CN103754931A - Preparation method for TiO2 powders - Google Patents

Preparation method for TiO2 powders Download PDF

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CN103754931A
CN103754931A CN201410054748.XA CN201410054748A CN103754931A CN 103754931 A CN103754931 A CN 103754931A CN 201410054748 A CN201410054748 A CN 201410054748A CN 103754931 A CN103754931 A CN 103754931A
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tio
powder
mixture
preparation
solid
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CN103754931B (en
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刘瑞
章林
史春华
龚龙江
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GUIZHOU WANFANG ALUMINUM SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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GUIZHOU WANFANG ALUMINUM SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The invention relates to the field of chemical engineering, and particularly relates to a preparation method for TiO2 powders. The preparation method comprises the following steps: mixing a titaniferous metallic oxide or a titaniferous raw mineral material with fluoride to obtain a mixture; reacting the mixture to obtain mixed gases; cooling the mixed gases to 500 DEG C for gas-solid separation to remove deposited solids; continuously cooling the mixed gases to 300 DEG C to obtain solid TiF4; gasifying the solid TiF4 to obtain gaseous TiF4; introducing water vapor into the gaseous TiF4 for hydrolyzation to obtain solid and gaseous mixtures containing TiO2 and HF; cooling the solid and gaseous mixtures containing TiO2 and HF to obtain TiO2 particles; preparing the TiO2 particles into TiO2 powders. According to the invention, the titanium source adopted in the preparation method is the titaniferous metallic oxide or the titaniferous raw mineral material, and is much cheaper than traditional titanium sources, so that the preparation cost of the TiO2 powders is lowered.

Description

TiO 2the preparation method of powder
Technical field
The present invention relates to chemical field, in particular to a kind of TiO 2the preparation method of powder.
Background technology
TiO 2having nontoxic, splendid opacity, splendid whiteness and luminance brightness, is a kind of white pigment that performance is fabulous, can be applied to widely in every profession and trade field.
In correlation technique, common TiO 2the preparation of powder can be divided into three kinds of solid phase method, vapor phase process and liquid phase methods.Solid phase method comprises high-energy ball milling method, mechanical crushing method etc.; Apply less; Vapor phase process comprises plasma method, laser chemistry method, sputtering method, gas phase hydrolysis method etc.; Liquid phase method comprises hydrothermal method, hydrolysis method, the precipitator method, sol-gel method etc.; Typically, owing to being convenient to control condition, at preparation TiO 2during powder, often adopt liquid phase method.
But, in correlation technique, use Liquid preparation methods TiO 2during powder, the titanium source conventionally adopting is titanium alkoxide, titanium sulfate, titanyl sulfate, titanium tetrachloride, metatitanic acid or metal titanium, and the price of these raw materials is all somewhat expensive, and then makes TiO 2the cost of manufacture of powder is higher.
Summary of the invention
The object of the present invention is to provide a kind of TiO 2the preparation method of powder, to solve the above problems.
A kind of TiO is provided in embodiments of the invention 2the preparation method of powder, comprises the following steps:
The metal oxide of titaniferous or titaniferous ore raw material are mixed with fluorochemical, obtain mixture;
Described mixture is reacted, obtain mixed gas;
Described mixed gas is cooled to 500 ℃, and gas solid separation is removed the solid depositing;
Described mixed gas is continued to be cooled to 300 ℃, obtain solid-state TiF 4;
By described solid-state TiF 4gasification, obtains gaseous state TiF 4;
At described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Described in inciting somebody to action, contain TiO 2cooling with the solids and gas mixture of HF, obtain TiO 2particle, and make TiO 2powder.
This TiO provided by the invention 2the preparation method of powder, reacts by the mixture that the metal oxide of titaniferous or titaniferous ore raw material are mixed with fluorochemical, obtains containing gaseous state TiF 4mixed gas, this mixed gas is cooled to 300 ℃, obtain solid-state TiF 4; When fluorochemical is hydrofluoric acid, directly at the temperature of 100-200 ℃, react 3 hours-15 hours, obtain solid-state TiF 4; By solid-state TiF 4gasification, obtains gaseous state TiF 4.Again by the TiF of gaseous state 4pass into water vapour and be hydrolyzed, and then obtained TiO 2solids and gas mixture with HF; By TiO 2by cooling, and then obtained TiO with the solids and gas mixture of HF 2particle, by TiO 2particle is made TiO again 2powder.
