CN101024733A - Method for producing chemical-fiber-grade titanium dioxide - Google Patents
Method for producing chemical-fiber-grade titanium dioxide Download PDFInfo
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- CN101024733A CN101024733A CN 200610038356 CN200610038356A CN101024733A CN 101024733 A CN101024733 A CN 101024733A CN 200610038356 CN200610038356 CN 200610038356 CN 200610038356 A CN200610038356 A CN 200610038356A CN 101024733 A CN101024733 A CN 101024733A
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Abstract
The invention relates to a manufacture method for titanium dioxide of chemical fiber class. It includes the following processes: mixing titanium dioxide raw material with water, whisking, crashing, depositing, drying, and taking dried powder crashing. It also includes at least twice sizing process to titanium dioxide and water. The titanium dioxide and water solution would take surface treatment after taking depositing process. The surface treatment agent is dimethyl silicon oil. The invention could make the yield to reach 98% and have stable quality.
Description
Technical field:
The present invention relates to the production method of the production method of titanium dioxide, particularly chemical-fiber-grade titanium dioxide.
Background technology:
Chemical-fiber-grade titanium dioxide is to be used for the delustring auxiliary agent that chemical fibre industry is produced, and since the sixties, China's chemical-fiber-grade titanium dioxide all depends on from external Japan, German import, and annual demand develops into 35000 tons from several kilotons.In recent years, the research that domestic many titanium dioxide production producers and R﹠D institution all produce chemical-fiber-grade titanium dioxide has one after another obtained some achievements in research.At present, the method of domestic production chemical-fiber-grade titanium dioxide, it as the patent No. 00119513.1 Chinese invention patent " a kind of method for preparing chemical-fiber-grade titanium dioxide ", the method of its disclosed production chemical-fiber-grade titanium dioxide is: the employing ordinary titanium dioxide is a raw material, the chemical-fiber-grade titanium dioxide product is prepared in technical process such as process batching, pulverizing, branch are left away slightly, coating, precipitation, oven dry, abrasive dust; Its concrete processing step is as follows: ordinary titanium dioxide and nonionic water are added in the reactor with 1: 6～8 ratio stir, carry out thorough mixing under the state of PH=7; Enter grinding plant then, fully grind under 60 ℃～70 ℃, time length is decided according to raw materials quality, and the particle that terminal point is controlled at particle diameter 0.1 μ m～0.3 μ m accounts for 92%～94%, stops to grind; Mixture after the grinding adopts the deadweight settling process to divide and leaves away slightly, 2～3 hours time, remove the coarse grain of particle diameter, enter the coating operation again, carry out coating at 50 ℃～60 ℃ any or several compounds that add in potassium, aluminium, arsenic, silicon, zirconium, the phosphorus down greater than 1 μ m; And then the adding flocculation agent precipitates; Remove moisture, throw out is carried out drying; With ultrafine crusher dry thing is pulverized, obtained the chemical-fiber-grade titanium dioxide product.The method of this production chemical-fiber-grade titanium dioxide is because separating effect is bad, so than higher, the user causes fracture of wire to the particle of the chemical-fiber-grade titanium dioxide of producing easily in the process of carrying out the spinning operation less than the proportion of 0.2 μ m.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of separate particles of titanium dioxide satisfactory for result, the production method of the chemical-fiber-grade titanium dioxide that yield is high.
Solution of the present invention is: comprise with the titanium dioxide raw material mix with water, stir, pulverize, precipitate, dry, carry out dry powder again and pulverize, comprise that also secondary is to the fractional separation processing of the solution of titanium dioxide raw material and water at least.
Also comprise surface treatment to the solution of titanium dioxide raw material after the precipitation process and water.
The pH value of adjusting the solution of titanium dioxide raw material and water during stirring is 6.5-7.5.
The wet process disintegrator pulverizing is adopted in pulverizing after stirring, before heavy fixed.
The concentration of titanium dioxide raw material and the mixed solution of water is 10-30%.
The particle dia that the solution of titanium dioxide raw material and water is carried out the titanium dioxide after the scalping separating treatment is between 0.35-0.5 μ m, and the particle dia of the titanium dioxide after the secondary fractional separation is handled is between 0.2-0.35 μ m.
The titanium dioxide raw material after adopting surface treatment agent to precipitation process and the solution of water carry out surface treatment.
Surface treatment agent is a dimethyl silicone oil.
The present invention adopts slightly, thin secondary separates, the separating effect ideal, and the yield height of titanium dioxide reaches 98%, is in the top standard of the domestic and international same industry, constant product quality.
