[0020] Wherein, by weight, the water phase is a mixture of 20 parts of disodium lauryl sulfosuccinate monoester, 20 parts of potassium monododecyl phosphate and 4000 parts of water; the oil phase is a mixture of 500 parts of styrene parts, 1000 parts of divinylbenzene and 30 parts of benzoyl peroxide;

[0021] ②. Stable structure

[0022] Soak the polymerized white balls obtained in step ① in a solvent, stir and soak for 10 hours at a stirring speed of 80 rpm, then raise the temperature to 80°C and keep it constant for 5 hours, wherein the solvents are n-hexane, n-octane and one of cyclohexane;

[0023] ③.Halogenation

[0024] Soak the resin wh...

Embodiment 2

[0030] Embodiment 2——preparation of catalyst C-2

[0031] ①. Suspension polymerization: Add the water phase to the stainless steel stirred tank with condensing reflux device, add the oil phase when the temperature rises to 70°C, continue to heat up to 90°C during stirring, and react for 10 hours, and the stirring speed is 100 rpm;

[0032] Wherein, by weight, the water phase is a mixture of 50 parts of disodium lauryl sulfosuccinate monoester, 30 parts of potassium monododecyl phosphate and 4200 parts of water; the oil phase is a mixture of 800 parts of styrene 700 parts of divinylbenzene and 30 parts of benzoyl peroxide;

[0033] ②. Stable structure

[0034] Soak the polymerized white balls obtained in step ① in a solvent, stir and soak for 11 hours, the stirring speed is 110 rpm, then raise the temperature to 90°C, and keep it constant for 6 hours, wherein the solvent is n-hexane, n-octane and one of cyclohexane;

[0035] ③. Halogenation

[0036] Immerse the resin white ...

Embodiment 3

[0042] Embodiment 3——preparation of catalyst C-3

[0043] ①. Suspension polymerization: Add the water phase to the stainless steel stirred tank with a condensing reflux device, add the oil phase when the temperature rises to 65°C, continue to heat up to 80°C during stirring, and react for 9 hours, and the stirring speed is 120 rpm;

[0044] Wherein, by weight, the water phase is a mixture of 50 parts of disodium lauryl sulfosuccinate monoester, 40 parts of potassium monododecyl phosphate and 4500 parts of water; the oil phase is 500 parts of styrene parts, 1000 parts of divinylbenzene and 30 parts of benzoyl peroxide;

[0045] ②. Stable structure

[0046] Soak the polymerized white balls obtained in step ① in a solvent, stir and soak for 10 hours at a stirring speed of 100 rpm, then raise the temperature to 90°C and keep it constant for 6 hours, wherein the solvents are n-hexane, n-octane and one of cyclohexane;

[0047] ③.Halogenation

[0048] Immerse the resin white ball...

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Abstract

The invention provides a strong-acid high-temperature resistant cationic resin catalyst and a preparation method thereof. The strong-acid high-temperature resistant cationic resin catalyst is preparedfrom styrene and divinyl benzene through suspension polymerization, and is prepared by using a preparation method of structure stabilization, halogenation, sulfonation and active group stabilizationafter suspension polymerization, wherein the water phase of the catalyst is a mixture of lauryl sulfonated succinic acid monoester disodium, lauryl alcohol phosphoric acid ester potassium and water; and the oil phase of the catalyst is a mixture of styrene, divinyl benzene and benzoyl peroxide. The catalyst prepared by using the preparation method is high in both catalysis activity and high temperature resistance, is particularly applied to a sec-butyl acetate synthesis reaction and is excellent in thermal stability, and the total conversion rate of the catalyst is up to 90% or higher.

Description

technical field [0001] The patent application relates to a resin catalyst and a preparation method thereof, in particular to a strong acid cation exchange resin catalyst and a preparation method thereof. Background technique [0002] In the past 20 years, strong-acid cation exchange resins have been used to replace homogeneous catalysts such as sulfuric acid, and have been widely used in petrochemical, fine chemical and pharmaceutical industries. Catalyst for the reaction. At present, this kind of resin catalyst is mainly divided into two categories according to the temperature resistance performance: one is the normal temperature type resin catalyst, and the other is the temperature resistance type resin catalyst. The normal temperature resin catalyst has the characteristics of high catalytic activity and general thermal stability. The nominal temperature resistance of its product is 120°C, but in actual industrial production, the catalytic reaction time at 90°C is only 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/10B01J37/03B01J37/24B01J37/10B01J35/10C07C69/14C07C67/04
Inventor 吕晓东王义成冷东斌张伟彭慧敏吴万春
Owner 丹东明珠特种树脂有限公司
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