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Method of producing oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and device for the method

A production device and inorganic membrane technology, applied in fibrous filler, dyeing low molecular organic compound treatment, dyeing physical treatment, etc. consumption, increased recovery costs, and shortened process flow

Inactive Publication Date: 2014-10-29
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to provide a new production device and method for oil-type aluminum powder pigments, which can overcome the defects of solvent oil separation and purification not carried out at the same time, cumbersome process, high energy consumption and high production cost in current wet production

Method used

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  • Method of producing oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and device for the method
  • Method of producing oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and device for the method
  • Method of producing oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and device for the method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The raw material is atomized aluminum powder, the solvent oil is No. 200 solvent gasoline, the grinding aids are stearic acid, oleic acid and linolenic acid, and the grinding medium is steel balls. After sieving, the slurry aluminum powder pigment enters the built-in inorganic membrane separator for processing, using a ceramic membrane with a pore size of 800nm, 19 channels, the inner diameter of the channel is 6mm, the membrane material is aluminum oxide, and the rotation speed of the filter cartridge is 60rpm, the vacuum degree of negative pressure suction is 8×10 2 Pa, the membrane flux is 0.4m 3 m -2 h -1 , the experiment was carried out for 5 hours without backflushing the inorganic membrane filter tube, the purified solvent oil was clear and transparent, SS was not detected, the purified solvent oil fully met the requirements of returning to the grinder for continued use, and there was no loss of ultra-fine aluminum powder. After polishing the paste-state alumi...

Embodiment 2

[0042] The raw material is aluminum foil, the solvent oil is kerosene, the grinding aids are oleic acid, palmitic acid and linolenic acid, and the grinding medium is steel balls. After sieving, the slurry aluminum powder pigment enters the built-in inorganic membrane separator for processing, using a ceramic membrane with a pore size of 500nm, 7 channels, and the inner diameter of the channel is 4mm. The material of the membrane is aluminum oxide, and the rotation speed of the filter cartridge is 50rpm. The vacuum degree of negative pressure suction is 1.2×10 3 Pa, membrane permeation flux is 0.3m 3 m -2 h -1 , the experiment was carried out for 6 hours without backflushing the membrane, the purified solvent oil was clear and transparent, SS was not detected, the purified solvent oil fully met the requirements of returning to the grinder for continued use, and there was no loss of ultra-fine aluminum powder. Polish the paste-state aluminum powder pigment after desolvent oil...

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Abstract

The invention belongs to the technical field of pigment preparation, and particularly relates to a method of producing an oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and a device for the method. The production device comprises a grinding device, a sieving device and a separating device, wherein the sieving device and the separating device are connected after the grinding device in sequence. The separating device is a built-in type inorganic membrane separator. The inorganic membrane separator with a special structure is adopted to perform solid-liquid separation, thus achieving simultaneous performing of separation and purification of solvent oil, guaranteeing the product quality, simplifying processes at present, largely reducing the energy consumption in processes and saving the production cost.

Description

technical field [0001] The invention belongs to the technical field of pigment preparation, and in particular relates to a method and a device for producing an oil-type aluminum powder pigment by inorganic membrane filtration. Background technique [0002] Aluminum powder pigment is made of aluminum powder with light color and high metallic luster. The surface of the pigment is smooth and clean, which can effectively reflect visible light, infrared rays and ultraviolet rays. It has good weather resistance and can reduce the penetration of water vapor, oxygen and other corrosive media. The covering plays the role of heat preservation, anti-light and anti-corrosion, and at the same time can give it a gorgeous appearance. It is widely used in the fields of automobiles, building materials, house decoration, paint, printing ink, equipment and household appliances. [0003] The early production method of aluminum powder and pigment is the punching method, put the aluminum chips in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/64C09C3/04C09C3/08
Inventor 曾坚贤张金斌周虎刘和秀钱朝辉张学俊王亚赛孔令枚
Owner HUNAN UNIV OF SCI & TECH
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