CN104003412A - Method for preparing lithium silicate high-temperature carbon sequestration material by means of serpentine ore residues after magnesium extracting - Google Patents
Method for preparing lithium silicate high-temperature carbon sequestration material by means of serpentine ore residues after magnesium extracting Download PDFInfo
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- CN104003412A CN104003412A CN201410270711.0A CN201410270711A CN104003412A CN 104003412 A CN104003412 A CN 104003412A CN 201410270711 A CN201410270711 A CN 201410270711A CN 104003412 A CN104003412 A CN 104003412A
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- serpentine
- magnesium
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- high temperature
- lithium
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- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 title claims abstract description 44
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000011777 magnesium Substances 0.000 title claims abstract description 39
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052912 lithium silicate Inorganic materials 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 5
- 229910052799 carbon Inorganic materials 0.000 title abstract description 5
- 230000009919 sequestration Effects 0.000 title abstract 2
- 238000003795 desorption Methods 0.000 claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 14
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 claims abstract description 9
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 20
- 239000003575 carbonaceous material Substances 0.000 claims description 18
- 238000002336 sorption--desorption measurement Methods 0.000 claims description 9
- 230000004087 circulation Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000010425 asbestos Substances 0.000 claims description 7
- 229910052895 riebeckite Inorganic materials 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- ZVLDJSZFKQJMKD-UHFFFAOYSA-N [Li].[Si] Chemical compound [Li].[Si] ZVLDJSZFKQJMKD-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052710 silicon Inorganic materials 0.000 abstract description 7
- 239000010703 silicon Substances 0.000 abstract description 7
- 229910052744 lithium Inorganic materials 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 abstract description 2
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 abstract 2
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 abstract 2
- 239000002803 fossil fuel Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 238000003746 solid phase reaction Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012769 display material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 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
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000010442 halite Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003836 solid-state method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a method for preparing a lithium silicate high-temperature carbon sequestration material by means of serpentine ore residues after magnesium extracting. According to the technical scheme, the method includes the steps that (1) the serpentine ore residues after magnesium extracting serve as a silicon source, lithium hydroxide monohydrate is selected to serve as a lithium source, and a high-temperature solid-phase reaction is carried out; (2) the molar ratio of materials is controlled to range from 1:4 to 1:4.2 according to the molar ratio of silicon atoms contained in the serpentine ore residues after magnesium extracting and lithium atoms contained in the lithium hydroxide monohydrate, the calcination temperature of the mixed materials in a high-temperature furnace is controlled to be 480-550 DEG C, and calcination time is controlled to be 0.5-1.5 h. The CO2 adsorption capacity of the prepared materials in a CO2 atmosphere is 15%-30%, the largest adsorption rate and the largest desorption rate can both reach more than 8% per minute, and after high-temperature adsorption and desorption are cycled for three times, the retention rate of the CO2 adsorption capacity of the materials relative to an initial value is more than 85%. The materials used in the method are low in price, the process is simple, temperature in the preparing process is low, the method is clean and environmentally friendly, and the prepared materials can be used for collecting and recycling CO2 in high-temperature flue gas in fossil fuel power plants and the like.
Description
Technical field
The present invention relates to a kind ofly take serpentine and carry magnesium white residue and prepare lithium silicate type high temperature CO as raw material
2the method of collecting material, belongs to serpentine resource comprehensive utilization and the solid carbon of high temperature and energy-saving and emission-reduction field.
Background technology
Serpentine carry magnesium white residue be at present to serpentine resource (comprise take the asbestos tailings that serpentine is main component) deep processing to fully utilize a kind of main intermediate product of gained in the multiple valuable element processes such as its contained magnesium, silicon, iron, nickel, being serpentine through suitable treatment process, (water logging after acidleach or salt are molten) is extracted out remaining residue after most magnesia components, its output relatively the serpentine material quantity accounting of processing conventionally can be up to 40% ~ 50%, serpentine is carried the direct relation that efficiently utilizes of magnesium white residue and the high-efficiency comprehensive utilization of serpentine resource.
Serpentine is carried magnesium white residue and be take unformed silicon-dioxide as main chemical compositions, contains the components such as a small amount of magnesium oxide, calcium oxide, ferric oxide simultaneously, according to the difference of serpentine complete processing, carries contained SiO in magnesium white residue
2content can be from 55% ~ 95% variation, and its specific surface area can reach 100 ~ 300m conventionally
2/ g is a kind of Silicon-rich product with bigger serface, high reaction activity.The composition and structure feature of utilizing serpentine to carry magnesium white residue is added environmentally conscious materials lithium silicate that the preparation of suitable lithium source has high added value and can effectively be overcome serpentine in the past and put forward the not high drawback of magnesium white residue utilising efficiency, thereby can directly drive the high-efficiency comprehensive utilization of serpentine resource, and the certain environmental benefit of subsidiary results.
