Spherical attapulgite mesoporous composite carrier, supported catalyst, preparation methods of spherical attapulgite mesoporous composite carrier and supported catalyst, use of supported catalyst and preparation method of ethyl acetate

A technology of composite carrier and attapulgite, which is applied in the preparation of organic compounds, organic compound/hydride/coordination complex catalysts, catalyst carriers, etc., can solve the problem of low conversion rate of reaction raw materials, and reduce production costs. Does not corrode equipment and has less side effects

Active Publication Date: 2014-12-31
CHINA PETROLEUM & CHEM CORP +1
View PDF4 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the supported catalyst made of existing mesoporous molecular sieve material is used for the low conversion rate of reaction raw materials in the process of esterification, and to provide a spherical attapulgite mesoporous composite carrier, a A preparation method of a sph

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spherical attapulgite mesoporous composite carrier, supported catalyst, preparation methods of spherical attapulgite mesoporous composite carrier and supported catalyst, use of supported catalyst and preparation method of ethyl acetate
  • Spherical attapulgite mesoporous composite carrier, supported catalyst, preparation methods of spherical attapulgite mesoporous composite carrier and supported catalyst, use of supported catalyst and preparation method of ethyl acetate
  • Spherical attapulgite mesoporous composite carrier, supported catalyst, preparation methods of spherical attapulgite mesoporous composite carrier and supported catalyst, use of supported catalyst and preparation method of ethyl acetate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] The present invention also provides a method for preparing the spherical attapulgite mesoporous composite carrier, which includes the following steps:

[0036] (1) In the presence of a template agent and butanol, contact ethyl orthosilicate with an acid agent, and crystallize and filter the contacted product to obtain a mesoporous molecular sieve material with a three-dimensional cubic pore structure. Cake

[0037] (2) Contact water glass with inorganic acid, and filter the product obtained after contact to obtain silica gel filter cake;

[0038] (3) Mixing the filter cake of the mesoporous molecular sieve material with three-dimensional cubic pore structure, the silica gel filter cake and attapulgite uniformly and ball milling, and the solid powder obtained after ball milling is slurried with water and then spray dried, The templating agent in the product obtained after spray drying is removed.

[0039] In the preparation process of the spherical attapulgite mesoporous compos...

Example Embodiment

[0075] Example 1

[0076] This example is used to illustrate the spherical attapulgite mesoporous composite carrier and the supported benzenesulfonic acid catalyst provided by the present invention and the preparation method thereof.

[0077] (1) Preparation of spherical attapulgite mesoporous composite carrier

[0078] Dissolve 6g (0.001mol) triblock copolymer polyethylene glycol-polyglycerol-polyethylene glycol (P123) in 10mL, pH 4 hydrochloric acid aqueous solution and 220mL deionized aqueous solution, stir for 4h until P123 dissolves , Form a transparent solution, and then add 6g (0.08mol) n-butanol to the transparent solution and stir for 1h, then place the solution in a water bath at 40°C, and slowly drop 12.9g (0.062mol) ethyl orthosilicate Add to this solution, keep the temperature at 40℃, and stir for 24h under the condition of pH 4.5, then hydrothermally heat at 100℃ for 24h, then filter and wash with deionized water 4 times, and then suction filter to obtain Mesoporous m...

Example Embodiment

[0102] Example 2

[0103] This example is used to illustrate the spherical attapulgite mesoporous composite carrier and the supported benzenesulfonic acid catalyst provided by the present invention and the preparation method thereof.

[0104] (1) Preparation of spherical attapulgite mesoporous composite carrier

[0105] Dissolve 6 g (0.001 mol) of the triblock copolymer P123 in 10 mL of a hydrochloric acid aqueous solution with a pH of 5 and 220 mL of a deionized aqueous solution, stir for 4 hours until P123 is dissolved to form a transparent solution, and then add 4.5 g to the solution (0.06mol) n-butanol was stirred for 1h, then the solution was placed in a 60℃ water bath, 10.4g (0.05mol) ethyl orthosilicate was slowly added dropwise to the solution, and the temperature was maintained at 60℃, pH Stir for 48h under the condition of 5.5, and then hydrothermally heat at 80℃ for 20h, filter and wash with deionized water 4 times, and then suction filter to obtain a mesoporous molecular...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Diameteraaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to view more

Abstract

The invention discloses a spherical attapulgite mesoporous composite carrier and its preparation method, a supported benzenesulfonic acid catalyst and its preparation method, a use of the supported benzenesulfonic acid catalyst in an esterification reaction, and a preparation method of ethyl acetate. The spherical attapulgite mesoporous composite carrier contains attapulgite and a mesoporous molecular sieve material having a three-dimensional tunnel structure. The spherical attapulgite mesoporous composite carrier has the average particle size of 20-50 microns, a specific surface area of 150-600 m<2>/g and a pore volume of 0.5-1.5ml/g, and has a bimodal pore diameter distribution mode and most probable pore diameters of 2-10nm and 20-40nm corresponding to two peaks. The supported benzenesulfonic acid catalyst has high catalytic activity and can be recycled.

Description

technical field [0001] The invention relates to a spherical attapulgite mesoporous composite carrier, a preparation method of a spherical attapulgite mesoporous composite carrier, a spherical attapulgite mesoporous composite carrier prepared by the method, and a loaded benzenesulfonic acid Catalyst, a preparation method of a loaded benzenesulfonic acid catalyst, an application of the loaded benzenesulfonic acid catalyst in esterification and a preparation method of ethyl acetate. Background technique [0002] Attapulgite clay (abbreviated as attapulgite) is a hydrous magnesium-rich aluminum silicate crystal mineral. Its basic structural unit is a unit layer composed of two layers of silicon-oxygen tetrahedron sandwiching a layer of magnesium-oxygen octahedron. In each 2: In layer 1, the corners of the tetrahedral sheets are reversed at a certain distance to form a layer chain structure, and channels parallel to the c-axis direction are formed between the tetrahedral strips, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J32/00B01J35/08B01J31/26C07C69/14C07C67/08
Inventor 亢宇张明森王洪涛
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap