CN107021687A - With CO2Gas is foam geopolymer of filling gas and preparation method thereof - Google Patents
With CO2Gas is foam geopolymer of filling gas and preparation method thereof Download PDFInfo
- Publication number
- CN107021687A CN107021687A CN201710426359.9A CN201710426359A CN107021687A CN 107021687 A CN107021687 A CN 107021687A CN 201710426359 A CN201710426359 A CN 201710426359A CN 107021687 A CN107021687 A CN 107021687A
- Authority
- CN
- China
- Prior art keywords
- gas
- foam
- solid
- geopolymer
- slag
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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 discloses one kind with CO2Gas is the foam geopolymer of filling gas, using slag micropowder and other solid slag micro mists as primary raw material, using waterglass as exciting agent, with CO2Gas is foam-filled gas.Wherein the mass percent of solid powder is constituted：Slag micropowder 20 100%, solid slag micro mist 0 80%；Liquid-solid ratio is 0.3 0.6, and waterglass consumption accounts for the 3 5% of solid powder quality, and foaming agent consumption accounts for the 0.1 2% of solid powder quality.Inventive polymers, not only can improve the intensity of geopolymer by carburizing reagent absorbing carbon dioxide, and foam geopolymer can be realized to CO2The of short duration of gas is sealed up for safekeeping and CO2Gas slowly overflow gradually by the soil body absorb it is permanent cured, reached CO2Utilization, effective unification for sealing up for safekeeping and solidifying, be a kind of stabilization, permanent carbon sequestration mode.
Description
Technical field
The present invention relates to a kind of foam geopolymer, specifically one kind is with CO2Gas for filling gas foam gather
Compound, belongs to and seals and solidify CO up for safekeeping2For the purpose of spin-off, also disclose its preparation method.
Background technology
Oneself is paid much attention to by countries in the world for global warming, and it, which endangers, has also deeply affected people's life, Melting Glacierss,
Sea level rise, island is flooded, animals and plants become extinct, disruption of ecological balance, and frequent natural calamity, communicable disease spread；And titanium dioxide
Carbon（CO2）Discharge is approved by countries in the world as the main human factor of global warming.Therefore, each international body, weather
Reduction discharge CO is all finding in tissue and national governments2Most fast, most efficient method.Although various countries' response is positive, measure is tight
Compel, progress in order, but improves energy efficiency, using the paths such as regenerative resource reduction carbon emission, emission reduction effect due to relying primarily on
Fruit is unsatisfactory.In the modern society using the energy as development driving, new energy is studied, provided using by using scope, technology
The limitation such as gold is difficult in short-term, and fossil fuel will continue to be the main supply energy, and energy resource structure also can not be in a short time
Sexually revise at all, the carbon emission pressure that the mankind are faced is huge.At present, energy-saving and emission-reduction, the adjustment energy are being carried out energetically by China
Many important measures such as structure, increase low-carbon fuel ratio, and in terms of the recovery of carbon dioxide, trapping and comprehensive utilization necessarily
Following main developing direction.At present, CO is solved2The effective ways of problem are to CO2Seal up for safekeeping and solidify.
Existing CO2Seal up for safekeeping and curing technology：Ore carbonization, industrial utilization and ocean are sealed up for safekeeping.
Ore carbonization is to utilize CO2The stable carbonate of generation is reacted so as to by CO with metal oxide2Permanently
Ground solidification is got up.Because natural reaction process is slower, therefore need to make mineral enhancement pretreatment, but this is very
Power consumption, seal CO up for safekeeping in this way by inference2Power plant to consume 60%~180% energy more.And due to by
CO is sealed in the limitation of technical minable silicic acid salt reserve, ore carbonization up for safekeeping2Potentiality may and it is pessimistic.
Industrial utilization is substantially by CO2Carbon containing industrial products are produced as reactant, so as to reach the mesh sealed up for safekeeping
, most of is to be used to produce urea.Industrial utilization is not technically that one kind preferably seals scheme up for safekeeping, because not
In same industrial flow, CO2The time of sealing up for safekeeping there was only several days, most some months, then can be degraded to CO again2, and
It is discharged into air.
It is a kind of carbon dioxide sequestration skill having a high potential in many technologies that submarine sedimentary strata carbon dioxide hydrate, which is sealed up for safekeeping,
Art, but marine environment can also be affected greatly simultaneously, such as seawater surface gas concentration lwevel increase changes the change of ocean
Learn feature, surface seawater acidifying etc..In addition, the carbon dioxide sealed up for safekeeping in the seawater runs into temperature, pressure fluctuation or ocean current change very
It is possible to escape from seawater and is discharged among air, the result run in the opposite direction with carbon dioxide sequestration can be caused on the contrary.
Geopolymer is the class novel inorganic nonmetallic materials that new development in recent years is got up, and this kind of material is more with day
Right aluminium silicate mineral or industrial solid wastes are primary raw material, abundant with other mineral admixtures and appropriate bases silicate solutions
After mixing, maintenance shaping hardening, is the binder materials that a class is bonded by aluminosilicate gelling component under normal temperature or making condition.
The content of the invention
The technical problems to be solved by the invention are, overcome the defect of prior art presence, it is proposed that one kind is with CO2Gas
Body is the foam geopolymer of filling gas, while giving its preparation method.
Product of the present invention is that CO is sealed and solidified to one kind up for safekeeping2During spin-off.Its basic ideas is：If by CO2Gas
Foam geopolymer filler is made as foam filled gas, carburizing reagent absorbing carbon dioxide can be not only utilized,
Foam geopolymer intensity is greatly improved, and the pore structure of foam geopolymer is closed spheroid, can be by CO2Gas has
Seal up to effect.Even if the CO not absorbed with the extension of time by timely carbonization2Gas can delay from foam geopolymer
It is slow to overflow, but overflow CO2Gas can also be fully absorbed by earth's crust neutral and alkali material, so as to realize to CO2Gas it is of short duration seal up for safekeeping and
It is permanent cured, so as to reach CO2Utilization, seal effective unification with mineralising up for safekeeping.
The present invention, using waterglass as exciting agent, have developed with CO using industrial solid waste residue as raw material2Gas is filling gas
The foam geopolymer of body, both with the higher strength of materials, while realize to CO again2The of short duration of gas is sealed up for safekeeping and forever solid
The purpose of change.
The object of the present invention is achieved like this：
One kind is with CO2Gas is the foam geopolymer of filling gas, comprising solid powder, and the solid powder is slag micropowder
With solid slag micro mist；It is characterized in that：Using waterglass as exciting agent, with CO2Gas is foam-filled gas；Wherein solid powder
Mass percent composition：Slag micropowder 20-100%, solid slag micro mist 0-80%；Liquid-solid ratio is 0.3-0.6, and waterglass is used
Amount is (with Na2O is counted) 3-5% of solid powder quality is accounted for, foaming agent consumption accounts for the 0.1-2% of solid powder quality.
Described slag micropowder graining blast-furnace cinder micro-powder as defined in meeting GB/T 18046-2008 standards, is granulation
After blast-furnace cinder is handled through iron removal by magnetic separation, the m of its specific surface area >=600 is made by grinding2/ kg, wherein particle diameter are super less than 30 μm
Grain refined blast-furnace cinder micro-powder accounts for more than the 90% of gross mass；Described solid slag is general solid waste, such as various tails
Ore deposit, building waste, dregs, gangue, flyash, slag, clinker, red mud, carbide slurry, Desulphurization, waste incineration slag, quarrying
Chip etc., solid slag micro mist be solid slag after grinding, make its specific surface area >=600m2/ kg, particle diameter is less than 30 μm
Particle accounts for more than the 90% of gross mass；Described waterglass is to meet liquid soluble glass as defined in GB/T 4209-2008 standards, its
Modulus is 1 to 3, and solid content is 35%-50%.
The present invention is with CO2Gas includes for the foam geopolymer preparation method of filling gas：Composite powder material preparation,
Prepared by foam, geopolymer slurry is prepared and foaming, and specific method process is as follows：
（1）It is prepared by composite powder material：Slag micropowder and solid slag powder are weighed into dispensing in proportion, and are well mixed, i.e.,
Composite powder material is made.
（2）It is prepared by foam：The quality of water and foaming agent is with 20-50:1 ratio prepares expanding foam solution, then by CO2Gas leads to
Enter foaming mechanism for foam, obtain having sealed CO up for safekeeping2The foam of gas.
（3）It is prepared by geopolymer slurry：By composite powder material with exciting agent solution to stir, that is, geopolymer is made
Slurry.
（4）Foaming：CO will have been sealed up for safekeeping2The foam of gas is mixed evenly with geopolymer slurry, that is, obtain with
CO2Gas is the foam geopolymer of filling gas（Concrete）.
CO is sealed and solidified to the foam geopolymer mine filling up for safekeeping2Method have the advantages that：
（1）Cost is low
Foam geopolymer, using industrial solid waste residue as raw material, using water glass solution as exciting agent, cost is very cheap.If
Disregard waste residue cost, use water glass solution for exciting agent, folk prescription cost is first according to the difference about 20-50 of raw material.
（2）Intensity is high, has good workability
3 days compression strength 0.5-2Mpa of foam geopolymer, the foam of 28 days compression strength 1-5Mpa. blown with carbon dioxide
Geopolymer is further improved due to carbonization, its intensity.Can pipeline, pumping pour, work progress is convenient.
（3）CO2The amount of sealing up for safekeeping of gas is big, curing degree is high
Foam geopolymer porosity is up to the CO that high concentration is full of in more than 70%, foam2Gas, the amount of sealing up for safekeeping is very big.Sealed
The CO deposited2A gas part is carbonized by geopolymer to be absorbed, even if there is the CO slowly overflowed2Gas also will be by earth's crust neutral and alkali thing
Matter all absorbs, and curing degree is up to 100%.
Embodiment
With reference to embodiment, the present invention is described in further detail
Embodiment 1
With CO2Gas is the foam geopolymer of filling gas, and solid powder is the slag micropowder that Xuzhou sincerity cement plant is produced
With Xu Zhoumao villages thermal power plant second class powered coal ash.The mass percent composition of solid powder：Slag micropowder 50%, flyash is micro-
Powder 50%.Liquid-solid ratio is 0.5, waterglass consumption（With Na2O is counted）The 4% of solid powder weight is accounted for, foaming agent consumption accounts for solid powder
Expect the 1% of weight.
Preparation method is as follows：
（1）It is prepared by composite powder material：Slag micropowder and solid slag powder are weighed into dispensing in proportion, and are well mixed, i.e.,
Composite powder material is made.
（2）It is prepared by foam：The quality of water and foaming agent is with 30:1 ratio prepares expanding foam solution, then by CO2Gas is passed through
Foaming mechanism is for foam.
（3）It is prepared by geopolymer slurry：By composite powder material with exciting agent solution to stir, that is, geopolymer is made
Slurry.
（4）Foaming：CO will have been sealed up for safekeeping2The foam of gas is mixed evenly with geopolymer slurry, that is, obtain with
CO2Gas is the foam geopolymer of filling gas（Concrete）.
Embodiment 2
It is substantially the same manner as Example 1, except that：The mass percent composition of solid powder：Slag micropowder 100%.Liquid is consolidated
Than for 0.6, waterglass consumption（With Na2O is counted）The 5% of solid powder weight is accounted for, foaming agent consumption accounts for the 2% of solid powder weight.
In prepared by foam, the mass ratio of water and foaming agent is 50:1.
Embodiment 3
It is substantially the same manner as Example 1, except that：The mass percent composition of solid powder：Slag micropowder 20%, solid gives up
Slag micro mist 80%.Liquid-solid ratio is 0.3, waterglass consumption（With Na2O is counted）The 3% of solid powder weight is accounted for, foaming agent consumption accounts for solid
The 0.1% of body powder weight.In prepared by foam, the mass ratio of water and foaming agent is 20:1.
Claims (3)
1. one kind is with CO2Gas is the foam geopolymer of filling gas, comprising solid powder, and the solid powder is that slag is micro-
Powder and solid slag micro mist；It is characterized in that：Using waterglass as exciting agent, with CO2Gas is foam-filled gas；Wherein solid powder
The mass percent composition of material：Slag micropowder 20-100%, solid slag micro mist 0-80%；Liquid-solid ratio is 0.3-0.6, with Na2O
Meter waterglass consumption accounts for the 3-5% of solid powder quality, and foaming agent consumption accounts for the 0.1-2% of solid powder quality.
2. it is according to claim 1 with CO2Gas is the foam geopolymer of filling gas, it is characterized in that：Described slag
Micro mist is the granulated blast-furnace slag after iron removal by magnetic separation is handled, the m of specific surface area >=6002/ kg, wherein particle diameter are ultra-fine less than 30 μm
Graining blast-furnace cinder micro-powder accounts for more than the 90% of gross mass；Described solid slag micro mist, specific surface area >=600m2/ kg, particle diameter
Particle less than 30 μm accounts for more than the 90% of gross mass；Described waterglass is liquid soluble glass, and its modulus is 1-3, and solid content is
35%-50%。
3. described in a kind of claim 1 with CO2Gas is the preparation method of the foam geopolymer of filling gas, and its step is：
Step 1, prepared by composite powder material：Slag micropowder and solid slag powder are weighed into dispensing in proportion, and are well mixed,
Composite powder material is made；
Step 2, prepared by foam：Water and foaming agent 20-50 by mass percentage:1 ratio prepares expanding foam solution, then by CO2Gas
Foaming mechanism is passed through for foam, obtains having sealed CO up for safekeeping2The foam of gas；
Step 3, prepared by geopolymer slurry：By composite powder material with exciting agent solution to stir, that is, geopolymer is made
Slurry；
Step 4, foaming：CO will have been sealed up for safekeeping2The foam of gas is mixed evenly with geopolymer slurry, that is, obtains with CO2
Gas is the foam geopolymer of filling gas.
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| CN201710426359.9A CN107021687B (en) | 2017-06-08 | 2017-06-08 | Foamed geopolymer with CO 2 gas as filling gas and preparation method thereof |
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| CN201710426359.9A CN107021687B (en) | 2017-06-08 | 2017-06-08 | Foamed geopolymer with CO 2 gas as filling gas and preparation method thereof |
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| CN107021687B CN107021687B (en) | 2019-12-10 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285677A (en) * | 2017-08-09 | 2017-10-24 | 中国矿业大学 | Solidification CO is sealed up for safekeeping using foam geopolymer filling mine goaf2Method |
| CN108455935A (en) * | 2018-04-10 | 2018-08-28 | 北京亿实筑业技术开发有限公司 | A kind of strong concrete based on carbon dioxide foaming agent |
| CN108503288A (en) * | 2018-05-14 | 2018-09-07 | 大连理工大学 | A kind of artificial reserved bricks and preparation method thereof based on carbonating complex excitation |
| CN112266264A (en) * | 2020-11-09 | 2021-01-26 | 河南兴安新型建筑材料有限公司 | Aerated concrete based on synergistic effect of alkali excitation and accelerated carbonization and preparation method thereof |
| CN113264734A (en) * | 2021-06-04 | 2021-08-17 | 河海大学 | Sludge curing material based on cement-based carbon dioxide foam and sludge curing method and application thereof |
| CN113622993A (en) * | 2021-09-06 | 2021-11-09 | 中国矿业大学 | Mineralizing and utilizing CO2Waste gas ecological protective coal mining method |
| CN113735500A (en) * | 2021-10-12 | 2021-12-03 | 山东科技大学 | Porous spherical particles, preparation method and application thereof in mine goaf |
| CN114230244A (en) * | 2021-12-13 | 2022-03-25 | 中南大学 | Method for synthesizing dawsonite from red mud to synergistically solidify carbon and sodium |
| CN114315301A (en) * | 2022-01-25 | 2022-04-12 | 华泰恒生科技发展（北京）有限公司 | Large-mixing-amount steel slag foam concrete foamed by taking industrial waste gas as gas and preparation method thereof |
| CN114835440A (en) * | 2022-03-17 | 2022-08-02 | 一天蓝(山东)新材料科技有限责任公司 | Carbon-fixing slag foam concrete wall material and preparation method thereof |
| CN114988912A (en) * | 2022-07-13 | 2022-09-02 | 华北水利水电大学 | Preparation method of polymer foam concrete for filling cold-formed thin-wall steel |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285677A (en) * | 2017-08-09 | 2017-10-24 | 中国矿业大学 | Solidification CO is sealed up for safekeeping using foam geopolymer filling mine goaf2Method |
| CN108455935A (en) * | 2018-04-10 | 2018-08-28 | 北京亿实筑业技术开发有限公司 | A kind of strong concrete based on carbon dioxide foaming agent |
| CN108503288A (en) * | 2018-05-14 | 2018-09-07 | 大连理工大学 | A kind of artificial reserved bricks and preparation method thereof based on carbonating complex excitation |
| CN112266264A (en) * | 2020-11-09 | 2021-01-26 | 河南兴安新型建筑材料有限公司 | Aerated concrete based on synergistic effect of alkali excitation and accelerated carbonization and preparation method thereof |
| CN113264734A (en) * | 2021-06-04 | 2021-08-17 | 河海大学 | Sludge curing material based on cement-based carbon dioxide foam and sludge curing method and application thereof |
| CN113622993A (en) * | 2021-09-06 | 2021-11-09 | 中国矿业大学 | Mineralizing and utilizing CO2Waste gas ecological protective coal mining method |
| CN113622993B (en) * | 2021-09-06 | 2022-05-17 | 中国矿业大学 | Mineralization ecological protective coal mining method utilizing CO2 waste gas |
| CN113735500A (en) * | 2021-10-12 | 2021-12-03 | 山东科技大学 | Porous spherical particles, preparation method and application thereof in mine goaf |
| CN114230244A (en) * | 2021-12-13 | 2022-03-25 | 中南大学 | Method for synthesizing dawsonite from red mud to synergistically solidify carbon and sodium |
| CN114315301A (en) * | 2022-01-25 | 2022-04-12 | 华泰恒生科技发展（北京）有限公司 | Large-mixing-amount steel slag foam concrete foamed by taking industrial waste gas as gas and preparation method thereof |
| CN114835440A (en) * | 2022-03-17 | 2022-08-02 | 一天蓝(山东)新材料科技有限责任公司 | Carbon-fixing slag foam concrete wall material and preparation method thereof |
| CN114988912A (en) * | 2022-07-13 | 2022-09-02 | 华北水利水电大学 | Preparation method of polymer foam concrete for filling cold-formed thin-wall steel |
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