CN108002440A - A kind of novel production process of titanium dioxide powder - Google Patents
A kind of novel production process of titanium dioxide powder Download PDFInfo
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- CN108002440A CN108002440A CN201711232761.XA CN201711232761A CN108002440A CN 108002440 A CN108002440 A CN 108002440A CN 201711232761 A CN201711232761 A CN 201711232761A CN 108002440 A CN108002440 A CN 108002440A
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- titanium dioxide
- titanium
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- hydrolysis solution
- acidolysis
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/08—Drying; Calcining ; After treatment of titanium oxide
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/65—Chroma (C*)
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
A kind of novel production process of titanium dioxide powder, belongs to new titanium dioxide Chemical Manufacture manufacture field.The invention discloses a kind of novel production process of titanium dioxide powder, this method comprises the following steps：(1) the certain density sulfuric acid solution acidolysis of high titanium slag is obtained into high titanium slag acid hydrolysis solution, the certain density sulfuric acid solution acidolysis of ilmenite concentrate is obtained into ilmenite concentrate acid hydrolysis solution；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains the mixed with titanium liquid of the titanium dioxide containing certain mass concentration, trivalent titanium ion, divalence ferrous ion；(3) certain density titanium liquid is added to after being diluted in boiling water and produces nucleus, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, the iron in metatitanic acid is removed with centrifugation acid wash and WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure new titanium dioxide.
Description
Technical field
The present invention relates to a kind of novel production process of titanium dioxide powder, belongs to titanium dioxide Chemical Manufacture manufacture field.
Background technology
New titanium dioxide, main component are the Chinese white of titanium dioxide (TiO2).Scientific name is titanium dioxide, and molecular formula is
TiO2 is a kind of polycrystalline compounds, its particle is in regularly arranged, has grid system.New titanium dioxide is as a kind of white face
Material, due to its superior density, dielectric constant and refractive index, makes it possess high covering power, high reducing power, best bright finish, Gao Bai
Degree and strong weatherability, while also there is the performance such as chemical inertness, nontoxic, harmless, thus as performance so far
Best Chinese white, becomes Chinese white important in national economy, is widely used to building coating, plastics, papermaking, oil
The multiplexing such as ink, chemical fibre, electric welding, enamel, daily-use chemical industry field.The relative density of titanium dioxide is minimum.New titanium dioxide is recognized
To be Chinese white best now, there is splendid optical property, whiteness and covering power, processing quilt is coated by different surfaces
It is widely used in the fields such as coating, plastics, papermaking and ink.
The content of the invention
Can effectively it be reduced in view of the deficienciess of the prior art, the technical problem to be solved by the invention is to provide one kind
High titanium slag dosage, improves the dosage of ilmenite concentrate, and slag ore deposit ratio is reduced to 1：Less than 1, low cost produces titanium dioxide and titanium
White powder has the whiteness of higher and the preparation method of stronger weatherability.
To solve the above-mentioned problems, the technical solution adopted by the present invention is：A kind of novel production process of titanium dioxide powder, including with
Lower step：
(1) the certain density sulfuric acid solution acidolysis of high titanium slag is obtained into high titanium slag acid hydrolysis solution, ilmenite concentrate is used certain dense
The sulfuric acid solution acidolysis of degree obtains ilmenite concentrate acid hydrolysis solution；
(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and is contained
There are the titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of certain mass concentration；
(3) certain density titanium liquid is added to after being diluted in boiling water and produces nucleus, nucleus is hydrolyzed to obtain metatitanic acid
With coarse dispersion type titanium dioxide, the iron in metatitanic acid is removed with centrifugation acid wash and WATER-WASHING METHOD；
(4) coarse dispersion titanium dioxide is calcined, obtains pure new titanium dioxide；
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1. there is the whiteness of higher and stronger weatherability than ordinary titanium powder with new titanium dioxide prepared by the method；
2. effectively increasing the dosage of ilmenite concentrate while reducing high titanium slag dosage, the generation of pollutant is reduced；
3. efficiency is higher, and does not have an impact the pollutant of new titanium dioxide quality.
Embodiment
Embodiment 1：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 50% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 50% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure new titanium dioxide.
