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Catalyst for preparing nonene and dodecene by oligomerization of propylene and preparation method thereof

A dodecene and catalyst technology, applied in the field of catalysts and their preparation, can solve the problems of being unable to meet the requirements of high-load and large-scale industrial applications, and that the strength and activity cannot meet the requirements of industrial applications at the same time, so as to improve the strength and increase the internal The effect of supporting, improving stability and longevity

Active Publication Date: 2020-09-15
SOUTHWEST RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the research is carried out in small laboratories, which cannot meet the requirements of high-load and large-scale industrial applications. In particular, the strength and activity of the catalyst after molding cannot meet the requirements of industrial applications at the same time. Therefore, it is urgent to develop high-strength, high-activity and long-life catalysts. Long Novel Propylene Oligomerization Catalyst

Method used

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  • Catalyst for preparing nonene and dodecene by oligomerization of propylene and preparation method thereof
  • Catalyst for preparing nonene and dodecene by oligomerization of propylene and preparation method thereof
  • Catalyst for preparing nonene and dodecene by oligomerization of propylene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. In parts by mass, dissolve 0.1 part of nickel nitrate in 1 part of deionized water, add 1 part of γ-Al 2 o 3 After the sphere was stirred and impregnated, it was dried at 120°C and calcined at 500°C for 4 hours to obtain the precursor of the modified catalyst;

[0024] 2. Stir and mix 10 parts of ammonia water, 5 parts of tetrabutylammonium bromide, and 200 parts of deionized water to obtain solution A;

[0025] 3. Stir and mix 1 part of aluminum sulfate and 200 parts of deionized water evenly, and add the catalyst precursor obtained in the above 1 at the same time, and obtain solution B after stirring for a period of time;

[0026] 4. Stir and mix solution A and solution B to obtain solution C;

[0027] 5. Slowly add 50 parts of silica sol (25%) solution to solution C to obtain sol-gel. At the same time, add dilute nitric acid solution or ammonia solution to the sol-gel to adjust the pH value to 9.0-11.0 to obtain solution D;

[0028] 6. Transfer the solution D t...

Embodiment 2

[0030] 1. In parts by mass, dissolve 0.05 part of lead chloride in 1 part of deionized water, add 1 part of γ-Al 2 o 3 The sphere was stirred and impregnated, dried at 120°C, and calcined at 500°C for 4 hours to obtain the precursor of the modified catalyst;

[0031] 2. Stir and mix 10 parts of ammonia water, 5 parts of tetrabutylammonium hydroxide, and 200 parts of deionized water to obtain solution A;

[0032] 3. Stir and mix 1 part of aluminum nitrate and 200 parts of deionized water evenly, and add the catalyst precursor obtained in the above 1 at the same time, and obtain solution B after stirring for a period of time;

[0033] 4. Stir and mix solution A and solution B to obtain solution C;

[0034] 5. Slowly add 100% tetraethyl orthosilicate solution to solution C to obtain sol-gel, and at the same time add dilute nitric acid solution or ammonia solution to the sol-gel to adjust the pH value to 9.0-11.0 to obtain solution D;

[0035] 6. Transfer the solution D to a hi...

Embodiment 3

[0037] 1. In parts by mass, dissolve 0.2 part of nickel nitrate in 1 part of deionized water, add 1 part of γ-Al 2 o 3 After the sphere was stirred and impregnated, it was dried at 120°C and calcined at 500°C for 4 hours to obtain the precursor of the modified catalyst;

[0038] 2. Stir and mix 10 parts of ammonia water, 5 parts of tetraethylammonium bromide, and 200 parts of deionized water to obtain solution A;

[0039] 3. Stir and mix 1 part of aluminum sulfate and 200 parts of deionized water evenly, and add the catalyst precursor obtained in the above 1 at the same time, and obtain solution B after stirring for a period of time;

[0040] 4. Stir and mix solution A and solution B to obtain solution C;

[0041]5. Slowly add 150 parts of silica sol (25%) solution to solution C to obtain sol-gel, and at the same time add dilute nitric acid solution or ammonia solution to the sol-gel to adjust the pH value to 9.0-11.0 to obtain solution D;

[0042] 6. Transfer the solution ...

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Abstract

The invention belongs to the field of chemical industry, and specifically relates to a catalyst for preparation of nonene and dodecene from sthylenediamine and a preparation method thereof. Accordingto the catalyst for the preparation of the nonene and the dodecene by the sthylenediamine and the preparation method thereof, a core-shell structure with an aluminium oxide wrapped by molecular sievesis formed by loading the molecular sieves on the periphery of an aluminium oxide carrier after active ingredients are loaded on the aluminium oxide carrier. On the premise of fully playing the catalytic performance of the molecular sieves, the strength of the catalyst is effectively improved and the pulverization of simple molecular sieves is avoided by adding internal support of the aluminium oxide carrier; the active ingredients are positioned in the molecular sieves, so that the loss of the active ingredients is not caused easily, the stability of the catalyst is improved, and the servicelife of the catalyst is prolonged; the molecular sieves and aluminium oxide spheres form a core-shell shape, and both the molecular sieves and the aluminium oxide which is loaded with the active ingredients have catalytic activity, so that a stepped catalytic action is achieved; the raw materials which do not react on the peripheries of the molecular sieves enter aluminium oxide molecular sieves for further reaction; the catalytic actions of the molecular sieves and the aluminium oxide which is loaded with the active ingredients are added, so that the activity and the selectivity are further improved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a catalyst for preparing nonene and dodecene by propylene oligomerization and a preparation method thereof. Background technique [0002] Oligomerization of propylene is an important aspect of comprehensive utilization of propylene. Nonene terpolymer can be used as an additive component of high-octane gasoline, and nonene can also be used to make nonylphenol, which is used to prepare agricultural emulsification Raw materials for detergents and detergents; propylene tetramer dodecene is also widely used, for example, sulfurized calcium dodecylphenate obtained through dodecene is a good lubricating oil additive. [0003] Catalyst preparation is the focus of propylene oligomerization research, and it is also an important factor affecting the promotion of propylene oligomerization technology. The catalysts currently used for propylene oligomerization mainly include solid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/00B01J23/755B01J23/14B01J23/10C07C11/02C07C2/12
Inventor 艾珍朱林韩伟潘相米吴砚会
Owner SOUTHWEST RES & DESIGN INST OF CHEM IND
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