CN103342387A - Method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing sulfuric acid method - Google Patents

Method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing sulfuric acid method Download PDF

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Publication number
CN103342387A
CN103342387A CN2013102951740A CN201310295174A CN103342387A CN 103342387 A CN103342387 A CN 103342387A CN 2013102951740 A CN2013102951740 A CN 2013102951740A CN 201310295174 A CN201310295174 A CN 201310295174A CN 103342387 A CN103342387 A CN 103342387A
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titanium
acid
slag
tank
ilmenite concentrate
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魏绍东
曾倩
吴蕾
王蕊
吴建波
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GUIZHOU EAST CHINA ENGINEERING Co Ltd
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GUIZHOU EAST CHINA ENGINEERING Co Ltd
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Abstract

The invention discloses a method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing a sulfuric acid method. The method comprises the following steps: adopting the titanium concentrate and the acid-soluble titanium slag as materials in an acidolysis process; mixing titaniferous solution which is respectively generated by the titanium concentrate and the acid-soluble titanium slag according to a certain ratio, wherein the mixing basis is that the iron-titanium ratio in the titaniferous solution is adjusted to the range of process requirements, and the titaniferous solution is directly fed to concentration and hydrolysis procedures after settling and filtering. According to the method, the titanium concentrate and the acid-soluble titanium slag are respectively subjected to an acidolysis reaction with different concentration of sulfuric acid; the reacted titaniferous solution is mixed according to a certain ratio; main indexes of the titaniferous solution are controlled, so that a lot of ferrous sulfate generated in the production process is removed. No ferrous sulfate is generated by the process, so that the procedures of vacuum crystallization and ferrous separation are reduced; the construction investment is also reduced; the pollution on the environment cause by a lot of ferrous sulfate generated in production of titanium white by the sulfuric acid method is solved; meanwhile, the investment is reduced; the method has certain popularization and application prospects.

Description

Adopt ilmenite concentrate and acid-dissolved titanium slag to produce the method for titanium dioxide for the raw material sulphuric acid method
Technical field
The present invention relates to a kind of method that adopts ilmenite concentrate and acid-dissolved titanium slag to produce titanium dioxide for the raw material sulphuric acid method, belong to the Titanium White Production By Sulfuric Acid Process technical field.
Background technology
During sulfate process titanium dioxide was produced, it was 6 tons and 3~4 tons ferrous sulfate (FeSO of spent acid of about 20% that 1 ton of titanium dioxide of every production produces the sulfur acid massfraction approximately 4.7H 2O), the Producing Titanium Dioxide of China is except 1.5 ten thousand tons of/year production equipments of Jinzhou Titanium Industry Co., Ltd. adopt chlorination process production at present, and all the other producers all adopt Production By Sulfuric Acid Process.National Producing Titanium Dioxide amount was about 1,890,000 tons in 2012, and common property is given birth to about 600~7,500,000 tons of ferrous sulfate, except containing 85~88% ferrous sulfate, also contains H 2SO 4: TiO~0.6%, 2: MgSO≤0.2%, 4: H~2.5%, 2O:8~11% etc.
Ferrous sulfate is a kind of use utmost point industrial chemicals widely, and its main application has following several aspect: be used for the oxygenerating iron pigment; As trade effluent, water purification flocculation agent from the beginning; Be used for iron fertilizer processed, agricultural chemicals and improve the soil; Mix with the pyrite roasting or with coal dust mixed decomposition sulfuric acid processed and ferric oxide etc.
But because ferrous sulfate output is huge, the ferrous sulfate of above purposes only can consume sub-fraction, and a large amount of ferrous sulfate becomes one of key factor of restriction sulfuric acid method titanium pigment production owing to being applied.
