Mica powder activation method

Abstract

The invention discloses a mica powder activation method. The mica powder activation method comprises the following steps that a mica powder raw material is screened, wherein mica powder is silicate ofa laminated structure, the structure is a compound silica layer formed by clamping a layer of aluminum-oxygen octahedrons between two layers of silica tetrahedrons, so that nonuniform grains in the mica powder are screened through a screening machine before activation is performed, the purity of the mica powder raw material is ensured, and follow-up activation is facilitated; the mica powder is subjected to pre-activation and flotation, wherein activating reaction is conducted on an oxidation layer on the surface of the screened mica powder through a first activating agent. The activating agent used in the method is a common inorganic material, no impurity is not introduced, the mica powder is calcined through two times of variable-temperature adjustment, jump from ground state level to higher energy level of electrons is activated, the temperature interval and an energy interval required for jump of the mica powder are similar, the raw material is subjected to screening, flotation and redrying, the impurities in the mica powder can be effectively removed, activation is performed after ball milling, an activation surface area is larger, and the activation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of mica powder, in particular to an activation method of mica powder. Background technique [0002] Mica powder is a non-metallic mineral containing various components, mainly SiO 2 , the content is generally around 49%, Al 2 o 3 With a content of about 30%, mica has good elasticity, toughness, insulation, high temperature resistance, acid and alkali resistance, corrosion resistance, and strong adhesion. It is an excellent additive. In addition, the chemical composition, structure, and structure of mica powder It is similar to kaolin, but also has certain characteristics of clay minerals, that is, good dispersion and suspension in aqueous media and organic solvents, fine white particles, stickiness, etc. Activation is also called excitation. Particles (such as atoms or ions) are obtained from the outside world. After sufficient energy, the electrons transition from a lower ground state energy level to a h...

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Problems solved by technology

[0003] In the existing activation methods, the activation process of minerals is too simple, and some mineral impurities in mica powder are not removed, which affects the properties of mica powder after activation, and mica powder has many characteristics superior to other minerals, such as whiteness, Gloss, but the activation efficiency is low during the activation process, which makes the characteristics of mica powder different, and the color and gloss are different.

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