CN104591199A - Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid - Google Patents
Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid Download PDFInfo
- Publication number
- CN104591199A CN104591199A CN201410817672.1A CN201410817672A CN104591199A CN 104591199 A CN104591199 A CN 104591199A CN 201410817672 A CN201410817672 A CN 201410817672A CN 104591199 A CN104591199 A CN 104591199A
- Authority
- CN
- China
- Prior art keywords
- modified montmorillonoid
- montmorillonoid
- active agent
- compound surfactant
- surface active
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention relates to a method for modifying montmorillonoid employing a mixed surfactant and prepared modified montmorillonoid. The method comprises the following specific steps: dispersing Na-montmorillonite into deionized water to prepare a montmorillonite suspension liquid with the mass concentration is 0.2-1.0%; fully stirring evenly at a room temperature; adding a dimeric surfactant, heating to 60-90 DEG C and stirring evenly; adding lauryl sodium sulfate, and further fully stirring evenly at 70-80 DEG C; and filtering, washing, drying and grinding the suspension liquid, and then sealing to obtain mixed surfactant-modified montmorillonoid. XRD measurement proves that compared with a single surfactant, the composite surfactant system is capable of effectively expanding the interlayer spacing of the montmorillonoid to 3.75nm.
Description
Technical field
The present invention relates to a kind of method of modified montmorillonoid, be specifically related to a kind of method of compound surfactant modified montmorillonoid and the modified montmorillonoid of preparation.
Background technology
Polynite is a kind of earthy mineral, and the structure cell in its crystalline structure is made up of two-layer silicon-oxy tetrahedron therebetween one deck alumina octahedral, belongs to 2:1 type layered silicate.This special crystalline structure gives the character of polynite uniqueness, as large in surface polarity, cation exchange capacity (CEC) is strong, interlayer surface is moisture, is widely used in wastewater treatment, environment remediation, anti-biotic material, catalysis etc.But, have a large amount of mineral ion between cheating engaging layer and show hydrophilic oleophobic property, being unfavorable for its dispersion in polymeric matrix, therefore will carrying out organically-modified to polynite.Carry out the high polarity that organically-modified object is intended to change polynite surface, make to change lipophilicity into by wetting ability between cheating engaging layer, reduce its surface energy, make the interlamellar spacing of polynite increase (interlamellar spacing only about the 1.2nm of natural sodium-based montmorillonite) simultaneously, there is better stability, dispersiveness and absorption property, make macromolecular chain or monomer enter interlayer, thus prepare nano composite material.
Use tensio-active agent to imvite modified be that one common are machine modification mode, conventional tensio-active agent has cats product, anion surfactant and nonionogenic tenside.Current organo montmorillonite mainly using the traditional single linked list surface-active agent such as Trimethyllaurylammonium bromide, cetyl trimethylammonium bromide, octadecyldimethyl ammonium chloride as properties-correcting agent, reacts nearly 10h and just can obtain at 60 ~ 80 DEG C.Its long reaction time, poor repeatability, and properties-correcting agent demand is large, the unfavorable factors such as modified cheating engaging layer spacing is little limit industrial production and the application of organo montmorillonite.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of modified montmorillonoid adopting the method for compound surfactant modified montmorillonoid and prepare thus.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of method of compound surfactant modified montmorillonoid is provided, it is characterized in that, concrete steps are as follows: be scattered in by sodium-based montmorillonite in deionized water, be made into the montmorillonite suspension liquid that mass concentration is 0.2 ~ 1.0%, at room temperature stir, then Gemini surface active agent is added, be warming up to 60 ~ 90 DEG C to stir, then sodium lauryl sulphate (SDS) is added, continue to stir at 70 ~ 80 DEG C, then by suspension filtered, washing, drying, then grind, sealing obtains compound surfactant modified montmorillonoid
Described Gemini surface active agent molecular structural formula is as follows:
By such scheme, the cation exchange capacity of described sodium-based montmorillonite is 80 ~ 120meq/100g.
By such scheme, the concentration of Gemini surface active agent in montmorillonite suspension liquid is 0.001 ~ 0.01mol/L.
By such scheme, described 60 ~ 90 DEG C of churning time are 2 ~ 3h.
By such scheme, the mol ratio of described sodium lauryl sulphate and Gemini surface active agent is 0.1 ~ 1:1.
Preferably, the mol ratio of SDS and Gemini surface active agent is 0.5:1.
By such scheme, described 70 ~ 80 DEG C of churning time are 3 ~ 5h.
By such scheme, described washing, drying conditions for using deionized water and absolute ethanol washing 2 ~ 4 times successively, and in 70 ~ 80 DEG C of drying 12 ~ 24h.
Present invention also offers the modified montmorillonoid prepared according to aforesaid method, its interlamellar spacing is 1.92 ~ 3.75nm.
Principle of the present invention is: the positively charged ion between the positively charged ion elder generation of Gemini surface active agent and cheating engaging layer exchanges, then SDS is added, by electrostatic attraction and the cohesive force of hydrophobic alkyl in water of interlayer cation, SDS is entered between cheating engaging layer, thus interlamellar spacing is strengthened further.
Beneficial effect of the present invention is: the present invention take sodium-based montmorillonite as raw material, with the Gemini surface active agent independently synthesized and SDS compound system for intercalator, shows good intercalation effect, increases the interlamellar spacing of polynite further.Thus, organism is introduced interlayer and is obtained organo montmorillonite by the present invention, make it surface-hydrophobicized, there is good expansion character, improve interface polarity and the chemical micro-environment of inorganics polynite simultaneously, define the wide-aperture matrix material can receiving larger organic molecule and group, widen the use range of polynite.
Preparation technology of the present invention is simple, and easy handling is with low cost, reproducible, is convenient to industrial production and applies.
Accompanying drawing explanation
The XRD spectra of the modified montmorillonoid of Fig. 1 prepared by comparative example 1-2 of the present invention and embodiment 1-4.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is described in further detail.
The cation exchange capacity of the embodiment of the present invention and comparative example sodium-based montmorillonite used is 80 ~ 120meq/100g, and Gemini surface active agent molecular structural formula used is as follows:
Comparative example 1
0.8g sodium-based montmorillonite is placed in 100mL round-bottomed flask, add 100mL deionized water, stir 1 hour, then add the Gemini surface active agent of 0.72mmol (622mg), under the water temperature of 75 DEG C, vigorous stirring 4 hours, then filters, isolated solid is used successively 50mL deionized water and 50mL absolute ethanol washing 2 times, gained solid is dry 12h at 70 DEG C, then grinds, and sealing obtains the independent modified montmorillonoid of Gemini surface active agent.The interlamellar spacing recording this modified montmorillonoid with XRD is 2.51nm, and XRD figure is as shown in curve e in Fig. 1.
Comparative example 2
Be stir 1 hour in the hydrochloric acid soln of 3 in 20mLpH value by 0.8g sodium-based montmorillonite, temperature controls at 75 DEG C, then 0.72mmol (207.64mg) SDS is added again, continue vigorous stirring 4 hours at 75 DEG C, then filter, isolated solid is used successively 50mL deionized water and 50mL absolute ethanol washing 2 times, gained solid is dry 12h at 70 DEG C, then grind, sealing obtains the independent modified montmorillonoid of SDS.The interlamellar spacing recording this modified montmorillonoid with XRD is 1.49nm, and XRD figure is as shown in curve f in Fig. 1.
Embodiment 1
0.8g sodium-based montmorillonite is dispersed in 100mL deionized water, be made into uniform montmorillonite suspension liquid, at room temperature stir 12h, be made into uniform suspension, then the Gemini surface active agent of 0.72mmol is added, vigorous stirring 2 hours at the temperature of 75 DEG C, then 0.072mmol (20.76mg) SDS is added, continue vigorous stirring 4 hours at 75 DEG C, by suspension filtered, isolated modified montmorillonoid is used successively 50mL deionized water and 50mL absolute ethanol washing 3 times, gained solid is dry 18h at 70 DEG C, then grind, sealing obtains compound surfactant modified montmorillonoid.The interlamellar spacing recording this modified montmorillonoid with XRD is 2.57nm, and XRD figure is as shown in curve a in Fig. 1.
Embodiment 2
0.8g sodium-based montmorillonite is dispersed in 80mL deionized water, be made into uniform montmorillonite suspension liquid, at room temperature stir 12h, be made into uniform suspension, then the Gemini surface active agent of 0.72mmol is added, vigorous stirring 3 hours at the temperature of 60 DEG C, then 0.144mmol (41.54mg) SDS is added, continue vigorous stirring 5 hours at 70 DEG C, by suspension filtered, isolated modified montmorillonoid is used successively 50mL deionized water and 50mL absolute ethanol washing 3 times, gained solid is dry 18h at 70 DEG C, then grind, sealing obtains compound surfactant modified montmorillonoid.The interlamellar spacing recording this modified montmorillonoid with XRD is 2.61nm, and XRD figure is as shown in curve b in Fig. 1.
Embodiment 3
0.8g sodium-based montmorillonite is dispersed in 100mL deionized water, be made into uniform montmorillonite suspension liquid, at room temperature stir 12h, be made into uniform suspension, then the Gemini surface active agent of 0.72mmol is added, vigorous stirring 2 hours at the temperature of 75 DEG C, then 0.36mmol (103.82mg) SDS is added, continue vigorous stirring 4 hours at 75 DEG C, by suspension filtered, isolated modified montmorillonoid is used successively 50mL deionized water and 50mL absolute ethanol washing 4 times, gained solid is dry 24h at 70 DEG C, then grind, sealing obtains compound surfactant modified montmorillonoid.The interlamellar spacing recording this modified montmorillonoid with XRD is 3.75nm, and XRD figure is as shown in Fig. 1 curve c.
Embodiment 4
0.8g sodium-based montmorillonite is dispersed in 400mL deionized water, be made into uniform montmorillonite suspension liquid, at room temperature stir 12h, be made into uniform suspension, then the Gemini surface active agent of 0.72mmol is added, vigorous stirring 2 hours at the temperature of 90 DEG C, then 0.72mmol (207.64mg) SDS is added, continue vigorous stirring 3 hours at 80 DEG C, by suspension filtered, isolated modified montmorillonoid is used successively 50mL deionized water and 50mL absolute ethanol washing 2 times, gained solid is dry 12h at 80 DEG C, then grind, sealing obtains compound surfactant modified montmorillonoid.The interlamellar spacing recording this modified montmorillonoid with XRD is 1.92nm, and XRD figure is as shown in curve d in Fig. 1.
Be illustrated in figure 1 the XRD spectra of the modified montmorillonoid prepared by comparative example 1-2 of the present invention and embodiment 1-4, as can be seen from Figure, when adopting single tensio-active agent to carry out modification to polynite, the interlamellar spacing of gained modified montmorillonoid is 1.49nm or 2.51nm, there is less change, not remarkable relative to interlamellar spacing (about the 1.2nm) modified effect of natural sodium-based montmorillonite, and adopt compound surfactant modified, the d of polynite
001diffraction peak change to lower 2 θ values, this means that tensio-active agent embedded in polynite middle layer, cause it to expand, interlamellar spacing can reach 3.75nm, illustrates that compound system more effectively can expand the interlamellar spacing of polynite.
In addition, as can be seen from Figure, the interlamellar spacing of modified montmorillonoid larger than the interlamellar spacing of SDS modified montmorillonoid (curve f) in curve d, but on the contrary less than the interlamellar spacing being used alone Gemini promoting agent modified montmorillonoid (curve e), major cause be surfactant compound ratio improper caused by, adopt appropriate anion surfactant SDS can enter polynite with cats product (Gemini surface active agent), increase cheating engaging layer spacing, but along with anionic surfactant dose increases, neutralizing effect between male-female ionic surface active agent is larger than the ion exchange between itself and polynite, cloudy, when cats product compound proportion exceeds 1:1 in molar ratio, unnecessary SDS just produces with Gemini surface active agent and precipitates, cause the loss of interlayer Gemini surface active agent, cheating engaging layer spacing can reduce on the contrary.Preferred ratio is SDS: Gemini surface active agent mol ratio is 0.5:1.
Claims (8)
1. the method for a compound surfactant modified montmorillonoid, it is characterized in that, concrete steps are as follows: be scattered in by sodium-based montmorillonite in deionized water, be made into the montmorillonite suspension liquid that mass concentration is 0.2 ~ 1.0%, at room temperature stir, then Gemini surface active agent is added, be warming up to 60 ~ 90 DEG C to stir, then sodium lauryl sulphate is added, continue to stir at 70 ~ 80 DEG C, then by suspension filtered, washing, dry, then grind, sealing obtains compound surfactant modified montmorillonoid, described Gemini surface active agent molecular structural formula is as follows:
2. the method for compound surfactant modified montmorillonoid according to claim 1, is characterized in that, the cation exchange capacity of described sodium-based montmorillonite is 80 ~ 120meq/100g.