Sulfate process titanium dioxide production has two kinds of main modes:
A kind of is to be that main production raw material is produced titanium dioxide with 91% sulfuric acid and ilmenite concentrate, and the chemical composition of its ilmenite concentrate is:
The chemical composition of ilmenite concentrate
Chemical Composition TiO 2 FeO Fe 2O 3 MgO SiO 2 Al 2O 3 CaO MnO
Content % 〉47.0 34.27 5.85 6.12 <3.0 1.34 0.75 0.65
Chemical Composition S Cu P V 2O 5 Ni Co Cr As
Content % <0.19 0.0052 <0.0049 0.095 0.0087 0.0013 <0.005 0.0077
Another kind is that 98% sulfuric acid and acid-dissolved titanium slag are the main material production titanium dioxide, and the composition range of its acid-dissolved titanium slag is:
Acid-dissolved titanium slag composition scope
Chemical Composition TiO 2 FeO MgO Al 2O 3 MnO
Amount % ≥78 3.4~6 0.4~8 1.25~3 1~2
Chemical Composition SiO 2 Cr 2O 3 V 2O 5 CaO
Amount % 0.88~4 0.2~1.7 0.15 0.28~2
First kind of production method production cost is low, and investment is high, and acid consumption is big, needs crystallization-concentration section, generates a large amount of ferrous sulfate, the three wastes are many; Second kind of less investment do not need crystallization-concentration section, and the sulfuric acid consumption is few, and three wastes discharge amount is little, but the production cost height, per ton cost is high more than 1000 yuan.
Present titanium dioxide industry competition fierceness, it is all hard to carry on that some factory keeps existing cost, though there is profit in some factory, but adopting titanium slag is that the raw material production rate of profit also can reduce greatly, because the price of titanium slag is too high, enterprise is difficult to accept, and therefore, all adopts first kind of mode to produce in the nearly all sulfuric acid method titanium pigment factory of China.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of both the solution and uses the high shortcoming of titanium slag cost, has avoided again producing the drawback of ferrous sulfate in the production process, and can reduce investment outlay, and has reduced environmental pollution.The method that adopts ilmenite concentrate and acid-dissolved titanium slag to produce titanium dioxide for the raw material sulphuric acid method can overcome the deficiencies in the prior art.
Technical scheme of the present invention: the method that adopts ilmenite concentrate and acid-dissolved titanium slag to produce titanium dioxide for the raw material sulphuric acid method is that to adopt ilmenite concentrate and acid-dissolved titanium slag in the acidolysis process be raw material, the titanium liquid that ilmenite concentrate and acid-dissolved titanium slag generate separately mixes according to a certain percentage, mix according to for the titanous in the titanium liquid and iron titanium ratio content are adjusted in the processing requirement scope, after sedimentation is filtered, directly send into concentrated hydrolyzing process.
The method that above-mentioned employing ilmenite concentrate and acid-dissolved titanium slag are produced titanium dioxide for the raw material sulphuric acid method is: ilmenite concentrate powder and 91% vitriol oil are at the acid hydrolysis tank internal reaction in the acidolysis process; Acid-dissolved titanium slag and 98% vitriol oil are at the acid hydrolysis tank internal reaction.
The concrete steps that aforementioned employing ilmenite concentrate and acid-dissolved titanium slag are produced the method for titanium dioxide for the raw material sulphuric acid method are:
A, with the metering ilmenite concentrate and 91% vitriol oil in the premix groove, be mixed into ore pulp, adding a certain amount of concentration in acid hydrolysis tank is that 8% left and right sides sulfur waste acid is as starting acid, make in the ore pulp of sending in the acid hydrolysis tank 91% Dilution of sulphuric acid to sulfuric acid concentration 86~89%, the Dilution of sulphuric acid heat release raises slurry temperature, feed small amount of steam again and cause acidolysis reaction, main reaction was finished in 10 minutes, stirred with pressurized air simultaneously to help reaction to carry out.Reaction is decomposed the most of metal oxide in the ilmenite concentrate, forms vitriol, and wherein the titanium dioxide in the ilmenite concentrate decomposes back formation titanyl sulfate.Reaction is thermopositive reaction, and the reaction liberated heat raises temperature of charge rapidly and further accelerates the carrying out of acidolysis reaction.After question response is finished material slaking for some time, add a certain amount of 20% dilute sulphuric acid in the acid hydrolysis tank and process water leaches, add iron powder then the high price iron in the solution is reduced into iron at a low price, after having titanous to occur in the solution, adjust titanium concentration at 49~51 ° of B é, blowing temperature control is when (60 ± 1) ℃, i.e. sedimentation workshop section tempering tank is removed in available pumping;
B, with the acid-dissolved titanium slag of metering with after 98% vitriol oil mixes in the premix groove, ore pulp is at the acid hydrolysis tank internal reaction, feeding steam initiation acidolysis reaction; After finishing, reaction adds 20% rare spent acid in the acid hydrolysis tank again and process water leaches, to improve acidolysis rate; In acid hydrolysis tank, add oxygenant to reduce Ti in the titanium liquid 3+Concentration; When titanous content in the solution removes sedimentation workshop section tempering tank with pumping behind 1.5~3.5g/l;
After c, the titanium liquid that hydrolysis procedure in a, the b step is next mix in tempering tank by a certain percentage, mixing requirement is that mixed with titanium liquid iron titanium ratio≤0.33, titanous content are at 1.5~3 g/l, deliver to subsider after mixing, add a certain amount of flocculation agent simultaneously, solid impurity after flocculation is deposited to the bottom of groove under action of gravity, clarify qualified titanium liquid and be sent to the controlled filter operation from the top extraction.
