CN110418852A - The method containing Titanium slag of processing - Google Patents
The method containing Titanium slag of processing Download PDFInfo
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- CN110418852A CN110418852A CN201780087625.8A CN201780087625A CN110418852A CN 110418852 A CN110418852 A CN 110418852A CN 201780087625 A CN201780087625 A CN 201780087625A CN 110418852 A CN110418852 A CN 110418852A
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- sulfuric acid
- weight
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- leaching solution
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
It discloses for handling the method and apparatus containing Titanium slag.This method comprises: making to contact containing Titanium slag (2) with the first sulfuric acid leaching solution (4) for dissolving the impurity contained in slag to obtain the first slurry.In this method, (10) are separated by solid-liquid separation to first slurry (8) to obtain containing the first sulfuric acid leaching solution for leaching dissolved impurity in residue (12) from the first titaniferous.
Description
Invention field
The present invention relates to method and apparatus of the processing containing Titanium slag.
Background technique
Contain ilmenite concentrate (such as magnetic iron ore) from smelting usually as by-product containing Titanium slag (such as titanium dioxide slag)
It is obtained in technique.In addition to titanium, slag often contains impurity, such as aluminium, magnesium, calcium and silica.It is answered Titanium slag will be contained
Before coloring process, the impurity part for needing to contain in slag removes and thus improves Ti content.
Routinely, it has been suggested that alkali process is to improve the titanium oxide content containing Titanium slag.Especially with alkali process with from
Silica is removed in slag.According to Liu et al. people " Kinetics on the desiliconization during
Alkaline leaching of titanium slag ", Advanced Materials Research, the 233-235 volumes,
2011,1322-1327 pages, alkali process had been greater than 100 DEG C usually using soda lye in hydrometallurgical operations
At a temperature of carry out.The alkali of high concentration is needed so that silica is dissolved from slag.Alkali process can also be dried by pyrometallurgy
Roasting technique carries out, which may require up to 1000 DEG C of operation temperature.According to Dong et al. " Upgrading of a
113-114 volumes of process ", Hydrometallurgy, the, 2012 years, 119-121 pages of Ti-slag by roast-leach
With Lasheen T.A., " Soda ash roasting of titania slag product from Rosetta
Ilmenite ", Hydrometallurgy, 2008,124-128 pages, carry out hydrometallurgy at volume 93 after baking process
Extract technology.
It the use of the shortcomings that sodium hydroxide is that sodium hydroxide can be consequently formed and be difficult to from dioxy with aluminium and silicon dioxde reaction
Change the lagoriolite precipitate removed in titanium solid.
Summary of the invention
Therefore, the purpose of the present invention is to provide a kind of method and apparatus for carrying out the method, to alleviate in slag
There are impurity bring is unfavorable.The purpose of the present invention is by being characterized in that method and apparatus described in independent claims come real
It is existing.Preferred embodiment is disclosed in the dependent claims.
Method, which is included under conditions of only impurity is leached, leaches slag, and titanium (such as titanium dioxide form) is retained in
In solid forms.In addition, the condition of this method prevents silica dioxide gel, therefore become from infusion solution separation solid matter
More easily.In the method, thus (usually titanium dioxide slag) containing Titanium slag is leached in quite dilute sulfuric acid solution makes
Impurity in slag dissolves and retains titanium (usually titanium dioxide) in solids.Solid containing titanium can promptly with leaching
It is separated out to the impurity of sulfuric acid solution.This method can carry out under atmospheric conditions (i.e. atmospheric pressure) and boiling point lower than solution.
The advantages of this method and device, is to contain only undesirable impurity quilt in Titanium slag by being leached with dilution heat of sulfuric acid
Dissolution, titanium (usually titanium dioxide) remain in solid forms.Another advantage is that the density of slurry in leaching step makes
The impurity (such as aluminium, magnesium, calcium and silica) contained in slag is able to enter infusion solution.In other words, infusion solution
Soluble product does not prevent the leaching of impurity.Other than dissolving titanium compound, higher sulfuric acid concentration also has and makes from slag
The shortcomings that silica dioxide gel of middle dissolution.The correct parameter by using this method has been also unexpectedly found that it, this can
It is prevented from.Another advantage is that method carries out in atmospheric conditions, brings economy.
