CN116282116A - Circulation process for mineralizing carbon dioxide by magnesium slag - Google Patents
Circulation process for mineralizing carbon dioxide by magnesium slag Download PDFInfo
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- CN116282116A CN116282116A CN202310223497.2A CN202310223497A CN116282116A CN 116282116 A CN116282116 A CN 116282116A CN 202310223497 A CN202310223497 A CN 202310223497A CN 116282116 A CN116282116 A CN 116282116A
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- Prior art keywords
- carbon dioxide
- magnesium slag
- magnesium
- recycling process
- coarse grinding
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 96
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 55
- 239000011777 magnesium Substances 0.000 title claims abstract description 55
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 48
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 48
- 239000002893 slag Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 30
- 230000001089 mineralizing effect Effects 0.000 title claims description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000227 grinding Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 238000002386 leaching Methods 0.000 claims abstract description 23
- 238000004064 recycling Methods 0.000 claims abstract description 19
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 12
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 8
- 239000001095 magnesium carbonate Substances 0.000 claims description 8
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 6
- 238000006477 desulfuration reaction Methods 0.000 claims description 6
- 230000023556 desulfurization Effects 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 abstract description 20
- 239000002918 waste heat Substances 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/181—Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/24—Magnesium carbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a recycling process of magnesium slag mineralized carbon dioxide, which comprises the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials; step 2, adding 1-2mol/L ammonium chloride solution into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1-1.5 hours, wherein the water bath temperature is 50-60 ℃, and obtaining leaching liquid and filter residues; and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3-4 hours, and keeping the temperature at 40-50 ℃ in the whole process to obtain precipitation and reaction solution. The invention effectively carries out creative coupling on the magnesium slag waste heat recovery and the discharged product (carbon dioxide tail gas), thereby realizing the utilization of waste heat and the recycling of the discharged product.
Description
Technical Field
The invention relates to the technical field of industrial solid waste utilization, in particular to a recycling process of magnesium slag mineralized carbon dioxide.
Background
Along with the expansion of the metal magnesium industry, on one hand, the yield of the magnesium slag produced by the silicothermic process is increased year by year, and the magnesium slag has certain harm to the environment and human health, so that the recycling of the magnesium slag is urgent, and the main components of the magnesium slag, namely magnesium hydroxide, calcium oxide and magnesium oxide, are recycled. Most of the methods adopted by the existing manufacturers are stacked on site, so that not only is the resource wasted and the environment influenced, but also no process technology for treating the magnesium slag is available at home; on the other hand, the emission of carbon dioxide in the magnesium industry and other industrial waste gases has caused a serious greenhouse effect, and the capture and utilization of carbon dioxide has become a major concern in the world industry and scientific research at present.
For this reason, we propose a treatment process of magnesium slag to solve the above problems.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a recycling process of magnesium slag mineralized carbon dioxide, which aims to overcome the technical problems existing in the prior related art.
For this purpose, the invention adopts the following specific technical scheme:
the magnesium slag mineralized carbon dioxide circulation process comprises the following steps of 1, coarsely grinding cooled magnesium slag to a granularity of not more than 150 meshes to obtain coarse grinding materials;
step 2, adding 1-2mol/L ammonium chloride solution into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1-1.5 hours, wherein the water bath temperature is 50-60 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3-4 hours, and keeping the temperature at 40-50 ℃ in the whole process to obtain precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3 to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
In one possible design, in step 2, the stirring speed is 200-300r/min.
In one possible design, in step 2, the ammonium chloride solution is reacted with the coarse abrasive in a ratio of 30 to 40ml to 5 g.
In a possible design, in the step 2 and the step 3, steam heating is performed, and the steam is obtained by performing heat exchange treatment on magnesium slag prepared by smelting magnesium by a Pidgeon method as a heat source medium and water so as to heat the water.
In one possible design, in step 2, the ammonium chloride solution is reacted with the coarse abrasive in a ratio of 35ml to 5 g.
In one possible design, in step 2, the stirring speed is 240r/min.
In one possible design, the water bath temperature in step 2 is 55 ℃.
In one possible design, the drying temperature is 60-65 degrees celsius in step 4.
In a possible design, in step 3, the carbon dioxide-containing gas is industrial tail gas after desulfurization and denitrification.
In one possible design, in step 3, the stirring speed is 50-80r/min.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the magnesium slag is leached through ammonium chloride, and the leaching liquid is used for in-situ solid sealing of carbon dioxide to prepare high-purity calcium carbonate and magnesium carbonate products.
In addition, the invention effectively carries out innovative coupling on the magnesium slag waste heat recovery and the emission product (carbon dioxide tail gas), thereby realizing the utilization of waste heat and the resource utilization of the emission product, and further realizing the multiple advantages of environmental management, energy conservation, emission reduction and reasonable resource utilization.
Detailed Description
Example 1:
the embodiment discloses a recycling process of magnesium slag mineralized carbon dioxide, which comprises the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials;
step 2, adding an ammonium chloride solution with the concentration of 1.5mol/L into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1.5 hours, wherein the water bath temperature is 55 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3 hours, and keeping the temperature at 40 ℃ in the whole process to obtain a precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3, wherein the drying temperature is 60 ℃, so as to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
In the step 2, the stirring speed is 300r/min, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 35ml to 5g, the step 2 and the step 3 are both heated by water vapor, and the water vapor is obtained by heat exchange treatment of magnesium slag prepared by the Pidgeon magnesium smelting as a heat source medium and water so as to heat the water.
In step 3, the stirring speed was 50r/min.
In this example, 1 part is 100kg. In the step 3, the carbon dioxide-containing gas is the industrial tail gas after desulfurization, denitrification and purification, and the concentration of the carbon dioxide is 30-34% through actual measurement.
According to the invention, the magnesium slag is leached through ammonium chloride, and the leaching liquid is used for in-situ solid sealing of carbon dioxide to prepare high-purity calcium carbonate and magnesium carbonate products.
In addition, the invention effectively carries out innovative coupling on the magnesium slag waste heat recovery and the emission product (carbon dioxide tail gas), thereby realizing the utilization of waste heat and the resource utilization of the emission product, and further realizing the multiple advantages of environmental management, energy conservation, emission reduction and reasonable resource utilization.
The invention can realize recycling of solid waste and carbon dioxide, can realize green regeneration, can control the additionally input material consumption and energy consumption, hardly generates secondary pollution, can realize carbon emission reduction and utilization, and is green and environment-friendly. Meanwhile, the method has simple process, low production cost and high added value of products by using the existing equipment on site. The invention has no three wastes discharge, thus, the invention has great economic and social benefits and good application prospect.
According to statistics, under the technological parameters of the embodiment, 1.1-1.2 tons of carbon dioxide can be fixed per ton of magnesium slag.
Example 2:
the embodiment discloses a recycling process of magnesium slag mineralized carbon dioxide, which comprises the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials;
step 2, adding 1mol/L ammonium chloride solution into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1.5 hours, wherein the water bath temperature is 50 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 4 hours, and keeping the temperature at 50 ℃ in the whole process to obtain a precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3, wherein the drying temperature is 65 ℃ to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
In the step 2, the stirring speed is 200r/min, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 30ml to 5g, the step 2 and the step 3 are both heated by steam, and the steam is obtained by heat exchange treatment of magnesium slag prepared by the Pidgeon magnesium smelting as a heat source medium and water so as to heat the water.
In step 3, the stirring speed was 60r/min.
In this example, 1 part is 100kg. In the step 3, the carbon dioxide-containing gas is the industrial tail gas after desulfurization, denitrification and purification, and the concentration of the carbon dioxide is 30-34% through actual measurement.
According to statistics, under the technological parameters of the embodiment, 1.4-1.5 tons of carbon dioxide can be fixed per ton of magnesium slag.
Example 3:
the invention discloses a recycling process of magnesium slag mineralized carbon dioxide, which comprises the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials;
step 2, adding 2mol/L ammonium chloride solution into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1.5 hours, wherein the water bath temperature is 60 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3.5 hours, and keeping the temperature at 45 ℃ in the whole process to obtain a precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3, wherein the drying temperature is 65 ℃ to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
In the step 2, the stirring speed is 240r/min, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 40ml to 5g, the step 2 and the step 3 are both heated by water vapor, and the water vapor is obtained by heat exchange treatment of magnesium slag prepared by the Pidgeon magnesium smelting as a heat source medium and water so as to heat the water.
In step 3, the stirring speed was 70r/min.
In this example, 1 part is 100kg. In the step 3, the carbon dioxide-containing gas is the industrial tail gas after desulfurization, denitrification and purification, and the concentration of the carbon dioxide is 30-34% through actual measurement.
According to statistics, under the technological parameters of the embodiment, 1.15-1.25 tons of carbon dioxide can be fixed per ton of magnesium slag.
Example 4:
the method comprises the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials;
step 2, adding an ammonium chloride solution with the concentration of 1.5mol/L into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1 hour, wherein the water bath temperature is 60 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3 hours, and keeping the temperature at 40 ℃ in the whole process to obtain a precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3, wherein the drying temperature is 60 ℃, so as to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
In the step 2, the stirring speed is 280r/min, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 30ml to 5g, the step 2 and the step 3 are both heated by steam, and the steam is obtained by heat exchange treatment of magnesium slag prepared by the Pidgeon magnesium smelting as a heat source medium and water so as to heat the water.
In step 3, the stirring speed was 80r/min.
In this example, 1 part is 100kg. In the step 3, the carbon dioxide-containing gas is the industrial tail gas after desulfurization, denitrification and purification, and the concentration of the carbon dioxide is 30-34% through actual measurement.
According to statistics, under the technological parameters of the embodiment, 1.0-1.1 tons of carbon dioxide can be fixed per ton of magnesium slag.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The recycling process of the magnesium slag mineralized carbon dioxide is characterized by comprising the following steps of 1, coarsely grinding cooled magnesium slag until the granularity is not more than 150 meshes to obtain coarse grinding materials;
step 2, adding 1-2mol/L ammonium chloride solution into the coarse grinding material obtained in the step 1, heating in a water bath, stirring until leaching reaction is carried out for 1-1.5 hours, wherein the water bath temperature is 50-60 ℃, and obtaining leaching liquid and filter residues;
and 3, introducing carbon dioxide-containing gas into the leaching solution obtained in the step 2, stirring and reacting for 3-4 hours, and keeping the temperature at 40-50 ℃ in the whole process to obtain precipitation and reaction solution.
And 4, carrying out vacuum suction filtration, rinsing and drying on the precipitate in the step 3 to obtain calcium carbonate and magnesium carbonate solids, and returning the residual reaction solution to circularly leach coarse grinding materials.
2. The recycling process of magnesium slag mineralized carbon dioxide according to claim 1, characterized in that in step 2, the stirring speed is 200-300r/min.
3. The recycling process of magnesium slag mineralized carbon dioxide according to claim 1, characterized in that in step 2, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 30-40 ml:5 g.
4. The recycling process of magnesium slag mineralized carbon dioxide according to claim 1, wherein in step 2 and step 3, steam is heated, and the steam is obtained by heat exchange treatment of magnesium slag prepared by Pidgeon magnesium smelting as a heat source medium with water to heat the water.
5. A recycling process for mineralizing carbon dioxide by magnesium slag according to claim 3, wherein in step 2, the reaction ratio of the ammonium chloride solution and the coarse grinding material is 35ml to 5 g.
6. The recycling process of magnesium slag mineralized carbon dioxide according to claim 2, characterized in that in step 2, the stirring speed is 240r/min.
7. The recycling process of magnesium slag mineralized carbon dioxide according to any one of claims 1 to 6, characterized in that in step 2, the water bath temperature is 55 ℃.
8. The recycling process of magnesium slag mineralized carbon dioxide according to claim 7, wherein in step 4, the drying temperature is 60-65 ℃.
9. The process for recycling magnesium slag mineralized carbon dioxide according to any one of claims 1-6 or 8, characterized in that in step 3, the carbon dioxide-containing gas is industrial tail gas after desulfurization and denitrification.
10. The recycling process of magnesium slag mineralized carbon dioxide according to claim 9, characterized in that in step 3, the stirring speed is 50-80r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310223497.2A CN116282116A (en) | 2023-03-09 | 2023-03-09 | Circulation process for mineralizing carbon dioxide by magnesium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310223497.2A CN116282116A (en) | 2023-03-09 | 2023-03-09 | Circulation process for mineralizing carbon dioxide by magnesium slag |
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| CN116282116A true CN116282116A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310223497.2A Pending CN116282116A (en) | 2023-03-09 | 2023-03-09 | Circulation process for mineralizing carbon dioxide by magnesium slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117660770A (en) * | 2023-11-29 | 2024-03-08 | 原初科技（北京）有限公司 | Ore dissolving device and method |
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| CN102247753A (en) * | 2011-07-19 | 2011-11-23 | 南京大学 | Process for storing carbon dioxide in flue gas by utilizing brucite |
| KR20130032093A (en) * | 2011-09-22 | 2013-04-01 | 현대자동차주식회사 | Method for carbon dioxide solidification |
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| CN115141941A (en) * | 2022-06-27 | 2022-10-04 | 中铝郑州有色金属研究院有限公司 | Comprehensive utilization method of dolomite |
| CN115364643A (en) * | 2022-07-06 | 2022-11-22 | 上海交通大学 | Grading treatment method for fixing carbon dioxide by utilizing metallurgical slag |
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2023
- 2023-03-09 CN CN202310223497.2A patent/CN116282116A/en active Pending
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| JP2005074310A (en) * | 2003-08-29 | 2005-03-24 | Research Institute Of Innovative Technology For The Earth | Recovery method of alkaline earth metal and fixation method of carbon dioxide |
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| CN102247753A (en) * | 2011-07-19 | 2011-11-23 | 南京大学 | Process for storing carbon dioxide in flue gas by utilizing brucite |
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| CN117660770A (en) * | 2023-11-29 | 2024-03-08 | 原初科技（北京）有限公司 | Ore dissolving device and method |
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