Embodiment:
Embodiment 1: 800 kilograms of raw material titanium dioxide and secondary pure water are joined in the steel basin for 3200 kilograms, be mixed with the solution of 25% concentration, stir half an hour, adjust simultaneously pH value to 6.5 while stirring, pulverize through GSF efficient wet pulverizer then, stir, pulverize again, pulverized repeatedly 1.5 hours, advance the ultra-fine split pole machine of GSDF25J by pumping again and carry out the scalping separation, the particle dia of the titanium dioxide after the scalping separating treatment is 0.4 μ m, advance the ultra-fine split pole machine of GSDF10 by pumping again and carry out the secondary fractional separation, the particle dia of the titanium dioxide after the secondary fractional separation is handled is 0.3 μ m.The titanium dioxide raw material after the secondary fractional separation and the solution of water are sent into setting tank, add 80 kilograms of ammonium hydrogencarbonate precipitation agents, stir, precipitate and discharge clear water after 8 hours, the concentration that precipitates is that the solution of 33% titanium dioxide raw material and water is by being pumped to the surface treatment groove, in the surface treatment groove, add 4 kilograms of dimethyl silicone oil surface treatment agents, stir and carried out surface treatment in 1 hour, carry out drying treatment by being pumped to 1000 type spray-drying towers again, the drying treatment temperature is 360 ℃, after the drying treatment 3 minutes, the solution of titanium dioxide raw material and water becomes 784 kilograms of titanium dioxide dry powder, and titanium dioxide dry powder is delivered to feed bin, delivers to pulverizer through mechanical oscillation and pulverizes, titanium dioxide dry powder after pulverizing is delivered to finished product bin, automatic gauge, packing.
Embodiment 2: 800 kilograms of raw material titanium dioxide and secondary pure water are joined in the steel basin for 4000 kilograms, be mixed with the solution of 20% concentration, stir half an hour, adjust simultaneously pH value to 7 while stirring, pulverize through GSF efficient wet pulverizer then, stir, pulverize again, pulverized repeatedly 1.5 hours, advance the ultra-fine split pole machine of GSDF25J by pumping again and carry out the scalping separation, the particle dia of the titanium dioxide after the scalping separating treatment is 0.45 μ m, advance the ultra-fine split pole machine of GSDF10 by pumping again and carry out the secondary fractional separation, the particle dia of the titanium dioxide after the secondary fractional separation is handled is 0.25 μ m.The titanium dioxide raw material after the secondary fractional separation and the solution of water are sent into setting tank, add 80 kilograms of ammonium hydrogencarbonate precipitation agents, stir, precipitate and discharge clear water after 8 hours, the concentration that precipitates is that the solution of 33% titanium dioxide raw material and water is by being pumped to the surface treatment groove, in the surface treatment groove, add 4 kilograms of dimethyl silicone oil surface treatment agents, stir and carried out surface treatment in 1 hour, carry out drying treatment by being pumped to 1000 type spray-drying towers again, the drying treatment temperature is 360 ℃, after the drying treatment 3 minutes, the solution of titanium dioxide raw material and water becomes 785 kilograms of titanium dioxide dry powder, and titanium dioxide dry powder is delivered to feed bin, delivers to pulverizer through mechanical oscillation and pulverizes, titanium dioxide dry powder after pulverizing is delivered to finished product bin, automatic gauge, packing.
Embodiment 3: 800 kilograms of raw material titanium dioxide and secondary pure water are joined in the steel basin for 4800 kilograms, be mixed with the solution of 17% concentration, stir half an hour, adjust simultaneously pH value to 7.5 while stirring, pulverize through GSF efficient wet pulverizer then, stir, pulverize again, pulverized repeatedly 1.5 hours, advance the ultra-fine split pole machine of GSDF25J by pumping again and carry out the scalping separation, the particle dia of the titanium dioxide after the scalping separating treatment is 0.5 μ m, advance the ultra-fine split pole machine of GSDF10 by pumping again and carry out the secondary fractional separation, the particle dia of the titanium dioxide after the secondary fractional separation is handled is 0.35 μ m.The titanium dioxide raw material after the secondary fractional separation and the solution of water are sent into setting tank, add 80 kilograms of ammonium hydrogencarbonate precipitation agents, stir, precipitate and discharge clear water after 8 hours, the concentration that precipitates is that the solution of 33% titanium dioxide raw material and water is by being pumped to the surface treatment groove, in the surface treatment groove, add 4 kilograms of dimethyl silicone oil surface treatment agents, stir and carried out surface treatment in 1 hour, carry out drying treatment by being pumped to 1000 type spray-drying towers again, the drying treatment temperature is 360 ℃, after the drying treatment 3 minutes, the solution of titanium dioxide raw material and water becomes 783 kilograms of titanium dioxide dry powder, and titanium dioxide dry powder is delivered to feed bin, delivers to pulverizer through mechanical oscillation and pulverizes, titanium dioxide dry powder after pulverizing is delivered to finished product bin, automatic gauge, packing.
Claims (8)
1, the production method of chemical-fiber-grade titanium dioxide, comprise with the titanium dioxide raw material mix with water, stir, pulverize, precipitate, dry, carry out dry powder again and pulverize, it is characterized in that also comprising that secondary is to the fractional separation processing of the solution of titanium dioxide raw material and water at least.
2, the production method of chemical-fiber-grade titanium dioxide according to claim 1 is characterized in that also comprising the surface treatment to the solution of titanium dioxide raw material after the precipitation process and water.
3, the production method of chemical-fiber-grade titanium dioxide according to claim 1 and 2, the pH value of adjusting the solution of titanium dioxide raw material and water when it is characterized in that stirring is 6.5-7.5.
4, the production method of chemical-fiber-grade titanium dioxide according to claim 1, the pulverizing of it is characterized in that after stirring, sinking before deciding adopts wet process disintegrator to pulverize.
5, the production method of chemical-fiber-grade titanium dioxide according to claim 3, the concentration that it is characterized in that titanium dioxide raw material and the mixed solution of water is 10-30%.
6, the production method of chemical-fiber-grade titanium dioxide according to claim 1, it is characterized in that particle dia that solution to titanium dioxide raw material and water carries out the titanium dioxide after the scalping separating treatment between 0.35-0.5 μ m, the particle dia of the titanium dioxide after the secondary fractional separation is handled is between 0.2-0.35 μ m.
7, the production method of chemical-fiber-grade titanium dioxide according to claim 2, the titanium dioxide raw material after it is characterized in that adopting surface treatment agent to precipitation process and the solution of water carry out surface treatment.
8, the production method of chemical-fiber-grade titanium dioxide according to claim 7 is characterized in that surface treatment agent is a dimethyl silicone oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200610038356 CN101024733A (en) | 2006-02-20 | 2006-02-20 | Method for producing chemical-fiber-grade titanium dioxide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610038356 CN101024733A (en) | 2006-02-20 | 2006-02-20 | Method for producing chemical-fiber-grade titanium dioxide |
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| CN101024733A true CN101024733A (en) | 2007-08-29 |
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| CN 200610038356 Pending CN101024733A (en) | 2006-02-20 | 2006-02-20 | Method for producing chemical-fiber-grade titanium dioxide |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880479A (en) * | 2010-06-25 | 2010-11-10 | 宁波新福钛白粉有限公司 | Method for producing special rutile type titanium white powder for power coating |
| CN102443282A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Preparation method of titanium dioxide for chemical fiber |
| CN102443283A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Pulping process for fiber titanium dioxide |
| CN105110365A (en) * | 2015-08-20 | 2015-12-02 | 河北麦森钛白粉有限公司 | Food-grade titanium dioxide producing system and technology |
| CN106490453A (en) * | 2016-10-20 | 2017-03-15 | 上海江沪实业有限公司 | A kind of food additive Titanium Dioxide and its production procedure |
| CN106490452A (en) * | 2016-10-20 | 2017-03-15 | 上海江沪实业有限公司 | A kind of compound colorant and its production procedure |
| CN111471325A (en) * | 2020-05-11 | 2020-07-31 | 华东理工大学 | Method for improving fluidity of titanium dioxide for chinlon chemical fiber |
| CN115029019A (en) * | 2022-07-12 | 2022-09-09 | 龙佰禄丰钛业有限公司 | Adding process of organic coating agent in titanium dioxide production |
-
2006
- 2006-02-20 CN CN 200610038356 patent/CN101024733A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880479A (en) * | 2010-06-25 | 2010-11-10 | 宁波新福钛白粉有限公司 | Method for producing special rutile type titanium white powder for power coating |
| CN102443282A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Preparation method of titanium dioxide for chemical fiber |
| CN102443283A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Pulping process for fiber titanium dioxide |
| CN105110365A (en) * | 2015-08-20 | 2015-12-02 | 河北麦森钛白粉有限公司 | Food-grade titanium dioxide producing system and technology |
| CN106490453A (en) * | 2016-10-20 | 2017-03-15 | 上海江沪实业有限公司 | A kind of food additive Titanium Dioxide and its production procedure |
| CN106490452A (en) * | 2016-10-20 | 2017-03-15 | 上海江沪实业有限公司 | A kind of compound colorant and its production procedure |
| CN111471325A (en) * | 2020-05-11 | 2020-07-31 | 华东理工大学 | Method for improving fluidity of titanium dioxide for chinlon chemical fiber |
| CN115029019A (en) * | 2022-07-12 | 2022-09-09 | 龙佰禄丰钛业有限公司 | Adding process of organic coating agent in titanium dioxide production |
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