Detailed description of the invention
Passing through preferred embodiment below with reference to attached drawing, the present invention will be described in more detail, wherein
Fig. 1 is example implementation of the invention, and the further optional example of the present invention including being represented by dashed line is implemented
Scheme,
Fig. 2 shows the mass fractions of titanium and titanium dioxide in the solid after leaching in embodiment A.
Summary of the invention
Embodiment is related to for by containing from the processing for removing the titanium concentration in impurity and thus raising slag in slag
The method of Titanium slag.In general, titanium is in titanium dioxide (TiO2) form.
Processing the method containing Titanium slag include:
A) make to contact containing Titanium slag with the first sulfuric acid leaching solution for dissolving the impurity contained in the slag to obtain
First slurry,
B) first slurry is separated by solid-liquid separation, to obtain containing the dissolved impurity from the first titaniferous leaching residue
The first sulfuric acid leaching solution.
Ingredient containing Titanium slag is according to mineral resources and obtains the technique of slag and changes.Content containing titanium dioxide in Titanium slag
Usually in the range of 45 to 55 weight %.Major impurity such as SiO2And Al2O3Content usually respectively in 5 to 15 weight %
In the range of 10 to 20 weight %.Slag is usually ground to suitable partial size before carrying out leaching step.
In general, the first sulfuric acid leaching in step a) improves the content of titanium dioxide in slag (solids) to about 70
Weight % or even 73 weight %.Content of titanium dioxide in final product is selected by using suitable technological parameter, and
Requirement depending on subsequent process steps.
In first step a), usually make under mixing containing Titanium slag and sulfuric acid contact.The concentration of sulfuric acid is usual in solution
It in the range of 2 to 20 weight %, more generally 3 to 15 weight %, or even is more typically in the range of 5 to 15 weight %, even
It is more typically in the range of 8 to 12 weight %.Leach lower than solution boiling point at a temperature of carry out, usually lower than 100 DEG C
At a temperature of carry out.The temperature of usual infusion solution is at 40 DEG C between the boiling point of solution.Raised temperature enhances impurity from slag
In leaching.Pressure remains atmospheric pressure during leaching step.The retention time of step a) is usually in 6-30h, usual 10-
In the range of 20h.By using the gelation for the silica that the suitable retention time can avoid leaching from slag.Titanium dioxide
When the gelation of silicon can avoid, separation of solid and liquid is easier to carry out.
In leaching process, most of in the aluminium, magnesium, calcium and the silica that contain in slag are dissolved into sulfuric acid from slag
In infusion solution.However, titanium is not dissolved, is remained in slag.After the suitable retention time of leaching, solid-liquid point is carried out
From step b).It is usually separated by solid-liquid separation and is carried out by arbitrary appropriate method known in the art, such as filter.
If it is desire to the content of titanium dioxide in slag is increased to greater than 70 weight %, this method may include further
Sulfuric acid leaching step.
Other than in addition to step a) and b), this method can further include:
C) make titaniferous leach residue and contact with the second sulfuric acid leaching solution to contain for dissolving in titaniferous leaching residue
Impurity to obtain the second slurry,
D) the second slurry is carried out being separated by solid-liquid separation to obtain containing the dissolved impurity from the second titaniferous leaching residue
Second sulfuric acid leaching solution.
The concentration of sulfuric acid can be selected independently in first and second sulfuric acid leaching solution, and usually 2 to 20 weight %,
In the range of more generally 3 to 15 weight %, or even it is more typically in the range of 5 to 15 weight %, or even be more typically in 8 to 12 weights
In the range of amount %.Leaching in existing sulfuric acid concentration has and makes metal impurities especially SiO2The effect of dissolution.Change sentence
It talks about, sulfuric acid concentration is in suitable level so that SiO2Dissolution it is unobstructed, and on the other hand for dissolution Al, Mg, Ca,
Fe etc. is sufficiently high.