The method is at preparation TiO 2in the process of powder, metal oxide or titaniferous ore raw material that its titanium source used is titaniferous, the metal oxide of titaniferous or titaniferous ore cost of material are than traditional titanium source (titanium alkoxide, titanium sulfate, titanyl sulfate, titanium tetrachloride, metatitanic acid, or directly adopt metal titanium) cheap many, and then reduced TiO 2the preparation cost of powder.
Accompanying drawing explanation
Fig. 1 shows the TiO that the embodiment of the present invention one provides 2the preparation method's of powder schema;
Fig. 2 shows the TiO that the embodiment of the present invention two provides 2the preparation method's of powder schema;
Fig. 3 shows the TiO that the embodiment of the present invention three provides 2the preparation method's of powder schema;
Fig. 4 shows the TiO that the embodiment of the present invention four provides 2the preparation method's of powder schema.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.
A kind of TiO is provided in embodiments of the invention 2the preparation method of powder, comprises the following steps:
Step 101: the metal oxide of titaniferous or titaniferous ore raw material are mixed with fluorochemical, obtain mixture;
The metal oxide of cheap titaniferous or titaniferous ore raw material are mixed with fluorochemical, and then obtain raw material to be calcined, to carry out follow-up preparation manipulation.
Step 102: described mixture is reacted, obtain mixed gas.
After obtaining mixed gas, concrete, mixed gas is cooled to 500 ℃, gas solid separation is removed the solid depositing, then the mixed gas of having removed solid is continued to be cooled to 300 ℃ of left and right, and gas solid separation obtains solid-state TiF 4, solid-state TiF 4can further gasify and then obtain gaseous state TiF 4.
Reaction for hydrofluoric acid as fluorochemical, after the metal oxide of cheap titaniferous or titaniferous ore raw material mix with fluorochemical, at 100 ℃-200 ℃, reaction obtains solid-state TiF 4, solid-state TiF 4further gasify and then obtain gaseous state TiF 4.
Step 103: at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Step 104: contain TiO described in inciting somebody to action 2cooling with the solids and gas mixture of HF, obtain TiO 2particle, and make TiO 2powder.
In step 104, will contain TiO 2carry out coolingly with the solids and gas mixture of HF, and then make TiO 2with the TiO in the solids and gas mixture of HF 2crystallization also forms TiO 2particle, TiO 2particle can obtain TiO after sequence of operations 2powder.
In order to make the TiO of the embodiment of the present invention one 2the preparation method of powder is better applied, and is more effectively applied to and prepares nano level TiO 2in the process of powder, above-mentioned all operations can also specifically operate according to following step, are now described in detail and explain:
Step 201: the metal oxide of titaniferous or titaniferous ore raw material are mixed with fluorochemical, obtain mixture;
In step 201, for ease of realizing the operation mixing, the metal oxide of titaniferous or titaniferous ore raw material and solid-state fluoride are preferably particle or Powdered, and liquid fluorochemical is that concentration is the HF solution of 25-40%.Generally speaking, the metal oxide of titaniferous or titaniferous ore raw material can be the mineral of titaniferous; For example described titaniferous ore raw material comprises bauxitic clay, ilmenite, ilmenite concentrate, titanomagnetite or titanium slag, and the metal oxide of titaniferous comprises that particle diameter is 95-105 object particulate state TiO 2or containing TiO 2waste material; Titanium content in metal oxide or the titaniferous ore of titaniferous is high, and then is beneficial to increase TiO 2powder output; In addition,, in order to make the reaction in calcination process be easy to occur, the fluorochemical in above-described embodiment can be preferably: NH 4hF 2, CaF 2, NaF, NH 4f or AlF 3.
And in order to make the metal oxide of above-mentioned titaniferous or titaniferous ore and solid-state fluoride after composition mixture, in the process of reaction, can react completely as much as possible, preferred, the weight percentage that fluorochemical accounts for described mixture is 20%-80%.