Along with highlighting of Global Greenhouse Effect, reduce CO
2discharge become one of most important technological line of reply climate warming.The solid carbon material of lithium silicate high temperature not only has at high temperature to CO as the solid carbon material of emerging in recent years a kind of efficient high temperature
2good absorption adaptability, also has larger CO
2absorptive capacity, adsorption/desorption speed and good cyclic regeneration faster, therefore at numerous CO
2in high-temp solid absorption agent, show one's talent, can be widely used in the CO under the hot environments such as fossil fired power plant stack gas and vehicle exhaust
2trapping is significant to reducing discharging.
The synthetic many factors relating to of the solid carbon material of lithium silicate high temperature, summary say two aspects of selection that mainly contain material choice and synthesis technique.Wherein, the selection of synthesis material generally includes again the selection in silicon source and the selection in lithium source; High temperature solid-state synthesis technique mainly be take at present as main flow technique in synthesis technique aspect, but also has the process integration of sol-gel, saturated liquid phase impregnating and high temperature solid-state method.Researchists more both domestic and external once had corresponding research to the solid carbon material of lithium silicate high temperature synthetic, but great majority research is to take chemical pure or be slightly silicon source through the silicon-dioxide of processing, tetraethoxy etc., or take relatively inexpensive but non-renewable siliceous nonmetalliferous ore as diatomite, zeolite etc. be silicon source, report current in the selection in lithium source is also main mainly with Quilonum Retard, lithium nitrate, and the synthesis temperature of material is mostly more than 600 ℃.Generally speaking, at present the solid carbon material preparation method of the lithium silicate high temperature of report exists that raw materials cost is higher, the synthetic energy consumption of material is high mostly, and building-up reactions itself also has CO
2or the drawback of other dusty gass discharges.
China has tax to deposit abundant serpentine mineral resource and the huge asbestos tailings resource of accumulating amount, these resources are especially extremely urgent as the comprehensive development and utilization of the asbestos tailings of secondary resource, fully utilize the multiple valuable elements such as its contained magnesium, silicon, iron, nickel and also proved the only way which must be passed, therefore, at present and the following serpentine of quite growing in one period carry magnesium white residue and will have sufficient source.Up to now, there is not yet and take serpentine and carry magnesium white residue and prepare the report of the patent of invention, Research Literature etc. of the solid carbon material of lithium silicate high temperature as raw material.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of at high temperature efficient absorption CO
2the preparation method of the solid carbon material of lithium silicate high temperature, it take serpentine, and to carry magnesium white residue (carrying magnesium white residue containing asbestos tailings) be raw material, add monohydrate lithium hydroxide and do lithium source, preparation cost and the reaction process energy consumption of lithium silicate material have not only been reduced, guaranteed building-up reactions itself not greenhouse gases and the dusty gas of release new, new way has been opened up in the efficient utilization of also carrying magnesium white residue for serpentine.
Technical scheme of the present invention is: serpentine is carried to magnesium white residue or carried magnesium white residue through corresponding technique pretreated serpentine than fully, mix by certain metering with monohydrate lithium hydroxide, material after mixing is placed in to high temperature reaction stove, under certain calcining temperature, calcine certain hour, after reaction finishes, obtain the solid carbon material of lithium silicate high temperature.
Concrete technology parameter of the present invention is:
Serpentine carries magnesium white residue and monohydrate lithium hydroxide is prepared burden by silicon lithium mol ratio 1:4 ~ 4.2, and the calcining temperature of mixture in High Temperature Furnaces Heating Apparatus is 480 ℃ ~ 550 ℃, and calcination time is 0.5h ~ 1.5h.
The main reaction of preparation process is as follows:
Made lithium silicate material is to CO
2high temperature absorptive character tests: the lithium silicate material of preparing gained by above method is placed in to thermogravimetric analyzer, and passes to CO
2atmosphere is carried out CO in the temperature range of 400 ℃ ~ 800 ℃
2the test of high temperature absorption cycle, index of correlation test result is: CO
2absorptive capacity is 15% ~ 30%; Adsorption temp interval is 500 ℃ ~ 720 ℃, and efficient adsorption temperature range is 670 ℃ ~ 710 ℃; Desorption temperature interval is more than 720 ℃, and efficient desorption temperature interval is 745 ℃ ~ 755 ℃; More than maximum adsorption, maximum desorption rate all reach 8%/min; Material after the circulation of three high temperature adsorption desorptions its to CO
2absorptive capacity compare material initial absorption capacity conservation rate more than 85%.
