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Preparation method for ultra-micropore nanometer SiO2

An ultra-microporous and nano-technology, which is applied in the field of ultra-microporous nano-SiO2 preparation, can solve the problems of large water consumption, gas fuel energy, slow reaction speed, and large footprint, and achieve excellent activity and adsorption High efficiency, short production cycle, and reduced investment in equipment costs

Inactive Publication Date: 2017-01-11
汪承源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the equipment cost of this inventive method is too high, the floor area is large, the reaction speed is slow, and a large amount of water resources and gas fuel energy are consumed, and the combustion of gas will produce a large amount of carbon dioxide, causing the greenhouse effect, and only 50% of the nano-scale materials in the product

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  • Preparation method for ultra-micropore nanometer SiO2
  • Preparation method for ultra-micropore nanometer SiO2

Examples

Experimental program
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Embodiment 1

[0027] Embodiment 1, in conjunction with attached figure 1 , an ultramicroporous nano-SiO 2 method, including the following steps:

[0028] a) 10,000 liters of 20% mineral acid solution was put into 15,000 liters of silica sol containing 40% silicon dioxide, and stirred until the silica sol was evenly dispersed in the mineral acid solution to obtain a sol solution;

[0029] b) The sol solution is put into a microchannel reactor, and 40% sodium silicate solution and 28% inorganic acid solution are passed into the microchannel reactor, and the heating and temperature control of the above microchannel reactor is adjusted to 100° C. microchannel reaction;

[0030] c) After the reaction of the microchannel is complete, the material is evenly discharged and transported to the high-temperature spray drying tower in the form of rotary spraying for splitting and drying. At this time, the above-mentioned microchannel reaction product is atomized and then split and dried by high-temper...

Embodiment 2

[0033] Embodiment 2, in conjunction with attached figure 1 , an ultramicroporous nano-SiO 2 method, including the following steps:

[0034] a) Put 10,000 liters of 18% inorganic acid solution into 15,000 liters of silica sol containing 45% silicon dioxide, and stir until the silica sol is evenly dispersed in the inorganic acid solution to obtain a sol solution;

[0035] b) The sol solution is put into a microchannel reactor, and 45% sodium silicate solution and 25% inorganic acid solution are passed into the microchannel reactor, and the heating and temperature control of the above microchannel reactor is adjusted to 110° C. microchannel reaction;

[0036] c) After the reaction of the microchannel is complete, the material is evenly discharged and transported to the high-temperature spray drying tower in the form of rotary spraying for splitting and drying. At this time, the above-mentioned microchannel reaction product is atomized and then split and dried by high-temperatur...

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Abstract

The invention discloses a preparation method for ultra-micropore nanometer SiO2, belonging to the preparing field of nanometer material. The prepared method includes preparing sol, stirring and obtaining sol, micro-channel reaction, spray-drying, classifying and packing to obtain ultra-micropore nanometer SiO2. The present invention lowers production cost, saves resources and energy, protects environment, and increases product quality. The present invention provides a preparation method for ultra-micropore nanometer SiO2 with simpler process, with cheaper production cost, having superior activity and absorption rate, with good dispersiveness, larger than the surface area, with many inner pores, and of wider applications. The final result of the provided products far exceeds national and international standard; it is one of the best ultra-micropore nanometer SiO2 product in the world.

Description

technical field [0001] The invention relates to the field of nanomaterial preparation, in particular to an ultra-microporous nano-SiO 2 method of making. Background technique [0002] The famous scientist Qian Xuesen once predicted: "Nanotechnology is the focus of development in the 21st century, it will be a technological revolution, and it will also be an industrial revolution." Since the beginning of the last century, nanomaterials, a forward-looking, strategic, and basic science, has attracted widespread attention and attention from many scholars, experts, scientists, entrepreneurs, and high-level leaders from all over the world. In the 1980s, my country included nanoscience in the National 863 Program and the National Natural Science Foundation of China, investing hundreds of millions of yuan in project research, but there is a big gap between my country's nanotechnology and Europe and the United States. Various data show that people are amazed at the magic of nanomat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/18
CPCC01B33/186C01P2006/12C01P2004/61C01P2004/62C01P2004/64C01B33/18C01B33/146C01P2006/16C01B33/193C01P2006/80C01P2006/90
Inventor 汪承源
Owner 汪承源