CN107758738A - A kind of titanium dioxide chloridising production technology - Google Patents
A kind of titanium dioxide chloridising production technology Download PDFInfo
- Publication number
- CN107758738A CN107758738A CN201711222023.7A CN201711222023A CN107758738A CN 107758738 A CN107758738 A CN 107758738A CN 201711222023 A CN201711222023 A CN 201711222023A CN 107758738 A CN107758738 A CN 107758738A
- Authority
- CN
- China
- Prior art keywords
- powder
- titanium dioxide
- air
- slurry
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention provides a kind of titanium dioxide chloridising production technology, belongs to titanium dioxide preparation field, including chlorination, oxidation and treatment and finishing section.The present invention carries out production titanium dioxide by chloridising so that the technique of production is simpler, and waste gas waste material is less, reduces the production cost of titanium dioxide, improves the economic benefit of titanium dioxide industry.
Description
Technical field
The present invention relates to field of titanium dioxide production, especially, is related to a kind of titanium dioxide chloridising production technology.
Background technology
At present,
The industrial process of titanium dioxide mainly has sulfuric acid process and chloridising.Sulfuric acid process be with sulfuric acid decomposition titanium ore into
TiOSO4, after purified, concentration, titanium hydrolysis into Ti O2H2O, then after scrubbed, filtering, calcining product, then carry out table
Face is handled, then rutile product, be that raw material sources are wide, grade requirement is low, production technology is easily mastered the characteristics of the technique, but
It is that production procedure is long, operation requirement is fine, " three wastes " discharge capacity is big.Chloridising is with natural rutile, synthetic rutile or high titanium
Slag is raw material, the finished product after chlorination, refined, oxidation, surface treatment, is that production procedure is short, serialization the characteristics of the technique
Operation, single series unit scale is big, " three wastes " discharge is few, but production technology difficulty is big.
The content of the invention
Present invention aims at a kind of titanium dioxide chloridising production technology is provided, to solve existing acid hydrolyzation production titanium dioxide
The high technical problem of production cost.
To achieve the above object, the invention provides a kind of titanium dioxide chloridising production technology, comprise the following steps；
Step 1：The rich-titanium material of rutile ore or high titanium slag adds boiling with petroleum coke after grinding above boiling bed
Stove；
Step 2：Added from the circulating chlorine gas that oxidation operation returns from furnace bottom, reacting gas first will be not anti-through cyclone separator
The solid dust and nonvolatile chloride answered are separated from reacting gas, then, cool down step by step, are condensed, first divide
The chloride of ferrous iron is separated out, then separates the chloride ferric trichloride of mid-boiling point；
Step 3：Lower boiling titanium tetrachloride is collected with the method condensation such as cold titanium tetrachloride spray, it is filtered to remove mud, obtain
To crude titanic chloride, crude titanic chloride passes through and removes alum, then through silicon tetrachloride impurity is distilled off, obtains refining titanic chloride；
Step 4：Nucleator, crystal inversion accelerating agent are anti-necessary to the preheated oxygen of refining titanic chloride and reaction
Thing is answered to add oxidation reactor；
Step 5：The air-flow come out from reactor is quenched to less than 700 DEG C, then through pipe in line with the circulating chlorine gas of low temperature
200 DEG C are cooled to, is step by step separated from chlorine titanium dioxide with cyclone separator and cloth bag collector, titanium dioxide enters
Row dechlorination is handled；
Step 6：The titanium dioxide powder of dechlorination processing enters hollander tub, is separately added into and beats after dispersant, desalted water metering
Stock tank, obtain being beaten qualified slurries；
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, after mill disposed slurry is sent into mill
Storage tank, classifier is pumped to through slurry classification, coarse fodder returns to sand mill, and fines flow to surface treatment tank certainly；
Step 8：Addition surface conditioning agent is carried out toward surface treatment tank, reaction paste is obtained after the completion of reaction；
Step 9：Slurry with suction piece groove is pumped into, leaf filter vacuum suction filter in suction piece groove, after completion upper piece, bridge crane is hung
Leaf filter is played, is put into the rinsing bowl full of desalted water and carries out slurry washing, after washing is qualified, bridge crane slings leaf filter in discharging
Slurry is unloaded in groove；
Step 10：After the slurry that blowpit unloads enters homogenizer mashing uniformly, spray dryer is pumped into through barrier film,
In drier after centrifugal atomizing, with hot-blast stove be sent into heated-air drying slurry, go out drier tail gas separated in bag hose under
Powder, hot blast are discharged into air, dried Ti O2 powders through exhaust blower；
Step 11：Set conveying worm to convey powder through feed bin before flow delivery systems feeding vapour powder, under feed bin to enter
Airslide disintegrating mill, in airslide disintegrating mill porch, grinding aid is added into powder with mobile pump, in being used in airslide disintegrating mill
Vapours is pressed through as working medium, powder is crushed to about 0.3 μm of average grain diameter, goes out airslide disintegrating mill logistics and enter turbo-steam separation powder
Material, goes out turbo-steam tail gas and flows into the Ti O2 powders that temperature bag filter isolates entrainment again, goes out high temperature bag hose air-flow through water spray
After Quench, into washer, the condensed water after washing goes type washing trough to be used to wash, and goes out the incoagulable gas of washer through vapour-liquid
Separator, air is discharged into by exhaust blower, the powder collected by turbo-steam blasts air fluidization by air blower, and powder is empty
Air cooling, logistics enter cooling cyclonic separation and go out powder, go out to cool down cyclonic air flow and enter bag hose to separate entrainment powder again, output filter
Device air-flow is discharged into air by exhaust blower；Powder is collected to obtain by cooling whirlwind, bag hose；
Step 12：Into conveying worm, finished product bin is sent into, packing machine is packed, and completes production.
Oxidation reaction initiation temperature is more than 800 DEG C in the step 4, and main reaction is 1300~1800 DEG C and reacted.
The titanium dioxide granule for the air-flow entrainment reaction generation that reactor comes out in the step 5.
Packing machine is 25kg/ bag package machines or supplies 1000kg/ bag package machines in the step 12.
The invention has the advantages that：
The present invention carries out production titanium dioxide by chloridising so that the technique of production is simpler, and waste gas waste material is less, drop
The production cost of low titanium white powder, improve the economic benefit of titanium dioxide industry.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Embodiment
Embodiments of the invention are described in detail below, but the present invention can be limited and covered according to claim
Multitude of different ways implement.
A kind of titanium dioxide chloridising production technology, comprises the following steps；
Comprise the following steps；
Step 1：The rich-titanium material of rutile ore or high titanium slag adds boiling with petroleum coke after grinding above boiling bed
Stove.
Step 2：Added from the circulating chlorine gas that oxidation operation returns from furnace bottom, reacting gas first will be not anti-through cyclone separator
The solid dust and nonvolatile chloride answered are separated from reacting gas, then, cool down step by step, are condensed, first divide
The chloride of ferrous iron is separated out, then separates the chloride ferric trichloride of mid-boiling point.
Step 3：Lower boiling titanium tetrachloride is collected with the method condensation such as cold titanium tetrachloride spray, it is filtered to remove mud, obtain
To crude titanic chloride, crude titanic chloride passes through and removes alum, then through silicon tetrachloride impurity is distilled off, obtains refining titanic chloride.
Step 4：Nucleator, crystal inversion accelerating agent are anti-necessary to the preheated oxygen of refining titanic chloride and reaction
Thing is answered to add oxidation reactor.Oxidation reaction initiation temperature is more than 800 DEG C, and main reaction is 1300~1800 DEG C and reacted.
Step 5：The air-flow come out from reactor is quenched to less than 700 DEG C, then through pipe in line with the circulating chlorine gas of low temperature
200 DEG C are cooled to, is step by step separated from chlorine titanium dioxide with cyclone separator and cloth bag collector, titanium dioxide enters
Row dechlorination is handled.The titanium dioxide granule for the air-flow entrainment reaction generation that reactor comes out.
Step 6：The titanium dioxide powder of dechlorination processing enters hollander tub, is separately added into and beats after dispersant, desalted water metering
Stock tank, obtain being beaten qualified slurries.
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, after mill disposed slurry is sent into mill
Storage tank, classifier is pumped to through slurry classification, coarse fodder returns to sand mill, and fines flow to surface treatment tank certainly.
Step 8：Addition surface conditioning agent is carried out toward surface treatment tank, reaction paste is obtained after the completion of reaction.
Step 9：Slurry with suction piece groove is pumped into, leaf filter vacuum suction filter in suction piece groove, after completion upper piece, bridge crane is hung
Leaf filter is played, is put into the rinsing bowl full of desalted water and carries out slurry washing, after washing is qualified, bridge crane slings leaf filter in discharging
Slurry is unloaded in groove.
Step 10：After the slurry that blowpit unloads enters homogenizer mashing uniformly, spray dryer is pumped into through barrier film,
In drier after centrifugal atomizing, with hot-blast stove be sent into heated-air drying slurry, go out drier tail gas separated in bag hose under
Powder, hot blast are discharged into air, dried Ti O2 powders through exhaust blower.
Step 11：Set conveying worm to convey powder through feed bin before flow delivery systems feeding vapour powder, under feed bin to enter
Airslide disintegrating mill, in airslide disintegrating mill porch, grinding aid is added into powder with mobile pump, in being used in airslide disintegrating mill
Vapours is pressed through as working medium, powder is crushed to about 0.3 μm of average grain diameter, goes out airslide disintegrating mill logistics and enter turbo-steam separation powder
Material, goes out turbo-steam tail gas and flows into the Ti O2 powders that temperature bag filter isolates entrainment again, goes out high temperature bag hose air-flow through water spray
After Quench, into washer, the condensed water after washing goes type washing trough to be used to wash, and goes out the incoagulable gas of washer through vapour-liquid
Separator, air is discharged into by exhaust blower, the powder collected by turbo-steam blasts air fluidization by air blower, and powder is empty
Air cooling, logistics enter cooling cyclonic separation and go out powder, go out to cool down cyclonic air flow and enter bag hose to separate entrainment powder again, output filter
Device air-flow is discharged into air by exhaust blower；Powder is collected to obtain by cooling whirlwind, bag hose.
Step 12：Into conveying worm, finished product bin is sent into, packing machine is packed, and completes production.Packing machine is
25kg/ bag package machines supply 1000kg/ bag package machines.
Claims (4)
1. a kind of titanium dioxide chloridising production technology, it is characterised in that comprise the following steps；
Step 1：The rich-titanium material of rutile ore or high titanium slag adds fluidized bed furnace after grinding, with petroleum coke above boiling bed；
Step 2：Added from the circulating chlorine gas that oxidation operation returns from furnace bottom, reacting gas first will be unreacted through cyclone separator
Solid dust and nonvolatile chloride are separated from reacting gas, then, cool down step by step, are condensed, first isolate
Ferrous chloride, then separate the chloride ferric trichloride of mid-boiling point；
Step 3：Lower boiling titanium tetrachloride is collected with the spray method condensation of cold titanium tetrachloride, it is filtered to remove mud, obtain thick four
Titanium chloride, crude titanic chloride passes through and removes alum, then through silicon tetrachloride impurity is distilled off, obtains refining titanic chloride；
Step 4：Nucleator, crystal inversion accelerating agent reactant necessary to the preheated oxygen of refining titanic chloride and reaction
Add oxidation reactor；
Step 5：The air-flow come out from reactor is quenched to less than 700 DEG C with the circulating chlorine gas of low temperature, then is cooled down through pipe in line
To 200 DEG C, titanium dioxide is separated from chlorine with cyclone separator and cloth bag collector step by step, titanium dioxide is taken off
