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Wet processing method of superfine mica iron oxide

A technology of mica iron oxide and ultrafine mica, which is applied in the direction of grain processing, etc., can solve the problems of destroying the flake structure of mica iron oxide, poor crushing effect, complicated crushing process, etc., and achieve good flake structure, narrow particle size range, The effect of high content of sheet structure

Inactive Publication Date: 2017-01-25
安徽纽亚达科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current pulverization process of mica iron oxide is complex, the pulverization effect is not good, the particle size range is relatively wide, and the flake structure of mica iron oxide will be destroyed during the pulverization process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of superfine mica iron oxide wet processing method, comprises the following steps:

[0017] (1) The mica iron oxide raw material is generally added in the ball mill, and the ethanol solution is added as a grinding medium, and the ethanol solution is 95wt% ethanol, and the added ethanol solution accounts for 12% of the mica iron oxide raw material weight, and the weight of the mica iron oxide Percentage, then add 2% grinding aid, the grinding aid is silane coupling agent KH550;

[0018] (2) Then carry out ball milling by the ball mill described in step (1), the ball-to-material ratio is 8:1, the set speed is 300r / min, the ball milling time is 120min, and then dried in a vacuum oven at 30°C , Dispersed to produce ultra-fine mica iron oxide powder.

Embodiment 2

[0020] A kind of superfine mica iron oxide wet processing method, comprises the following steps:

[0021] (1) The mica iron oxide raw material is generally added in the ball mill, and the ethanol solution is added as a grinding medium, and the ethanol solution is 95wt% ethanol, and the added ethanol solution accounts for 15% of the mica iron oxide raw material weight, and the weight of the mica iron oxide Percentage, then add 1% grinding aid, the grinding aid is silane coupling agent KH560;

[0022] (2) Then carry out ball milling by the ball mill described in step (1), the ball-to-material ratio is 10:1, the set speed is 500r / min, the ball milling time is 60min, and then dried in a vacuum oven at 40°C , Dispersed to produce ultra-fine mica iron oxide powder.

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Abstract

The invention provides a wet processing method of superfine mica iron oxide. The wet processing method includes the steps of firstly, adding mica iron oxide raw materials in a ball mill, adding an ethanol solution which is 95wt% ethanol to serve as the grinding medium, and adding, by the weight percentage of mica iron oxide, 1-2% of grinding auxiliaries, wherein the ethanol solution accounts for 12-15% of the weight of the mica iron oxide raw materials; secondly, performing ball milling by the ball mill in the first step, drying, and dispersing to obtain the superfine mica iron oxide, wherein the ratio of the grinding medium to the materials is (8:1)-(10:1), rotation speed is 300-500r / minute, and ball milling time is 60-120 minutes. The wet processing method has the advantages that the average fineness of the mica iron oxide can reach below 8 micrometers by optimizing operation parameters, the sheet structure of particles can be well kept, and a narrow particle size range is achieved.

Description

technical field [0001] The invention relates to the technical field of mica iron oxide processing, in particular to an ultrafine mica iron oxide wet processing method. Background technique [0002] Mica iron oxide is a special iron ore in nature with ferric oxide as the main chemical composition. Its crystallization state is similar to mica, and its structure is scale-like, gray-black, with metallic luster. Due to its unique scaly structure, iron oxide ash and iron oxide red prepared by crushing, ultra-fine processing, and sorting are mainly used as fillers for anti-corrosion coatings. The current pulverization process of mica iron oxide is complex, the pulverization effect is not good, the particle size range is relatively wide, and the flake structure of mica iron oxide will be destroyed during the pulverization process. Contents of the invention [0003] In view of the above technical problems, the object of the present invention is to provide a wet processing method o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/10B02C17/18B02C23/06
CPCB02C17/10B02C17/18B02C23/06
Inventor 陈正余
Owner 安徽纽亚达科技有限责任公司
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