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Characterization method of sintering degree of rutile titanium dioxide particles

A titanium dioxide and rutile-type technology, applied in the direction of permeability/surface area analysis, chemical analysis by combustion, measuring devices, etc., to achieve the effect of strong operability and scientific and reasonable methods

Inactive Publication Date: 2014-07-02
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] There is no report on the characterization method of the sintering degree of rutile titanium dioxide particles in domestic and foreign literatures and patents, so a method that can characterize the sintering degree of rutile titanium dioxide particles is urgently needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Weigh 1.0g of the ground 1# sample, turn on the specific surface area measuring instrument at the same time and preheat it for 10 minutes, put the 1# sample into the sample tube of the specific surface area measuring instrument, follow the established procedure of the specific surface area measuring instrument, that is, the sample passes through After drying, measuring and other processes, the specific surface area value is 7.66m 2 / g, it is judged that the particles in the sample are not sintered, and the pigment properties of the sample are measured at the same time: the decolorizing power TCS is 1720, the brightness Jans is 94.6, the blue phase SCX is 3.05, and the rutile content is 97.2%.

example 2

[0037]Weigh 2.1g of the ground 2# sample, turn on the specific surface area measuring instrument at the same time and preheat it for 10 minutes, put the 2# sample into the sample tube of the specific surface area measuring instrument, follow the established procedure of the specific surface area measuring instrument, that is, the sample passes through After drying, measuring and other processes, the specific surface area value is 5.43m 2 / g, it is judged that the particles in the sample are seriously sintered, and the pigment properties of the sample are measured at the same time: the decolorizing power TCS is 1655, the brightness Jans is 93.8, the blue phase SCX is 1.21, and the rutile content is 99.1%.

example 3

[0039] Weigh 3.0g of the ground 3# sample, turn on the specific surface area measuring instrument at the same time and preheat it for 10 minutes, put the 3# sample into the sample tube of the specific surface area measuring instrument, follow the established procedure of the specific surface area measuring instrument, that is, the sample passes through After drying, measuring and other processes, the specific surface area value is 5.56m 2 / g, it is judged that the particles in the sample are seriously sintered, and the pigment properties of the sample are measured at the same time: the decolorizing power TCS is 1625, the brightness Jans is 93.9, the blue phase SCX is 0.87, and the rutile content is 98.4%.

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Abstract

The invention discloses a characterization method of the sintering degree of rutile titanium dioxide particles. The characterization method is to measur the specific area of a rutile titanium dioxide sample to obtain the particle sintering degree through analyzing the measured specific area value, if the specific area value is small, the particle sintering of titanium dioxide is severe; if the specific area value is large, the particle sintering of titanium dioxide is mild or none. According to the invention, the specific area value of the rutile titanium dioxide particles is measured and obtained through a specific area tester and the particle sintering degree is obtained and characterized through analyzing the measured data; the characterization method is scientific, reasonable, simple, practical and strong in operability; a method for quantitatively measure the particle sintering degree of titanium dioxide is provided initially in the industry and the production of titanium white powder can be relatively well guided.

Description

technical field [0001] The invention belongs to the technical field of sulfuric acid process titanium dioxide production, relates to the technical field of characterization and detection of titanium dioxide particles, and more specifically relates to a characterization method for the sintering degree of rutile titanium dioxide particles. Background technique [0002] The scientific name of titanium dioxide is titanium dioxide. In the process of producing rutile titanium dioxide by the sulfuric acid method, calcination refers to the process of converting the hydrolyzed metatitanic acid into titanium dioxide particles after a series of impurity removal processes such as washing, rinsing, and filtering. This process mainly Including dehydration and desulfurization of metatitanic acid, crystal transformation and growth of titanium dioxide particles, etc., the chemical equation is shown in formula (1). [0003] Formula 1) [0004] During the calcination process, it is necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N31/12
Inventor 罗志强杜剑桥杨仰军
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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