CN109809478A - Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process - Google Patents
Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process Download PDFInfo
- Publication number
- CN109809478A CN109809478A CN201711161092.1A CN201711161092A CN109809478A CN 109809478 A CN109809478 A CN 109809478A CN 201711161092 A CN201711161092 A CN 201711161092A CN 109809478 A CN109809478 A CN 109809478A
- Authority
- CN
- China
- Prior art keywords
- slurry
- titanium dioxide
- hydrated titanium
- carbon black
- black
- 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 metatitanic acid particle growth detection methods in a kind of titanyl sulfate hydrolytic process, hydrated titanium dioxide diameter is characterized by test hydrated titanium dioxide optical property, the following steps are included: carbon black is added in polyurethane, it is carried out after crushing 30-120min is sanded with 95 zirconium pearls, obtains 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, metatitanic acid grain in especially a kind of titanyl sulfate hydrolytic process
Sub- growth 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 metatitanic acid particle growths in a kind of titanyl sulfate hydrolytic process to examine
Survey method characterizes hydrated titanium dioxide diameter by test hydrated titanium dioxide optical property.
The technical solution adopted by the present invention to solve the technical problems is: metatitanic acid grain in a kind of titanyl sulfate hydrolytic process
Sub- growth detection method, comprising the following steps:
(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:
Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process, is 0.1: 100 by carbon black in mass ratio
Ratio be added in Baysin K, wherein Baysin K be modified protein, by bright Shengs production；Wherein carbon black specific surface is
50m2/g；It is carried out after crushing 30min is sanded with the 95 zirconium pearls that diameter is 0.6mm, obtains Carbon Black Slurry with 40 mesh net filtrations；By gas
Phase sodium nitrite is that 1: 20 ratio is added in chloroazotic acid in mass ratio, then selects high-speed stirred dispersion machine, and stirring rate is
3000rpm, slurry must be thickened by being dispersed with stirring 8min；After Carbon Black Slurry and thickening slurry are 1: 100 mixing in mass ratio, it is added mixed
1% anionic polyacrylamide of the quality of Carbon Black Slurry and thickening slurry after conjunction, then selects high-speed stirred dispersion machine,
Stirring rate is 3000rpm, is dispersed with stirring uniformly mixed, obtains black slurry；Hydrated titanium dioxide filter cake is beaten and is dispersed, preparation
The hydrated titanium dioxide slurry for being 1.1g/ml at density；It is in mass ratio 1: 1 mixed by hydrated titanium dioxide slurry and black slurry
After closing uniformly, one layer of black serous coat is uniformly applied on transparency glass plate with the wet film maker of 75um；It is tested and is applied with color difference meter
There is the optical property of the glass plate of black serous coat.
Claims (1)
1. metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process, 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 |
|---|---|---|---|
| CN201711161092.1A CN109809478A (en) | 2017-11-20 | 2017-11-20 | Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711161092.1A CN109809478A (en) | 2017-11-20 | 2017-11-20 | Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109809478A true CN109809478A (en) | 2019-05-28 |
Family
ID=66599199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711161092.1A Pending CN109809478A (en) | 2017-11-20 | 2017-11-20 | Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109809478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432733A (en) * | 2022-10-18 | 2022-12-06 | 攀枝花学院 | Method for preparing metatitanic acid with narrow particle size distribution |
-
2017
- 2017-11-20 CN CN201711161092.1A patent/CN109809478A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115432733A (en) * | 2022-10-18 | 2022-12-06 | 攀枝花学院 | Method for preparing metatitanic acid with narrow particle size distribution |
| CN115432733B (en) * | 2022-10-18 | 2024-04-30 | 攀枝花学院 | Method for preparing metatitanic acid with narrow particle size distribution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106226204B (en) | The detection method of metatitanic acid grain size | |
| EP0444798A2 (en) | Method for the preparation of titanium dioxide | |
| JP2939659B2 (en) | Precipitated calcium carbonate | |
| CN108083331B (en) | A kind of preparation method of rutile titanium dioxide superfine powder | |
| US8182602B2 (en) | Method of preparing a well-dispersable microcrystalline titanium dioxide product, the product, and the use thereof | |
| Chakraborty et al. | Steady-state transitions and polymorph transformations in continuous precipitation of calcium carbonate | |
| CN109535775B (en) | Preparation method of titanium dioxide special for printing ink | |
| CN100355658C (en) | Method for preparing anatase chemical fiber special titanium pigment | |
| CN103693667B (en) | A kind of Rodlike light calcium carbonate and preparation method thereof | |
| CN105271363B (en) | A kind of preparation method of super fine zinc oxide powder | |
| CN107935038B (en) | Preparation process of special titanium dioxide for plastic color master batch | |
| CN101519229A (en) | Method for continuously synthesizing nickel carbonate | |
| CN109813638A (en) | A kind of titanium dioxide hydrolytic process detection method | |
| 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 | |
| CN101793679A (en) | On-line graying point judging device in titanium white production | |
| CN107074577A (en) | The PCC of portlandite content with reduction | |
| FI105545B (en) | Precipitated calcium carbonate | |
| CN109294281A (en) | The preparation method of pigmentary titanium dioxide | |
| CN109809478A (en) | Metatitanic acid particle growth detection method in a kind of titanyl sulfate hydrolytic process | |
| CN109781589A (en) | A kind of detection method of hydrated titanium dioxide diameter | |
| CN1923708A (en) | Producing method of iron oxide yellow pigment | |
| CN109797451A (en) | A kind of preparation method and application of terylene chemical fibre of titanium dioxide | |
| TWI737769B (en) | Process for the production of titanium dioxide, and titanium dioxide obtained thereby | |
| CN107364883A (en) | A kind of titanium dioxide primary product and preparation method thereof |
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 |