According to an embodiment, in the first and second infusion solutions the concentration of sulfuric acid substantially in identical level.According to
Another embodiment, concentration of the concentration of sulfuric acid lower than sulfuric acid in the first infusion solution in the second infusion solution.With this side
Formula, second leach in the removing of impurity enhanced, and avoid titanium and dissolved from slag.It may remaining SiO2
It is removed in two leaching steps.And remaining metal impurities are also further leached.If sulfuric acid in the second infusion solution
Concentration is too high, then titanium loss occurs since titanium is dissolved from slag.In general, the first leaching step a) includes infusion solution,
Middle sulfuric acid concentration is higher than the second leaching step, for example, 2 to 20 weight %, more generally 3 to 15 weight %, is even more typically in 5
To 15 weight %, or even it is more typically in the range of 8 to 12 weight %.Sulfuric acid concentration in first leaching step is also
It can be in the range of 5 to 10 weight %.In general, in the second leaching step c), select the sulfuric acid concentration of the second infusion solution with
Make it below the sulfuric acid concentration in first step, such as 2 to 10 weight %, usual 2 to 7 weight %, more generally 2 to 5 weight %.
Sulfuric acid concentration is selected usually out of existing range so that they are substantially in identical horizontal or the second infusion solution sulfuric acid
Concentration is lower than the sulfuric acid concentration of the first infusion solution.According to an embodiment, the first leaching step a) includes infusion solution,
Middle sulfuric acid concentration is 10 weight %, and the second leaching step c) includes infusion solution, and wherein sulfuric acid concentration is 5 weight %.
In general, the temperature of the first and second sulfuric acid leaching solution is independently selected as the boiling point lower than solution, it is usually low
In 100 DEG C of temperature.The temperature of usual infusion solution is maintained at 40 DEG C between the boiling point of solution.
In general, step a) and retention time c) are independently selected as in the range of 6-30h, usual 10-20h.
In addition, in general, step b) and d) in separation of solid and liquid independently selected from arbitrary suitable side known in the art
Method, such as filter.
After the second sulfuric acid leaching step, the content of titanium dioxide in slag solid is improved to about 73-76 weight %.
One embodiment discloses a kind of equipment of the processing containing Titanium slag, and wherein the equipment includes:
A) first unit is leached, contained wherein making to contact containing Titanium slag with the first sulfuric acid leaching solution for dissolving in slag
Impurity to obtain the first slurry,
B) the first solid-liquid separation unit, wherein carrying out being separated by solid-liquid separation to obtain to contain from the first titaniferous soaking to the first slurry
Out in residue dissolved impurity the first sulfuric acid leaching solution.
The equipment also can further include:
C) second unit is leached, is contacted with the second sulfuric acid leaching solution for dissolving the titaniferous wherein titaniferous is made to leach residue
The impurity that contains is leached in residue to obtain the second slurry,
D) the second solid-liquid separation unit, wherein carrying out being separated by solid-liquid separation to obtain to contain from the second titaniferous soaking to the second slurry
Out in residue dissolved impurity the second sulfuric acid leaching solution.
In general, in the device, the concentration of sulfuric acid is selected independently in the first and second sulfuric acid leaching solution, and usually
It in the range of 2 to 20 weight %, more generally 3 to 15 weight %, or even is more typically in the range of 5 to 15 weight %, even
It is more typically in the range of 8 to 12 weight %.In general, the first leaching unit a) includes infusion solution, wherein sulfuric acid concentration is higher than
Second leaches unit, such as 5 to 15 weight %, usual 5 to 10 weight %.In general, leaching in unit second, the second leaching is molten
The sulfuric acid concentration of liquid is lower than in first unit, such as 2 to 10 weight %, usual 2 to 7 weight %, more generally 2 to 5 weight %.Root
According to an embodiment, first and second leach the concentration of sulfuric acid in unit substantially in identical level.According to another implementation
Scheme, the sulfuric acid concentration in the second infusion solution is lower than the sulfuric acid concentration in the first infusion solution.In this way, it second leaches
The removing of middle impurity is improved, and is avoided titanium and dissolved from slag.If sulfuric acid concentration is too high in the second infusion solution,
Titanium loss then occurs since titanium is dissolved from slag.Usually from existing range select sulfuric acid concentration so that they substantially
It is lower than the sulfuric acid concentration of the first infusion solution in identical horizontal or the second infusion solution sulfuric acid concentration.Implemented according to one
Scheme, the first leaching step a) includes infusion solution, and wherein sulfuric acid concentration is 10 weight %, and the second leaching step c) includes
Infusion solution, wherein sulfuric acid concentration is 5 weight %.