3. the method for compound surfactant modified montmorillonoid according to claim 1, is characterized in that, the concentration of described Gemini surface active agent in montmorillonite suspension liquid is 0.001 ~ 0.01mol/L.
4. the method for compound surfactant modified montmorillonoid according to claim 1, is characterized in that, described 60 ~ 90 DEG C of churning time are 2 ~ 3h.
5. the method for compound surfactant modified montmorillonoid according to claim 1, is characterized in that, the mol ratio of described sodium lauryl sulphate and Gemini surface active agent is 0.1 ~ 1:1.
6. according to the method for compound surfactant modified montmorillonoid according to claim 1, it is characterized in that, described 70 ~ 80 DEG C of churning time are 3 ~ 5h.
7. the method for compound surfactant modified montmorillonoid according to claim 1, is characterized in that, described washing, drying conditions for using deionized water and absolute ethanol washing 2 ~ 4 times successively, and in 70 ~ 80 DEG C of drying 12 ~ 24h.
8. the modified montmorillonoid prepared of the arbitrary described method of claim 1-7, is characterized in that: interlamellar spacing is 1.92 ~ 3.75nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817672.1A CN104591199A (en) | 2014-12-24 | 2014-12-24 | Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817672.1A CN104591199A (en) | 2014-12-24 | 2014-12-24 | Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104591199A true CN104591199A (en) | 2015-05-06 |
Family
ID=53117320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410817672.1A Pending CN104591199A (en) | 2014-12-24 | 2014-12-24 | Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104591199A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670822A (en) * | 2015-12-30 | 2016-06-15 | 广州市南大实业有限公司 | Detergent powder, and preparation method and application thereof |
| CN105907265A (en) * | 2016-07-07 | 2016-08-31 | 合肥市燕美粉末涂料有限公司 | High-temperature resistant montmorillonite intercalative polymerization modified epoxy resin-based powder coating and preparation method thereof |
| CN106008255A (en) * | 2016-05-12 | 2016-10-12 | 中国石油大学(北京) | Quaternary ammonium salt type Gemini surface active agent and preparation, product and application thereof |
| CN107266799A (en) * | 2017-07-20 | 2017-10-20 | 芜湖瑞德机械科技有限公司 | It is a kind of based on imvite modified corrosion-resistant seal and preparation method thereof |
| CN107629297A (en) * | 2017-10-30 | 2018-01-26 | 武汉工程大学 | A kind of polyethylene/polystyrene/organic modification montmonrillonite composite and preparation method thereof |
| CN107698844A (en) * | 2017-10-13 | 2018-02-16 | 武汉工程大学 | A kind of Gemini surface active organic modification montmonrillonite/composite polyethylene material and preparation method thereof |
| CN108624099A (en) * | 2018-06-04 | 2018-10-09 | 合肥博创机械制造有限公司 | A kind of equipment anticorrosive paint and preparation method thereof |
| CN108654703A (en) * | 2017-03-31 | 2018-10-16 | 南京理工大学 | A kind of preparation method of Gemini surface active agent pillared modification montmorillonite |
| CN109364885A (en) * | 2018-11-24 | 2019-02-22 | 烟台大学 | Sodium carboxymethylcellulose-collagen-montmorillonite Composite Aspergillus flavus adsorbent material preparation method |
| CN113880634A (en) * | 2021-09-30 | 2022-01-04 | 甘自宇 | Fermentation type amino acid liquid fertilizer containing humic acid synergist |
| CN114497707A (en) * | 2022-01-27 | 2022-05-13 | 上海理工大学 | High-performance low-cost composite solid electrolyte and preparation method and application thereof |
| CN115043411A (en) * | 2022-06-29 | 2022-09-13 | 北京化工大学 | Organic modification method of sodium-based montmorillonite and organic sodium-based montmorillonite |
| CN115301197A (en) * | 2022-07-15 | 2022-11-08 | 西北大学 | Composite modified montmorillonite adsorbent, preparation method and application thereof |