New titanium dioxide whiteness prepared by the embodiment is 98.4, covering power 18g/m2。
Embodiment 2：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 52% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 52% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure titanium dioxide.The reality
It is 98.6 to apply the new titanium dioxide whiteness prepared by example, covering power 18.2g/m2。
Embodiment 3：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 54% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 54% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure titanium dioxide.The reality
It is 98.8 to apply the new titanium dioxide whiteness prepared by example, covering power 18.4g/m2。
Embodiment 4：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 56% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 56% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure titanium dioxide.The reality
It is 99.0 to apply the new titanium dioxide whiteness prepared by example, covering power 18.6g/m2。
Embodiment 5：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 58% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 58% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure titanium dioxide.The reality
It is 99.2 to apply the new titanium dioxide whiteness prepared by example, covering power 18.8g/m2。
Embodiment 6：A kind of novel production process of titanium dioxide powder, comprises the following steps：(1) sulphur by high titanium slag with 60% concentration
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the sulfuric acid solution acidolysis that ilmenite concentrate concentration is 60% is obtained ilmenite concentrate acidolysis
Liquid；(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain
Titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of mass concentration；(3) certain density titanium liquid is added to
Nucleus is produced after being diluted in boiling water, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash
The iron in metatitanic acid is removed with WATER-WASHING METHOD；(4) coarse dispersion titanium dioxide is calcined, obtains pure titanium dioxide.The reality
It is 99.4 to apply the new titanium dioxide whiteness prepared by example, covering power 19.0g/m2。
Claims (4)
1. a kind of novel production process of titanium dioxide powder, it is characterised in that comprise the following steps：(1) by high titanium slag with certain density sulphur
Acid solution acidolysis obtains high titanium slag acid hydrolysis solution, and the certain density sulfuric acid solution acidolysis of ilmenite concentrate is obtained ilmenite concentrate acid hydrolysis solution；
(2) high titanium slag acid hydrolysis solution and ilmenite concentrate the acid hydrolysis solution mixing obtained acidolysis, brings it about chemical reaction and obtains containing certain matter
Measure titanium dioxide, trivalent titanium ion, the mixed with titanium liquid of divalence ferrous ion of concentration；(3) certain density titanium liquid is added to boiling
In water dilute after produce nucleus, nucleus is hydrolyzed to obtain metatitanic acid and coarse dispersion type titanium dioxide, with centrifugation acid wash and
WATER-WASHING METHOD removes the iron in metatitanic acid；(4) coarse dispersion titanium dioxide is calcined, obtains pure new titanium dioxide.
A kind of 2. novel production process of titanium dioxide powder according to claim 1, it is characterised in that：A certain concentration sulfuric acid
Concentration is 50-60%.
A kind of 3. novel production process of titanium dioxide powder according to claim 1, it is characterised in that：The high titanium slag and titanium
The mass ratio of concentrate is 0.8~0.9：1.
A kind of 4. novel production process of titanium dioxide powder according to claim 1, it is characterised in that：The high titanium slag acid hydrolysis solution
And ilmenite concentrate acid hydrolysis solution be mixed to get material in mixed solution concentration be TiO2 mass concentration 195~205g/L, Ti3+
The mass ratio of mass concentration 0.8~3g/L, Fe2+ and TiO2 be 0.37~0.40 and F values are 1.80~1.90.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467121A (en) * | 2018-12-26 | 2019-03-15 | 江苏中研创星材料科技有限公司 | The method of the removal of impurities of metatitanic acid |
| CN110357153A (en) * | 2019-08-15 | 2019-10-22 | 攀枝花学院 | The method that industrial metatitanic acid hydro-thermal prepares high-purity titanium dioxide |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342387A (en) * | 2013-07-15 | 2013-10-09 | 贵州东华工程股份有限公司 | Method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing sulfuric acid method |
| CN104556218A (en) * | 2013-10-26 | 2015-04-29 | 卢梦迪 | Preparation method of titanium dioxide |
| CN106241868A (en) * | 2016-08-31 | 2016-12-21 | 攀枝花大互通钛业有限公司 | A kind of titanium dioxide and preparation method thereof |
-
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- 2017-11-30 CN CN201711232761.XA patent/CN108002440A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342387A (en) * | 2013-07-15 | 2013-10-09 | 贵州东华工程股份有限公司 | Method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing sulfuric acid method |
| CN104556218A (en) * | 2013-10-26 | 2015-04-29 | 卢梦迪 | Preparation method of titanium dioxide |
| CN106241868A (en) * | 2016-08-31 | 2016-12-21 | 攀枝花大互通钛业有限公司 | A kind of titanium dioxide and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467121A (en) * | 2018-12-26 | 2019-03-15 | 江苏中研创星材料科技有限公司 | The method of the removal of impurities of metatitanic acid |
| CN110357153A (en) * | 2019-08-15 | 2019-10-22 | 攀枝花学院 | The method that industrial metatitanic acid hydro-thermal prepares high-purity titanium dioxide |
| CN110357153B (en) * | 2019-08-15 | 2021-08-03 | 攀枝花学院 | Method for preparing high-purity titanium dioxide by using industrial metatitanic acid hydrothermal method |
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Application publication date: 20180508 |