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Air bubble liquid membrane method for producing nanometer granule material

A technology of nanoparticles and bubbles, which is applied in chemical methods, chemical instruments and methods, chemical/physical/physicochemical processes, etc. to make liquids react with liquids, and can solve environmental pollution, in-situ surface modification, and equipment costs advanced questions

Active Publication Date: 2006-07-19
LANZHOU LANSHI ZHONGKE NANOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still high equipment costs, and it is difficult to achieve in-situ surface modification; the product is powder, which is not easy to filter and wash; the dried product is powder, which is easy to fly and pollute the environment.

Method used

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  • Air bubble liquid membrane method for producing nanometer granule material

Examples

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Comparison scheme
Effect test

example 1

[0080] Start the bubble-cap disc stirrer, introduce gas, and mix the MgCl with a concentration of 2mol 2 -6H 2 O aqueous solution, at a speed of 1L / min, a NaOH aqueous solution with a concentration of 4mol, at a speed of 1L / min, a sodium oleate aqueous solution with a concentration of 0.2mol, at a speed of 0.5L / min, at 20-50°C, use The metering pump is fed into the continuous bubble liquid film reactor in parallel, and the foamy reaction product flows out. After filtering, washing and drying, the nano-Mg with a particle size of 30nm-50nm and a surface modified by oleic acid radicals is obtained. (OH) 2 Capsule particle loose block.

example 2

[0082] Start the bubble-cap disc stirrer, introduce gas, and mix the MgCl with a concentration of 0.3mol 2 -6H 2 O aqueous solution, at a speed of 1L / min, a NaOH aqueous solution with a concentration of 0.6mol, at a speed of 1L / min, a sodium oleate aqueous solution with a concentration of 0.03mol, at a speed of 0.5L / min, at 20-50°C, respectively A metering pump is used to co-flow into the continuous bubble liquid film reactor, and the foamy reaction product flows out. After filtering, washing and drying, the obtained particle size is 30nm-50nm, and the surface is modified by oleate. Oh) 2 Capsule particle loose block.

example 3

[0084] Start the bubble-cap disc stirrer, introduce gas, and mix the MgCl with a concentration of 2mol 2 -6H 2 O aqueous solution, at the speed of 1L / min, the concentration of 4mol NaOH aqueous solution, at the speed of 1L / min, the concentration of 0.2mol sodium stearate aqueous solution, at the speed of 0.5L / min, at 20-60°C, respectively Add it into the continuous bubble liquid film reactor in parallel flow with a metering pump, and the foamy reaction product flows out. After filtering, washing and drying, the nano-Mg with a particle size of 30nm-80nm and a surface modified by stearate is obtained. (OH) 2 Capsule particle loose block.

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Abstract

The invention discloses a bubble film method of nanometer particle material in the chemical nanometer material manufacturing industry, which comprises the following steps: adapting bubble film reactor with bubble lid disk-typed stirrer to generate bubble; dividing the whole reacting liquid into film through bubble to form nanometer reacting environment; taking the soluble salt, oxide or hydroxide of IIA-race, IIIB-race, 13th and 22-32nd element as raw material; regarding NaOH, NH3-H2O, NH3, Ca(OH)2 or CO2 as sedimenter; making the sulfonate, sulfate, phosphate, titanate, silicate or these resin acid salt with at least one OH in the center, S, P, Ti and Si as surface modified coating agent; reacting the reactor in the film to generate nanometer particle and nanometer capsule particle; adsorbing enough quantity gas on the particle surface to form gas-phase boundary; inhibiting the agglomeration among particles from forming hydrogen bonding bridge; generating the foam-typed product; separating; cleaning; drying; producing nanometer particle, nanometer capsule particle loose block or powder.

Description

【Technical field】 [0001] The invention relates to a bubble liquid film method for manufacturing nano particle materials, which belongs to the chemical nano material manufacturing industry. 【Background technique】 [0002] Nanomaterials are an important part of nanoscience and technology. Nanoparticles are the basic unit of nanomaterials, the basic object of nanoscience and technology research, and the entity of nanomaterials application. Nanoparticles with a size in the range of 1nm-100nm have small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect. Nanomaterials are applied to fields such as plastics, rubber, coatings, fibers, paints, and cosmetics through the properties of nanoparticles to create wealth. Therefore, the preparation of nanoparticles has become an important link in nanotechnology. [0003] Due to various effects of nanoparticles, large excess free energy accumulates on their surface. Agglomeration can be achieved by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J14/00B01J19/00
Inventor 杨第伦李宗葆
Owner LANZHOU LANSHI ZHONGKE NANOTECHNOLOGY CO LTD
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