D, the titanium liquid that is come by the c step are delivered to titanium liquid storage tank and wood charcoal powder tempering tank, through with inflow sheet frame charging tank after wood charcoal powder mixes, send into titanium liquid sheet frame by the sheet frame charging pump and carry out heat filtering; Titanium liquid after the filtration is further removed behind the impurity in the titanium liquid to clear titanium liquid storage tank through box flame filter press again, sends into concentrated hydrolysis device by clear titanium liquid pump.
The method that aforementioned employing ilmenite concentrate and acid-dissolved titanium slag are produced titanium dioxide for the raw material sulphuric acid method is, the mud of subsider bottom is sent into the mud plate-and-frame filter press in the c step, through squeezing and washing, filtrate turns back to subsider, and body refuse adds to be sent to the sewage works neutralization tank after water is pulled an oar again and carry out neutralizing treatment.
Compared with the prior art, the present invention adopts ilmenite concentrate and acid-dissolved titanium slag to carry out acidolysis reaction with the sulfuric acid of different concns respectively, reacted titanium liquid mixes by certain ratio row, control its leading indicator, the a large amount of ferrous sulfate that produce in the production process have been eliminated, and solved and used the high shortcoming of titanium slag cost, because this technology does not produce ferrous sulfate, vacuum crystallization and ferrous separation circuit have been reduced, reduce construction investment, solved a large amount of ferrous sulfate of producing in the sulfate process titanium dioxide production to the pollution of environment.
Simultaneously, because the concentration of titanium liquid is higher after the acidolysis, concentrating needs evaporated water less, and energy consumption of unit product descends, and has reduced investment, has certain popularizing application prospect.
Description of drawings:
Fig. 1 is schema of the present invention.
Embodiment:
The concrete steps that adopt ilmenite concentrate and acid-dissolved titanium slag to produce the method for titanium dioxide for the raw material sulphuric acid method are
(1), the acidolysis of ilmenite concentrate
Ilmenite concentrate and 91% vitriol oil of metering are mixed into ore pulp in the premix groove, adding a certain amount of concentration in acid hydrolysis tank is that 8% left and right sides sulfur waste acid is as starting acid, make in the ore pulp of sending in the acid hydrolysis tank 91% Dilution of sulphuric acid to sulfuric acid concentration 86~89%, by the diluting concentrated sulfuric acid heat release slurry temperature is raise, feed small amount of steam again and cause acidolysis reaction.Reaction is decomposed the most of metal oxide in the ilmenite concentrate, forms vitriol, and wherein the titanium dioxide in the ilmenite concentrate decomposes back formation titanyl sulfate.Reaction is thermopositive reaction, and the reaction liberated heat raises temperature of charge rapidly and further accelerates the carrying out of acidolysis reaction.After reaction is finished, add a certain amount of 20% dilute sulphuric acid in the acid hydrolysis tank and process water leaches, to improve the acidolysis rate of breeze.Add iron powder again the high price iron in the solution is reduced at a low price iron, after the content of titanous in the solution is qualified, remove sedimentation workshop section tempering tank with pumping.
The post quality index:
Total titanium 〉=110g/l
F value: 1.6~2.2
Ti 3+: 0.1~5 g/l
Stationary value: 〉=350ml
Acidolysis rate: 〉=93%
Fe/TiO 2 :0.22~0.37
(2), the acidolysis of acid-dissolved titanium slag
Acid-dissolved titanium slag and 98% vitriol oil through metering are mixed into ore pulp in acid hydrolysis tank, send into acid hydrolysis tank, feed steam and cause acidolysis reaction.Reaction is decomposed the most of metal oxide in the acid-dissolved titanium slag, forms vitriol, and wherein the titanium dioxide in the titanium slag decomposes back formation titanyl sulfate.Reaction is thermopositive reaction, and the reaction liberated heat raises temperature of charge rapidly and further accelerates the carrying out of acidolysis reaction.After finishing, reaction adds a certain amount of 20% dilute sulphuric acid in the acid hydrolysis tank again and process water leaches, to improve acidolysis rate.Because a part of titanium is with Ti in the acid-dissolved titanium slag 2O 3Form have so Ti in the titanium liquid after the main reaction 3+Concentration is higher, for improving yield, must add oxygenant to reduce Ti in the titanium liquid in acid hydrolysis tank 3+Concentration.After the content of titanous in the solution is qualified, remove sedimentation workshop section tempering tank with pumping.