In addition, the metal oxide of above-mentioned titaniferous or titaniferous ore and fluorochemical, when composition mixture, can mix, and the particle diameter of the metal oxide of preferred titaniferous or titaniferous ore and fluorochemical (the HF solution that eliminating concentration is 25-40%) is less than 3 millimeters.
Step 202: described mixture is reacted, obtain mixed gas, mixed gas is cooled to 300 ℃, obtain solid-state TiF 4, by solid-state TiF 4gasification, obtains gaseous state TiF 4;
In this step, when described fluorochemical specifically comprises NH 4hF 2, CaF 2, NaF, NH 4f or AlF 3time, described step is reacted described mixture, obtains mixed gas and specifically comprises: by described mixture, in temperature, be at 600 ℃-1300 ℃, to calcine 3 hours-15 hours, obtain mixed gas.When described fluorochemical specifically comprises that concentration is the HF solution of 25-40%, described step is reacted described mixture, obtains mixed gas and specifically comprises: described mixture is reacted at the temperature of 100-200 ℃ 3 hours-15 hours, obtain solid-state TiF 4.
In the process that mixture is calcined, the temperature of preferred calcining is 600-1300 ℃, and the time of described calcining is 3-15 hour, and under this condition, calcining effect is better, and mixture more easily reacts.Meanwhile, preferred, by the process of mixture calcining, be chosen in air atmosphere and calcine, in air atmosphere, by mixture calcining, be beneficial to and improve gaseous state TiF 4output.
When fluorochemical is hydrofluoric acid solution, now temperature of reaction is preferably: 100-200 ℃, the reaction times is 3-15 hour.Now obtain solid-state TiF 4, by this solid-state TiF 4further gasification is gaseous state TiF 4.In addition, in above-mentioned step, by solid-state TiF 4the temperature gasifying is controlled at 400-900 ℃, in this temperature range, and solid-state TiF 4annoying formation gas, to carry out follow-up hydrolysis reaction.
In addition, in this step, the metal oxide of titaniferous or titaniferous ore or fluorochemical are in the process of calcining or reaction, and the chemical reaction of its generation is as follows:
M xO y·nTiO 2+AF z→M xO y+A 2O z+TiF 4↑
Step 203: at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
In this step, TiF 4the reaction equation that hydrolysis occurs is as follows:
TiF 4+2H 2O→TiO 2+4HF
Step 204: contain TiO described in inciting somebody to action 2cooling with the solids and gas mixture of HF, obtain TiO 2particle, and make TiO 2powder;
Can step 203 and step 204 processing condition in concrete preparation process for forming nano level TiO 2(particle size range is 5-100nm) has larger impact.Concrete, in hydrolytic process, volume and the gaseous state TiF of preferred water vapour 4volume ratio be 2-100; The temperature of described hydrolysis is 400 ℃-900 ℃.Under this condition; On the one hand, be beneficial to TiF 4complete hydrolysis also generates TiO 2particle, on the other hand, it is beneficial to and in subsequent operations, forms the TiO that particle diameter is 5-100nm 2powder.
In step 204, cooling speed is for nano level TiO 2the formation of particle has larger impact, concrete, in this step, preferably to the TiO forming 2carry out quench operation, for example, rate of cooling is 50-200 ℃/min; And then make the TiO in solids and gas mixture 2crystallization rapidly, to form the TiO of different-grain diameter 2particle; In the process of quenching, owing to may there being the gas mixture of water vapour or other low dew points in reaction system; Therefore, will contain TiO 2carry out in cooling operation with the solids and gas mixture of HF, its cooled temperature is preferably 100 ℃-150 ℃, the dew point in this temperature range higher than water vapour, and the water in system still exists with the form of water vapour, can't condense into liquid; Therefore, by aforesaid operations, can overcome water in system or the gas mixture of low dew point can make TiO 2the defect that particle makes moist.
In addition, obtain TiO 2after particle, can by the step of gathering, separation and depickling, obtain TiO successively 2powder.
Step 203 to 204 in, processing parameters such as content by water vapour in controlled hydrolysis process, hydrolysis temperature, rate of cooling and then reach and control TiO 2the nucleation and growth speed of particle, thus the TiO of particle diameter within the scope of 5-100nm obtained 2particle.
