Pure-blonde pearlescent pigment prepared from solid wastes produced in mica powder purification process

A pearlescent pigment and mica powder technology, applied in the field of pearlescent pigments, can solve the problems of high production cost of pearlescent pigments, increased environmental processing pressure, etc., and achieve the effects of reducing the cost of raw materials for production, excellent pigment brightness and simple structure.

Inactive Publication Date: 2018-07-27
JIANGSU BEILIDE NOVEL MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Treating the tailings containing so much mica powder as solid waste will undoubtedly increase the production cost of pearlescent pigments with

Method used

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  • Pure-blonde pearlescent pigment prepared from solid wastes produced in mica powder purification process

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Embodiment Construction

[0012] like figure 1 As shown, the present invention discloses a pure golden pearlescent pigment produced by using the solid waste produced in the process of purifying mica powder, including making the solid waste produced in the process of purifying mica powder into a mica powder base and coating the mica powder The composite layer on the base surface, the thickness of the mica powder base is 0.6-2 microns, the particle size range is 5-70 microns, D50=25±2 microns, the first layer of the composite layer is tin oxide, and the second layer is Titanium oxide, the third layer is iron oxide, the fourth layer is aluminum oxide, and the fifth layer is titanium oxide. The coating rate of the first layer of the composite layer is 0.5-2.5%, and the coating rate of the second layer of the composite layer is 30-40%, the coverage rate of the third layer of the composite layer is 1-4%, the coverage rate of the fourth layer of the composite layer is 0.5-2.5%, and the coverage rate of the fi...

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Abstract

The invention discloses pure-blonde pearlescent pigment prepared from solid wastes produced in a mica powder purification process. The pure-blonde pearlescent pigment comprises a mica powder substrateprepared from solid wastes produced in the mica powder purification process and a composite layer covering the surface of the mica powder substrate, and the pure-blonde pearlescent pigment is characterized in that the thickness of the mica powder substrate is 0.6 to 2 micrometers, the particle size range is 5 to 70 micrometers, D50 is equal to 25 plus or minus 2 micrometers, a first layer of thecomposite layer is tin oxide, a second layer is titanium oxide, a third layer is ferric oxide, a fourth layer is aluminum oxide, and a fifth layer is titanium oxide. The pure-blonde pearlescent pigment is simple in structure and convenient in operation. The solid wastes produced in the mica powder purification process are used for preparing the pure-blonde pearlescent pigment, so that the production raw material cost of the pure-blonde pearlescent pigment is reduced, the pressure for processing tailings used as the solid wastes can be alleviated, the product is relatively good in blonde purity, high in blonde saturation, excellent in brightness, and good in dispersity, weather resistance and chemical stability when in use.

Description

technical field [0001] The invention relates to a pearlescent pigment, in particular to a pure gold pearlescent pigment produced by using solid waste produced in the process of purifying mica powder. Background technique [0002] Pearlescent pigments are composed of thin layers of several metal oxides coated with mica. Different pearlescent effects can be produced by changing the thin layer of metal oxide. Therefore, when making pearlescent pigments, the thickness and cleanliness of mica are high. At present, most of the mica used in pearlescent pigments is natural mica, and natural mica is born in granite, orthoclase, pegmatite, gneiss and schist. And it often coexists with quartz, feldspar, turquoise, lithium limestone, fluorspar and apatite. In the process of grinding and processing mica ore into mica powder suitable for pearlescent pigments, the primary effective utilization rate is only 45%, and a large amount of tailings are likely to be generated in the production p...

Claims

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Application Information

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IPC IPC(8): C09C1/40C09C3/06
CPCC09C1/0015C09C3/063C09C2200/102C09C2200/301
Inventor 余青
Owner JIANGSU BEILIDE NOVEL MATERIALS
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