A kind of nanomaterial and preparation method thereof
A nanomaterial and silicon dioxide technology, applied in the nanometer field, can solve the problems of expensive preparation equipment, high finished product price, low yield, etc., and achieve the effects of superior fusion performance, low preparation cost, and good thermal stability.
Active Publication Date: 2021-08-24
萨博能源物联网科技(苏州)有限公司
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AI Technical Summary
Problems solved by technology
However, the preparation of fumed silica by combustion method has low purity, relatively low conversion rate, low yield, and expensive preparation equipment
Ultimately lead to high finished product prices
Method used
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Experimental program
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Effect test
Embodiment Construction
[0017] Below in conjunction with example the present invention is described further, but should not be interpreted as limiting the present invention.
[0018] The preparation method of the nanomaterial provided in this embodiment comprises the following steps:
[0019] S1: In the submerged arc furnace, the self-cultivated electrode is inserted into the furnace charge for submerged arc operation, continuous feeding, intermittent slag discharge, continuous operation reduction and smelting of quartz ore, after the quartz ore is heated to a molten state, the heating temperature range is 1550-1700 degrees; part Silica evaporates into the air in gaseous form, and the collected silica dusty air is sent into the reaction chamber; the submerged arc furnace, also known as electric arc furnace, mainly consists of furnace shell, furnace cover, furnace lining, short net Water cooling system, smoke exhaust system, dust removal system, electrode shell, electrode pressing and lifting system, ...
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Abstract
The invention discloses a nanometer material and a preparation method thereof, comprising the following steps: S1: After heating quartz ore to a molten state, silicon dioxide evaporates into the air in a gaseous state, and the collected silicon dioxide dust-containing air is sent to into the reaction chamber; S2: High-pressure delivery to the ion generator, the ionized air and silicon dioxide air in the ion generator are quickly mixed, and at the same time, the wild wind is introduced to cool the silicon dioxide air; S3: the cooled silicon dioxide-containing air After the electrostatic field, the silica particles form a chain-like bead string under the action of the charge, and collect the bead-string silica particles after filtration; S4: The collected silica bead string dust is reversely discharged to form a nano-scale Silicon oxide particles. The nanomaterials prepared by the present invention are nano-scale silica microspheres with a purity of more than 96%, a microporous structure, a particle diameter range of 8-40 nanometers, and a specific surface area of 75-150 nanometers; the preparation cost is low, and the prepared nanomaterials Good thermal stability; stable chemical properties.
Description
technical field [0001] The invention relates to the field of nanotechnology, in particular to a silicon dioxide nanometer material and a preparation method thereof. Background technique [0002] Fumed silica, commonly known as "nano silica", is widely used in various industries as additives, catalyst carriers, decolorizers, matting agents, rubber reinforcing agents, plastic fillers, ink thickeners, metal soft polishing agents, Insulation and heat insulation fillers, high-grade daily cosmetic fillers and spraying materials, medicine, environmental protection, petrochemical and other fields. It also provides a new material foundation and technical guarantee for the development of related industrial fields. Because it shows special functions compared with conventional materials in terms of magnetism, catalysis, light absorption, thermal resistance and melting point, it has attracted great attention. [0003] At present, the production of fumed white carbon black uses polysili...
Claims
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IPC IPC(8): C01B33/18B82Y30/00
CPCB82Y30/00C01B33/18C01P2004/64
Inventor 王建中汤乾朱林严峻卫
Owner 萨博能源物联网科技(苏州)有限公司