CN108483460A - A method of using gangue be raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal - Google Patents
A method of using gangue be raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal Download PDFInfo
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- CN108483460A CN108483460A CN201810565773.2A CN201810565773A CN108483460A CN 108483460 A CN108483460 A CN 108483460A CN 201810565773 A CN201810565773 A CN 201810565773A CN 108483460 A CN108483460 A CN 108483460A
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- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
- C01B39/14—Type A
- C01B39/16—Type A from aqueous solutions of an alkali metal aluminate and an alkali metal silicate excluding any other source of alumina or silica but seeds
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- C01B39/00—Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B39/02—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
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Abstract
The invention discloses a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, first by the broken simultaneously grinding of gangue, then carries out thermal activation pretreatment, high-temperature fusion after thermal activated coal gangue and sodium carbonate mixing is obtained molten mixture；Secondly molten mixture is mixed with water under the conditions of water-soluble to dissolution sodium metasilicate, filter residue is obtained by filtration and is baked to；The filter residue after drying is sufficiently stirred with sodium hydroxide solution under the conditions of alkali soluble again, sial solution is then obtained by filtration, and be aged to obtain presoma to sial solution；Hydrothermal crystallizing processing finally is carried out to presoma, then obtains 4A zeolites after filtering, washing and drying.The synthetic method of the present invention is using gangue as raw material, high-end recycling is carried out to gangue to develop and use, and acid etching need not be carried out to gangue, reduce the secondary pollution caused by environment, silicon source need not be added in another aspect building-up process, method is simple, and operability is strong, and cost is relatively low.
Description
Technical field
The present invention relates to a kind of methods preparing 4A zeolites, and in particular to a kind of to utilize gangue for raw material two-step method hydro-thermal
The method for synthesizing 4A zeolites.
Background technology
4A zeolites are a kind of artificial zeolites of mankind's synthesis, do not generate pollution to environment, have stronger ion exchange energy
Power and absorption property all have huge application latent in the industries such as general daily, petrochemical industry, smelting and high-technology field
Power.
At present there are mainly three types of the raw materials of synthesis 4A zeolites：Chemical raw material, natural minerals and industrial waste.Chemical raw material
It is the auxiliary material for full chemistry synthetic method raw material and semi-synthesis method, mainly there is sodium hydroxide, waterglass, sulfuric acid, aluminium oxide
Deng, cost is higher, operation it is more complex.Natural minerals are with SiO2And Al2O3Mineral as main component, mainly have kaolin,
Bentonite, concave convex rod etc. are not required to supplement silicon source and silicon source can be straight wherein because kaolinic silica alumina ratio and 4A zeolites are almost the same
It is bonded into, there is relatively broad research in using raw mineral materials synthesis 4A zeolites field.Early stage such as publication number
The Chinese patent " Synthesis of 4 A zeolite with kaolinite and preparation method thereof " of CN1124716A, by after calcining metakaolin be added water,
Steam and sodium hydroxide solution carry out curing and crystallization synthesizes 4A zeolites, and method is simple, but product purity is not high, to kaolin
The relatively stringent control of raw material selection, crystallization time is shortened in later stage invention during using Synthesis of 4 A zeolite with kaolinite, addition is led
The purity for consuming energy and improving product is further reduced to agent or crystal seed etc..Cost can be reduced using natural minerals,
But mineral are selected more demanding.Industrial waste mainly has flyash, combustion ash, industrial aluminum dregs, troilite, gangue
Deng.Wherein, flyash and gangue are because containing a large amount of SiO2And Al2O3There is wide research in synthetic zeolite field.
It is alkali fusion hydrothermal synthesis method, such as Publication No. currently with the main method that gangue is Material synthesis 4A zeolites
The Chinese patent " method for preparing type A zeolite as the high temperature alkali fuse of raw material-hydrothermal crystallizing using gangue " of CN1346794A, will
Then gangue adds water, crystallization synthetic zeolite in alkali fusion agent high temperature alkali fusion in the gangue after alkali fusion, wherein needing supplement aluminium
Source adjusts silica alumina ratio；Such as a kind of Chinese patent " method of preparing A type zeolite by gangue " of Publication No. CN1631779A, will forge
Gangue after burning and alkali fusion agent pyroreaction, alkali fusion object adds aluminium salt crystallization synthetic zeolite except mending after iron through water-soluble, though this method
It is simple and easy to do, post activation silicon and aluminum source is calcined, but still need to supplement aluminium salt, ratio is difficult to control, and operability is weaker；Such as publication number
For a kind of Chinese patent " method of preparing high whiteness A-type zeolite from coal gangue " of CN101214973A, by water after gangue alkali fusion
Molten, benefit adds aluminium salt aging hydrothermal crystallizing synthetic zeolite, and complexing agent is added in crystallization process and brightens, though this method synthesizes high-purity
With the type A zeolite of high whiteness, but adding aluminium salt and complexing agent causes cost higher, and operability is weaker.