The post quality index:
Total titanium 〉=180 g/l
F value 1.75
Ti 3+ 1.5~3.5g/l
Stability 〉=400 ml
Fe/TiO 2 0.26~0.32
(3), sedimentation, filtration
The purpose of sedimentation, filtration is to make that by adding flocculation agent solid impurity and the colloid in the titanium liquid settles down the titanium liquid that obtains clarifying after the acidolysis; By to the ilmenite concentrate being the titanium sulfate liquid total analysis index that raw material produces, the titanium sulfate liquid that produces with acid-dissolved titanium slag carries out the batch mixing operation according to certain ratio, and with the slip titanous, iron titanium ratio is adjusted in the suitable scope.
Deliver to subsider after the titanium liquid that the titanium liquid that the ilmenite concentrate powder acidolysis that hydrolysis procedure comes produces and acid-dissolved titanium slag acidolysis produce mixing according to a certain percentage in tempering tank (control iron titanium ratio≤0.33) evenly, add a certain amount of flocculation agent simultaneously, solid impurity after flocculation is deposited to the bottom of groove under action of gravity, clarify qualified titanium liquid and be sent to the controlled filter operation from the top extraction.
The mud of subsider bottom is sent into plate-and-frame filter press, and through squeezing and washing, filtrate turns back to subsider, sends to the sewage works neutralization tank after body refuse is pulled an oar again and carries out neutralizing treatment.
The post quality index
Purify the clarity secondary
TI 3+ 1.5~3 g/l
Fe/TiO 2 0.25~0.33
(4), titanium hydraulic control filter made
Remove solid particulate and colloidal impurity in the diluted Ti solution by press filtration, make titanium liquid reach the first class purification standard, use for concentrated post.
Deliver to titanium liquid storage tank and wood charcoal powder tempering tank by the titanium liquid that acidolysis-sedimentation operation is come, through with inflow sheet frame charging tank after wood charcoal powder mixes, send into titanium liquid sheet frame by the sheet frame charging pump and carry out heat filtering; Titanium liquid after the filtration is further removed behind the impurity in the titanium liquid to clear titanium liquid storage tank through box flame filter press again, sends into concentrated hydrolysis device by clear titanium liquid pump.
Body refuse pumping decontaminated water treatment station neutralization tank after adding the water making beating carries out neutralizing treatment.
Press filtration pumping pressure: 0.2~0.4Mpa
Titanium concentration: 〉=140g/l
Wood charcoal powder dosage: 50~100kg/ platform
Clarity: one-level
Stability 〉=400ml.

Claims (5)

1. method that adopts ilmenite concentrate and acid-dissolved titanium slag to produce titanium dioxide for the raw material sulphuric acid method, it is characterized in that: this method is that to adopt ilmenite concentrate and acid-dissolved titanium slag in the acidolysis process be raw material, the titanium liquid that ilmenite concentrate and acid-dissolved titanium slag generate separately mixes according to a certain percentage, mix according to for the titanous in the titanium liquid and iron titanium ratio content are adjusted in the scope of processing requirement, after sedimentation is filtered, send into concentrated hydrolyzing process.
2. employing ilmenite concentrate according to claim 1 and acid-dissolved titanium slag are the method for raw material sulphuric acid method production titanium dioxide, and it is characterized in that: ilmenite concentrate and 91% vitriol oil are at the acid hydrolysis tank internal reaction in the acidolysis process; Acid-dissolved titanium slag and 98% vitriol oil are at the acid hydrolysis tank internal reaction.
3. employing ilmenite concentrate according to claim 1 and acid-dissolved titanium slag are the method for raw material sulphuric acid method production titanium dioxide, and it is characterized in that: the titanium liquid behind the acidolysis reaction is regulated by a certain percentage.
4. employing ilmenite concentrate according to claim 2 and acid-dissolved titanium slag are the method for raw material sulphuric acid method production titanium dioxide, and it is characterized in that: the concrete steps of this method are:
A, with the metering ilmenite concentrate and 91% vitriol oil in the premix groove, be mixed into ore pulp, adding a certain amount of concentration in acid hydrolysis tank is that 8% left and right sides sulfur waste acid is as starting acid, make in the ore pulp of sending in the acid hydrolysis tank 91% Dilution of sulphuric acid to sulfuric acid concentration 86~89%, after reaction is finished, add a certain amount of 20% dilute sulphuric acid in the acid hydrolysis tank and process water leaches, to improve the acidolysis rate of breeze; Add iron powder again the high price iron in the solution is reduced at a low price iron, after having titanous to occur in the solution, adjust titanium concentration at 49~51 ° of B é, the control of blowing temperature is when (60 ± 1) ℃, i.e. tempering tank is removed in available pumping;
B, with the acid-dissolved titanium slag of metering with after 98% vitriol oil mixes in the premix groove, send in the acid hydrolysis tank feeding steam initiation acidolysis reaction; After finishing, reaction adds 20% dilute sulphuric acid in the acid hydrolysis tank again and process water leaches, to improve acidolysis rate; In acid hydrolysis tank, add oxygenant to reduce Ti in the titanium liquid 3+Concentration; When titanous content in the solution removes tempering tank with pumping behind 1.5~3.5g/l;
After c, the titanium liquid that hydrolysis procedure in a, the b step is next mix in tempering tank by a certain percentage, mixing requirement is that mixed with titanium liquid iron titanium ratio≤0.33, titanous content are at 1.5~3 g/l, deliver to subsider after mixing, add a certain amount of flocculation agent simultaneously, solid impurity after flocculation is deposited to the bottom of groove under action of gravity, clarify qualified titanium liquid and be sent to the controlled filter operation from the top extraction;
Deliver to titanium liquid storage tank and wood charcoal powder tempering tank by the titanium liquid that the c step is come, through with inflow sheet frame charging tank after wood charcoal powder mixes, send into titanium liquid sheet frame by the sheet frame charging pump and carry out heat filtering; Titanium liquid after the filtration is delivered to titanium liquid storage tank clearly after further removing impurity in the titanium liquid through box flame filter press again, sends into concentrated hydrolysis device by clear titanium liquid pump.
5. employing ilmenite concentrate according to claim 4 and acid-dissolved titanium slag are produced the method for titanium dioxide for the raw material sulphuric acid method, it is characterized in that: the mud of subsider bottom is sent into the mud plate-and-frame filter press in the c step, through squeezing and washing, filtrate turns back to subsider, and body refuse adds to be sent to the sewage works neutralization tank after water is pulled an oar again and carry out neutralizing treatment.
CN2013102951740A 2013-07-15 2013-07-15 Method for producing titanium dioxide by using titanium concentrate and acid-soluble titanium slag as materials employing sulfuric acid method Pending CN103342387A (en)

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CN103936064A (en) * 2014-04-02 2014-07-23 济南裕兴化工有限责任公司 Method for producing titanium dioxide by using titanium ore
CN104045109A (en) * 2013-12-03 2014-09-17 攀钢集团攀枝花钢铁研究院有限公司 Titanyl sulfate solution production method and its application
CN104528818A (en) * 2015-01-07 2015-04-22 攀钢集团攀枝花钢铁研究院有限公司 Slag and ore blending ratio characterization method
CN104843785A (en) * 2015-05-21 2015-08-19 贵州东华工程股份有限公司 Titanium dioxide continuous acidolysis method as well as mineral acid pre-mixing tank and reactor feeding tank applied to method
CN104843784A (en) * 2015-05-21 2015-08-19 贵州东华工程股份有限公司 Method and equipment for carrying out acidolysis in titanium white production by sulfuric acid process
CN104928485A (en) * 2015-06-17 2015-09-23 昆明理工大学 Titaniferous slag recrystallization-reselection titanium recovery method
CN105271399A (en) * 2015-12-01 2016-01-27 山东东佳集团股份有限公司 Method for acidolysis and reduction of ferric iron by titanium dioxide to improve quality of titaniferous solution through sulfuric acid method
CN106186056A (en) * 2016-06-30 2016-12-07 广西金茂钛业有限公司 A kind of produce the method for the continuous acidolysis of ilmenite in titanium dioxide technique
CN106745232A (en) * 2017-02-24 2017-05-31 四川龙蟒钛业股份有限公司 A kind of recoverying and utilizing method for hydrolyzing dirt
CN108002440A (en) * 2017-11-30 2018-05-08 广西雅照钛白有限公司 A kind of novel production process of titanium dioxide powder
CN108217723A (en) * 2018-03-08 2018-06-29 四川龙蟒钛业股份有限公司 A kind of method for effectively improving acidolysis production capacity
CN108675344A (en) * 2018-06-08 2018-10-19 龙蟒佰利联集团股份有限公司 A kind of sulfate process titanium dioxide acidolysis production technology
CN110568123A (en) * 2019-09-04 2019-12-13 广西蓝星大华化工有限责任公司 Method for analyzing quality of titanium liquid after acidolysis leaching
CN111646502A (en) * 2020-06-10 2020-09-11 攀钢集团研究院有限公司 Slag ore mixing continuous acidolysis leaching method and equipment
US11319613B2 (en) 2020-08-18 2022-05-03 Enviro Metals, LLC Metal refinement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102336433A (en) * 2011-08-04 2012-02-01 四川龙蟒钛业股份有限公司 Pretreatment method in the process of preparing titanium dioxide by reusing acidolysis residues

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102336433A (en) * 2011-08-04 2012-02-01 四川龙蟒钛业股份有限公司 Pretreatment method in the process of preparing titanium dioxide by reusing acidolysis residues

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CN104045109B (en) * 2013-12-03 2015-11-18 攀钢集团攀枝花钢铁研究院有限公司 A kind of method and application thereof of producing acidolysis titanium liquid
CN103936064B (en) * 2014-04-02 2016-02-03 济南裕兴化工有限责任公司 A kind of method adopting titanium ore to produce titanium dioxide
CN103936064A (en) * 2014-04-02 2014-07-23 济南裕兴化工有限责任公司 Method for producing titanium dioxide by using titanium ore
CN104528818A (en) * 2015-01-07 2015-04-22 攀钢集团攀枝花钢铁研究院有限公司 Slag and ore blending ratio characterization method
CN104843785A (en) * 2015-05-21 2015-08-19 贵州东华工程股份有限公司 Titanium dioxide continuous acidolysis method as well as mineral acid pre-mixing tank and reactor feeding tank applied to method
CN104843784A (en) * 2015-05-21 2015-08-19 贵州东华工程股份有限公司 Method and equipment for carrying out acidolysis in titanium white production by sulfuric acid process
CN104928485B (en) * 2015-06-17 2017-01-04 昆明理工大学 A kind of method of Ti-containing slag recrystallization-gravity treatment recovery Pd
CN104928485A (en) * 2015-06-17 2015-09-23 昆明理工大学 Titaniferous slag recrystallization-reselection titanium recovery method
CN105271399A (en) * 2015-12-01 2016-01-27 山东东佳集团股份有限公司 Method for acidolysis and reduction of ferric iron by titanium dioxide to improve quality of titaniferous solution through sulfuric acid method
CN106186056A (en) * 2016-06-30 2016-12-07 广西金茂钛业有限公司 A kind of produce the method for the continuous acidolysis of ilmenite in titanium dioxide technique
CN106745232A (en) * 2017-02-24 2017-05-31 四川龙蟒钛业股份有限公司 A kind of recoverying and utilizing method for hydrolyzing dirt
CN106745232B (en) * 2017-02-24 2018-09-11 四川龙蟒钛业股份有限公司 A kind of recoverying and utilizing method of hydrolysis dirt
CN108002440A (en) * 2017-11-30 2018-05-08 广西雅照钛白有限公司 A kind of novel production process of titanium dioxide powder
CN108217723A (en) * 2018-03-08 2018-06-29 四川龙蟒钛业股份有限公司 A kind of method for effectively improving acidolysis production capacity
CN108217723B (en) * 2018-03-08 2020-03-20 四川龙蟒钛业股份有限公司 Method for effectively improving acidolysis productivity
CN108675344A (en) * 2018-06-08 2018-10-19 龙蟒佰利联集团股份有限公司 A kind of sulfate process titanium dioxide acidolysis production technology
CN110568123A (en) * 2019-09-04 2019-12-13 广西蓝星大华化工有限责任公司 Method for analyzing quality of titanium liquid after acidolysis leaching
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Application publication date: 20131009