Chlorine processing；
Step 6：The titanium dioxide powder of dechlorination processing enters hollander tub, and hollander tub is separately added into after dispersant, desalted water metering,
Obtain being beaten qualified slurries；
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, mill disposed slurry is sent into storage tank after mill,
Classifier is pumped to through slurry classification, coarse fodder returns to sand mill, and fines flow to surface treatment tank certainly；
Step 8：Addition surface conditioning agent is carried out toward surface treatment tank, reaction paste is obtained after the completion of reaction；
Step 9：Slurry with suction piece groove is pumped into, leaf filter vacuum suction filter in suction piece groove, after completion upper piece, bridge crane slings leaf
Filter, it is put into the rinsing bowl full of desalted water and carries out slurry washing, after washing is qualified, bridge crane slings leaf filter in blowpit
Unload slurry；
Step 10：After the slurry that blowpit unloads enters homogenizer mashing uniformly, spray dryer is pumped into through barrier film, in drying
In device after centrifugal atomizing, with hot-blast stove be sent into heated-air drying slurry, go out drier tail gas separated in bag hose under powder,
Hot blast is discharged into air, dried TiO2 powders through exhaust blower；
Step 11：Set conveying worm to convey powder through feed bin before flow delivery systems feeding vapour powder, under feed bin and enter air-flow
Pulverizer, in airslide disintegrating mill porch, grinding aid is added into powder with mobile pump, is pressed through in airslide disintegrating mill in
Vapours crushes powder to about 0.3 μm of average grain diameter, goes out airslide disintegrating mill logistics and enter turbo-steam separation powder as working medium,
Go out turbo-steam tail gas and flow into the TiO2 powders that temperature bag filter isolates entrainment again, go out high temperature bag hose air-flow through Quench of spraying water
Afterwards, into washer, the condensed water after washing goes type washing trough to be used to wash, and goes out the incoagulable gas of washer through vapor-liquid separation
Device, air is discharged into by exhaust blower, the powder collected by turbo-steam blasts air fluidization by air blower, and powder is cold by air
But, logistics enters cooling cyclonic separation and goes out powder, goes out to cool down cyclonic air flow and enters bag hose to separate entrainment powder again, go out bag hose gas
Stream is discharged into air by exhaust blower；Powder is collected to obtain by cooling whirlwind, bag hose；
Step 12：Into conveying worm, finished product bin is sent into, packing machine is packed, and completes production.
2. a kind of titanium dioxide chloridising production technology according to claim 1, it is characterised in that aoxidized in the step 4
Reaction initiation temperature is more than 800 DEG C, and main reaction is 1300~1800 DEG C and reacted.
3. a kind of titanium dioxide chloridising production technology according to claim 1, it is characterised in that reacted in the step 5
The titanium dioxide granule for the air-flow entrainment reaction generation that device comes out.
4. a kind of titanium dioxide chloridising production technology according to claim 1, it is characterised in that packed in the step 12
Machine is 25kg/ bag package machines or supplies 1000kg/ bag package machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222023.7A CN107758738A (en) | 2017-11-29 | 2017-11-29 | A kind of titanium dioxide chloridising production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711222023.7A CN107758738A (en) | 2017-11-29 | 2017-11-29 | A kind of titanium dioxide chloridising production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107758738A true CN107758738A (en) | 2018-03-06 |
Family
ID=61276976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711222023.7A Pending CN107758738A (en) | 2017-11-29 | 2017-11-29 | A kind of titanium dioxide chloridising production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107758738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745699A (en) * | 2020-12-30 | 2021-05-04 | 福州钛发科技有限公司 | Preparation method of titanium dioxide for extinction of spandex fibers |