Invention content
The present invention provides a kind of method using gangue for raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, to overcome existing skill
Art there are the problem of, the present invention is using waste gangue as raw material, and using first alkali fusion, rear desiliconization, alkali soluble go out sial solution, then hydro-thermal
Synthetic method synthetic zeolite is not required to benefit and adds silicon source, control simple and easy to operate, and expanded the application value of gangue.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A method of using gangue be raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, include the following steps：
Step 1：By the broken simultaneously grinding of gangue, thermal activation pretreatment is then carried out, by thermal activated coal gangue and sodium carbonate
High-temperature fusion obtains molten mixture after mixing；
Step 2：Molten mixture is mixed with water under the conditions of water-soluble to dissolution sodium metasilicate, be obtained by filtration filter residue and by its
Drying；
Step 3：Filter residue after drying is sufficiently stirred with sodium hydroxide solution under the conditions of alkali soluble, is then obtained by filtration
Sial solution, and sial solution is aged to obtain presoma；
Step 4：Hydrothermal crystallizing is carried out at a temperature of 90~95 DEG C to presoma and handles 4~8h, then through filtering, water
Wash and obtained after drying 4A zeolites.
Further, the pretreated temperature of thermal activation is 700~800 DEG C in step 1, time 2h.
Further, the mass ratio of thermal activated coal gangue and sodium carbonate is 1 in step 1:(1.3~1.5).
Further, the temperature of step 1 high temperature melting is 830 DEG C, and the time is 1~2h.
Further, water-soluble condition is as follows in step 2：Liquid-solid ratio be 20mL/g~50mL/g, reaction time 1h, instead
It is 40 DEG C to answer temperature.
Further, alkali soluble condition is as follows in step 3：Liquid-solid ratio is 20mL/g, concentration of sodium hydroxide solution is 2.5~
3mol/L, reaction time 1h, reaction temperature are 40~60 DEG C.
Further, Aging Temperature is 60~70 DEG C in step 3, digestion time 2h.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention prepares 4A zeolites by raw material of gangue, and qualified 4A zeolites, step 1 to step 3 are in order to obtain
Gangue is fully activated, the silica alumina ratio in raw material is adjusted under conditions of without adding silicon source, first breaks gangue
Flour mill makes grain diameter uniformly and is conducive to the abundant combination with reactive material, and thermal activation is conducive to will be main in gangue
Mineral kaolinite is changed into metakaolin, and forms Na at high temperature by activator of sodium carbonate2SiO3And NaAlSiO4, the former
Soluble easily in water, the latter is soluble in lye, then will melting gangue be sufficiently mixed with water, after filtering resultant product mainly with
NaAlSiO4Based on, silica alumina ratio 1 is the optimal proportion for synthesizing 4A zeolites；On the other hand, melting gangue adds water desiliconization
Afterwards, be conducive to improve the eduction rate of aluminium in the solution in gangue, it is then that desiliconization gangue and sodium hydroxide solution is fully mixed
It closes, by NaAlSiO4It is dissolved in lye, obtains sial solution, and silica-alumina gel is obtained by ageing, finally existed using hydro-thermal method
Crystallization is carried out under crystallization condition, through filtering, is washed, is dried to obtain 4A zeolite products.Use gangue for raw material, raw material is easy to get,
And turn waste into wealth, the treatment of wastes with processes of wastes against one another is consistent with the target of environmental improvement；Gangue is avoided without carrying out acidleach pre-treatment to ring
Cause secondary pollution in border；In existing technical foundation, more steps add water desiliconization, but improve the precipitation of aluminium in gangue
Rate adds silicon source without mending, is easy to control, operability is strong.
Description of the drawings
Fig. 1 is the XRD diagram of 4A zeolites prepared by the embodiment of the present invention 1；
Fig. 2 is the XRD diagram of 4A zeolites prepared by the embodiment of the present invention 2；
Fig. 3 is the XRD diagram of 4A zeolites prepared by the embodiment of the present invention 3；
Fig. 4 is the SEM figures of 4A zeolites prepared by the embodiment of the present invention 1；
Fig. 5 is the SEM figures of 4A zeolites prepared by the embodiment of the present invention 2；
Fig. 6 is the SEM figures of 4A zeolites prepared by the embodiment of the present invention 3.
Specific implementation mode
The present invention is described in further detail below：
A method of using gangue be raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, include the following steps：
Step 1：By the broken simultaneously grinding of gangue, thermal activation is then carried out at a temperature of 700~800 DEG C and pre-processes 2h,
According to mass ratio it is 1 by thermal activated coal gangue and sodium carbonate:High-temperature fusion obtains molten mixture after (1.3~1.5) mixing,
The temperature of high temperature melting is 830 DEG C, and the time is 1~2h；
Step 2：Molten mixture is mixed with water under the conditions of water-soluble to dissolution sodium metasilicate, be obtained by filtration filter residue and by its
Drying, wherein water-soluble condition is as follows：Liquid-solid ratio is 20mL/g~50mL/g, and reaction time 1h, reaction temperature is 40 DEG C；
Step 3：Filter residue after drying is sufficiently stirred with sodium hydroxide solution under the conditions of alkali soluble, is then obtained by filtration
Sial solution, and ageing 2h is carried out at a temperature of 60~70 DEG C to sial solution and obtains presoma, wherein alkali soluble condition is as follows：
Liquid-solid ratio is 20mL/g, and concentration of sodium hydroxide solution is 2.5~3mol/L, and reaction time 1h, reaction temperature is 40~60 DEG C；
Step 4：Hydrothermal crystallizing is carried out at a temperature of 90~95 DEG C to presoma and handles 4~8h, then through filtering, water
Wash and obtained after drying 4A zeolites.
The present invention is described in further detail with reference to embodiment：
Gangue used in the embodiment of the present invention is exit of valley coal mine waste rock under Hancheng, and chemical composition is shown in Table 1.
The main chemical compositions table of 1 gangue of table
Embodiment 1
(1) coal shale in brick making is screened to 300 mesh and obtains bastard coal stone powder after drying, broken, grinding；
(2) bastard coal stone powder is placed in Muffle furnace at 750 DEG C and calcines 2h, sodium carbonate and spoil mass ratio are pressed after cooling
It is 1.3, sodium carbonate and bastard coal stone powder are placed in Muffle furnace the calcining 1h at 830 DEG C after mixing obtains melting mixing
Object；
(3) deionized water is added by liquid-solid ratio 30mL/g to molten mixture after cooling, in 40 DEG C in magnetic stirring apparatus
Lower stirring 1h, is obtained by filtration filter residue, it is dried in an oven；
(4) filter residue after drying is mixed with sodium hydroxide solution, concentration of sodium hydroxide solution 3mol/L, liquid-solid ratio is
20mL/g stirs 1h at 60 DEG C in magnetic stirring apparatus, filtrate is obtained by filtration, and filtrate is stirred 2h at 60 DEG C to be aged to obtain
Presoma；
(5) presoma that ageing obtains is placed in autoclave, in an oven after 90 DEG C, crystallization 5h, fast quickly cooling
But, through filtering, wash, be dried to obtain zeolite, characterized through Fig. 1 XRD and Fig. 4 SEM, be 4A zeolites, crystallinity 84.49%.
Embodiment 2
(1) coal shale in brick making is screened to 300 mesh and obtains bastard coal stone powder after drying, broken, grinding；
(2) bastard coal stone powder is placed in Muffle furnace at 700 DEG C and calcines 2h, sodium carbonate and spoil mass ratio are pressed after cooling
It is 1.4, sodium carbonate and bastard coal stone powder are placed in Muffle furnace the calcining 1h at 830 DEG C after mixing obtains melting mixing
Object；
(3) deionized water is added by liquid-solid ratio 20mL/g to molten mixture after cooling, in 40 DEG C in magnetic stirring apparatus
Lower stirring 1h, is obtained by filtration filter residue, it is dried in an oven；
(4) filter residue after drying is mixed with sodium hydroxide solution, concentration of sodium hydroxide solution 2.8mol/L, liquid-solid ratio
For 20mL/g, 1h is stirred at 40 DEG C in magnetic stirring apparatus, filtrate is obtained by filtration, filtrate is stirred 2h at 70 DEG C to be aged
To presoma；
(5) presoma that ageing obtains is placed in autoclave, in an oven after 93 DEG C, crystallization 4h, fast quickly cooling
But, through filtering, wash, be dried to obtain zeolite, characterized through Fig. 2 XRD and Fig. 5 SEM, be 4A zeolites, crystallinity 87.13%.