Nano level TiO 2powder has the characteristic of the aspects such as peculiar colour effect, preferably thermostability, chemical stability and good optics, electricity and mechanics.Utilize photocatalysis characteristic, can be used for processing waste water; Utilize the ability of its transparency and scatters ultraviolet, can make the sunscreen of packaging material for food, woodenware protective paint, regenerated fiber additive, makeup etc.; Utilize its photoconductivity and scarce photosensitivity, can develop a kind of titanium dioxide sensitive materials.In addition nano level TiO, 2powder is with a wide range of applications in fields such as support of the catalyst, UV light absorber, efficient light-sensitive catalyst, plastic membrane product, water treatment, fine ceramics, ecological ceramic and gas sensor elements.
In addition, on the basis of above-mentioned steps, the present invention also provides following specific embodiment, please refer to Fig. 1-Fig. 4:
Embodiment 1
Step 301: particle diameter is to 0.03-3mm coarse particles TiO 2and NH 4f mixes, and obtains mixture;
Wherein, described NH 4the weight percentage that F accounts for described mixture is 80%;
Step 302: described mixture, 600 ℃ of calcinings 3 hours, is obtained to mixed gas, mixed gas is cooled to 300 ℃, obtain solid-state TiF 4, by solid-state TiF 4gasification, obtains gaseous state TiF 4;
In the process of cooling, in mixed gas, only has TiF 4with solid form, separate out, gas solid separation obtains solid-state TiF 4, further gasification obtains gaseous state TiF 4.
Step 303: at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Wherein, the volume of described water vapour and gaseous state TiF 4volume ratio be 1-20, the temperature of described hydrolysis is 900 ℃;
Step 304: contain TiO described in inciting somebody to action 2cooling with the speed of 200 ℃/min with the solids and gas mixture of HF, obtain fine grain size TiO 2particle, and make TiO 2powder;
The particle diameter of the powder that this embodiment makes is about 63-87 nanometers.
In the present embodiment, the chemical reaction of generation is as follows:
TiO 2+4NH 4F→TiF 4↑+4NH 3↑+2H 2O
TiF 4+2H 2O→TiO 2+4HF
Embodiment 2
Step 401: particle diameter is to 0.06-3mm bauxitic clay (Al 2o 3mSiO 2nTiO 2) and AlF 3mix, obtain mixture;
Wherein, described AlF 3the weight percentage that accounts for described mixture is 60%;
Step 402: described mixture, 800 ℃ of calcinings 5 hours, is obtained to mixed gas, mixed gas is cooled to 300 ℃, obtain solid-state TiF 4, by solid-state TiF 4gasification, obtains gaseous state TiF 4.
In the process of cooling, in mixed gas, only has TiF 4with solid form, separate out, gas solid separation obtains solid-state TiF 4, further gasification obtains gaseous state TiF 4.
Step 403: at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Wherein, the volume of described water vapour and gaseous state TiF 4volume ratio be 20-80, the temperature of described hydrolysis is 800 ℃;
Step 404: contain TiO described in inciting somebody to action 2cooling with the speed of 150 ℃/min with the solids and gas mixture of HF, obtain fine grain size TiO 2particle, and make TiO 2powder;
Its particle diameter that this embodiment makes is about 12-33 nanometers.
In the present embodiment, the chemical reaction of generation is as follows:
3TiO 2+4AlF 3·3H 2O→2Al 2O 3+3TiF 4↑+12H 2O
TiF 4+2H 2O→TiO 2+4HF
Embodiment 3
Step 501: the coarse-grain TiO that particle diameter is to 0.08-3mm 2with CaF 2mix, obtain mixture;
Wherein, described CaF 2the weight percentage that accounts for described mixture is 40%;
Step 502: described mixture, 1100 ℃ of calcinings 15 hours, is obtained to mixed gas, mixed gas is cooled to 300 ℃, obtain solid-state TiF 4, by solid-state TiF 4gasification, obtains gaseous state TiF 4.
In the process of cooling, in mixed gas, only has TiF 4with solid form, separate out, gas solid separation obtains solid-state TiF 4, further gasification obtains gaseous state TiF 4.
Step 503: at described gaseous state TiF 4pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Wherein, the volume of described water vapour and gaseous state TiF 4volume ratio be 80-100, the temperature of described hydrolysis is 700 ℃;
Step 504: contain TiO described in inciting somebody to action 2cooling with the speed of 100 ℃/min with the solids and gas mixture of HF, obtain fine grain size TiO 2particle, and make TiO 2powder;
The particle diameter of the powder that this embodiment makes is about 36-54 nanometers.
In the present embodiment, the chemical reaction of generation is as follows:
TiO 2+2CaF 2→TiF 4↑+2CaO
TiF 4+2H 2O→TiO 2+4HF
Embodiment 4
Step 601: the titanomagnetite (Fe that particle diameter is to 0.1-3mm 2o 3nTiO 2) mix with NaF, obtain mixture;
Wherein, to account for the weight percentage of described mixture be 20% to described NaF;
Step 602: described mixture, 1300 ℃ of calcinings 10 hours, is obtained to mixed gas, mixed gas is cooled to 300 ℃, obtain solid-state TiF 4, by solid-state TiF 4gasification, obtains gaseous state TiF 4.
In the process of cooling, in mixed gas, only has TiF 4with solid form, separate out, gas solid separation obtains solid-state TiF 4, further gasification obtains gaseous state TiF 4.
Step 603: at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Wherein, described water vapour and described gaseous state TiF 4volume equate, the temperature of described hydrolysis is 800 ℃;
Step 604: contain TiO described in inciting somebody to action 2cooling with the speed of 50 ℃/min with the solids and gas mixture of HF, obtain fine grain size TiO 2particle, and make TiO 2powder;
The particle diameter of the powder that this embodiment makes is about 31-85 nanometers.
In the present embodiment, the chemical reaction of generation is as follows:
TiO 2+4NaF+2H 2O→TiF 4↑+4NaOH
TiF 4+2H 2O→TiO 2+4HF
The Data Comparison table of the each embodiment of table 1
Figure BDA0000467018040000101
Figure BDA0000467018040000111
By table 1, can find out the TiO that the embodiment of the present invention provides 2the method of powder preparation has low cost, high quality, high yield, high purity texts.
To sum up, this TiO provided by the invention 2the preparation method of powder has: the effect that processing step is few, simple to operate, cost is low.And the processing parameters such as content, hydrolysis temperature and the rate of cooling by water vapour in controlled hydrolysis process, can obtain the TiO of particle size range at 5-500nm 2powder.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

1. a TiO 2the preparation method of powder, is characterized in that, comprises the following steps:
The metal oxide of titaniferous or titaniferous ore raw material are mixed with fluorochemical, obtain mixture;
Described mixture is reacted, obtain mixed gas;
Described mixed gas is cooled to 500 ℃, and gas solid separation is removed the solid depositing;
Described mixed gas is continued to be cooled to 300 ℃, obtain solid-state TiF 4;
By described solid-state TiF 4gasification, obtains gaseous state TiF 4;
At described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2solids and gas mixture with HF;
Described in inciting somebody to action, contain TiO 2cooling with the solids and gas mixture of HF, obtain TiO 2particle, and make TiO 2powder.
2. TiO according to claim 1 2the preparation method of powder, is characterized in that, described, the metal oxide of titaniferous or titaniferous ore raw material is mixed with fluorochemical, obtains in the step of mixture:
The weight percentage that described fluorochemical accounts for described mixture is 20%-80%.
3. TiO according to claim 2 2the preparation method of powder, is characterized in that,
Described titaniferous ore raw material comprises bauxitic clay, ilmenite, titanomagnetite, ilmenite concentrate, titanium slag; The metal oxide of described titaniferous comprises that particle diameter is 95-105 object particulate state TiO 2.
4. TiO according to claim 3 2the preparation method of powder, is characterized in that, described fluorochemical comprises: HF solution, NH that concentration is 25-40% 4hF 2, CaF 2, NaF, NH 4f or AlF 3.
5. TiO according to claim 4 2the preparation method of powder, is characterized in that, when described fluorochemical comprises NH 4hF 2, CaF 2, NaF, NH 4f or AlF 3time, described step is reacted described mixture, obtains mixed gas and specifically comprises:
By described mixture, in temperature, be at 600 ℃-1300 ℃, to calcine 3 hours-15 hours, obtain mixed gas.
