Method for preparing kaolinite with high radius-thickness ratio, and measuring and calculating radius-thickness ratio of kaolinite

A technology of kaolinite and diameter-thickness ratio, which is applied in the preparation of test samples, measuring devices, particle size analysis, etc., can solve the problems of high measurement cost, low accuracy, and complicated calculation methods, and achieve good repeatability and accuracy The effect of high precision and low energy consumption

Inactive Publication Date: 2014-07-16
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Claims
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Problems solved by technology

[0008] The present invention aims to solve the problems of complex calculation method, high measurement cost and low accuracy existing in the existing measurement technology of kaolinite flakes with high diameter-thickness ratio, and in order to expand the application field of kaolinite minerals and improve the Utilization rate of ridge stone, providing a method for the preparation of high diameter-thickness ratio kaolinite and the measurement method of its diameter-thickness ratio

Method used

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  • Method for preparing kaolinite with high radius-thickness ratio, and measuring and calculating radius-thickness ratio of kaolinite
  • Method for preparing kaolinite with high radius-thickness ratio, and measuring and calculating radius-thickness ratio of kaolinite
  • Method for preparing kaolinite with high radius-thickness ratio, and measuring and calculating radius-thickness ratio of kaolinite

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Experimental program
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Effect test

preparation example Construction

[0054] The preparation of the high-diameter-thickness ratio ridge stone sheet and the calculation method of the diameter-thickness ratio provided in this example are as follows: Figure 4 shown, including:

[0055] Step 1, intercalate the kaolin to be tested with a supersaturated dimethyl sulfoxide solution, wash and filter with methanol, spray dry, put it in a conductive solution, adjust the acidity and alkalinity of the solution, and keep the pH value at 9.5-10, Ultrasonic dispersion is performed after adding a dispersant for dispersion.

[0056] Step 2, using the Multisizer3 Beckman Coulter instrument, place the microporous tube in the suspension of the test instrument, place electrodes inside and outside the microporous tube to energize, and measure the tiny resistance changes produced by the sample particles one by one; through the amplifier, the tiny The voltage is transformed into a voltage pulse signal that can be accurately measured;

[0057] Step 3, using the compa...

Embodiment

[0061] Taking the kaolin sample in Xuanhua area as an example, through the above implementation method, the average pulse height of the sample can be measured as L=1.7944 μm, and the average pulse width is W=9.11 μs. Compared with the standard spherical particle pulse data and particle size comparison table 1, W is between 8.57 and 9.29, then corresponding, n=4, W n =8.57μs, W n+1 =9.29μs, then substitute into the formula: d W = n + W - W n W n + 1 - W n = 4 + W - W 4 W ...

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Abstract

The invention provides a method for preparing kaolinite with a high radius-thickness ratio, and measuring and calculating the radius-thickness ratio of kaolinite. The method comprises the following steps: intercalating a kaolinite sample, carrying out alcohol washing peeling treatment, and carrying out spray drying; and dissolving the above prepared powder in water, adjusting the acidity, dispersing by using a dispersant and supersonic waves, and detecting the kaolinite sample by utilizing a resistance apparatus; and arranging detected data, converting the pulse data unit, introducing the pulse data into a calculating formula, and calculating to obtain the radius-thickness ratio of the sample. The formula is shown in the specification. The method for preparing kaolinite with a high radius-thickness ratio, and measuring and calculating the radius-thickness ratio of kaolinite has a simple preparation technology, and a clear and accurate measuring and calculating processing. The method has the advantages of low cost, simple flow, low energy consumption, no pollution, good repeatability, high accuracy and easy popularization and application.

Description

technical field [0001] The present invention relates to the preparation of kaolinite with high diameter-to-thickness ratio and its method for calculating its diameter-thickness ratio. Continue to study, this patent includes the preparation of kaolinite with high diameter-thickness ratio and the calculation method of kaolinite diameter-thickness ratio, which belongs to the field of material testing technology. Background technique [0002] Kaolinite is a 1:1 type dioctahedral layered silicate mineral composed of silicon-oxygen tetrahedron and aluminum-oxygen octahedron. Under the microscope, kaolinite is in the shape of hexagonal scales, single crystals are in the shape of hexagonal plates or books, and the aggregates are often in the shape of worms or accordions (Yin Hairong et al., Materials Herald, 2006). my country's kaolin resources are world-renowned for their complete genetic types, abundant reserves, and excellent texture. The proven geological reserves of kaolin ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N15/02
Inventor 刘钦甫张志亮程宏飞
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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