Solid-liquid separation method of nanometer material

A nano-material, solid-liquid separation technology, applied in the direction of spray evaporation, crystalline aluminosilicate zeolite, borocarbane silicone crystalline aluminosilicate zeolite, etc., can solve problems such as complex technical process and achieve good technical effects

Active Publication Date: 2013-05-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is the problem of complicated technical process in the past, and a new method for solid-liquid separation of nanomaterials is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] According to the method for preparing ZSM-5 in document CN200810043303.6 [Example 1], 50 grams of slurry is obtained, and the pH value of the slurry is 13. Add 1.5 mol / liter of nitric acid solution, and the pH is 8, then add water, and finally the weight of ZSM-5 in the slurry is The content is 21%. Under stirring conditions, the slurry is pumped into the atomizing disc through the feed pipe, the atomizing disc rotates at 5000 rpm, the temperature of the hot air entering the tower body is 200°C, and the temperature of the hot air leading out of the tower body is 100°C. The material is solid with a grain size of 460 nm.

Embodiment 2

[0017] According to the method of preparing ZSM-11 in document CN201110045540.8 [Example 11], 50 grams of slurry was obtained, and the pH value of the slurry was 13. Add 1 mol / L citric acid solution, the pH was 8, and then add water, and finally ZSM-11 in the slurry The weight content is 15%. Under stirring conditions, the slurry is pumped into the atomizing disc through the feed pipe, the atomizing disc rotates at 10,000 rpm, the temperature of the hot air entering the tower body is 220°C, and the temperature of the hot air leading out of the tower body is 140°C. The material is solid with a grain size of 100 nm.

Embodiment 3

[0019] According to the method of document ZL00107486.5 [Example 1] to prepare β molecular sieves, 50 grams of slurry is obtained, and the pH value of the slurry is 13. Add 1 mol / liter of oxalic acid solution, the pH is 7, and then add water. Finally, the weight content of β molecular sieves in the slurry is twenty four%. Under stirring conditions, the slurry is pumped into the atomizing disc through the feed pipe, the atomizing disc rotates at 12000 rpm, the temperature of the hot air entering the tower body is 220°C, and the temperature of the hot air leading out of the tower body is 120°C. The material is solid with a grain size of 50 nm.

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PUM

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Abstract

The invention relates to a solid-liquid separation method of a nanometer material, mainly aiming at solving the problem that a filter process of the nanometer material in the prior art is complicated. According to the solid-liquid separation method provided by the invention, a nanometer solid material is obtained by carrying out spray drying on serous fluid containing the nanometer material, wherein the spray drying condition is that the rotation speed of an atomizing disk is 1,000-20,000 revolutions / minute, the temperature of the hot air entering a tower body of a spray drying tower is 100-300 DEG C, the technical scheme that the hot air outputs the temperature at 50-200 DEG C of the tower body of the spray drying tower can preferably solve the problem, and the solid-liquid separation method can be used for industry solid-liquid separation production of the nanometer material.

Description

technical field [0001] The invention relates to a method for solid-liquid separation of nanometer materials. Background technique [0002] Generally, materials with a particle size ranging from 1 to 100 nanometers are called nanomaterials. Due to their large specific surface area, "nano effect" usually occurs, and they have a wide range of applications. The ratio of the number of surface atoms of nano-molecular sieves to the total number of atoms in bulk increases sharply with the decrease of particle size, thus making nano-molecular sieves a new material with unique catalytic properties. Compared with large particle molecular sieves, nano molecular sieves have larger external specific surface area and higher intracrystalline diffusion rate, which can improve the utilization rate of catalysts, enhance the conversion capacity of macromolecules, reduce deep reaction, improve selectivity and reduce coking deactivation, etc. All aspects have shown superior performance, so they ...

Claims

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Application Information

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IPC IPC(8): B01D1/18C01B39/38C01B39/04C01B39/36
Inventor 金照生李亚男
Owner CHINA PETROLEUM & CHEM CORP
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