CN107954472A - A kind of titanium white production technique - Google Patents
A kind of titanium white production technique Download PDFInfo
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- CN107954472A CN107954472A CN201711221926.3A CN201711221926A CN107954472A CN 107954472 A CN107954472 A CN 107954472A CN 201711221926 A CN201711221926 A CN 201711221926A CN 107954472 A CN107954472 A CN 107954472A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
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Abstract
The present invention provides a kind of titanium white production technique, belongs to field of titanium dioxide production, 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 exhaust 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 white production technique.
Background technology
At present,
The industrial process of titanium dioxide mainly has sulfuric acid process and chloridising.Sulfuric acid process is to use sulfuric acid decomposition titanium ore into Ti
OSO4, after purified, concentration, titanium hydrolysis into Ti O2H2O, then after washed, filtering, calcining product, then carry out surface
Processing, then rutile product, the characteristics of technique are that raw material sources are wide, grade requirement is low, production technology is easily mastered, still
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
For raw material, the characteristics of finished product after chlorination, refined, oxidation, surface treatment, the technique is that production procedure is short, serialization behaviour
Work, single series unit scale are big, " three wastes " discharge is few, but production technology difficulty is big.
The content of the invention
Present invention aims at providing a kind of titanium white production technique, with solve existing acid hydrolyzation produce titanium white production into
This high technical problem.
To achieve the above object, the present invention provides a kind of titanium white production technique, include 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, obtains chloride ferric trichloride after reaction；
Step 2：Low-boiling titanium tetrachloride is collected with the spray method condensation of cold titanium tetrachloride, it is filtered to remove mud, obtain
Crude titanic chloride, crude titanic chloride passes through and removes alum, then through silicon tetrachloride impurity is distilled off, obtains refining titanic chloride；
Step 3：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 4：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
Be cooled to 200 DEG C, step by step separated from chlorine titanium dioxide with cyclone separator and cloth bag collector, titanium dioxide into
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, obtains the qualified slurries of mashing；
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, after slurry is sent into mill after mill
Storage tank, is pumped to classifier, coarse fodder returns to sand mill, and fines flow to surface treatment tank certainly through slurry classification；
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
Play leaf
Filter, is put into the rinsing bowl full of desalted water and carries out slurry washing, and after washing is qualified, bridge crane slings leaf filter and exists
Slurry is unloaded in blowpit；
Step 10：After the slurry that blowpit unloads enters homogenizer mashing uniformly, spray dryer is pumped into through membrane,
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 wind are discharged into air, dried Ti O2 powders through exhaust blower；
Step 11：Set screw conveyor to convey powder through feed bin before flow delivery systems feeding vapour powder, under feed bin to enter
Airslide disintegrating mill, collects to obtain powder；
Step 12：Into screw conveyor, finished product bin is sent into, packing machine is packed, and completes production.
Step 1 detailed process is to be added from the circulating chlorine gas that oxidation operation returns from furnace bottom, and reacting gas is first through rotation
Wind separator separates unreacted solid dust and nonvolatile chloride from reacting gas, then carries out cold step by step
But, condense, first isolate the chloride of ferrous iron, then separate the chloride ferric trichloride of mid-boiling point.
Oxidation reaction initiation temperature is more than 800 DEG C in the step 4, and main reaction is reacted for 1300~1800 DEG C.
The titanium dioxide granule for the air-flow entrainment reaction generation that reactor comes out in the step 5.
The step 11 is further including airslide disintegrating mill inlet, grinding aid is added into powder with mobile pump, in gas
Hot steam is pressed through in bying the use of as working medium in stream pulverizer, crushing powder to about 0.3 μm of average grain diameter, go out airslide disintegrating mill logistics into
Turbo-steam separates powder, goes out turbo-steam tail gas and flows into the Ti O2 powders that temperature bag filter isolates entrainment again, goes out temperature bag
Filter air-flow is after Quench of spraying water, and into washer, the condensed water after washing goes type washing trough to be used to wash, and goes out washer not
Solidifying property gas is discharged into air, the powder collected by turbo-steam blasts air by air blower through vapour liquid separator by exhaust blower
Fluidization, by air cooling, logistics enters cooling cyclonic separation and goes out powder powder, goes out to cool down cyclonic air flow and is separated again into bag hose
Carry powder secretly, go out bag hose air-flow and air is discharged into by exhaust blower；By cooling whirlwind, bag hose.
Packing machine for 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 exhaust gas waste material is less, drop
The production cost of low titanium white powder, improves 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
The embodiment of the present invention is 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 white production technique, includes the following steps；
Include 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：Low-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 reacted for 1300~1800 DEG C.
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
Be cooled to 200 DEG C, step by step separated from chlorine titanium dioxide with cyclone separator and cloth bag collector, titanium dioxide into
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, obtains the qualified slurries of mashing.
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, after slurry is sent into mill after mill
Storage tank, is pumped to classifier, coarse fodder returns to sand mill, and fines flow to surface treatment tank certainly through slurry classification.
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
Play leaf
Filter, is put into the rinsing bowl full of desalted water and carries out slurry washing, and after washing is qualified, bridge crane slings leaf filter and exists
Slurry is unloaded in blowpit.
Step 10：After the slurry that blowpit unloads enters homogenizer mashing uniformly, spray dryer is pumped into through membrane,
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 wind are discharged into air, dried Ti O2 powders through exhaust blower.
Step 11：Set screw conveyor 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 inlet, adds grinding aid into powder, in being used in airslide disintegrating mill with mobile pump
Hot steam 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 separate powder into turbo-steam
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, and 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 separate entrainment powder, output filter again into bag hose
Device air-flow is discharged into air by exhaust blower；Powder is collected to obtain by cooling whirlwind, bag hose.
Step 12：Into screw conveyor, 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 (6)
1. a kind of titanium white production technique, it is characterised in that include 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, instead
Should after obtain chloride ferric trichloride；
Step 2：Low-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 3：Nucleator, crystal inversion accelerating agent reactant necessary to the preheated oxygen of refining titanic chloride and reaction
Add oxidation reactor；
Step 4：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 the qualified slurries of mashing；
Step 7：After sand mill feed well redisperse, sand mill is squeezed into through feed pump of sand mill, slurry is sent into storage tank after mill 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, is put into the rinsing bowl full of desalted water and carries out slurry washing, and 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 membrane, 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 wind is discharged into air, dried TiO2 powders through exhaust blower；
Step 11：Set screw conveyor to convey powder through feed bin before flow delivery systems feeding vapour powder, under feed bin and enter air-flow
Pulverizer, collects to obtain powder；
Step 12：Into screw conveyor, finished product bin is sent into, packing machine is packed, and completes production.
A kind of 2. titanium white production technique according to claim 1, it is characterised in that step 1 detailed process be from
The circulating chlorine gas that oxidation operation returns is added from furnace bottom, reacting gas first through cyclone separator by unreacted solid dust and not
The chloride of volatilization is separated from reacting gas, is then carried out cooling down step by step, is condensed, first isolates the chloride of ferrous iron,
The chloride ferric trichloride of mid-boiling point is separated again.
3. a kind of titanium white production technique according to claim 1, it is characterised in that oxidation reaction is drawn in the step 4
It is more than 800 DEG C to send out temperature, and main reaction is reacted for 1300~1800 DEG C.
4. a kind of titanium white production technique according to claim 1, it is characterised in that reactor comes out in the step 5
Air-flow entrainment reaction generation titanium dioxide granule.
5. a kind of titanium white production technique according to claim 1, it is characterised in that the step 11 is further including air-flow
Pulverizer inlet, adds grinding aid into powder with mobile pump, hot steam is pressed through as work in airslide disintegrating mill
Matter, crushes powder to about 0.3 μm of average grain diameter, goes out airslide disintegrating mill logistics and separate powder into turbo-steam, go out turbo-steam tail
Air-flow isolates the TiO2 powders of entrainment into high temperature bag hose again, goes out high temperature bag hose air-flow after Quench of spraying water, into washing
Device, the condensed water after washing go type washing trough to be used to wash, go out the incoagulable gas of washer through vapour liquid separator, by exhaust blower
Air is discharged into, air fluidization is blasted by air blower by the powder that turbo-steam is collected, powder is entered by air cooling, logistics
Cooling cyclonic separation goes out powder, goes out to cool down cyclonic air flow and separates entrainment powder again into bag hose, goes out bag hose air-flow by exhaust blower
It is discharged into air；By cooling whirlwind, bag hose.
6. a kind of titanium white production technique according to claim 1, it is characterised in that packing machine is in the step 12
25kg/ bag package machines supply 1000kg/ bag package machines.
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| CN201711221926.3A CN107954472A (en) | 2017-11-29 | 2017-11-29 | A kind of titanium white production technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107555A (en) * | 2018-08-04 | 2019-01-01 | 山东迅达化工集团有限公司 | The preparation method of titania support |
| CN109453876A (en) * | 2018-10-26 | 2019-03-12 | 四川大学 | Flow of superheated steam ultra-fine grinding tail gas condensing-boil closed loop process again |
| CN109592708A (en) * | 2019-01-30 | 2019-04-09 | 广西雅照钛白有限公司 | The production method of colorant high Chromaticity power sulfuric acid process enamel grade titanium dioxide powder |
| 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 CN201711221926.3A patent/CN107954472A/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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107555A (en) * | 2018-08-04 | 2019-01-01 | 山东迅达化工集团有限公司 | The preparation method of titania support |
| CN109453876A (en) * | 2018-10-26 | 2019-03-12 | 四川大学 | Flow of superheated steam ultra-fine grinding tail gas condensing-boil closed loop process again |
| CN109453876B (en) * | 2018-10-26 | 2020-05-26 | 四川大学 | Condensation-reboiling closed circulation method for tail gas generated by ultrafine grinding of superheated steam |
| CN109592708A (en) * | 2019-01-30 | 2019-04-09 | 广西雅照钛白有限公司 | The production method of colorant high Chromaticity power sulfuric acid process enamel grade titanium dioxide powder |
| 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 |
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Application publication date: 20180424 |