| CN115611290A (en) * | 2022-11-04 | 2023-01-17 | 楚能新能源股份有限公司 | Lithiated montmorillonite and preparation method thereof, composite solid electrolyte and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305005A (en) * | 1991-03-29 | 1992-10-28 | Nippon Paint Co Ltd | Hydrolyzable organometallic compound intercalated composition |
| CN102167347A (en) * | 2011-01-14 | 2011-08-31 | 华南理工大学 | Gemini surfactant modified montmorillonite preparation method by microwave radiation |
| CN102241403A (en) * | 2011-05-10 | 2011-11-16 | 中国地质大学（北京） | Anionic-cationic composite intercalation type organic montmorillonite material and preparation method thereof |
-
2014
- 2014-12-24 CN CN201410817672.1A patent/CN104591199A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305005A (en) * | 1991-03-29 | 1992-10-28 | Nippon Paint Co Ltd | Hydrolyzable organometallic compound intercalated composition |
| CN102167347A (en) * | 2011-01-14 | 2011-08-31 | 华南理工大学 | Gemini surfactant modified montmorillonite preparation method by microwave radiation |
| CN102241403A (en) * | 2011-05-10 | 2011-11-16 | 中国地质大学（北京） | Anionic-cationic composite intercalation type organic montmorillonite material and preparation method thereof |
Non-Patent Citations (8)
| Title |
|---|
| SANJEEV KUMAR ET AL.: "Influence of Spacer on Association Behavior and Thermodynamic Parameters of Dimeric Cationic Surfactants", 《J SURFACT DETERG》 * |
| 宋聪: "含酰胺基Gemini阳离子表面活性剂的合成、性能及应用", 《中国硕士学位论文全文数据库（电子期刊）工程科技Ⅰ辑》 * |
| 张秀英: "蒙脱石/丁苯橡胶纳米复合材料的制备", 《中国矿业》 * |
| 汪多仁 编著: "《绿色化工助剂》", 31 January 2006 * |
| 王俊 等: "季铵盐插层剂对有机蒙脱土结构和性质的影响", 《大庆石油学院学报》 * |
| 王毅 等: "改性剂种类对蒙脱土结构和性能的影响", 《硅酸盐学报》 * |
| 罗世宏: "含丁二酰胺季铵盐型Gemini阳离子表面活性剂的合成及性能研究", 《万方学位论文》 * |
| 许虎君 等: "酯基Gemini型季铵盐表面活性剂与SDS的相互作用", 《物理化学学报》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670822A (en) * | 2015-12-30 | 2016-06-15 | 广州市南大实业有限公司 | Detergent powder, and preparation method and application thereof |
| CN106008255B (en) * | 2016-05-12 | 2019-01-22 | 中国石油大学(北京) | A kind of Quaternary Ammonium Gemini Surfactants and its preparation, product and application |
| CN106008255A (en) * | 2016-05-12 | 2016-10-12 | 中国石油大学(北京) | Quaternary ammonium salt type Gemini surface active agent and preparation, product and application thereof |
| CN105907265A (en) * | 2016-07-07 | 2016-08-31 | 合肥市燕美粉末涂料有限公司 | High-temperature resistant montmorillonite intercalative polymerization modified epoxy resin-based powder coating and preparation method thereof |
| CN108654703A (en) * | 2017-03-31 | 2018-10-16 | 南京理工大学 | A kind of preparation method of Gemini surface active agent pillared modification montmorillonite |
| CN107266799A (en) * | 2017-07-20 | 2017-10-20 | 芜湖瑞德机械科技有限公司 | It is a kind of based on imvite modified corrosion-resistant seal and preparation method thereof |
| CN107698844A (en) * | 2017-10-13 | 2018-02-16 | 武汉工程大学 | A kind of Gemini surface active organic modification montmonrillonite/composite polyethylene material and preparation method thereof |
| CN107698844B (en) * | 2017-10-13 | 2020-08-28 | 武汉工程大学 | Gemini surfactant organic modified montmorillonite/polyethylene composite material and preparation method thereof |
| CN107629297A (en) * | 2017-10-30 | 2018-01-26 | 武汉工程大学 | A kind of polyethylene/polystyrene/organic modification montmonrillonite composite and preparation method thereof |
| CN107629297B (en) * | 2017-10-30 | 2020-08-28 | 武汉工程大学 | Polyethylene/polystyrene/organic modified montmorillonite composite material and preparation method thereof |
| CN108624099A (en) * | 2018-06-04 | 2018-10-09 | 合肥博创机械制造有限公司 | A kind of equipment anticorrosive paint and preparation method thereof |
| CN109364885A (en) * | 2018-11-24 | 2019-02-22 | 烟台大学 | Sodium carboxymethylcellulose-collagen-montmorillonite Composite Aspergillus flavus adsorbent material preparation method |
| CN109364885B (en) * | 2018-11-24 | 2021-03-12 | 烟台大学 | Preparation method of sodium carboxymethylcellulose-collagen-montmorillonite composite aspergillus flavus adsorption material |
| CN113880634A (en) * | 2021-09-30 | 2022-01-04 | 甘自宇 | Fermentation type amino acid liquid fertilizer containing humic acid synergist |
| CN114497707A (en) * | 2022-01-27 | 2022-05-13 | 上海理工大学 | High-performance low-cost composite solid electrolyte and preparation method and application thereof |
| CN115043411A (en) * | 2022-06-29 | 2022-09-13 | 北京化工大学 | Organic modification method of sodium-based montmorillonite and organic sodium-based montmorillonite |
| CN115301197A (en) * | 2022-07-15 | 2022-11-08 | 西北大学 | Composite modified montmorillonite adsorbent, preparation method and application thereof |
| CN115611290A (en) * | 2022-11-04 | 2023-01-17 | 楚能新能源股份有限公司 | Lithiated montmorillonite and preparation method thereof, composite solid electrolyte and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104591199A (en) | Method for modifying montmorillonoid employing mixed surfactant and prepared modified montmorillonoid | |
| CN105293511B (en) | A kind of easily dispersion sodium bentonite and preparation method thereof | |
| CN102249255B (en) | Anionic-nonionic composite organic montmorillonite and preparation method thereof | |
| CN114408900B (en) | Method for preparing carbon nano particles by using humic acid and application | |
| WO2020113958A1 (en) | Method for preparing high-performance iron oxide red/clay mineral hybrid pigment by mechanochemistry | |
| CN101559954B (en) | Method for preparing mesoporous molecular sieve with high hydrothermal stability by taking ionic liquid as template agent | |
| KR101309450B1 (en) | Method for controlling harmful algae using organic clay | |
| CN104944431B (en) | A kind of inorganic supermolecule electric double layer two-dimensional nano piece and preparation method thereof | |
| CN103467777A (en) | Lanthanum-based organic acid montmorillonite and water phase one-step preparation technology thereof | |
| DE69912538T3 (en) | Process for the synthesis of aluminum oxides in alkaline medium | |
| CN102730747B (en) | Method for preparing zinc oxide with different microstructures by sol-gel assisted hydrothermal process | |
| CN102408102A (en) | Preparation method of nanometer iron phosphate | |
| CN101007635A (en) | Organic-pillared vermiculite mesoporous material and its preparing process and uses | |
| CN101696033B (en) | Preparation method for synthesizing sheeted zirconia by using hydrothermal method | |
| CN101786685B (en) | Preparation method of material used for treating wastewater containing aromatic nitro-compounds | |
| CN109502679A (en) | A kind of method that powdered coal ash multi-component element collaboration utilization prepares flocculant and porous material | |
| CN103881423B (en) | A kind of easily dispersion has reactive organic clay and preparation method thereof | |
| CN103834197B (en) | Preparation method of organic montmorillonite modified by supermolecular liquid crystal polymer | |
| CN110963736B (en) | Nano gel polyaluminium type liquid alkali-free accelerator and preparation method thereof | |
| CN102220144A (en) | Preparation method of flame retardant additive | |
| CN101792165A (en) | Method for producing polymeric aluminum chloride from kaolin | |
| CN103112878A (en) | Method for preparing aluminum oxide with large specific surface area | |
| CN105819459B (en) | Hydrogen layer column saponite and its preparation method and application | |
| CN105967207A (en) | Method for constructing substrate connection-free two-dimensional Prussian Blue Analogues nano-sheets by taking layered double hydroxides as templates | |
| CN104229847A (en) | Method for synthesizing mesoporous gamma-Al2O3 by anion/cation dual-hydrolysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |