CN109694206B - Dechlorination and decarbonization method for titanium extraction tailings - Google Patents
Dechlorination and decarbonization method for titanium extraction tailings Download PDFInfo
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- CN109694206B CN109694206B CN201910188485.4A CN201910188485A CN109694206B CN 109694206 B CN109694206 B CN 109694206B CN 201910188485 A CN201910188485 A CN 201910188485A CN 109694206 B CN109694206 B CN 109694206B
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- 239000010936 titanium Substances 0.000 title claims abstract description 82
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 81
- 238000000605 extraction Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000006298 dechlorination reaction Methods 0.000 title claims abstract description 11
- 238000005262 decarbonization Methods 0.000 title claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 29
- 239000003245 coal Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 239000000460 chlorine Substances 0.000 claims abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 229910009973 Ti2O3 Inorganic materials 0.000 claims description 3
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 238000001879 gelation Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000009614 chemical analysis method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention provides a dechlorination and decarbonization method for titanium extraction tailings, which comprises the following steps: mixing titanium extraction tailings and carbon-containing materials, and then granulating to obtain granules; and roasting the granules to remove carbon and chlorine in the titanium extraction tailings. The method provided by the invention has the advantages of simple process, high yield and low cost, can fully utilize carbon in carbon-containing materials (such as coal gangue) to reduce energy consumption, can ensure that the roasted titanium extraction tailings have good pozzolanic effect and gelation activity after the carbon-containing materials are added, can improve the gelation activity of the roasted titanium extraction tailings, and is more favorable for being used as an admixture of cement or concrete.
Description
Technical Field
The invention relates to the technical field of titanium extraction tailings, in particular to a dechlorination and decarbonization method of titanium extraction tailings.
Background
Extracting useful component TiO from slag of steel-climbing blast furnace by high-temperature carbonization and low-temperature chlorination2Then generating a large amount of tailings, wherein the solid waste contains 2-4% of Cl-And 6-10% of residual carbon, the tailingsIf not treated, the waste water can not be used in other industries and can not be directly discharged, and the waste water has great influence on the environment.
How to treat the titanium extraction tailings becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the present invention aims to provide a dechlorination and decarbonization method for titanium extraction tailings, wherein the titanium extraction tailings treated by the method provided by the present invention can be used as an admixture for cement and concrete, thereby successfully solving the problems of secondary utilization and discharge of the titanium extraction tailings.
The invention provides a dechlorination and decarbonization method for titanium extraction tailings, which comprises the following steps:
mixing titanium extraction tailings and carbon-containing materials, and then granulating to obtain granules;
and roasting the granules to remove carbon and chlorine in the titanium extraction tailings.
In the invention, the titanium extraction tailings are obtained by extracting a useful component TiO from blast furnace slag through high-temperature carbonization and low-temperature chlorination treatment2Then, a large amount of tailings is generated, and the titanium extraction tailings contain 2-4 wt% of Cl-and 6-10 wt% of residual carbon.
In the invention, the titanium extraction tailings preferably comprise, by weight:
20-30 parts of CaO;
5-10 parts of MgO;
0.5-1 part of MnO;
20-30 parts of SiO2；
3-8 parts of TiO2；
10-15 parts of Al2O3；
0.5 to 1.5 parts of SO3；
Less than 0.1 part of Ti2O3；
Less than 0.1 part of TiO;
1-5 parts of TiC;
0.5-1.5 parts of TiN;
0.3-0.8 parts of fluoride;
1-5 parts of chloride ions.
In the present invention, the weight part of CaO is preferably 22 to 28 parts, and more preferably 24 to 26 parts.
In the present invention, the weight part of the MgO is preferably 6 to 9 parts, and more preferably 7 to 8 parts.
In the present invention, the MnO is preferably 0.6 to 0.9 part by weight, and more preferably 0.7 to 0.8 part by weight.
In the present invention, the SiO2The weight part of (b) is preferably 22 to 28 parts, and more preferably 24 to 26 parts.
In the present invention, the TiO is2The weight part of (b) is preferably 4 to 7 parts, more preferably 5 to 6 parts.
In the present invention, the Al2O3The weight part of (b) is preferably 11 to 14 parts, and more preferably 12 to 13 parts.
In the present invention, the SO3The weight part of (b) is preferably 0.8 to 1.2 parts, more preferably 1 part.
In the present invention, the Ti is2O3The weight part of (b) is preferably 0.01 to 0.09 part, more preferably 0.03 to 0.07 part, and most preferably 0.05 to 0.06 part.
In the present invention, the weight part of the TiO is preferably 0.01 to 0.09 part, more preferably 0.03 to 0.07 part, and most preferably 0.05 to 0.06 part.
In the invention, the weight part of TiC is preferably 2-4 parts, and more preferably 3 parts.
In the present invention, the weight part of TiN is preferably 2 to 4 parts, and more preferably 3 parts.
In the present invention, the weight part of the fluoride is preferably 0.4 to 0.7 part, and more preferably 0.5 to 0.6 part.
In the present invention, the weight part of the chloride ion is preferably 2 to 4 parts, and more preferably 3 parts.
In the invention, the carbon-containing material is preferably one or more of coal gangue, coke powder and coal powder. The invention can reduce the fuel consumption of roasting by adopting the carbon-containing material and can also increase the activity of titanium extraction tailings after roasting.
In the invention, the mass of the carbon-containing material is preferably 5-50% of the mass of the titanium extraction tailings, more preferably 10-45%, more preferably 15-40%, more preferably 20-35%, and most preferably 25-30%. In the invention, when the carbon-containing material is coal gangue, the mass of the coal gangue is preferably 10-50% of the mass of the titanium extraction tailings, more preferably 20-40%, and most preferably 25-35%; when the carbon-containing material is coke powder, the mass of the coke powder is preferably 5-8% of that of the titanium extraction tailings, and more preferably 6-7%; when the carbonaceous material is pulverized coal, the mass of the pulverized coal is preferably 5-10% of the mass of the titanium extraction tailings, more preferably 6-9%, and most preferably 7-8%.
In the present invention, the granulation method is preferably disk granulation. In the invention, the grain diameter of the material particles is preferably 5-15 mm, more preferably 8-12 mm, and most preferably 10 mm. The method preferably controls the particle size of the material obtained by granulation to be 5-15 mm, and can better perform dechlorination and decarbonization on the titanium extraction tailings within the particle size range.
In the present invention, the calcination is preferably carried out in a shaft kiln. In the invention, the roasting temperature is preferably 900-1150 ℃, more preferably 950-1100 ℃, and most preferably 1000-1050 ℃; the roasting time is preferably 2-3 hours. By controlling the roasting temperature and the roasting time, the Cl & lt- & gt in the titanium extraction tailings can be treated to be less than 0.06 wt% and the carbon can be treated to be less than 0.8 wt%.
The invention only provides a small amount of fuel during roasting, and can fully utilize the heat generated by carbon elements in the titanium extraction tailings and the carbon-containing materials to perform high-temperature dechlorination, thereby greatly saving energy and reducing the roasting cost.
The method provided by the invention has the advantages of simple process, high yield and low cost, can fully utilize carbon in carbon-containing materials (such as coal gangue) to reduce energy consumption, can ensure that the roasted titanium extraction tailings have good pozzolanic effect and gelation activity after the carbon-containing materials are added, can improve the gelation activity of the roasted titanium extraction tailings, and is more favorable for being used as an admixture of cement or concrete.
According to the invention, the titanium extraction tailings and part of the carbon-containing additive components are mixed and granulated, and then are roasted by the shaft kiln, so that the heat generated by the carbon elements in the titanium extraction tailings and the additive can be fully utilized to perform high-temperature dechlorination, the fuel consumption cost is reduced, and the Cl & lt- & gt in the titanium extraction tailings is treated to be below 0.06% and the carbon is treated to be below 0.8%. The treated titanium extraction tailings can be used as an admixture of cement and concrete, so that the problems of secondary utilization and discharge of the titanium extraction tailings are successfully solved, zero discharge is realized, the pollution to the environment is greatly reduced, and better economic benefit and social benefit are achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other examples, which may be modified or appreciated by those of ordinary skill in the art based on the examples given herein, are intended to be within the scope of the present invention.
The raw materials used in the following examples of the present invention are all commercially available products.
The titanium extraction tailings used in the following embodiments of the invention comprise the following components: 26.5 wt% CaO; 8.78 wt% MgO; 0.71 wt% MnO; 25.3 wt% SiO2(ii) a 5.98 wt% TiO2(ii) a 13.0 wt% of Al2O3(ii) a 0.98 wt% SO3(ii) a Less than 0.1 wt% of Ti2O3(ii) a Less than 0.1 wt% TiO; 2.75 wt% TiC; 0.98 wt% TiN; 0.5 wt% fluoride; 3.28 wt% chloride ion; wherein the content of residual carbon is 6-10 wt%.
