阅读说明：本技术 一种高纯度绢云母的制备工艺 (Preparation process of high-purity sericite ) 是由 董善文 于 2021-01-26 设计创作，主要内容包括：本发明公开了一种高纯度绢云母的制备工艺,包括以下步骤：S1,选料,挑选大小合适的绢云母粗料；S2,碎料,将挑选的粗料进行粉碎,再对粉碎的细料进行球磨粉碎得到粉料；S3,漂洗,球磨后的粉料加入漂洗筒内进行漂洗,在漂洗时加入有机溶剂,将粉料中的有机物萃取出来；S4,水洗,在完成漂洗后,洗涤后的粉料进行水洗,去除粉料上的有机溶剂。本发明提出对绢云母进行提纯,通过对原料进行漂洗、水洗、过滤、脱水、干燥和压块,在漂洗时可以将原料内的有机物萃取出来,减少有机物杂质,而水洗和过滤这可以对原料中的无机物杂质进行清理,这样可以保证产品提纯的精度,而且流程简单,同时最后可以对产品进行压块包装,减少了受潮的可能。(The invention discloses a preparation process of high-purity sericite, which comprises the following steps: s1, selecting materials, and selecting coarse sericite materials with proper size; s2, crushing, namely crushing the selected coarse material, and then performing ball milling on the crushed fine material to obtain powder; s3, rinsing, namely adding the ball-milled powder into a rinsing cylinder for rinsing, and adding an organic solvent during rinsing to extract organic matters in the powder; and S4, washing, wherein after the rinsing is finished, the washed powder is washed with water to remove the organic solvent on the powder. The sericite is purified, organic matters in the raw materials can be extracted during rinsing through rinsing, washing, filtering, dehydrating, drying and briquetting the raw materials, organic matter impurities are reduced, and the washing and filtering can clean inorganic matter impurities in the raw materials, so that the product purification precision can be ensured, the process is simple, and the product can be finally briquetted and packaged, so that the possibility of being affected with damp is reduced.)

1. A preparation process of high-purity sericite is characterized by comprising the following steps:

s1, selecting materials, and selecting coarse sericite materials with proper size;

s2, crushing, namely crushing the selected coarse material, and then performing ball milling on the crushed fine material to obtain powder;

s3, rinsing, namely adding the ball-milled powder into a rinsing cylinder for rinsing, and adding an organic solvent during rinsing to extract organic matters in the powder;

s4, washing, wherein after rinsing is completed, the washed powder is washed with water to remove the organic solvent on the powder, and during washing, the powder is fully stirred and washed repeatedly for three times;

s5, filtering, wherein during washing, the powder is filtered, and muddy water and impurities are separated from the powder;

s6, dewatering, namely, putting the washed powder into a dewatering cylinder for dewatering;

s6, drying, namely pouring the dehydrated powder onto a tray, and heating and drying the powder through the tray to remove residual moisture in the powder;

and S7, briquetting, and after drying, briquetting and forming by means of a tray and a plurality of powder materials of hydraulic equipment, so that the materials are convenient to carry in a packing box.

2. The process of claim 1, wherein the powder is stirred by a magnetic stirrer during the washing of the powder.

3. The process according to claim 1, wherein the powder is placed in a dewatering bag during dewatering, and the dewatering bag is placed in a dewatering cylinder for high-speed spin dewatering.

4. The process for preparing high-purity sericite according to claim 1, wherein during filtration, a plurality of layers of filter screens and activated carbon are used as filter elements for filtration, and the filter screens and the activated carbon are arranged in a crossed manner.

5. The process according to claim 1, wherein the tray is provided with a molding groove, a cavity is formed below the molding groove and located inside the tray, the cavity is internally provided with an electric heating wire, the powder in the molding groove is heated and dried by the electric heating wire, and the hydraulic device drives the pressing plate to be matched with the molding groove for extrusion, so that the powder can be pressed into blocks.

Technical Field

The invention relates to the technical field of sericite processing, in particular to a preparation process of high-purity sericite.

Background

Sericite is one of mica, which belongs to silicate minerals having a layered structure. Sericite has wide application, and can be used in rubber, plastic, coating, paint, ceramic, heat insulation, cosmetics, pigment, paper making, metallurgy and other industries. Sericite is natural fine-grained muscovite, is silicate with a layered structure, can be split into extremely thin sheets, the thickness of the sheets can reach less than 1 mu m (theoretically, the sheets can be cut into 0.001 mu m), and the diameter-thickness ratio is large; the wear resistance and the abrasion resistance are good; heat-resistant insulation; is difficult to dissolve in acid-base solution; the chemical property is stable. In addition, the chemical composition and structure of sericite are similar to those of kaolin, and the sericite also has certain characteristics of clay minerals, namely good dispersion and suspension properties in an aqueous medium and an organic solvent, white and fine particles, viscosity and the like. Therefore, sericite combines many characteristics of mica minerals and clay minerals.

The existing sericite needs to be purified in advance due to low purity when in use, but the existing purification method has the problems of complicated flow, incapability of ensuring the purification precision and easiness in wetting of a purified product, so that a preparation process of the high-purity sericite is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a preparation process of high-purity sericite.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation process of high-purity sericite comprises the following steps:

s1, selecting materials, and selecting coarse sericite materials with proper size;

s2, crushing, namely crushing the selected coarse material, and then performing ball milling on the crushed fine material to obtain powder;

s3, rinsing, namely adding the ball-milled powder into a rinsing cylinder for rinsing, and adding an organic solvent during rinsing to extract organic matters in the powder;

s4, washing, wherein after rinsing is completed, the washed powder is washed with water to remove the organic solvent on the powder, and during washing, the powder is fully stirred and washed repeatedly for three times;

s5, filtering, wherein during washing, the powder is filtered, and muddy water and impurities are separated from the powder;

s6, dewatering, namely, putting the washed powder into a dewatering cylinder for dewatering;

s6, drying, namely pouring the dehydrated powder onto a tray, and heating and drying the powder through the tray to remove residual moisture in the powder;

and S7, briquetting, and after drying, briquetting and forming by means of a tray and a plurality of powder materials of hydraulic equipment, so that the materials are convenient to carry in a packing box.

Preferably, during the powder washing, a magnetic stirrer is used for stirring the powder.

Preferably, when the powder is dehydrated, the powder is put into a dehydration bag, and then the dehydration bag is put into a dehydration cylinder for high-speed rotation dehydration.

Preferably, during filtering, a plurality of layers of filter screens and activated carbon are used as filter elements for filtering, and the filter screens and the activated carbon are arranged in a crossed manner.

Preferably, be equipped with the shaping groove on the tray, the below in shaping groove is equipped with the cavity that is located tray inside, and the inside of cavity is equipped with the heating wire, heats the drying through the powder of heating wire in to the shaping inslot, and hydraulic equipment can drive the clamp plate and extrude with the cooperation of shaping groove, can carry out the briquetting shaping to the powder like this.

The sericite is purified, organic matters in the raw materials can be extracted during rinsing through rinsing, washing, filtering, dehydrating, drying and briquetting the raw materials, organic matter impurities are reduced, and the washing and filtering can clean inorganic matter impurities in the raw materials, so that the product purification precision can be ensured, the process is simple, and the product can be finally briquetted and packaged, so that the possibility of being affected with damp is reduced.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Examples

A preparation process of high-purity sericite comprises the following steps:

s1, selecting materials, and selecting coarse sericite materials with proper size;

s2, crushing, namely crushing the selected coarse material, and then performing ball milling on the crushed fine material to obtain powder;

s3, rinsing, namely adding the ball-milled powder into a rinsing cylinder for rinsing, and adding an organic solvent during rinsing to extract organic matters in the powder;

s4, washing, wherein after rinsing is completed, the washed powder is washed with water to remove the organic solvent on the powder, and during washing, the powder is fully stirred and washed repeatedly for three times;

s5, filtering, wherein during washing, the powder is filtered, and muddy water and impurities are separated from the powder;

s6, dewatering, namely, putting the washed powder into a dewatering cylinder for dewatering;

s6, drying, namely pouring the dehydrated powder onto a tray, and heating and drying the powder through the tray to remove residual moisture in the powder;

and S7, briquetting, and after drying, briquetting and forming by means of a tray and a plurality of powder materials of hydraulic equipment, so that the materials are convenient to carry in a packing box.

In this example, the powder was stirred with a magnetic stirrer during the washing.

In this embodiment, when the powder is dehydrated, the powder is put into the dehydration bag, and then the dehydration bag is put into the dehydration cylinder to perform high-speed rotation dehydration.

In this embodiment, when filtering, adopt multilayer filter screen and active carbon as filterable filter core and filter, multilayer filter screen and active carbon cross arrangement.

In this embodiment, be equipped with the shaping groove on the tray, the below in shaping groove is equipped with the cavity that is located the tray inside, and the inside of cavity is equipped with the heating wire, heats the drying through the powder of heating wire in to the shaping inslot, and hydraulic equipment can drive the clamp plate and extrude with the cooperation of shaping groove, can carry out the briquetting shaping to the powder like this.

The invention provides a method for purifying sericite, which comprises the steps of selecting raw materials, crushing the raw materials with proper size, ball-milling and crushing the crushed raw materials, rinsing the ground raw materials, adding an organic solvent to extract organic impurities in the raw materials, washing the extracted raw materials with water, removing part of inorganic impurities in the raw materials through washing, filtering, thoroughly cleaning the impurities in the raw materials by a plurality of layers of filter screens and activated carbon, ensuring the purity of the raw materials, dehydrating, drying and briquetting the raw materials after purification, and facilitating product packaging, thereby facilitating transportation and avoiding dampness and being beneficial to the quality of products.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.