In general, the temperature of the first and second sulfuric acid leaching solution is independently selected as the boiling point lower than solution, it is usually low
In 100 DEG C of temperature.In general, the temperature of infusion solution is maintained at 40 DEG C between the boiling point of solution.
Description of symbols
2 contain Titanium slag
4 first sulfuric acid solutions
6 first leaching steps
8 first slurries
10 first solid-liquid separation steps
12 have the leaching residue of the Ti content improved
14 second leaching steps
16 second sulfuric acid solutions
18 second slurries
20 second solid-liquid separation steps
22 have the final product of the Ti content improved
Fig. 1 illustrates exemplary implementation scheme.In Fig. 1, the is carried out to containing Titanium slag 2 in the presence of the first sulfuric acid solution
One leaching step 6.It can will contain Titanium slag before carrying out the first leaching step 6 and be ground to suitable partial size.Temperature remains low
The boiling point of infusion solution, pressure remain atmospheric pressure in the first leaching step.The retention time of first leaching step 66 to
Between 30h.Sulfuric acid concentration remains about 10 weight %.In the first leaching step 6, impurity from containing leaching in Titanium slag, by
This formed containing in the first infusion solution in the form of leaching existing for impurity and solid forms slag 8 the first slurry.It is right
First slurry 8 carries out the first solid-liquid separation step 10, usually filters.It obtains from the first solid-liquid separation step with the titanium improved
The leaching residue 12 of content.The second leaching step 14 optionally is carried out to leaching residue 12.Second leaching step is in the second sulphur
It is carried out in the presence of acid solution 16.Temperature is maintained below the boiling point of infusion solution, pressure in the second leaching step and remains greatly
Air pressure.The retention time of second leaching step 14 is 6 between 30h.Sulfuric acid concentration remains about 5 weight %.In the second leaching
Out in step 14, impurity from containing leaching in Titanium slag, be consequently formed containing in the first infusion solution in the form of leaching existing for
Second slurry 18 of the slag of impurity and solid forms.Second solid-liquid separation step 20 is carried out to the second slurry 18, usually
Filter.The final product 22 with the Ti content improved is obtained from the second solid-liquid separation step 20.
Embodiment
Titanium dioxide slag and the sulfuric acid with various concentration are mixed for leaching impurity.Extraction temperature is 90-95 DEG C.It obtains
There must be the final product of following metal concentration.
The composition of final product obtained from the sulfuric acid leaching titanium dioxide slag of table 1..Leach following carry out a: leaching
Step (extraction time is 10h and 12h), 90 DEG C of temperature out.
The composition of final product obtained from the sulfuric acid leaching titanium dioxide slag of table 2..Leach following carry out a: leaching
Step (extraction time is for 24 hours), 90 DEG C of temperature out.
The composition of final product obtained from the sulfuric acid leaching titanium dioxide slag of table 3..Leach following carry out: two leachings
Step (extraction time of each leaching step is 12h), 90 DEG C of temperature out.
Embodiment A: the mass fraction of titanium and titanium dioxide in the solid after leaching is shown in FIG. 2 as follows:
A) titanium dioxide slag, feed material
B) step 1 (5% acid) and step 2 (5% acid),
C) step 1 (5% acid) and step 2 (10% acid),
D) step 1 (10% acid) and step 2 (10% acid),
E) step 1 (5% is sour, for 24 hours extraction time),
F) step 1 (5% acid).
It is obvious to the skilled person that with advances in technology, design of the invention can be with
Various modes are implemented.The present invention and its embodiment are not limited to the above embodiments, and can be changed within the scope of the claims.
Claims (14)
1. the method containing Titanium slag of processing, wherein this method comprises:
A) make to contact containing Titanium slag with the first sulfuric acid leaching solution for dissolving the impurity contained in the slag to obtain first
Slurry,
B) the first slurry is separated by solid-liquid separation, to obtain first containing the dissolved impurity from the first titaniferous leaching residue
Sulfuric acid leaching solution.
2. according to the method described in claim 1, wherein, this method further include:
C) make titaniferous leach residue to be contacted with the second sulfuric acid leaching solution for dissolving the impurity contained in titaniferous leaching residue
To obtain the second slurry,
D) the second slurry is carried out being separated by solid-liquid separation to obtain second containing the dissolved impurity from the second titaniferous leaching residue
Sulfuric acid leaching solution infusion solution.
3. method according to claim 1 or 2, wherein the concentration of sulfuric acid is independent in the first and second sulfuric acid leaching solution
Ground selection, and in the range of 2 to 20 weight %, in the range of more generally 3 to 15 weight %, or even it is more typically in 5 to 15
In the range of weight %, or even it is more typically in the range of 8 to 12 weight %.
4. method according to any of the preceding claims, wherein the concentration of sulfuric acid is logical in the first sulfuric acid leaching solution
Often in the range of 2 to 20 weight %, in the range of more generally 3 to 15 weight %, or even it is more typically in the model of 5 to 15 weight %
It in enclosing, or even is more typically in the range of 8 to 12 weight %, and the concentration of sulfuric acid is lower than first in the second sulfuric acid leaching solution
Sulfuric acid leaching solution and it is selected as 2 to 10 weight %, usual 2 to 7 weight %, more generally 2 to 5 weight %.
5. method according to any of the preceding claims, wherein the temperature of the first and second sulfuric acid leaching solution is only
Habitat location is the boiling point lower than respective solution, and the temperature of usual first and second sulfuric acid leachings solution is independently selected as 40
DEG C between the boiling point of respective solution.
6. method according to any of the preceding claims, wherein step a) and retention time c) are selected independently
For in the range of 6-30h, usual 10-20h.
7. method according to any of the preceding claims, wherein step b) and d) in separation of solid and liquid independently select
From arbitrary suitable method known in the art, such as filter.
8. handling the equipment containing Titanium slag, wherein the equipment includes:
A) first leach unit, wherein make to contact containing Titanium slag with the first sulfuric acid leaching solution for dissolve contain in slag it is miscellaneous
Matter to obtain the first slurry,
B) the first solid-liquid separation unit, wherein carrying out being separated by solid-liquid separation to obtain to contain from the first titaniferous leaching to first slurry
First sulfuric acid leaching solution of dissolved impurity in residue.
9. equipment according to claim 8, wherein the equipment also includes:
C) second unit is leached, wherein the titaniferous is made to leach residue and second at a temperature of at atmosheric pressure and lower than 100 DEG C
The contact of sulfuric acid leaching solution leaches in residue the impurity that contains for dissolving the titaniferous to obtain the second slurry,
D) the second solid-liquid separation unit, wherein carrying out being separated by solid-liquid separation to obtain to contain from the second titaniferous leaching to second slurry
Second sulfuric acid leaching solution of dissolved impurity in residue.
10. equipment according to claim 8 or claim 9, wherein the concentration of sulfuric acid is independent in the first and second sulfuric acid leaching solution
Ground selection, and in the first and second sulfuric acid leachings solution sulfuric acid concentration in the range of 3 to 15 weight %, usually 5
To 10 weight %.
11. the equipment according to any one of preceding claims 8 to 10, wherein sulfuric acid in the first sulfuric acid leaching solution
Concentration is usually in the range of 2 to 20 weight %, more generally 3 to 15 weight %, or even is more typically in the range of 5 to 15 weight %
It is interior, or even be more typically in the range of 8 to 12 weight %, and the concentration of sulfuric acid is 2 to 10 in the second sulfuric acid leaching solution
Weight %, usual 2 to 7 weight %, more generally 2 to 5 weight %.
12. the equipment according to any one of preceding claims 8 to 11, wherein the first and second sulfuric acid leaching solution
Temperature is independently selected as the boiling point lower than respective solution, and the temperature of usual first and second sulfuric acid leachings solution is selected independently
For at 40 DEG C between the boiling point of respective solution.
13. the equipment according to any one of preceding claims 8 to 12, wherein unit a) and c) in retention time it is only
Habitat location is in the range of 6-30h, usual 10-20h.
14. the equipment according to any one of preceding claims 8 to 13, wherein unit b) and d) in separation of solid and liquid it is only
On the spot selected from arbitrary suitable solid-liquid separation unit known in the art, such as filter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FI2017/050137 WO2018158492A1 (en) | 2017-03-02 | 2017-03-02 | Method of treating titanium-containing slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110418852A true CN110418852A (en) | 2019-11-05 |
Family
ID=63370573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780087625.8A Pending CN110418852A (en) | 2017-03-02 | 2017-03-02 | The method containing Titanium slag of processing |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN110418852A (en) |
| CA (1) | CA3054603A1 (en) |
| EA (1) | EA037945B1 (en) |
| NZ (1) | NZ757065A (en) |
| PH (1) | PH12019501948A1 (en) |
| WO (1) | WO2018158492A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111100958B (en) * | 2020-02-15 | 2020-11-24 | 浙江三门太和大型锻造有限公司 | Combustion residue treatment device |
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|---|---|---|---|---|
| US4038363A (en) * | 1975-10-21 | 1977-07-26 | Quebec Iron & Titanium Corporation-Fer Et Titane Due Quebec, Inc. | Upgrading sorelslag for production of synthetic rutile |
| US5085837A (en) * | 1988-07-28 | 1992-02-04 | E. I. Du Pont De Nemours And Company | Method for purifying TiO2 ore by alternate leaching with an aqueous solution of an alkali metal compound and an aqueous solution of mineral acid |
| CN1143394A (en) * | 1994-03-08 | 1997-02-19 | Rgc矿砂有限公司 | Leaching of titaniferous materials |
| CN1148412A (en) * | 1994-04-15 | 1997-04-23 | 技术资源有限公司 | Leaching of titaniferous material |
| CN102171372A (en) * | 2008-09-17 | 2011-08-31 | 美礼联无机化工公司 | Process for recovering a titanium dioxide product |
| CN106232840A (en) * | 2014-03-05 | 2016-12-14 | 福阿德·F·卡迈勒丁 | Senior titania is produced from rudimentary titaniferous ore |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3218131A (en) * | 1961-01-27 | 1965-11-16 | Independence Foundation | Process for recovery of titania values |
| US3368870A (en) * | 1963-12-06 | 1968-02-13 | Soloducha Nicolas | Method of producing titanium hydroxide and high grade pigments produced therefrom |
| CN1165488C (en) * | 1997-05-30 | 2004-09-08 | 凯米克拉夫特海外有限公司 | Continuous non-polluting liquid phase titanium dioxide process |
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2017
- 2017-03-02 CN CN201780087625.8A patent/CN110418852A/en active Pending
- 2017-03-02 CA CA3054603A patent/CA3054603A1/en active Pending
- 2017-03-02 NZ NZ757065A patent/NZ757065A/en unknown
- 2017-03-02 EA EA201991781A patent/EA037945B1/en unknown
- 2017-03-02 WO PCT/FI2017/050137 patent/WO2018158492A1/en active Application Filing
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2019
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| US4038363A (en) * | 1975-10-21 | 1977-07-26 | Quebec Iron & Titanium Corporation-Fer Et Titane Due Quebec, Inc. | Upgrading sorelslag for production of synthetic rutile |
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| CN106232840A (en) * | 2014-03-05 | 2016-12-14 | 福阿德·F·卡迈勒丁 | Senior titania is produced from rudimentary titaniferous ore |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3054603A1 (en) | 2018-09-07 |
| PH12019501948A1 (en) | 2020-06-01 |
| WO2018158492A1 (en) | 2018-09-07 |
| NZ757065A (en) | 2022-12-23 |
| EA037945B1 (en) | 2021-06-10 |
| EA201991781A1 (en) | 2020-01-30 |
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