Embodiment 3
(1) coal shale in brick making is screened to 300 mesh and obtains bastard coal stone powder after drying, broken, grinding；
(2) bastard coal stone powder is placed in Muffle furnace at 800 DEG C and calcines 2h, sodium carbonate and spoil mass ratio are pressed after cooling
It is 1.5, sodium carbonate and bastard coal stone powder are placed in Muffle furnace the calcining 2h at 830 DEG C after mixing obtains melting mixing
Object；
(3) deionized water is added by liquid-solid ratio 50mL/g to molten mixture after cooling, in 40 DEG C in magnetic stirring apparatus
Lower stirring 1h, is obtained by filtration filter residue, it is dried in an oven；
(4) filter residue after drying is mixed with sodium hydroxide solution, concentration of sodium hydroxide solution 2.5mol/L, liquid-solid ratio
For 20mL/g, 1h is stirred at 50 DEG C in magnetic stirring apparatus, filtrate is obtained by filtration, filtrate is stirred 2h at 65 DEG C to be aged
To presoma；
(5) presoma that ageing obtains is placed in autoclave, in an oven after 95 DEG C, crystallization 8h, fast quickly cooling
But, through filtering, wash, be dried to obtain zeolite, characterized through Fig. 3 XRD and Fig. 6 SEM, be 4A zeolites, crystallinity 75.44%.
Claims (7)
1. a kind of utilizing the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, which is characterized in that include the following steps：
Step 1：By the broken simultaneously grinding of gangue, thermal activation pretreatment is then carried out, by thermal activated coal gangue and sodium carbonate mixing
High-temperature fusion obtains molten mixture afterwards；
Step 2：Molten mixture is mixed with water under the conditions of water-soluble to dissolution sodium metasilicate, filter residue is obtained by filtration and is baked to；
Step 3：Filter residue after drying is sufficiently stirred with sodium hydroxide solution under the conditions of alkali soluble, sial is then obtained by filtration
Solution, and sial solution is aged to obtain presoma；
Step 4：Carry out at a temperature of 90~95 DEG C hydrothermal crystallizing to presoma and handle 4~8h, then through filtering, washing and
4A zeolites are obtained after drying.
2. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that the pretreated temperature of thermal activation is 700~800 DEG C in step 1, time 2h.
3. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that the mass ratio of thermal activated coal gangue and sodium carbonate is 1 in step 1:(1.3~1.5).
4. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that the temperature of step 1 high temperature melting is 830 DEG C, and the time is 1~2h.
5. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that water-soluble condition is as follows in step 2：Liquid-solid ratio is 20mL/g~50mL/g, reaction time 1h, reaction temperature 40
℃。
6. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that alkali soluble condition is as follows in step 3：Liquid-solid ratio is 20mL/g, and concentration of sodium hydroxide solution is 2.5~3mol/L, reaction
Time is 1h, and reaction temperature is 40~60 DEG C.
7. it is according to claim 1 a kind of using the method that gangue is raw material two-step method Synthesis of 4 A-type Zeolite by Hydrothermal, it is special
Sign is that Aging Temperature is 60~70 DEG C in step 3, digestion time 2h.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205640A (en) * | 2018-11-27 | 2019-01-15 | 魏星 | A method of zeolitization granular materials is prepared by washing gangue |
| CN110395745A (en) * | 2019-09-04 | 2019-11-01 | 沈阳建筑大学 | A kind of P-A type molecular sieve and preparation method thereof prepared with self-igniting coal gangue |
| WO2020243770A1 (en) * | 2019-06-05 | 2020-12-10 | The University Of Queensland | Synthesis of adsorption materials |
| CN113307282A (en) * | 2021-06-25 | 2021-08-27 | 太原理工大学 | Method for synthesizing sodalite zeolite molecular sieve from coal gangue solid waste |
| CN113603111A (en) * | 2021-08-23 | 2021-11-05 | 中国科学院宁波材料技术与工程研究所 | 4A zeolite with adjustable oxygen vacancy content and preparation method and application thereof |
| CN114180588A (en) * | 2021-12-01 | 2022-03-15 | 山西大学 | Method for preparing magnetic zeolite by using red mud in cooperation with carbon-containing aluminum-silicon waste |
| CN114433014A (en) * | 2020-10-31 | 2022-05-06 | 中国石油化工股份有限公司 | Preparation method of 5A molecular sieve adsorbent |
| CN114988421A (en) * | 2022-05-23 | 2022-09-02 | 陕西科技大学 | Method for preparing sodalite or faujasite by utilizing coal gangue |
| CN115231585A (en) * | 2022-08-17 | 2022-10-25 | 内蒙古大学 | Method for reconstructing and synthesizing analcime mesoporous material by utilizing coal gangue |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346794A (en) * | 2001-09-24 | 2002-05-01 | 复旦大学 | High-temp alkali fusing-hydrothermal crystallizing process for preparing A-type zeolite from coal gangue |
| CN1631779A (en) * | 2004-12-07 | 2005-06-29 | 中国日用化学工业研究院 | Method for preparing A type zeolite by gangue |
| CN1669927A (en) * | 2005-02-03 | 2005-09-21 | 孙双虎 | Method for preparing nano 4A zeolite using gangue as raw material |
| KR20100080246A (en) * | 2008-12-31 | 2010-07-08 | 정영 | Manufacturing process of the adsorbents made from coal wastes and the adsorbents manufactured by the process |
| CN101850987A (en) * | 2010-06-08 | 2010-10-06 | 孙晓东 | Method for preparing nano-scale 4A zeolite by using coal gangue as raw material |
-
2018
- 2018-06-04 CN CN201810565773.2A patent/CN108483460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346794A (en) * | 2001-09-24 | 2002-05-01 | 复旦大学 | High-temp alkali fusing-hydrothermal crystallizing process for preparing A-type zeolite from coal gangue |
| CN1631779A (en) * | 2004-12-07 | 2005-06-29 | 中国日用化学工业研究院 | Method for preparing A type zeolite by gangue |
| CN1669927A (en) * | 2005-02-03 | 2005-09-21 | 孙双虎 | Method for preparing nano 4A zeolite using gangue as raw material |
| KR20100080246A (en) * | 2008-12-31 | 2010-07-08 | 정영 | Manufacturing process of the adsorbents made from coal wastes and the adsorbents manufactured by the process |
| CN101850987A (en) * | 2010-06-08 | 2010-10-06 | 孙晓东 | Method for preparing nano-scale 4A zeolite by using coal gangue as raw material |
Non-Patent Citations (3)
| Title |
|---|
| XIAOSONG HU ET AL: "＂Preparation of 4A-zeolite-based Ag nanoparticle composite catalyst and research of the catalytic properties＂", 《RSC ADVANCES》 * |
| 杨建利: "＂煤矸石制备4A分子筛的研究＂", 《西安科技大学学报》 * |
| 王倩: "＂煤矸石合成4A沸石及其对含氟废水的吸附研究＂", 《中国优秀硕士学位论文全文数据库 工程科技 Ⅰ辑》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205640A (en) * | 2018-11-27 | 2019-01-15 | 魏星 | A method of zeolitization granular materials is prepared by washing gangue |
| WO2020243770A1 (en) * | 2019-06-05 | 2020-12-10 | The University Of Queensland | Synthesis of adsorption materials |
| JP2022540312A (en) * | 2019-06-05 | 2022-09-15 | ゼオテック リミテッド | Synthesis of adsorbents |
| CN113924272A (en) * | 2019-06-05 | 2022-01-11 | 雷奥技术公司 | Synthesis of adsorbent Material |
| CN110395745A (en) * | 2019-09-04 | 2019-11-01 | 沈阳建筑大学 | A kind of P-A type molecular sieve and preparation method thereof prepared with self-igniting coal gangue |
| CN114433014A (en) * | 2020-10-31 | 2022-05-06 | 中国石油化工股份有限公司 | Preparation method of 5A molecular sieve adsorbent |
| CN114433014B (en) * | 2020-10-31 | 2023-07-28 | 中国石油化工股份有限公司 | Preparation method of 5A molecular sieve adsorbent |
| CN113307282A (en) * | 2021-06-25 | 2021-08-27 | 太原理工大学 | Method for synthesizing sodalite zeolite molecular sieve from coal gangue solid waste |
| CN113603111B (en) * | 2021-08-23 | 2022-01-04 | 中国科学院宁波材料技术与工程研究所 | 4A zeolite with adjustable oxygen vacancy content and preparation method and application thereof |
| CN113603111A (en) * | 2021-08-23 | 2021-11-05 | 中国科学院宁波材料技术与工程研究所 | 4A zeolite with adjustable oxygen vacancy content and preparation method and application thereof |
| CN114180588A (en) * | 2021-12-01 | 2022-03-15 | 山西大学 | Method for preparing magnetic zeolite by using red mud in cooperation with carbon-containing aluminum-silicon waste |
| CN114988421A (en) * | 2022-05-23 | 2022-09-02 | 陕西科技大学 | Method for preparing sodalite or faujasite by utilizing coal gangue |
| CN115231585A (en) * | 2022-08-17 | 2022-10-25 | 内蒙古大学 | Method for reconstructing and synthesizing analcime mesoporous material by utilizing coal gangue |
| CN115231585B (en) * | 2022-08-17 | 2023-04-11 | 内蒙古大学 | Method for reconstructing and synthesizing analcime mesoporous material by utilizing coal gangue |
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