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A kind of modified sol and its preparation method and application

A modification and sol technology, applied in sol preparation, chemical instruments and methods, colloid chemistry, etc., can solve the problem of low cracking activity, achieve the effect of improving activity and selectivity, improving coke selectivity, and improving stability

Active Publication Date: 2021-06-18
哈密市鲁江缘新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process significantly reduces the production cost of aluminum sol, and the bonding performance of aluminum sol is improved, and other performances are equivalent. However, the cracking activity of the aluminum sol prepared by this method is still not high as the catalyst prepared by the binder.

Method used

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  • A kind of modified sol and its preparation method and application
  • A kind of modified sol and its preparation method and application
  • A kind of modified sol and its preparation method and application

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preparation example Construction

[0040] The present invention also provides the preparation method of above-mentioned modified sol, comprises the following steps:

[0041] mixing the first metal compound, the second metal compound, water and an organic solvent, and then performing first stirring and mixing to obtain a first mixed liquid;

[0042] mixing the first mixed solution with the modified compound and then performing a second stirring and mixing to obtain a second mixed solution;

[0043] After mixing the second mixed solution with hydrogen chloride, the third stirring and mixing is carried out to obtain a modified sol.

[0044] In the present invention, the first metal compound, the second metal compound, water and the organic solvent are mixed and then first stirred and mixed to obtain the first mixed liquid.

[0045] In the present invention, the temperature of the first stirring and mixing is preferably 20-90°C, more preferably 30-60°C, most preferably 40-50°C; the time of the first stirring and m...

Embodiment 1

[0081] Mix 1613g of pseudo-boehmite and 1720g of deionized water for beating and disperse evenly; take 1895g of zirconium oxychloride ZrOCl 2 ·8H 2 0 and 261g ethanol, join in the above-mentioned slurry, stir at room temperature for 3h; then slowly add 984g phosphoric acid solution (98wt.%), continue to stir at room temperature for 1h, then add 397g hydrochloric acid solution (36wt.%), stir for 2h, obtain the improved Sex Sol A1. After analysis, in this modified sol, Al mass content is 7.8%, Zr content mass is 7.6%, Cl mass content is 2.0%, P mass mass is 3.8%, P / Al (mass ratio) 0.5, Al / Cl (mole ratio) 5.0, Zr / Al (molar ratio) 0.3.

Embodiment 2

[0083] Mix 1000g of zinc oxide and 3545g of deionized water for beating, and disperse evenly; take 394g of ferric chloride and 148g of n-hexane, add them to the above slurry, heat up to 40°C, and stir for 2h; then slowly add 392g of ammonium dihydrogen phosphate, 40 After stirring for 3 hours at °C, 496 g of hydrochloric acid solution (36 wt.%) was added, and stirring was continued for 3 hours to obtain modified sol A2. After analysis, Zn mass content is 8.6% in this modified sol, Fe content mass is 2.3%, Cl mass content is 2.8%, P mass mass is 1.7%, P / Al (mass ratio) 0.2, Zn / Cl (mole Ratio) 4.0, Fe / Zn (molar ratio) 0.2.

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Abstract

The invention provides a modified sol and its preparation method and application, which belong to the technical field of catalysts. The modified sol contains a first metal component, a second metal component and a modifying element; the first metal component is Al , one or more of Zn and Mg, the content is 5-14wt.%; the second metal component is one or more of Zr, Fe, Ti, Ga and Cr, the second metal component and the first The molar ratio of the first metal component is 0.01-0.5:1; the modifying element is one or more of P, Si, B, and the mass ratio of the modifying element to the first metal component is 0.05-1.1. In the present invention, the interaction between the first metal and the second metal is formed by introducing the second metal element, and at the same time, the modification element is introduced, which is beneficial to the improvement of the performance of the sol. The sol can be used for catalyst preparation to improve the activity and selectivity of the catalyst.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a modified sol and its preparation method and application. Background technique [0002] Sol generally refers to lyosol, and lyosol refers to organic or inorganic nano- or micron-sized particles formed through hydrolysis and polymerization. These particles are usually charged, and due to the effect of the charge, a layer of solvent molecules is adsorbed to form nano or micro particles coated by the solvent, that is, colloidal particles. These colloidal particles repel each other due to the charge, so that they can exist in a suspended state In a solvent, a sol is formed. [0003] Aluminum sol is a commonly used binder in the catalyst preparation process. At present, the aluminum sol binder is usually obtained by reacting metal aluminum with hydrochloric acid in industry. However, the cost of this method is high, and the activity of the prepared aluminum sol is low. Chinese p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00B01J29/08B01J29/14B01J35/10
CPCB01J13/0004B01J29/088B01J29/146B01J35/633B01J35/615
Inventor 石燕张小艳吴俊龙
Owner 哈密市鲁江缘新材料有限公司
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