Example 1
Mixing titanium extraction tailings and coal gangue powder with the mass of 50% of the titanium extraction tailings, and granulating by adopting a disc to obtain material particles with the particle size of 5-15 mm;
and roasting the material particles by adopting a shaft kiln, controlling the roasting temperature to be 900-1000 ℃, and roasting for 3 hours to obtain the treated titanium extraction tailings.
According to GB/T16555-2017 chemical analysis method for refractory materials containing carbon, silicon carbide and nitride, the Cl-mass content in the treated titanium extraction tailings is 0.05-0.06%, and the carbon content is 0.3-0.5%.
The activity index of the treated titanium tailings obtained in example 1 of the present invention was measured to be 75% for 28 days according to the criteria of JC/T486-2015 composite Admixture for concrete.
Example 2
Mixing titanium extraction tailings and coal gangue powder with the mass of 30% of the titanium extraction tailings, and granulating by adopting a disc to obtain material particles with the particle size of 5-15 mm;
and roasting the material particles by adopting a shaft kiln, controlling the roasting temperature to be 900-1100 ℃ and the roasting time to be 2.5 hours to obtain the treated titanium extraction tailings.
The method of example 1 was followed, and the treated titanium extraction tailings had a Cl-content of 0.04 to 0.06% by mass and a carbonaceous content of 0.2 to 0.4% by mass.
The activity index of the treated titanium extraction tailings obtained in example 2 of the present invention was measured to be 74% at 28 days according to the method described in example 1.
Example 3
Mixing titanium extraction tailings and coal gangue powder with the mass of 10% of the titanium extraction tailings, and granulating by adopting a disc to obtain material particles with the particle size of 5-15 mm;
and roasting the material particles by adopting a shaft kiln, controlling the roasting temperature to be 950-1150 ℃ and the roasting time to be 2 hours to obtain the treated titanium extraction tailings.
The method of example 1 was followed, and the treated titanium extraction tailings had a Cl-content of 0.04 to 0.06% by mass and a carbonaceous content of 0.1 to 0.3% by mass.
The activity index of the treated titanium extraction tailings obtained in example 3 of the present invention was measured to be 73% at 28 days according to the method described in example 1.
Example 4
Mixing titanium extraction tailings and coke powder accounting for 5% of the titanium extraction tailings by mass, and granulating by using a disc to obtain material particles with the particle size of 5-15 mm;
and roasting the material particles by adopting a shaft kiln, controlling the roasting temperature to be 950-1150 ℃ and the roasting time to be 2 hours to obtain the treated titanium extraction tailings.
The method of example 1 was followed, and the treated titanium extraction tailings had a Cl-content of 0.03 to 0.05% by mass and a carbonaceous content of 0.2 to 0.4% by mass.
The activity index of the treated titanium extraction tailings obtained in example 4 of the present invention was measured to be 70% at 28 days according to the method described in example 1.
Example 5
Mixing titanium extraction tailings and coal powder with the mass of 8% of the titanium extraction tailings, and granulating by adopting a disc to obtain material particles with the particle size of 5-15 mm;
and roasting the material particles by adopting a shaft kiln, controlling the roasting temperature to be 950-1150 ℃ and the roasting time to be 2 hours to obtain the treated titanium extraction tailings.
The method of example 1 is used to determine that the treated titanium extraction tailings contain 0.05 to 0.06 mass percent of Cl < - > and 0.1 to 0.3 mass percent of carbon.
The activity index of the treated titanium extraction tailings obtained in example 5 of the present invention was measured to be 71% at 28 days according to the method described in example 1.
Comparative example 1
The titanium extraction tailings are treated according to the method in the embodiment 1, and the difference from the embodiment 1 is that the roasting temperature is 750-880 ℃, and the roasting time is 5 hours.
The method of example 1 was followed to determine that the treated titanium extraction tailings contained 0.15 to 0.25% by mass of Cl-and 0.5 to 0.8% by mass of carbon.
Comparative example 2
The titanium extraction tailings were treated in the same manner as in example 1, except that no gangue powder was added to the titanium extraction tailings.
The method of example 1 was followed to determine the Cl-mass content of the treated titanium extraction tailings. 0.3 to 0.5% and a carbonaceous content of 0.4 to 0.8%.
The activity index of the treated titanium extraction tailings obtained in comparative example 2 of the present invention was measured to be 62% at 28 days according to the method described in example 1.
From the above embodiments, the present invention provides a dechlorination and decarbonization method for titanium extraction tailings, which comprises: mixing titanium extraction tailings and carbon-containing materials, and then granulating to obtain granules; and roasting the granules to remove carbon and chlorine in the titanium extraction tailings. The method provided by the invention has the advantages of simple process, high yield and low cost, can fully utilize carbon in carbon-containing materials (such as coal gangue) to reduce energy consumption, can ensure that the roasted titanium extraction tailings have good pozzolanic effect and gelation activity after the carbon-containing materials are added, can improve the gelation activity of the roasted titanium extraction tailings, and is more favorable for being used as an admixture of cement or concrete.
While only the preferred embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A dechlorination and decarbonization method for titanium extraction tailings comprises the following steps:
mixing titanium extraction tailings and carbon-containing materials, and then granulating to obtain granules;
roasting the granules to remove carbon and chlorine in the titanium extraction tailings;
the roasting temperature is 900-1150 ℃;
the mass of the carbon-containing material is 5-50% of that of the titanium extraction tailings;
the roasting time is 2-3 hours.
2. The method according to claim 1, characterized in that the mass content of chloride ions in the titanium extraction tailings is 2-4%;
the mass content of carbon element in the titanium extraction tailings is 6-10%.
3. The method according to claim 1, wherein the titanium extraction tailings comprise, in parts by weight:
20-30 parts of CaO;
5-10 parts of MgO;
0.5-1 part of MnO;
20-30 parts of SiO2；
3-8 parts ofTiO2；
10-15 parts of Al2O3；
0.5 to 1.5 parts of SO3；
Less than 0.1 part of Ti2O3；
Less than 0.1 part of TiO;
1-5 parts of TiC;
0.5-1.5 parts of TiN;
0.3-0.8 parts of fluoride;
1-5 parts of chloride ions.
4. The method according to claim 1, wherein the carbonaceous material is selected from one or more of coal gangue, coke powder and coal powder.
5. The method according to claim 4, wherein the mass of the coal gangue is 10-50% of the mass of the titanium extraction tailings.
6. The method according to claim 4, wherein the mass of the coke powder is 5-8% of the mass of the titanium extraction tailings.
7. The method according to claim 4, wherein the mass of the pulverized coal is 5-10% of the mass of the titanium extraction tailings.
8. The method according to claim 1, wherein the particle size of the pellets is 5 to 15 mm.
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| CN101280361A (en) * | 2008-05-13 | 2008-10-08 | 陈健 | Process method of tailings in vanadium extraction |
| CN101649392A (en) * | 2009-09-23 | 2010-02-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Pelletizing method of ilmenite concentrates and pellet binder |
| CN105289499A (en) * | 2015-11-27 | 2016-02-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Modified carbon material as well as preparation and application thereof |
| JP2018154525A (en) * | 2017-03-17 | 2018-10-04 | Ｊｆｅスチール株式会社 | Method for manufacturing material for water area and material for water area |
| CN109020269A (en) * | 2018-08-31 | 2018-12-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Processing method of titanium extraction tailings and products thereof, preparation method of cement additive and products thereof, cement and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2872586B2 (en) * | 1994-10-05 | 1999-03-17 | 川崎製鉄株式会社 | Reforming method of stainless steel slag |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280361A (en) * | 2008-05-13 | 2008-10-08 | 陈健 | Process method of tailings in vanadium extraction |
| CN101649392A (en) * | 2009-09-23 | 2010-02-17 | 攀钢集团攀枝花钢铁研究院有限公司 | Pelletizing method of ilmenite concentrates and pellet binder |
| CN105289499A (en) * | 2015-11-27 | 2016-02-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Modified carbon material as well as preparation and application thereof |
| JP2018154525A (en) * | 2017-03-17 | 2018-10-04 | Ｊｆｅスチール株式会社 | Method for manufacturing material for water area and material for water area |
| CN109020269A (en) * | 2018-08-31 | 2018-12-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Processing method of titanium extraction tailings and products thereof, preparation method of cement additive and products thereof, cement and preparation method thereof |
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