CN1006635B - Method for preparing titanium white power using iron-smelting blast-furnace slag containing titanium - Google Patents
Method for preparing titanium white power using iron-smelting blast-furnace slag containing titaniumInfo
- Publication number
- CN1006635B CN1006635B CN 86108511 CN86108511A CN1006635B CN 1006635 B CN1006635 B CN 1006635B CN 86108511 CN86108511 CN 86108511 CN 86108511 A CN86108511 A CN 86108511A CN 1006635 B CN1006635 B CN 1006635B
- Authority
- CN
- China
- Prior art keywords
- titanium
- furnace slag
- sulfuric acid
- titanium dioxide
- iron
- 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.)
- Expired
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The present invention relates to a method for preparing titanium white powder from iron-smelting blast furnace slag containing titanium, which belongs to the field of titanium dioxide production by a wet method. The method is characterized in that iron-smelting blast furnace slag powder containing titanium is decomposed by 10 to 96% of sulfuric acid, the dosage of the sulfuric acid and the decomposition temperature are controlled, titanium sulfate is leached out by water and hydrolytic mother liquid, and the titanium white powder with a welding rod grade, an enamel grade and a metallurgy grade are prepared and completely conforms to the using standard in China at present. The cost of the present invention is lower than that of titanium white prepared from ilmenite concentrated ores, and the present invention provides a feasible technical approach for recovering titanium from a large amount of titanium-containing blast furnace slag in China; in addition, the process is simple and short, and the industrial production is realized by adopting conventional devices.
Description
The invention belongs to wet production titanium dioxide field, promptly decompose iron-smelting blast-furnace slag, therefrom produce titanium dioxide with sulfuric acid.Employed iron-smelting blast-furnace slag is a kind of high alkalinity titanium-containing blast furnace slag, contains TiO
221-26% is with the titandiopside of smelting process generation, the TiO that the uhligite form exists
2Account for TiO
2Total content more than 80% and contain CaO21-27%, SiO
221-25%, Al
2O
39-15%, MgO4-8%, and a small amount of other impurity, its Chemical Composition and ore deposit phase composite have essential difference with common iron-smelting blast-furnace slag.As cement raw material, it is high that titaniferous is disliked, thereby cause strength of cement to reduce; As carrying titanium material, titaniferous is very low again, and impurity such as calcic, magnesium, silicon, aluminium are very high in the slag, are that a kind of low-grade poor quality is carried titanium material.
Proposing a kind of method among the clear 39-19958 of Japanese Patent, is that raw material is produced titanium sulfate solution with the sand iron ore slag.This slag contains TiO
223.19%, SiO
223.89%, CaO24.22%, Al
2O
313.04%, MgO8.26% etc.The principle process that they handle the sand iron ore slag as shown in Figure 1.It adopts the dilute sulphuric acid repeated multiple times to handle the sand iron ore slag, and agitation and filtration makes titanium and silicon enter solution, adds the vitriol oil then, is settled out SiO from solution
2, reach the silicon titanium and separate, obtain titanium sulfate solution.This flow process is tediously long, and the silica removal operation must be arranged.
Except that this Japanese Patent is to be that raw material is produced the titanium sulfate solution with the sand iron ore slag, is that raw material is produced titanium sulfate solution with ilmenite concentrate or titanium slag all generally both at home and abroad at present, therefrom makes titanium dioxide.
The purpose of this invention is to provide a kind of method of from the titaniferous iron-smelting blast-furnace slag, producing titanium dioxide.
The present invention is milled down to aforementioned blast furnace slag less than 0.074 millimeter, and adding concentration is the sulfuric acid of 10-96%,, heats under normal pressure and carries out the acid decomposition for well with concentration 50-85% sulfuric acid, and the sulfuric acid consumption is generally 1.1-1.6 times of theoretical amount, doubly is best with 1.2-1.4.The temperature of acid decomposition course control is generally 160-280 ℃, is good with 180-230 ℃.Through 1-3 hour, sour rate of decomposition reached about 90%.Leach titanium vitriol at 70-90 ℃ of water and hydrolysising mother liquid then, the liquid-solid ratio of this process control is 2.3-3.0, obtains containing TiO
2The 50-70 grams per liter, Al
2O
3The 25-30 grams per liter, the titanium sulfate solution of MgO10-20 grams per liter, and impurity such as silicon are deposited in the sour decompose slag, need not special removal of impurities operation.The principle process that the present invention's acid is decomposed as shown in Figure 2.This titanium sulfate solution impurity concentration height, and titanium concentration is far below the strength of solution of existing industry system titanium white.The present invention keeps the Ti(3 valency with the titanium sulfate solution that leaches) the 2-3 grams per liter, sour ratio is about 4.0, does not need to concentrate, under normal pressure, temperature is 60-90 ℃, adds the crystal seed hydrolysis that 1-2% makes routinely, obtains the metatitanic acid precipitation.Filter then, washing, oven dry, the high temperature calcination is met the titanium dioxide of welding rod level, enamel level and the metallurgical grade of present Chinese use standard fully.
The present invention has opened up the bright prospects of comprehensive utilization for China Iron And Steel Company titanium-containing blast furnace slag tens million of tons of meters, that pile up like a mountain has found a possible technique approach that reclaims titanium.Production Flow Chart of the present invention is brief, need not special removal of impurities operation, the disposable titanium sulfate solution that obtains.Adopt conventional chemical industry, metallurgical equipment, can realize suitability for industrialized production, the recyclable 80-90% of the titanium in the blast furnace slag.The rough cost of titanium white of the present invention is lower than the cost of above-mentioned other titanium dioxide of level of producing with sulfuric acid process from ilmenite concentrate.
Example one: get certain Iron And Steel Company's blast furnace slag powder 500 gram, wherein contain TiO less than 0.074 millimeter
225.71%, Al
2O
39.69%, CaO25.19%, SiO
221.42%, MgO4.38%, Fe(is total) 3.55%, and the titanium that wherein exists with the titandiopside that produces in the smelting process and uhligite form accounts for total titaniferously more than 80%, decomposes with the sulfuric acid of concentration 90%, its consumption is 1.4 times of theoretical amount, stir, be heated to 230 ℃, be incubated 2 hours, cooling back with liquid-solid ratio be 2.5 water and hydrolysising mother liquid 70 ℃ of leachings 1 hour, its titanium rate of decomposition is 90.05%.
Example two: get certain Iron And Steel Company's titanium-containing blast furnace slag powder 20 gram, wherein contain TiO less than 0.074 millimeter
224.40%, Al
2O
313.43%, CaO26.17%, SiO
222.55%, MgO7.34%, Fe(is total) 2.00%, and wherein the titanium that exists with the titandiopside that produces in the smelting process and uhligite form accounts for total titaniferous more than 80%, sulfuric acid with concentration 10% decomposed, and its consumption is 1.6 times of theoretical amount, 200 ℃ of insulations 3 hours, with liquid-solid ratio is the agitation leach 1 hour under 70 ℃ condition of 2.5 water and hydrolysising mother liquid, and its titanium rate of decomposition is 87.5%.
Example three: getting the blast furnace slag powder identical with example two 20 grams, is that 60% sulfuric acid decomposes with concentration, and its consumption is 1.6 times of theoretical amount, and all the other press processing condition acid decomposition, the leaching of example two, and its titanium rate of decomposition is 94.02%.
The titanium sulfate solution that aforesaid method is made mixes, control Ti(3 valency) be the 2-3 grams per liter, sour ratio is about 4.0, after adding crystal seed, can make titanium sulfate solution be hydrolyzed into the metatitanic acid precipitation.Measure 400 milliliters of above-mentioned titanium sulfate solutions respectively, 600 milliliters and 2000 milliliters, be heated to 50-70 ℃, add the crystal seed that 1-2% makes routinely respectively, boiled 2.5-3 hour, filter, washing, oven dry, 850 ℃-950 ℃ calcination 2-4 hour, met the titanium dioxide of welding rod level, enamel level and the metallurgical grade of present Chinese use standard fully, its titanium white recovery rate is respectively 86%, 91.6% and 92.1%.
Claims (6)
1, with the method for titaniferous iron-smelting blast-furnace slag wet production titanium dioxide, it comprises ore grinding, sour decomposition, leaching, hydrolysis, filtration, washing, high temperature calcination, the invention is characterized in sulfuric acid to decompose the titanium-containing blast furnace slag powder, and its granularity contains TiO less than 0.074 millimeter
221-26%, the TiO that exists with titandiopside, uhligite form in the blast furnace slag
2Account for TiO
2More than 80% of total content contains CaO21-27%, SiO
221-25%, Al
2O
39-15%, MgO4-8%, used sulfuric acid concentration are 10-96%, the sulfuric acid consumption is 1.1-1.6 a times of theoretical amount, and temperature that its acid is decomposed is 160-280 ℃, and water and hydrolysising mother liquid leach the sulfuric acid degradation production, its liquid-solid ratio is 2.3-3.0, adds crystal seed and makes the titanium sulfate solution thermal hydrolysis, makes titanium dioxide.
2,, it is characterized in that used sulfuric acid concentration is good with 50-85% according to the method for the described production titanium dioxide of claim 1.
3,, it is characterized in that the sulfuric acid consumption thinks that the 1.2-1.4 of theoretical amount is doubly best according to the method for the described production titanium dioxide of claim 1.
4, according to the method for the described production titanium dioxide of claim 1, it is characterized in that temperature that acid decomposes with 180-230 ℃ for well.
5, according to the method for the described production titanium dioxide of claim 1, the composition that it is characterized in that titanium sulfate solution is TiO
2The 50-70 grams per liter, Al
2O
3The 25-30 grams per liter, the MgO10-20 grams per liter.
6, according to claim 5, it is characterized in that the titanium sulfate solution that is used for hydrolysis contains the Ti(3 valency) the 2-3 grams per liter, sour ratio is about 4.0, and adds crystal seed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86108511 CN1006635B (en) | 1986-12-10 | 1986-12-10 | Method for preparing titanium white power using iron-smelting blast-furnace slag containing titanium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86108511 CN1006635B (en) | 1986-12-10 | 1986-12-10 | Method for preparing titanium white power using iron-smelting blast-furnace slag containing titanium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86108511A CN86108511A (en) | 1988-06-22 |
| CN1006635B true CN1006635B (en) | 1990-01-31 |
Family
ID=4803955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86108511 Expired CN1006635B (en) | 1986-12-10 | 1986-12-10 | Method for preparing titanium white power using iron-smelting blast-furnace slag containing titanium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006635B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029149B (en) * | 2010-11-24 | 2013-01-23 | 东北大学 | Method for preparing perovskite-diopside composite material and snow melt agent from titanium-containing blast furnace slag |
| US10287176B2 (en) | 2014-07-08 | 2019-05-14 | Avertana Limited | Extraction of products from titanium-bearing minerals |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7462337B2 (en) | 2000-12-12 | 2008-12-09 | Highveld Steel And Vanadium Corporation Limited | Recovery of titanium dioxide from titanium oxide bearing materials like steelmaking slags |
| CN100341634C (en) * | 2005-08-02 | 2007-10-10 | 四川大学 | Production of titanium-enriched material by titanium-contained blast furnace slag blast furnace slag |
| CN100345915C (en) * | 2005-09-27 | 2007-10-31 | 四川大学 | Method for preparing pigment-level titanium powder and coarse titanium white from blast slag containing titanium |
| CN100462306C (en) * | 2005-12-05 | 2009-02-18 | 西昌新钢业有限责任公司 | Method for producing titanium product from titanic slag for titanium white waste sulfuric acid treatment |
| CN101994012B (en) * | 2010-12-07 | 2012-08-29 | 东北大学 | Method for producing titanium dioxide by using titanium-containing blast furnace slag |
| CN103342385B (en) * | 2013-06-27 | 2014-12-17 | 西安建筑科技大学 | Method for preparing nano titanium dioxide by titaniferous tailings after beneficiating iron |
| CN103614563B (en) * | 2013-12-09 | 2015-09-16 | 湖南稀土金属材料研究院 | The method of synthetical recovery process waste red mud residues and titanium white waste liquid |
| CN103952567B (en) * | 2014-05-13 | 2016-05-25 | 李翔 | Utilize multistage acidleach to get the method that reclaims titanium, silicon, aluminium, calcium and magnesium from titanium-containing blast furnace slag |
| CN107531507A (en) * | 2015-01-13 | 2018-01-02 | 艾绿卡资源有限公司 | The ore dressing of titanium-containing materials |
| CN104828861B (en) * | 2015-05-13 | 2016-11-09 | 攀枝花学院 | A kind of industrial metatitanic acid grading produces the method for pigment titanium white |
| CN107267766B (en) * | 2017-08-28 | 2019-02-26 | 四川大学 | A method of Selective Separation vanadium, titanium, iron from modified vanadium slag |
| CN107935033B (en) * | 2017-10-24 | 2019-09-27 | 钢研晟华科技股份有限公司 | A kind of technique that titanium-containing blast furnace slag prepares titanium white raw material |
| CN108358237A (en) * | 2018-04-20 | 2018-08-03 | 四川星明能源环保科技有限公司 | A kind of titanium dioxide and the titanium white production method based on titanium-containing blast furnace slag |
| CN108408767A (en) * | 2018-04-20 | 2018-08-17 | 四川星明能源环保科技有限公司 | A kind of titanium dioxide and the method using titanium-containing blast furnace slag production titanium dioxide |
| CN110498436B (en) * | 2019-09-11 | 2020-10-09 | 中南大学 | Method for preparing titanium dioxide powder and calcium fluoride from perovskite |
-
1986
- 1986-12-10 CN CN 86108511 patent/CN1006635B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029149B (en) * | 2010-11-24 | 2013-01-23 | 东北大学 | Method for preparing perovskite-diopside composite material and snow melt agent from titanium-containing blast furnace slag |
| US10287176B2 (en) | 2014-07-08 | 2019-05-14 | Avertana Limited | Extraction of products from titanium-bearing minerals |
| US10294117B2 (en) | 2014-07-08 | 2019-05-21 | Avertana Limited | Extraction of products from titanium-bearing minerals |
| US10407316B2 (en) | 2014-07-08 | 2019-09-10 | Avertana Limited | Extraction of products from titanium-bearing minerals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN86108511A (en) | 1988-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1006635B (en) | Method for preparing titanium white power using iron-smelting blast-furnace slag containing titanium | |
| CN103130279B (en) | A kind of method of chlorination production high purity vanadic anhydride | |
| CN101967563B (en) | Method for wet-process vanadium extraction by using vanadium- and titanium-containing converter slag | |
| CN102154531B (en) | Method for producing artificial rutile from titanium-containing blast furnace slags | |
| CN103667728B (en) | The method of scandium is reclaimed from red mud slag | |
| CN1069110C (en) | Technology for comprehensive utilization of V-Ti magnetite | |
| CN102787194B (en) | Method for preparing titanium-rich material by directly reducing molten slag from vanadium-titanium-ferrum concentrate | |
| CN102745743B (en) | Method for preparing artificial rutile by titanium slags | |
| CN101812595A (en) | Method for producing artificial rutile from titanium slag | |
| CN101555036A (en) | Method for extracting TiO 2 and SiO 2 in blast furnace slag | |
| CN103343174A (en) | Method for separating titanium, iron, vanadium and calcium from mixed titaniferous slag | |
| CN108149015A (en) | A kind of method of valuable constituent element in oxygen-enriched Selectively leaching extraction vanadium titano-magnetite | |
| CN104294061A (en) | Technology for extraction of vanadium pentoxide from stone coal mine | |
| CN107416903A (en) | A kind of method for handling spent vanadium catalyst | |
| CN112662896A (en) | Method for preparing titanium-rich material from titanium ore | |
| CN109553382A (en) | A kind of quick, high efficiency iron-removal and whitening method of low grade material | |
| CN104313338A (en) | Titaniferous metallurgical residue treatment method | |
| WO2019137542A1 (en) | Method for selectively leaching and upgrading high-titanium slag | |
| CN1028300C (en) | Method for extracting V2O5 from vanadium slag | |
| CN114368781B (en) | Method for effectively recycling titanium in titanium-containing slag and improving value of byproducts | |
| CN101871045B (en) | Method for producing zinc by utilizing sulphate process titanium dioxide waste acid | |
| CN102676826A (en) | Method for extracting lead from waste CRT (Cathode Ray Tube) cone glass | |
| CN100462306C (en) | Method for producing titanium product from titanic slag for titanium white waste sulfuric acid treatment | |
| CN1034493C (en) | Method for prodn. of titanium dioxide | |
| CN116287737A (en) | Method for realizing cyclic utilization of titanium, vanadium, iron, calcium, silicon, sulfur and nitrogen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |