CN102442656A - Method for producing titanium phosphate fire retardant with titanium white waste acid - Google Patents
Method for producing titanium phosphate fire retardant with titanium white waste acid Download PDFInfo
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- CN102442656A CN102442656A CN2010105066806A CN201010506680A CN102442656A CN 102442656 A CN102442656 A CN 102442656A CN 2010105066806 A CN2010105066806 A CN 2010105066806A CN 201010506680 A CN201010506680 A CN 201010506680A CN 102442656 A CN102442656 A CN 102442656A
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- titanium
- fire retardant
- titanium phosphate
- waste acid
- tio
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Abstract
The invention discloses a method for producing titanium phosphate fire retardant with titanium white waste acid, which is characterized in that 85 weight percent by weight of phosphoric acid is added into waste sulphuric acid containing TiO2, hydrated titanium phosphate is produced, wherein the mass ratio of sulphuric acid toand the TiO2 is 3:1; the produced hydrated titanium phosphate and desalted water isare rinsed with desalted water and is precipitated, after deferrization, the product is dried under 105 DEG C, then is calcinated under 450 DEG C for 2h, after being cooled, the product is smashed to obtain white powder which is titanium phosphate fire retardant. The invention can be applied to a manufacturer with the yield of 10 thousand tons of the TiO2, and with the invention, the waste sulphuric acid can be processed, and 350 tons of titanium phosphate fire retardant can be produced per year. The titanium phosphate produced with the invention can be used to replace antimonous oxide as fire retardant, and is non-toxic, green and environment-friendly.
Description
Technical field
The present invention relates to the titanium white waste acid processing technology field, particularly a kind of method of utilizing titanium white waste acid to produce the titanium phosphate fire retardant.
Background technology
The hydrolysis workshop section of Producing Titanium Dioxide generates a large amount of hydrolysis spent acid: convert, white titanium pigment per ton will have 7 ton 20～22% sulfur waste acid to produce, and the typical composition in its sulfur waste acid is seen table 1
Table 1
During hydrolysis, general control hydrolysis rate 96～97% that is to say that 3～4% titanium has run off in spent acid, and the past is never utilized, and has not only wasted resource, and has caused environmental pollution.
Summary of the invention
Technical problem to be solved by this invention is to be directed against the existing in prior technology problem and a kind of method of utilizing titanium white waste acid to produce the titanium phosphate fire retardant is provided.
Technical problem to be solved by this invention can realize through following technical scheme:
A kind of titanium white waste acid that utilizes is produced the titanium phosphate fire retardant, it is characterized in that, to containing TiO
2Sulfur waste acid in to add weight percent concentration be 85% phosphoric acid, generate the hypophosphite monohydrate titanium, wherein phosphoric acid and TiO
2Mass ratio be 3: 1; The hypophosphite monohydrate titanium that generates washs with de-salted water, behind deposition, the removal iron, 105 ℃ of oven dry down, again at 450 ℃ of following roasting 2h, after the cooling, pulverizes and obtains white powder, is the fire retardant titanium phosphate;
The reaction formula that generates the hypophosphite monohydrate titanium is following:
TiO?SO
4+2m?H
3PO
4+nH
2O→TIO
2·mP
2O
5·nH
2O↓+H
2SO
4。
Owing to adopted technical scheme as above, the present invention is applied to produce per year 10,000 tons of TiO
2Producer, can handle sulfur waste acid every year, produces 350 tons of fire retardant titanium phosphates.The titanium phosphate that the present invention produces can replace Antimony Trioxide: 99.5Min as fire retardant, and nontoxic, green, environmental protection.
Embodiment
A kind of titanium white waste acid that utilizes is produced the titanium phosphate fire retardant, it is characterized in that, to containing TiO
2Sulfur waste acid in to add weight percent concentration be 85% phosphoric acid, generate the hypophosphite monohydrate titanium, wherein phosphoric acid and TiO
2Mass ratio be 3: 1; The hypophosphite monohydrate titanium that generates washs with de-salted water, behind deposition, the removal iron, 105 ℃ of oven dry down, again at 450 ℃ of following roasting 2h, after the cooling, pulverizes and obtains white powder, is the fire retardant titanium phosphate;
The reaction formula that generates the hypophosphite monohydrate titanium is following:
TiO?SO
4+2m?H
3PO
4+nH
2O→TIO
2·mP
2O
5·nH
2O↓+H
2SO
4。
Claims (1)
1. one kind is utilized titanium white waste acid to produce the titanium phosphate fire retardant, it is characterized in that, to containing TiO
2Sulfur waste acid in to add weight percent concentration be 85% phosphoric acid, generate the hypophosphite monohydrate titanium, wherein phosphoric acid and TiO
2Mass ratio be 3: 1; The hypophosphite monohydrate titanium that generates washs with de-salted water, behind deposition, the removal iron, 105 ℃ of oven dry down, again at 450 ℃ of following roasting 2h, after the cooling, pulverizes and obtains white powder, is the fire retardant titanium phosphate;
The reaction formula that generates the hypophosphite monohydrate titanium is following:
TiO?SO
4+2m?H
3PO
4+nH
2O→TIO
2·mP
2O
5·nH
2O↓+H
2SO
4。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105066806A CN102442656A (en) | 2010-10-14 | 2010-10-14 | Method for producing titanium phosphate fire retardant with titanium white waste acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105066806A CN102442656A (en) | 2010-10-14 | 2010-10-14 | Method for producing titanium phosphate fire retardant with titanium white waste acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102442656A true CN102442656A (en) | 2012-05-09 |
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ID=46005656
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105066806A Pending CN102442656A (en) | 2010-10-14 | 2010-10-14 | Method for producing titanium phosphate fire retardant with titanium white waste acid |
Country Status (1)
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| CN (1) | CN102442656A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045189A (en) * | 2014-07-04 | 2014-09-17 | 安徽安纳达钛业股份有限公司 | Comprehensive treatment method of phosphorous production wastewater |
| CN106219614A (en) * | 2016-09-27 | 2016-12-14 | 四川龙蟒钛业股份有限公司 | Utilize the method that titanium white waste acid produces low titanium ferrous slag |
| CN107324302A (en) * | 2017-08-03 | 2017-11-07 | 四川龙蟒钛业股份有限公司 | A kind of method that titanium white waste acid prepares titanium phosphate |
| CN115231540A (en) * | 2022-08-05 | 2022-10-25 | 山东鲁北国际新材料研究院有限公司 | Method for preparing titanium phosphate from byproduct waste acid generated in titanium dioxide production by chlorination process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833616B1 (en) * | 1969-09-02 | 1973-10-16 | ||
| JPS4919520A (en) * | 1972-06-14 | 1974-02-21 | ||
| CN1202456A (en) * | 1997-06-13 | 1998-12-23 | 柯如 | Process for producing titanium phosphate |
-
2010
- 2010-10-14 CN CN2010105066806A patent/CN102442656A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833616B1 (en) * | 1969-09-02 | 1973-10-16 | ||
| JPS4919520A (en) * | 1972-06-14 | 1974-02-21 | ||
| CN1202456A (en) * | 1997-06-13 | 1998-12-23 | 柯如 | Process for producing titanium phosphate |
Non-Patent Citations (3)
| Title |
|---|
| 安俐: "利用钛废液制备磷酸钛", 《无机盐工业》, no. 4, 1 May 1991 (1991-05-01), pages 40 - 43 * |
| 张益都: "《硫酸法钛白粉生产技术创新》", 31 May 2001, article "用磷酸回收钛制作磷酸钛", pages: 300 * |
| 王秉济: "利用水解废酸制备磷酸钛", 《化学世界》, no. 12, 21 September 1992 (1992-09-21), pages 5567 - 5570 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045189A (en) * | 2014-07-04 | 2014-09-17 | 安徽安纳达钛业股份有限公司 | Comprehensive treatment method of phosphorous production wastewater |
| CN106219614A (en) * | 2016-09-27 | 2016-12-14 | 四川龙蟒钛业股份有限公司 | Utilize the method that titanium white waste acid produces low titanium ferrous slag |
| CN107324302A (en) * | 2017-08-03 | 2017-11-07 | 四川龙蟒钛业股份有限公司 | A kind of method that titanium white waste acid prepares titanium phosphate |
| CN107324302B (en) * | 2017-08-03 | 2019-10-18 | 四川龙蟒钛业股份有限公司 | A kind of method that titanium white waste acid prepares titanium phosphate |
| CN115231540A (en) * | 2022-08-05 | 2022-10-25 | 山东鲁北国际新材料研究院有限公司 | Method for preparing titanium phosphate from byproduct waste acid generated in titanium dioxide production by chlorination process |
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Application publication date: 20120509 |