6. TiO according to claim 4 2the preparation method of powder, is characterized in that, when described fluorochemical comprises that concentration is the HF solution of 25-40%, described step is reacted described mixture, obtains mixed gas and specifically comprises:
Described mixture is reacted at the temperature of 100-200 ℃ 3 hours-15 hours, obtain solid-state TiF 4.
7. according to the TiO described in claim 1-6 any one 2the preparation method of powder, is characterized in that, described by described solid-state TiF 4gasification, obtains gaseous state TiF 4step in; The temperature of described gasification is: 400 ℃-900 ℃.
8. TiO according to claim 7 2the preparation method of powder, is characterized in that, at described gaseous state TiF 4in pass into water vapour, and be hydrolyzed, obtain containing TiO 2in the step of the solids and gas mixture of HF:
The volume of described water vapour and gaseous state TiF 4volume ratio be 2-100;
The temperature of described hydrolysis is 400 ℃-900 ℃;
Described in inciting somebody to action, contain TiO 2cooling with the solids and gas mixture of HF, obtain TiO2 particle, and make TiO 2in the step of powder:
Described cooling comprise take speed as 50 ℃/min-200 ℃/min will described in contain TiO 2be cooled to 100 ℃-150 ℃ with the solids and gas mixture of HF.
9. TiO according to claim 4 2the preparation method of powder, is characterized in that, the particle diameter of the metal oxide of described titaniferous is less than 3 millimeters; Described NH 4hF 2, CaF 2, NaF, NH 4f or AlF 3particle diameter be less than 3 millimeters.
10. TiO according to claim 9 2the preparation method of powder, is characterized in that, described in inciting somebody to action, contains TiO 2cooling with the solids and gas mixture of HF, obtain TiO 2particle, and make TiO 2in the step of powder, specifically comprise:
Described in inciting somebody to action, contain TiO 2cooling with the solids and gas mixture of HF, obtain TiO 2particle;
By described TiO 2particle obtains TiO after by gathering, separation and depickling 2powder.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803414A (en) * 2015-03-16 2015-07-29 多氟多化工股份有限公司 Preparation method of titanium dioxide
CN104803413A (en) * 2015-03-16 2015-07-29 多氟多化工股份有限公司 Preparation method of titanium tetrafluoride
CN111989413A (en) * 2017-07-11 2020-11-24 泰尼尔项目管理有限公司 Method for processing titanomagnetite ore material
CN114477280A (en) * 2020-10-27 2022-05-13 中国科学院过程工程研究所 Method for preparing nano titanium dioxide by fluorination method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2060861A1 (en) * 1969-12-11 1971-06-24 Conzinc Riotinto Ltd Process for processing titanium-containing ores
US3919388A (en) * 1972-08-18 1975-11-11 British Titan Ltd Process for production of pigmentary titanium dioxide
CN101111456A (en) * 2005-01-24 2008-01-23 百利通有限公司 A process for the production of titanium dioxide using aqueous fluoride

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2060861A1 (en) * 1969-12-11 1971-06-24 Conzinc Riotinto Ltd Process for processing titanium-containing ores
US3919388A (en) * 1972-08-18 1975-11-11 British Titan Ltd Process for production of pigmentary titanium dioxide
CN101111456A (en) * 2005-01-24 2008-01-23 百利通有限公司 A process for the production of titanium dioxide using aqueous fluoride

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803414A (en) * 2015-03-16 2015-07-29 多氟多化工股份有限公司 Preparation method of titanium dioxide
CN104803413A (en) * 2015-03-16 2015-07-29 多氟多化工股份有限公司 Preparation method of titanium tetrafluoride
CN111989413A (en) * 2017-07-11 2020-11-24 泰尼尔项目管理有限公司 Method for processing titanomagnetite ore material
CN114477280A (en) * 2020-10-27 2022-05-13 中国科学院过程工程研究所 Method for preparing nano titanium dioxide by fluorination method
CN114477280B (en) * 2020-10-27 2023-04-28 中国科学院过程工程研究所 Method for preparing nano titanium dioxide by fluorination method

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