Material is through CO repeatedly
2after adsorption desorption circulation, it is to CO
2absorptive capacity conservation rate by formula 1, calculate:
A=(C ÷ B) * 100% (formula 1)
In formula 1, the concrete meaning of each letter is as follows: A---absorptive capacity conservation rate; B---material absorbs CO for the first time
2time resulting absorptive capacity value; C---material is through CO repeatedly
2after adsorption desorption circulation, it is to CO
2absorptive capacity value.
Positively effect of the present invention: (1) the present invention carries magnesium white residue as raw material with the intermediate product serpentine of cheap serpentine (comprise take the Industrial Solid Waste asbestos tailings that serpentine is main component) processing and utilization, makes the preparation cost of the solid carbon material of lithium silicate high temperature relatively low; Material preparation temperature is controlled at below 550 ℃, and calcination time is controlled in 1.5h, makes preparation process energy consumption lower; Choosing monohydrate lithium hydroxide is lithium source, and making whole synthetic reaction process by product is water, can not increase any new pollution to environment.
(2) the solid carbon material of the lithium silicate high temperature of synthesized of the present invention has high temperature adsorption, desorption rate faster, can reach adsorption and desorption balance in the short period of time, and there is good cyclic regeneration performance, can be used for CO in the high-temperature flue gas such as fossil fired power plant
2separation and trapping, to reach, reduce carbon emission, reclaim carbon resource, relax the effect of Greenhouse effect.
(3) the present invention is that a new way has been opened up in the efficient utilization that serpentine is carried magnesium white residue, is conducive to promote the high-efficiency comprehensive utilization of serpentine resource (containing take the asbestos tailings that serpentine is main component).
Embodiment
Below in conjunction with example, further illustrate technical scheme of the present invention and effect.
Embodiment mono-: take serpentine and carry magnesium white residue (carrying magnesium technique gained through acidleach by serpentine) 25g, according to the SiO carrying in magnesium white residue
2content (actual numerical value is 76.29%) takes the monohydrate lithium hydroxide (actual numerical value is 53.4g) of respective amount by silicon lithium atom mol ratio 1:4, the two is even by the abundant blending dispersion of homogenizer; Mixture is placed in to High Temperature Furnaces Heating Apparatus, at 500 ℃, calcines 1h, after product is cooling, take out, slightly through breaing up, obtain the solid carbon material powder of lithium silicate high temperature.The lithium silicate powder making is placed in to thermogravimetric analyzer, passes to CO
2atmosphere, 10 ℃/min of monitoring instrument temperature rise rate, control temperature range is room temperature ~ 800 ℃, carries out CO
2the test of high temperature adsorption, desorption; Test result display material starts CO in the time of approximately 500 ℃
2absorb, after 670 ℃, start significantly to accelerate CO
2absorption, in the time of 698 ℃ to CO
2uptake rate reach maximum, up to 10.51%/min, in the time of 710 ℃, material is to CO
2absorption reach capacity, when its absorptive capacity is 26.72%, 751 ℃, material is to CO
2desorption rate reach maximum, reach 8.33%/min, after approximately 780 ℃, desorption is tending towards complete substantially; Material is carried out to CO in the temperature range of 400 ℃ ~ 800 ℃
2the performance test of high temperature absorption cycle, test result shows that material is to CO after three high temperature adsorption desorption circulations
2absorptive capacity is 23%, and by formula 1, calculating absorbed capability retention after three high temperature adsorption desorption circulations is 86%.
Embodiment bis-: take serpentine and carry magnesium white residue (by snake halite method roasting-flooding magnesium technique gained) 25g, it is carried out to appropriate acidleach and process, get filter residue and dry and break up after filtration; According to the SiO in gained filter residue
2content (actual numerical value is 80.51%) takes the monohydrate lithium hydroxide (actual numerical value is 57.8g) of respective amount by silicon lithium atom mol ratio 1:4.1, the two is even by the abundant blending dispersion of homogenizer; Mixture is placed in to High Temperature Furnaces Heating Apparatus, at 550 ℃, calcines 50min, after product is cooling, take out, slightly through breaing up, obtain the solid carbon material powder of lithium silicate high temperature.The lithium silicate powder making is placed in to thermogravimetric analyzer, passes to CO
2atmosphere, 10 ℃/min of monitoring instrument temperature rise rate, control temperature range is room temperature ~ 800 ℃, carries out CO
2the test of high temperature adsorption, desorption; Test result display material starts CO in the time of approximately 520 ℃
2absorb, after 680 ℃, start significantly to accelerate CO
2absorption, in the time of 710 ℃ to CO
2uptake rate reach maximum, up to 10.20%/min, in the time of 722 ℃, material is to CO
2absorption reach capacity, when its absorptive capacity is 21.88%, 748 ℃, material is to CO
2desorption rate reach maximum, reach 9.49%/min, after approximately 780 ℃, desorption is tending towards complete substantially; Material is carried out to CO in the temperature range of 400 ℃ ~ 800 ℃
2the performance test of high temperature absorption cycle, test result shows that material is to CO after three high temperature adsorption desorption circulations
2absorptive capacity is 19%, and by formula 1, calculating absorbed capability retention after three high temperature adsorption desorption circulations is 87%.
Claims (3)
1. utilize serpentine to put forward the method that magnesium white residue is prepared the solid carbon material of lithium silicate high temperature, it is characterized in that its processing step is as follows:
(1) serpentine carried to magnesium white residue or carried magnesium white residue and monohydrate lithium hydroxide by silicon lithium mol ratio 1:4 ~ 4.2 batching and mix through pretreated serpentines such as acidleach;
(2) by step (1) mixture in High Temperature Furnaces Heating Apparatus in 480 ℃ ~ 550 ℃ temperature lower calcination 0.5h ~ 1.5h, obtain the solid carbon material of lithium silicate high temperature.
2. a kind of serpentine that utilizes according to claim 1 is put forward the method that magnesium white residue is prepared the solid carbon material of lithium silicate high temperature, it is characterized in that, described serpentine is carried magnesium white residue and is comprised serpentine and take asbestos tailings gained residue after extracting magnesium and the serpentine gained residue after extracting magnesium after the molten roasting-flooding magnesium technique of salt after magnesium technique is put forward in acidleach that serpentine is main component.
3. a kind of serpentine that utilizes according to claim 1 is put forward the method that magnesium white residue is prepared the solid carbon material of lithium silicate high temperature, it is characterized in that: the solid carbon material CO of prepared lithium silicate high temperature
2absorptive capacity 15% ~ 30%; Interval 500 ℃ ~ 720 ℃ of adsorption temp, 670 ℃ ~ 710 ℃ of efficient adsorption temperature ranges; Desorption temperature interval is more than 720 ℃, interval 745 ℃ ~ 755 ℃ of efficient desorption temperature; More than maximum adsorption, maximum desorption rate all reach 8%/min; Material is CO after three high temperature adsorption desorption circulations
2absorptive capacity conservation rate is more than 85%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201410270711.0A CN104003412B (en) | 2014-06-18 | 2014-06-18 | A kind of method utilizing serpentine to carry magnesium white residue to prepare the solid carbon material of lithium silicate high temperature |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788021A (en) * | 1980-11-21 | 1982-06-01 | Fuji:Kk | Method and apparatus for manufacturing sodium silicate |
| CN102241516A (en) * | 2010-05-13 | 2011-11-16 | 中国科学院上海硅酸盐研究所 | Method for preparing Li4SiO4 ceramic powder by water-based sol-gel process |
| CN102826561A (en) * | 2012-09-14 | 2012-12-19 | 合肥国轩高科动力能源有限公司 | Method for synthesizing lithium silicate with rick husk serving as raw material |
-
2014
- 2014-06-18 CN CN201410270711.0A patent/CN104003412B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788021A (en) * | 1980-11-21 | 1982-06-01 | Fuji:Kk | Method and apparatus for manufacturing sodium silicate |
| CN102241516A (en) * | 2010-05-13 | 2011-11-16 | 中国科学院上海硅酸盐研究所 | Method for preparing Li4SiO4 ceramic powder by water-based sol-gel process |
| CN102826561A (en) * | 2012-09-14 | 2012-12-19 | 合肥国轩高科动力能源有限公司 | Method for synthesizing lithium silicate with rick husk serving as raw material |
Non-Patent Citations (3)
| Title |
|---|
| 林慧星等: "硅酸锂材料的制备及其新应用", 《佛山陶瓷》 * |
| 王彤彤等: "用蛇纹石制备多孔二氧化硅", 《非金属矿》 * |
| 陈虹等: "由蛇纹石酸浸渣制取白炭黑工艺研究", 《化工矿物与加工》 * |
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