CN109813638A - A kind of titanium dioxide hydrolytic process detection method - Google Patents
A kind of titanium dioxide hydrolytic process detection method Download PDFInfo
- Publication number
- CN109813638A CN109813638A CN201711160821.1A CN201711160821A CN109813638A CN 109813638 A CN109813638 A CN 109813638A CN 201711160821 A CN201711160821 A CN 201711160821A CN 109813638 A CN109813638 A CN 109813638A
- Authority
- CN
- China
- Prior art keywords
- slurry
- titanium dioxide
- carbon black
- black
- hydrated titanium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a kind of titanium dioxide hydrolytic process detection methods, hydrated titanium dioxide diameter is characterized by test hydrated titanium dioxide optical property, the following steps are included: carbon black is added in polyurethane, is carried out after crushing 30-120min is sanded with 95 zirconium pearls, obtain Carbon Black Slurry with the screen to filtrate；Carboxymethyl cellulose or gas phase sodium nitrite are added in chloroazotic acid or water, slurry must be thickened by being then dispersed with stirring 8-15min；After Carbon Black Slurry and thickening slurry are mixed, anionic polyacrylamide is added, and be dispersed with stirring uniformly mixed, obtains black slurry；Hydrated titanium dioxide filter cake is beaten and is dispersed, the hydrated titanium dioxide slurry that density is 1.1-1.3g/ml is prepared into；After mixing by hydrated titanium dioxide slurry and black slurry, one layer of black serous coat is uniformly applied on transparency glass plate with wet film maker；The optical property of the glass plate of black serous coat is coated with color difference meter test.Operation of the present invention is simple, detects optical property b value or the Z-X value of hydrated titanium dioxide by color difference meter to characterize diameter, b value is smaller or Z-X value is bigger, and diameter is smaller.
Description
Technical field
The present invention relates to a kind of detection method of particle diameter, especially a kind of titanium dioxide hydrolytic process detection method.
Background technique
Country's titanium dioxide is mainly produced with sulfuric acid process at present, and production process is very tediously long, wherein again with rutile-type
The production of titanium dioxide is increasingly complex.Iron titanate is become soluble titanyl sulfate and sulphur with sulfuric acid solution after crushing by raw ore
Then sour iron is separated off unreacted sodium nitrite and other substances by sedimentation, then removed by vacuum crystallization big
After partial ferrous sulfate, concentration needed for purifying and concentrate reach sequential hydrolysis is carried out.In hydrolysis, titanyl sulfate becomes
Hydrated titanium dioxide, then hydrated titanium dioxide carries out salt treatment and calcining, obtains after once washing, bleaching, secondary washing
To the first product of rutile type titanium white.Calcined first product by wet process coarse powder and it is finely divided after carry out inorganic coating, then dodge
It is evaporated dry and air-flow crushing, finally carries out finished product packing.Finished product packing is crushed to from raw ore, production procedure up to 20 multisteps,
Very big challenge is brought to production process control, this is also that sulfuric acid method titanium pigment product quality fluctuates big major reason.Cause
This, reinforces the monitoring of production process, becomes the unique channel of stabilized product quality.
Hydrolysis be titanium white production by black area to the very important workshop section in white area, the hydrated titanium dioxide quality that hydrolyzes
Directly determine product quality, the diameter of hydrated titanium dioxide and distribution determine the efficiency and quality of washing, washing
Quality determines the content of metal impurities in titanium dioxide again, this directly affects the whiteness of titanium dioxide.Hydrated titanium dioxide simultaneously
Diameter also determine the optical property of product, such as whiteness and scattering force.Test hydrated titanium dioxide diameter is big at present
Small mainly to be detected with Malvern laser particle analyzer, although convenient and efficient, this method is scattered using light when detecting
Principle, diameter is small to be detected, thus can not actual response product diameter, while also can not according to result come
Process control is realized well.
The optical property of titanium dioxide is the very important basic pigment performance of titanium dioxide, because of hydrated titanium dioxide optical property
Test and titanium white powder pigment test it is different, in hydrated titanium dioxide filter cake contain a large amount of water, with regular convention formula because material
Slurry excessively dilution can not form a film, therefore not have special test hydrated titanium dioxide optical property also at present to characterize hydration titanium dioxide
The method of titanium di.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of titanium dioxide hydrolytic process detection methods, by testing water
Titanium dioxide optics performance is closed to characterize hydrated titanium dioxide diameter.
The technical solution adopted by the present invention to solve the technical problems is: a kind of titanium dioxide hydrolytic process detection method,
The following steps are included:
(1) carbon black is added in polyurethane, is carried out after crushing 30-120min is sanded with 95 zirconium pearls, is obtained with the screen to filtrate
The mass ratio of Carbon Black Slurry, the carbon black and polyurethane is 0.1-5: 100；
(2) carboxymethyl cellulose or gas phase sodium nitrite are added in chloroazotic acid or water, are then dispersed with stirring 8-15min and obtain
Thicken slurry；
(3) after mixing the resulting Carbon Black Slurry of step (1) and the resulting thickening slurry of step (2), it is poly- that anion is added
Acrylamide, and it is dispersed with stirring uniformly mixed, obtain black slurry；
(4) optical property of the glass plate of black serous coat is coated with color difference meter test.
The beneficial effects of the present invention are:
The detection method of hydrated titanium dioxide diameter of the invention is easy to operate, detects hydrated titanium dioxide by color difference meter
Optical property b value or Z-X value characterize the diameter of hydrated titanium dioxide, b value is smaller or Z-X value is bigger, and diameter is got over
It is small；
When Z-X value increases, also with increase, this brings great convenience to production, can for the brightness of object under calcining kiln
It is prejudged with the quality to hydrated titanium dioxide, to be adjusted in time, is played very well for production operation and monitoring in advance
Synergism.
Specific embodiment
Below according to embodiment, the present invention is further described.
Embodiment:
Carbon black is that 0.1: 100 ratio is added to by a kind of titanium dioxide hydrolytic process detection method in mass ratio
In Baysin K, wherein Baysin K is modified protein, is produced by bright Sheng；Wherein carbon black specific surface is 50m2/g；Use diameter
It is carried out after crushing 30min is sanded for the 95 zirconium pearls of 0.6mm, obtains Carbon Black Slurry with 40 mesh net filtrations；Gas phase sodium nitrite is pressed
The ratio that mass ratio is 1: 20 is added in chloroazotic acid, then selects high-speed stirred dispersion machine, stirring rate 3000rpm, stirring
Dispersion 8min must thicken slurry；Carbon Black Slurry and thickening slurry be in mass ratio 1: 100 mixing after, mixed carbon black material is added
1% anionic polyacrylamide of the quality of slurry and thickening slurry, then selects high-speed stirred dispersion machine, and stirring rate is
3000rpm, is dispersed with stirring uniformly mixed, obtains black slurry；Hydrated titanium dioxide filter cake is beaten and is dispersed, being prepared into density is
The hydrated titanium dioxide slurry of 1.1g/ml；It is in mass ratio 1: 1 uniformly mixed by hydrated titanium dioxide slurry and black slurry
Afterwards, one layer of black serous coat is uniformly applied on transparency glass plate with the wet film maker of 75um；Black is coated with color difference meter test
The optical property of the glass plate of serous coat.
Claims (1)
1. a kind of titanium dioxide hydrolytic process detection method, which comprises the following steps:
(1) carbon black is added in polyurethane, is carried out after crushing 30-120min is sanded with 95 zirconium pearls, obtains carbon black with the screen to filtrate
The mass ratio of slurry, the carbon black and polyurethane is 0.1-5 ︰ 100；
(2) carboxymethyl cellulose or gas phase sodium nitrite are added in chloroazotic acid or water, being then dispersed with stirring 8-15min must thicken
Slurry；
(3) after mixing the resulting Carbon Black Slurry of step (1) and the resulting thickening slurry of step (2), anion pp is added
Amide, and it is dispersed with stirring uniformly mixed, obtain black slurry；
(4) optical property of the glass plate of black serous coat is coated with color difference meter test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160821.1A CN109813638A (en) | 2017-11-20 | 2017-11-20 | A kind of titanium dioxide hydrolytic process detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160821.1A CN109813638A (en) | 2017-11-20 | 2017-11-20 | A kind of titanium dioxide hydrolytic process detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813638A true CN109813638A (en) | 2019-05-28 |
Family
ID=66598154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711160821.1A Pending CN109813638A (en) | 2017-11-20 | 2017-11-20 | A kind of titanium dioxide hydrolytic process detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109813638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940620A (en) * | 2019-12-18 | 2020-03-31 | 中信钛业股份有限公司 | Detection method for evaluating various physical properties of titanium dioxide pigment |
| CN113125297A (en) * | 2020-01-10 | 2021-07-16 | 立邦涂料（中国）有限公司 | Method for detecting dispersibility of titanium dioxide in water |
-
2017
- 2017-11-20 CN CN201711160821.1A patent/CN109813638A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110940620A (en) * | 2019-12-18 | 2020-03-31 | 中信钛业股份有限公司 | Detection method for evaluating various physical properties of titanium dioxide pigment |
| CN113125297A (en) * | 2020-01-10 | 2021-07-16 | 立邦涂料（中国）有限公司 | Method for detecting dispersibility of titanium dioxide in water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106226204B (en) | The detection method of metatitanic acid grain size | |
| EP2178798B1 (en) | Method of preparing a well-dispersable microcrystalline titanium dioxide product | |
| EP0444798A2 (en) | Method for the preparation of titanium dioxide | |
| CN103387254B (en) | A kind of phase transition-carborization prepares the method for light calcium carbonate | |
| CN104828861B (en) | A kind of industrial metatitanic acid grading produces the method for pigment titanium white | |
| CN105017813B (en) | The production method of rutile type titanium white | |
| CN103189315A (en) | Production of high purity precipitated calcium carbonate | |
| CN107935038B (en) | Preparation process of special titanium dioxide for plastic color master batch | |
| CN106928753B (en) | A kind of preparation method for PVC automobile chassis stone-impact-proof paint modified calcium carbonates | |
| CN109813638A (en) | A kind of titanium dioxide hydrolytic process detection method | |
| CN101519229A (en) | Method for continuously synthesizing nickel carbonate | |
| Wang et al. | Preparation of Rutile Titanium Dioxide White Pigment by a Novel NaOH Molten‐Salt Process: Influence of Doping and Calcination | |
| CN107973327A (en) | A kind of impurity-removing method of red mud wash liquor and the production method of boehmite | |
| CN103693667A (en) | Rodlike light calcium carbonate and preparation method thereof | |
| CN103305032B (en) | Iron oxide yellow viscosity reduction method | |
| CN101844815A (en) | Method for producing iron oxide red pigments by using calcium mineral salt as neutralizer for two-step oxidation | |
| CN109294281A (en) | The preparation method of pigmentary titanium dioxide | |
| CN109781589A (en) | A kind of detection method of hydrated titanium dioxide diameter | |
| CN109809478A (en) | Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process | |
| CN1923708A (en) | Producing method of iron oxide yellow pigment | |
| CN107364883B (en) | A kind of titanium dioxide primary product and preparation method thereof | |
| CN109797451A (en) | A kind of preparation method and application of terylene chemical fibre of titanium dioxide | |
| CN106830064A (en) | Metatitanic acid wet desulphurization method | |
| CN110407219A (en) | A kind of preparation process improving kaolin whiteness | |
| CN105819482B (en) | The preparation method of metastable crystalline phase winnofil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |