CN103146915A - Titaniferous red mud compound binder and preparation method thereof - Google Patents
Titaniferous red mud compound binder and preparation method thereof Download PDFInfo
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- CN103146915A CN103146915A CN2013100663679A CN201310066367A CN103146915A CN 103146915 A CN103146915 A CN 103146915A CN 2013100663679 A CN2013100663679 A CN 2013100663679A CN 201310066367 A CN201310066367 A CN 201310066367A CN 103146915 A CN103146915 A CN 103146915A
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- Prior art keywords
- red mud
- titaniferous
- converter
- binding agent
- iron
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Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 70
- 150000001875 compounds Chemical class 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims description 33
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004131 Bayer process Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 26
- 238000001035 drying Methods 0.000 abstract description 16
- 229910052742 iron Inorganic materials 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 9
- 239000008188 pellet Substances 0.000 abstract description 9
- 239000010936 titanium Substances 0.000 abstract description 9
- 229910052719 titanium Inorganic materials 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000012141 concentrate Substances 0.000 abstract 3
- 238000005453 pelletization Methods 0.000 description 13
- 239000000292 calcium oxide Substances 0.000 description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 10
- 238000013467 fragmentation Methods 0.000 description 10
- 238000006062 fragmentation reaction Methods 0.000 description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 235000010755 mineral Nutrition 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000000440 bentonite Substances 0.000 description 4
- 229910000278 bentonite Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical group O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 flux Substances 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a titaniferous red mud compound binder and a preparation method thereof. The titaniferous red mud compound binder is prepared by selecting, drying, crushing and uniformly mixing waste red mud of aluminium manufactures and fine ash of converters of iron and steel plants according to a ratio of (65%-95%):(5%-35%). The prepared titaniferous red mud compound binder is mainly used for granulating titanium and iron-containing concentrate, has the characteristics of good binding effect, low price, high iron and titanium contents and the like, and can partially or completely be used for substituting for conventional organic binders and inorganic binders to produce titanium and iron-containing concentrate pellets. Compared with the organic binder which is used for completely producing the titanium and iron-containing concentrate pellets, the compound binder is greatly lowered in production cost, and iron and titanium elements in the red mud and fine ash of the converters can be effectively recycled. Compared with the inorganic binder which is used in the whole process, the compound binder is improved in pellet grade.
Description
Technical field
The present invention relates to chemical industry, metallurgy industry technical field, particularly, the present invention relates to a kind of titaniferous red mud compound binding agent and preparation method thereof.
Background technology
Along with the development of Iron And Steel Industry, people can process by molten division technique and contain the ferrotianium fine powder, thereby make titanium, ferro element in the ore deposit all obtain efficient recovery.The currently used ferrotianium fine powder treatment process that contains, its first working procedure is generally batch mixing, is about to contain ferrotianium fine powder, flux, binding agent etc. and mixes, and binding agent is as the indispensable important component part of this technique, should have balling-up preferably, so that the pelletizing of making has better performance.At present, the binding agent that has used mainly contains mineral binder bond, as wilkinite, water glass, slaked lime, cement, clay etc.; Organic binder bond, as humic acids, carboxymethyl cellulose etc., these technology respectively have advantage, but deficiency is arranged.
Mineral binder bond is mainly take wilkinite as main, although wilkinite is cheap, bentonitic composition is mainly SiO
2And Al
2O
3, produce pelletizing with wilkinite as binding agent, can produce the reduction of the total iron TFe of finished pellet content, flux with addition of measuring degradation detrimentally affect under increase, quantity of slag increase, the decline of the useful element rate of recovery, production energy consumption increase and productivity.Although organic binder bond exerts an influence hardly to final pellet quality, because it is expensive (it is even more that price is generally ten times of wilkinite price), manufacturer is hung back.
All fully reclaim in order to ensure the titanium, the iron that contain in the ferrotianium fine powder, manufacturer often all selects organic binder bond, and reach the equal quality green-ball, organic binder bond with addition of the amount often many than mineral binder bond, sometimes or even mineral binder bond with addition of the amount 2～3 times, this has caused very large pressure to production cost, also causes production capacity to reduce simultaneously.
Therefore, need to propose a kind of more perfect binding agent and preparation method thereof.
Summary of the invention
The object of the invention is to, a kind of titaniferous red mud compound binding agent and preparation method thereof is provided, the bond effect of this binding agent is good, low price, iron content, titaniferous are high, and the pelletizing that is mainly used in containing the ferrotianium fine powder is used.
In order to achieve the above object, the present invention has adopted following technical scheme:
The present invention prepares vanadium titano-magnetite pelletizing titaniferous red mud compound binding agent by red mud, the thin ash of converter are mixed, and the preparation method of this binding agent comprises:
1) red mud is dried, break process, obtain doing red mud powder;
2) to the thin ash of converter dry, break process, obtain doing carefully ash of converter;
3) (percentage ratio in the present invention except specified otherwise, all refers to weight percent) by weight percentage, will do the thin ash of red mud powder and dried converter and mix in 65%～95%:5%～35% ratio, obtain the red mud compound binding agent.
Wherein, red mud described in step 1) is a kind of of aluminium manufacturer's waste of discharging when adopting alumina producing Bayer process, and this red mud contains and also contains abundant titanium elements when enriching ferro element, and its granularity is thinner, and property is sticking, good water absorption.The present invention select iron-holder and titaniferous amount all higher Bayer process red mud as one of component, its Fe
2O
3, TiO
2, SiO
2And Al
2O
3Content is respectively 30%～60%, 6%～8%, 2～20% and 10～20%.Due to the adhesive property of selected red mud compare with wilkinite slightly poor, therefore by satisfying production requirement with addition of the thin ash of a certain amount of converter.The main component of the thin ash of converter is ferric oxide and calcium oxide, is all the molten needed material of division technique, not only can not affect subsequent production, is conducive on the contrary to reduce the consumption of the flux such as lime.
Drying and processing in described step 1) is: red mud carries out airing in the airing field, and the moisture in red mud is reduced to 10%～20% by original 30%～40%, obtains half-dried red mud; Adopt general dryer to dry half-dried red mud again, obtain the dried red mud of moisture content≤2%.Also can adopt other drying modes to process.
Break process in described step 1) is: dried red mud adopts ball mill or Raymond mill to carry out fragmentation, and perhaps other modes are carried out fragmentation to dried red mud, and those skilled in the art can select flexibly according to practical situation.
After dried red mud fragmentation, obtain doing red mud powder in described step 1), do the granularity of red mud powder less than 200 order part 〉=80%.
Wherein, step 2) second that in, the thin ash of converter used is Laigang converter dust-removing ash is grey, and take ferric oxide and lime as main, its TFe and CaO content are 50%～55% and 4%～10%.For the ease of environmental friendliness, the processing of need fetching water when the thin ash of converter effluxes from converter system, the thin grey moisture content of converter of fetching water after processing is generally 8%～16%.
Described step 2) drying and processing in is: the thin ash of moisture 8%～16% converter adopts general dryer to dry, and the converter that obtains moisture content≤2% is carefully grey.
Described step 2) break process in is: the thin ash of the converter of moisture content≤2% adopts ball mill or Raymond mill to carry out fragmentation, and perhaps other modes are carried out fragmentation to red mud, and those skilled in the art can select flexibly according to practical situation.
Described step 2) after the thin grey fragmentation of converter, obtain doing carefully ash of converter in, do the granularity of the thin ash of converter less than 200 order part 〉=80%.
Wherein, in described step 3), the proportioning of doing the thin ash of red mud powder and dried converter is 65%～95%:5%～35%, simultaneously can according to the concrete proterties that contains the ferrotianium fine powder with addition of, if containing the ballability of ferrotianium fine powder still can, doing the thin ash of converter can join less, on the contrary do the thin grey polygamy of converter some.
In described step 3), do the thin ash of red mud powder and dried converter and adopt the dry type mixer to mix, those skilled in the art can select flexibly according to practical situation.
In described step 3), the content of the main component of the red mud compound binding agent for preparing is: TFe 22.45%～46.55%, TiO
23.9%～7.6%, SiO
21.3%～19%, Al
2O
36.5%～19%, CaO 0.2%～3.5%.
Titaniferous red mud compound binding agent of the present invention is raw materials used cheap, production technique is simple, the price of titaniferous red mud compound binding agent is even lower than bentonitic price, after containing ferrotianium fine powder pelletizing, when ensureing pelletizing quality, the effective element rate of recovery and productivity, can significantly reduce the operation production cost.
The present invention selects the waste red mud of aluminium manufacturer and the thin ash of iron dust containing converter of Steel Plant to produce titaniferous red mud compound binding agent, have the characteristics such as bond effect is good, low price, iron content, titaniferous height, can partly or entirely replace used organic binder bond, mineral binder bond to be used for containing the production of ferrotianium fine powder pelletizing.With respect to all containing ferrotianium fine powder pelletizing with organic binder bond production, production cost declines to a great extent, and iron, titanium elements in red mud and the thin ash of converter obtain efficient recovery.With respect to all using mineral binder bond, the pelletizing grade improves.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
The present invention is further detailed explanation with embodiment for the below.
Embodiment 1
Composition is: TFe 21.54%, Al
2O
318.56%, SiO
28.97%, TiO
27.6% red mud is dried (200 ℃) with drying grate, and ball mill is broken, obtains granularity less than the dried red mud powder of 200 order parts 80%; Composition is the thin ash of the converter of TFe 51.41%, CaO 4.81% with the chain drying machine drying (200 ℃) of combing, and after the ball mill fragmentation, obtains granularity less than the dried converter of 200 order parts 80% ash carefully; Do red mud powder, do the thin ash of converter according to the mass percent 65:35 mixing of preparing burden, gained titaniferous red mud compound binding agent composition is TFe 31.99%, Al
2O
312.06%, SiO
25.83%, TiO
24.94%, CaO 1.68%.After this titaniferous red mud compound binding agent is used for containing ferrotianium fine powder pellet formation, compared to calcium-base bentonite, calculate by daily proportioning 3%, pelletizing TFe improves 1.54%, TiO
2Improve 0.15%; Compared to organic binder bond, titaniferous red mud compound binding agent price is about 10% of organic binder bond price, and consumption is about 50% of organic binder bond, remarkable in economical benefits.
Embodiment 2
Composition is: TFe 40.76%, Al
2O
311.48%, SiO
214.88%, TiO
26.23% red mud is dried (200 ℃) with drying grate, and ball mill is broken, obtains granularity less than the dried red mud powder of 200 order parts 80%; Composition is the thin ash of the converter of TFe 51.41%, CaO 4.81% with the chain drying machine drying (200 ℃) of combing, and after the ball mill fragmentation, obtains granularity less than the dried converter of 200 order parts 80% ash carefully; Do red mud powder, do the thin ash of converter according to the mass percent 85:15 mixing of preparing burden, gained titaniferous red mud compound binding agent composition is TFe 42.35%, Al
2O
39.76%, SiO
212.65%, TiO
25.29%, CaO 0.72%.After this titaniferous red mud compound binding agent is used for containing ferrotianium fine powder pellet formation, compared to calcium-base bentonite, calculate by daily proportioning 3%, pelletizing TFe improves 2.03%, TiO
2Improve 0.16%, effect is remarkable; Compared to organic binder bond, titaniferous red mud compound binding agent price is about 12% of organic binder bond price, and consumption is about 50% of organic binder bond, remarkable in economical benefits.
Example 3
Composition is: TFe 40.76%, Al
2O
311.48%, SiO
214.88%, TiO
26.23% red mud is dried (200 ℃) with drying grate, and ball mill is broken, obtains granularity less than the dried red mud powder of 200 order parts 80%; Composition is the thin ash of the converter of TFe 51.41%, CaO 4.81% with the chain drying machine drying (200 ℃) of combing, and after the ball mill fragmentation, obtains granularity less than the dried converter of 200 order parts 80% ash carefully; Do red mud powder, do the thin ash of converter according to the mass percent 95:5 mixing of preparing burden, gained titaniferous red mud compound binding agent composition is TFe 41.29%, Al
2O
310.91%, SiO
214.14%, TiO
25.92%, CaO 0.24%.After this titaniferous red mud compound binding agent is used for containing ferrotianium fine powder pellet formation, compared to calcium-base bentonite, calculate by daily proportioning 3%, pelletizing TFe improves 1.98%, TiO
2Improve 0.18%, effect is remarkable; Compared to organic binder bond, titaniferous red mud compound binding agent price is about 9% of organic binder bond price, and consumption is about 50% of organic binder bond, remarkable in economical benefits.
Example 4
Composition is: TFe 35.43%, Al
2O
316.67%, SiO
218.92%, TiO
27.53% red mud is dried (200 ℃) with drying grate, and ball mill is broken, obtains granularity less than the dried red mud powder of 200 order parts 80%; Composition is the thin ash of the converter of TFe 54.82%, CaO 9.62% with the chain drying machine drying (200 ℃) of combing, and after the ball mill fragmentation, obtains granularity less than the dried converter of 200 order parts 80% ash carefully; Do red mud powder, do the thin ash of converter according to the mass percent 85:15 mixing of preparing burden, gained titaniferous red mud compound binding agent composition is TFe 38.34%, Al
2O
314.17%, SiO
216.08%, TiO
26.40%, CaO 1.44%.After this titaniferous red mud compound binding agent is used for containing ferrotianium fine powder pellet formation, compared to calcium-base bentonite, calculate by daily proportioning 3%, pelletizing TFe improves 1.84%, TiO
2Improve 0.19%; Compared to organic binder bond, titaniferous red mud compound binding agent price is about 9% of organic binder bond price, and consumption is about 50% of organic binder bond, remarkable in economical benefits.
Claims (5)
1. a titaniferous red mud compound binding agent, is characterized in that, by weight percentage, and the consisting of of described compound binding agent: do red mud powder 65～95%, do the thin ash 5～35% of converter;
Described dried red mud powder is made by Bayer process red mud, and the component concentration in Bayer process red mud is Fe
2O
3: 30～60%, TiO
2: 6～8%, SiO
2: 2～20% and Al
2O
3: 10～20%;
The thin ash of described dried converter is made by the thin ash of converter, in the thin ash of converter TFe content be 50～55% and CaO content be 4～10%.
2. titaniferous red mud compound binding agent according to claim 1, is characterized in that, by weight percentage, described dried red mud powder granularity is less than 200 purpose part 〉=80%, and water content≤2%.
3. titaniferous red mud compound binding agent according to claim 1, is characterized in that, by weight percentage, the thin grey granularity of described dried converter is less than 200 purpose part 〉=80%, and water content≤2%.
4. titaniferous red mud compound binding agent according to claim 1, is characterized in that, by weight percentage, the content of described compound binding agent main component is: TFe 22.45%～46.55%, TiO
23.9%～7.6%, SiO
21.3%～19%, Al
2O
36.5%～19%, CaO 0.2%～3.5%.
5. a method for preparing arbitrary described titaniferous red mud compound binding agent in claim 1～4, is characterized in that, described method comprises:
1) red mud is dried, break process, obtain doing red mud powder;
2) the thin ash of converter is dried, break process, obtain doing carefully ash of converter;
3) will do the thin ash of red mud powder and dried converter and mix in 65%～95%:5%～35% ratio, obtain the red mud compound binding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066367.9A CN103146915B (en) | 2013-03-01 | 2013-03-01 | Titaniferous red mud compound binder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066367.9A CN103146915B (en) | 2013-03-01 | 2013-03-01 | Titaniferous red mud compound binder and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103146915A true CN103146915A (en) | 2013-06-12 |
| CN103146915B CN103146915B (en) | 2014-10-08 |
Family
ID=48545229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310066367.9A Expired - Fee Related CN103146915B (en) | 2013-03-01 | 2013-03-01 | Titaniferous red mud compound binder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103146915B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506273A (en) * | 2014-09-26 | 2016-04-20 | 鞍钢股份有限公司 | Method for adding red mud into pellets |
| CN106435169A (en) * | 2016-12-21 | 2017-02-22 | 安徽中创电子信息材料有限公司 | Method for preparing titanium concentrate pelletizing material |
| CN106544499A (en) * | 2015-09-17 | 2017-03-29 | 攀钢冶金材料有限责任公司 | A kind of composite assistant and its preparation method and application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956066A (en) * | 2010-10-03 | 2011-01-26 | 马鞍山市金鑫建材有限公司 | Metallurgical pellet compound binding agent |
| CN102851491A (en) * | 2012-08-06 | 2013-01-02 | 莱芜钢铁集团有限公司 | Red mud composite binder for oxidized pellets |
-
2013
- 2013-03-01 CN CN201310066367.9A patent/CN103146915B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956066A (en) * | 2010-10-03 | 2011-01-26 | 马鞍山市金鑫建材有限公司 | Metallurgical pellet compound binding agent |
| CN102851491A (en) * | 2012-08-06 | 2013-01-02 | 莱芜钢铁集团有限公司 | Red mud composite binder for oxidized pellets |
Non-Patent Citations (1)
| Title |
|---|
| 李建云: "降低球团膨润土用量的实验室研究", 《硅谷》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506273A (en) * | 2014-09-26 | 2016-04-20 | 鞍钢股份有限公司 | Method for adding red mud into pellets |
| CN106544499A (en) * | 2015-09-17 | 2017-03-29 | 攀钢冶金材料有限责任公司 | A kind of composite assistant and its preparation method and application |
| CN106544499B (en) * | 2015-09-17 | 2018-07-24 | 攀钢冶金材料有限责任公司 | A kind of composite assistant and its preparation method and application |
| CN106435169A (en) * | 2016-12-21 | 2017-02-22 | 安徽中创电子信息材料有限公司 | Method for preparing titanium concentrate pelletizing material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103146915B (en) | 2014-10-08 |
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Granted publication date: 20141008 |