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Preparation method for synthesizing sheet-type cladding material by fluidized bed gas-phase method

A coating material and sheet-like material technology, which is applied in the field of preparation of sheet-like coating materials synthesized by a fluidized bed gas phase method, can solve the problems that the fluidized gas cannot be fully recycled and the process requirements are high, and achieve high repeatability. , the operation steps are simple, the effect of improving or changing the dispersion

Active Publication Date: 2015-05-20
SHANXI LANHUA HUAMING NANO MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the process requirements of fluidized bed are high, and the fluidization gas used in many fluidized bed devices has not been fully recycled, and there are very few devices that can be combined with other preparation technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a. Weigh 450 g of flaky mica (conical or cylindrical) with an average particle size of 30 μm and an aspect ratio of 31, and place it in the cavity of the fluidized bed reactor through the feeding port at the upper end of the fluidized bed reactor bottom;

[0029] b. Turn on the vacuum pump to evacuate the chamber of the fluidized bed reactor, inject fluidizing gas nitrogen from the inlet of the fluidizing gas, determine the flow rate through the pressure gauge, turn on the gas circulation pump to circulate the fluidizing gas, and adjust the fluidizing gas Airflow at 3.0 m 3 / h, so that the flake mica is in suspension;

[0030] c. Adjust the temperature of the heating furnace body to 550°C so that the reactor cavity is at a stable temperature;

[0031] d. The liquid orthosilicate is sucked into the liquid vaporizer from the liquid storage tank through the liquid sampling pump, and after being vaporized at 170°C, it is passed into the cavity of the fluidized bed reactor...

Embodiment 2

[0036] a. Take by weighing 450 g of flake mica with an average particle diameter of 30 μm, and place it at the bottom of the fluidized bed reactor chamber through the feed port at the upper end of the reactor;

[0037] b. Turn on the vacuum pump to evacuate the chamber of the fluidized bed reactor, inject the fluidizing gas nitrogen from the inlet of the fluidizing gas, determine the flow rate through the pressure gauge, turn on the circulating pump to circulate the fluidizing gas, and adjust the flow of the fluidizing gas 3.0 m in size 3 / h, make the flake mica in suspension;

[0038] c. Adjust the temperature of the heating furnace body to 525°C, so that the reactor cavity is at a stable temperature;

[0039] d. The liquid tetrabutyl titanate is sucked into the liquid vaporizer from the liquid storage tank through the liquid sampling pump, and after being vaporized at 315°C, it is passed into the fluidized bed reactor at a rate of 0.3 g / min;

[0040] e. Under the action of...

Embodiment 3

[0044] a. Take by weighing 450 g of flake mica with an average particle diameter of 30 μm, and place it at the bottom of the fluidized bed reactor chamber through the feed port at the upper end of the reactor;

[0045] b. Turn on the vacuum pump to evacuate the chamber of the fluidized bed reactor, inject fluidizing gas nitrogen from the inlet of the fluidizing gas, determine the flow rate through the pressure gauge, turn on the circulating pump to circulate the fluidizing gas, and adjust the flow of the fluidizing gas 3.6 m in size 3 / h, so that the flake mica is in suspension;

[0046] c. Adjust the temperature of the heating furnace body to 350°C, so that the reactor cavity is at a stable temperature;

[0047] d. The toluene solution of triisobutylaluminum with a mass fraction of 25% is sucked from the liquid storage tank 1 into the liquid vaporizer 1 through the liquid sampling pump, and passed into the fluidized bed at a rate of 2.6 g / min after gasification treatment at ...

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Abstract

The invention discloses a preparation method for synthesizing a sheet-type cladding material by a fluidized bed gas-phase method. According to the method, a sheet-type material is used as a matrix material, one or two of volatilizable metal or non-metal organic substances, such as titanium tetrabutoxide, isopropyl titanate, tetra(dimethylamino) titanium, tetra(dimethylamino) titanium, tetraethylortho silicate, 1,2-dimethyl silicon oxide, dichlorosilane, triisobutyl aluminium, carbonyl iron and chromium carbonyl, is or are used as a cladding raw material, and nitrogen, air, argon, helium or carbon dioxide is used as fluidizing gas, so that the sheet-type cladding material is prepared by pyrolysis through a fluidized bed. Metal oxide particles cladding the surface of sheet-type mica by the method can reach the nano level, are compact and uniform and have a wide application prospect in the aspects of decoration, catalysis, photocatalysis, batteries, gas storage and separation. The whole preparation process is executed in a closed container; the cladding raw material is recyclable, so that the preparation method is environmentally friendly, energy-saving and pollution-free; furthermore, the conversion rate o reactants is increased.

Description

technical field [0001] The invention relates to a method for preparing a sheet-shaped coating material, in particular to a preparation method for synthesizing a sheet-shaped coating material by a fluidized bed gas phase method. Background technique [0002] The sheet-like coating material is a nanoscale ordered assembly structure formed by covering another nano-material with a micro-nano sheet-like material through chemical bonds or other forces. This sheet cladding material belongs to the core-shell structure material, because of its unique internal and external structural characteristics, it integrates the properties of the two materials and complements each other's deficiencies. Through the surface coating treatment of sheet materials, the dispersion, surface activity and compatibility of micro-nano particles can be improved or changed, and new physical and chemical functions can be produced at the same time. It has broad application prospects in catalysis, photocatalysi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/40C09C3/06C09C3/08C08L21/00C08K9/02C08K3/34
CPCY02P20/10
Inventor 钱庆荣吴楠陈庆华肖荔人黄宝铨许兢刘欣萍袁占辉
Owner SHANXI LANHUA HUAMING NANO MATERIALS
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