| CN115896542A (en) * | 2022-12-07 | 2023-04-04 | 云南国钛金属股份有限公司 | Titanium white sponge titanium co-production coupling production method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746815A (en) * | 2008-12-05 | 2010-06-23 | 贵阳铝镁设计研究院 | Boiling chlorination furnace for preparing titanium tetrachloride by using natural rutile |
| CN103663549A (en) * | 2013-12-09 | 2014-03-26 | 云南新立有色金属有限公司 | Preparation method for titanium dioxide |
| CN103693688A (en) * | 2013-12-09 | 2014-04-02 | 云南新立有色金属有限公司 | Titanium dioxide slurry pretreatment method |
| CN203668019U (en) * | 2013-12-09 | 2014-06-25 | 云南新立有色金属有限公司 | System for preparing titanium dioxide |
-
2017
- 2017-11-29 CN CN201711222023.7A patent/CN107758738A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746815A (en) * | 2008-12-05 | 2010-06-23 | 贵阳铝镁设计研究院 | Boiling chlorination furnace for preparing titanium tetrachloride by using natural rutile |
| CN103663549A (en) * | 2013-12-09 | 2014-03-26 | 云南新立有色金属有限公司 | Preparation method for titanium dioxide |
| CN103693688A (en) * | 2013-12-09 | 2014-04-02 | 云南新立有色金属有限公司 | Titanium dioxide slurry pretreatment method |
| CN203668019U (en) * | 2013-12-09 | 2014-06-25 | 云南新立有色金属有限公司 | System for preparing titanium dioxide |
Non-Patent Citations (4)
| Title |
|---|
| 《有色金属提取冶金手册》编辑委员会 编: "《有色金属提取冶金手册 稀有高熔点金属上》", 31 December 1999, 冶金工业出版社 * |
| 唐振宁等: "《钛白粉的生产与环境治理》", 31 May 2000, 化学工业出版社 * |
| 莫畏: "《钛冶炼》", 31 July 2011, 冶金工业出版社 * |
| 邓科等: "氯化法钛白粉的生产工艺与技术经济分析", 《中国氯碱》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112745699A (en) * | 2020-12-30 | 2021-05-04 | 福州钛发科技有限公司 | Preparation method of titanium dioxide for extinction of spandex fibers |
| CN115896542A (en) * | 2022-12-07 | 2023-04-04 | 云南国钛金属股份有限公司 | Titanium white sponge titanium co-production coupling production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107954472A (en) | A kind of titanium white production technique | |
| US4784841A (en) | Process for the production of coarse, scrubbing aggregates of titanium dioxide particles by oxidation of titanium tetrachloride in the vapor phase and use of said aggregates for the prevention of deposit formation in the same production process | |
| CN105256130B (en) | A kind of method of the Titanium Dioxide Produced by Chloride Procedure chlorination furnace blowout material reclaimed containing fine rutile | |
| CN107758738A (en) | A kind of titanium dioxide chloridising production technology | |
| CN1195701C (en) | Treatment and production technique for calcining kaolin | |
| CN103663549A (en) | Preparation method for titanium dioxide | |
| CN106315585B (en) | The purifying technique of waste liquid caused by carbonization abrading with boron sapphire | |
| CN106587143A (en) | Improvement on chlorination dedusting technology used for chloride process titanium dioxide apparatus | |
| CN105883917B (en) | One kind prepares TiO using Titanium Dioxide Produced by Chloride Procedure waste gas2And the method for HCl solution | |
| CN103693688A (en) | Titanium dioxide slurry pretreatment method | |
| CN105884082A (en) | Method for treating acid wastewater in titanium dioxide production process through chlorination method | |
| CN103880069A (en) | Titanium dioxide coating method | |
| CN101432454B (en) | Processing of waste or cyclone solids from the chlorination of titanium bearing ores | |
| CN107777725A (en) | A kind of new titanium white production technique | |
| CN103663550B (en) | The method preparing titanium dioxide | |
| CN106892451A (en) | For processing unit and its continuous construction technology except the refined tailings of vanadium mud | |
| CN108557878A (en) | A kind of titanium dioxide production method | |
| JP5897488B2 (en) | Method for producing titanium tetrachloride | |
| CN203833638U (en) | System for preparing titanium dioxide gas powder | |
| CN206464067U (en) | A kind of fine powder production device | |
| CN103112886B (en) | Fluidizing chlorination furnace and fluidizing chlorination device | |
| US5300268A (en) | Process for the manufacture of aqueous solutions of ferric chloride | |
| CN103693686B (en) | Prepare the method for titanium dioxide | |
| GB860301A (en) | Improvements in or relating to exothermic reactions | |
| CN201545708U (en) | Apparatus for processing and reusing copperas heptahydrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |