CN101269867A - Method for preparing pillared hydrotalcite and uses thereof - Google Patents
Method for preparing pillared hydrotalcite and uses thereof Download PDFInfo
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- CN101269867A CN101269867A CNA2008100606726A CN200810060672A CN101269867A CN 101269867 A CN101269867 A CN 101269867A CN A2008100606726 A CNA2008100606726 A CN A2008100606726A CN 200810060672 A CN200810060672 A CN 200810060672A CN 101269867 A CN101269867 A CN 101269867A
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- Prior art keywords
- hydrotalcite
- pillared
- houghite
- pillared hydrotalcite
- algae
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Links
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 title claims description 36
- 229910001701 hydrotalcite Inorganic materials 0.000 title claims description 36
- 229960001545 hydrotalcite Drugs 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 17
- 241000195493 Cryptophyta Species 0.000 claims abstract description 26
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 239000013535 sea water Substances 0.000 claims abstract description 7
- 150000001298 alcohols Chemical class 0.000 claims abstract description 5
- 239000013505 freshwater Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- QANIADJLTJYOFI-UHFFFAOYSA-K aluminum;magnesium;carbonate;hydroxide;hydrate Chemical compound O.[OH-].[Mg+2].[Al+3].[O-]C([O-])=O QANIADJLTJYOFI-UHFFFAOYSA-K 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000002563 ionic surfactant Substances 0.000 claims description 7
- KKXGXWCLPVABEP-UHFFFAOYSA-N 2-(tetradecylamino)acetic acid Chemical compound CCCCCCCCCCCCCCNCC(O)=O KKXGXWCLPVABEP-UHFFFAOYSA-N 0.000 claims description 5
- ANFQZLBEMATQQR-UHFFFAOYSA-N C(CCCCCCCCCCC)C(N(C(C(=O)O)(C)CC)C)(O)O Chemical compound C(CCCCCCCCCCC)C(N(C(C(=O)O)(C)CC)C)(O)O ANFQZLBEMATQQR-UHFFFAOYSA-N 0.000 claims description 5
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 5
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 235000017281 sodium acetate Nutrition 0.000 claims description 4
- 229960004249 sodium acetate Drugs 0.000 claims description 4
- 239000001632 sodium acetate Substances 0.000 claims description 4
- 239000005422 algal bloom Substances 0.000 claims description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 2
- 238000009360 aquaculture Methods 0.000 claims description 2
- 244000144974 aquaculture Species 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005189 flocculation Methods 0.000 abstract description 6
- 230000016615 flocculation Effects 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 241000192710 Microcystis aeruginosa Species 0.000 abstract description 2
- 239000002888 zwitterionic surfactant Substances 0.000 abstract 4
- 150000001450 anions Chemical class 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000004927 clay Substances 0.000 description 19
- 239000002245 particle Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910001051 Magnalium Inorganic materials 0.000 description 5
- 241000700605 Viruses Species 0.000 description 5
- 239000011229 interlayer Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229930002875 chlorophyll Natural products 0.000 description 3
- 235000019804 chlorophyll Nutrition 0.000 description 3
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 230000031018 biological processes and functions Effects 0.000 description 2
- -1 carboxylate radical Chemical class 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 230000034994 death Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241001311547 Patina Species 0.000 description 1
- 241001404107 Prorocentrum donghaiense Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000011091 sodium acetates Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a preparation method of Pillared houghite and the application thereof. Water or alcohols are added in the houghite body to be made into slurry, and zwitterionic surfactant is added, the weight ratio of the zwitterionic surfactant and the houghite body is 0.5 to 4:1, the zwitterionic surfactant and the houghite body are mixed for 0.5 to 4.0 h under the condition of the temperature being the room temperature to 100 DEG C, and the pillared houghite can be obtained through filtering, washing, drying, and crushing. The preparation method uses the characteristic that ions among the layers have the adjustability because carboxylate radical or other anions are filled among structural layers of the houghite, and inserts the zwitterionic surfactant into the layers of the houghite, thereby the positive charge density on the surface of the houghite is greatly increased, the adsorbability to algae cells with negative charges is improved, the flocculation effect to the algae is better, and the pillared houghite can be widely applied to the removal of seawater red water bloom and freshwater alga.
Description
Technical field
The present invention relates to a kind of preparation method and its usage of pillared hydrotalcite.
Background technology
The outburst of harmful algae in ocean, lake, the river (be commonly called as in seawater be red tide, be commonly called as in the fresh water be algal tufa) has become global environment problem.It not only makes water quality deterioration, anoxic, causes a large amount of fish kills, and the algae toxin that produces in the algae metabolic process can enter food chain and causes human diseases even death.In waterworks, the film treating water technological process, algae can stick to filtrate or filter membrane surface, and blocking device causes frequent back flushing; Some algae is small-sized in addition, and penetrable filter tank enters in the water supply network, influences water quality.Disclosed at present algae removal technology mainly contains chemical method, biological process, air supporting method and flocculation sedimentation.Chemical method has instant effect, advantage such as easy to operate, but chemical killing agent has certain toxicity, has problems such as secondary pollution and ecological risk; In addition, most of chemical killing agent cost height, this method economic benefit and environmental benefit are not good enough.Biological process comprises with microorganism or virus kills frustule, yet a kind of microorganism or virus often only have the single-minded activity of killing to a kind algae.Owing to cause that the algae kind of red tide or wawter bloom is various, also because the outburst of red tide and wawter bloom has suddenly, be difficult to go out to have in a large number at a certain algal species cultivation in a short time the virus of the single-minded property killed simultaneously; In addition, because algae can produce resistance and immunity to infecting of virus, same microorganism or virus are difficult to certain algae is continued the performance killing action.This method is difficult to extensive, large-scale application because of reasons such as selectivity restriction, complicated operation, cost height.The air supporting method is a kind of method with mechanical harvest, and the money that consumes again consuming time is difficult to be applied to the removing that the big area natural water body pollutes.Flocculation sedimentation comprises chemical floc and with clay sedimentation algae.Chemical floc (as composite polymeric aluminium, iron etc.) great majority have toxicity, and they have disturbed the coenosis under the state of nature, have destroyed the eubiosis, and may cause hydrobiont death, are acknowledged as to be used for natural aquatic system.The method that is widely studied in the world at present is to utilize clay and modified product flocculation thereof to remove red tide plankton, and this method is owing to aboundresources, harmless or low toxicity are praised highly.But clay must be sowed during practical application in a large number in the frustule surface all electronegative [document 1] in clay particle and the seawater usually, and big area is administered red tide and wawter bloom can cause material quantity and the excessive problem of sludge amount.The raising clay that proposes according to [document 2-5] such as Yu Zhiming is removed the clay surface modification theory of red tide plankton ability, and clay surface modification is intended to reduce the electrostatic repulsion between clay particle and frustule, increases the bridge linking effect between clay particle and algal bloom biological cell.According to the research of [document 6], utilize organic cation tensio-active agent HDTMAB modified clay mineral can make the surface electrical behavior counter-rotating of clay particle, reduce the electrostatic repulsion between clay particle and frustule, improved the ability of clay removal frustule.The modification of clay mainly is by the quaternary ammonium salt type cationic surface active modification at present, though can make the clay particle surface electric property inversion after the modification, but the density of modified clay positive surface charge is still lower, and the adsorption between modified clay particle and the frustule still remains further to be improved.How improving the removal ability of clay mineral to red tide plankton, reduce the consumption of clay, is the subject matter that this method exists.
Hydrotalcite is the anionic material that a class has laminate structure, surface band permanent positive charge, the interlayer filling carboxylate radical or other negatively charged ion, laminate element and interlayer ion have adjustable sex change.By the interlayer of amphoteric ionic surfactant insertion hydrotalcite, form the pillared hydrotalcite of stable surface band high-density positive charge, the adsorption between enhanced granule and the frustule can improve greatly ability has been removed in the flocculation of electronegative algae.
Reference
[1]Neihof?RA?and?Loeb?GI.1972.The?surface?charge?of?particulate?matterinseawater.LimnoiOceanogr.17：7-16.
[2]Yu?Z-M.?Sun?X-X?and?Song?X-X.1999.?Clay?surface?modification?and?itscoagulation?of?red?tide?organisms.Chin?Sci?Bull，44(7)：617-620.
[3]Yu?Z-M，Zou?J-Z?and?Ma?X-N.1994.Application?of?clays?to?removal?of?redtide?organisms?I.Coagulation?of?red?tide?organisms?with?clays.Chin?J?OceanolLimnol，12(3)：193-200.
[4]Yu?Z-M.Zou?J-Z?and?Ma?X-N.1994.Application?of?clays?to?removal?of?redtide?organisms?II.Coagulation?of?diferent?species?of?red?tide?organisms?withmontmorillonite?and?effect?of?clay?pretreatment.Chin?J?Oceanol?Limnol，12(4)：316-324.
[5]Yu?Z-M.Zou?J-Z?and?Ma?X-N.1995.Application?of?clays?to?removal?of?redtide?organisms?III.The?coagulation?of?Kaolin?on?red?tide?organisms.Chin?J?OceanolLimnol，13(1)：62-70.
[6]Xu?S?and?Boyd?SA.1995.Cationic?surfactant?sorption?to?a?vermiculiticsubsoil?via?hydrophobic?bonding.Environ?Sci?Techol，29：312-320.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of preparation method and its usage of pillared hydrotalcite is provided.
The preparation method of pillared hydrotalcite adds entry or alcohols is made slurries in the hydrotalcite powder, add amphoteric ionic surfactant again, the weight ratio of amphoteric ionic surfactant and hydrotalcite powder is 0.5～4:1, stir 0.5～4.0h under the temperature of room temperature～100 ℃, filtration, washing, dry, pulverizing obtain pillared hydrotalcite.
Described amphoteric ionic surfactant is empgen BB, dodecyl-dihydroxy ethyl trimethyl-glycine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl trimethyl-glycine, N-dodecyl-β-An Jibingsuan, N-(2-hydroxyethyl)-N-(2-hydroxyalkyl)-β-An Jibingsuan, N-tetradecyl glycine sodium salt or lauryl tetrahydroglyoxaline sodium-acetate.Described alcohols 1 is methyl alcohol, ethanol, Virahol or ethylene glycol.
The algae that pillared hydrotalcite is used for administering red tide of sea or fresh water algal bloom and is used to remove aquaculture, waterworks or film treating water technological process.
The present invention has utilized hydrotalcite to have laminate structure, surface band permanent positive charge, the interlayer filling carboxylate radical or other negatively charged ion, laminate element and interlayer ion have the characteristics of adjustable sex change, the density of hydrotalcite positive surface charge will have been increased between amphoteric ion type surfactivity interposed layer greatly, the some shortcomings of existing flocculation algae removal technology have been overcome, the pillared hydrotalcite of removal red tide of the present invention and algal tufa and preparation method thereof preparation technology is simple, facility investment is few, safe in utilization, effective, can be applicable to the removing that the big area natural water body pollutes.
Embodiment
The present invention is further described in conjunction with following example, but content of the present invention is not limited only to content related among the embodiment.
Embodiment 1
Add entry at 100 grams in the commercially available magnalium type hydrotalcite powder and make slurries, add 50 gram empgen BBs again, stirred 0.5 hour under the room temperature, filter then, wash, dry, pulverize the empgen BB pillared hydrotalcite.
Get and contain easily seawater 1L (the red tide plankton density 10 of curved algae of red tide
6Individual/milliliter), add the empgen BB pillared hydrotalcite to it, making the concentration of empgen BB pillared hydrotalcite in the system is 0.02g/L, shake up, leave standstill 2 hours after, the red tide easily removal of curved algae reaches 95%.
Embodiment 2
In the commercially available magnalium type hydrotalcite powder of 100 grams, add the ethylene glycol decentralized system and become slurries, add 400 gram lauryl tetrahydroglyoxaline sodium-acetates again, be heated to 100 ℃, stirred 4 hours, filter then, wash, dry, pulverize lauryl tetrahydroglyoxaline sodium-acetate pillared hydrotalcite.
Getting grows breed water 1L (the red tide plankton density 10 of Prorocentrum donghaiense
4Individual/milliliter), add lauryl tetrahydroglyoxaline sodium-acetate pillared hydrotalcite to it, make the concentration of pillared hydrotalcite in the algae liquid reach 0.01g/L, shake up, leave standstill 1.5 hours after, can kill more than 96%.
Embodiment 3
In the commercially available magnalium type hydrotalcite powder of 100 grams, add the methyl alcohol decentralized system and become slurries, add 100 gram dodecyl-dihydroxy ethyl trimethyl-glycines again, be heated to 60 ℃, stirred 1.5 hours, filter then, wash, dry, pulverize dodecyl-dihydroxy ethyl trimethyl-glycine pillared hydrotalcite.
Take from water factory's growth that water 1L (the red tide plankton density 10 of wawter bloom microcystic aeruginosa is arranged
3Individual/milliliter), add dodecyl-dihydroxy ethyl trimethyl-glycine pillared hydrotalcite to it, make the concentration of pillared hydrotalcite in the algae liquid reach 0.03g/L, shake up, leave standstill 2.5 hours after, can kill the wawter bloom microcystic aeruginosa more than 90%, the chlorophyll clearance is 85%.
Embodiment 4
In the commercially available magnalium type hydrotalcite powder of 100 grams, add the ethanol decentralized system and become slurries, add 200 gram N-tetradecyl glycine sodium salts again, be heated to 50 ℃, stirred 3 hours, filter then, wash, dry, pulverize N-tetradecyl glycine sodium salt pillared hydrotalcite.
Getting grows in the film treating water technological process water 2L (the red tide plankton density 10 of wawter bloom patina Microcystis aeruginosa
7Individual/milliliter), add N-tetradecyl glycine sodium salt pillared hydrotalcite to it, make the concentration of pillared hydrotalcite in the algae liquid reach 0.015g/L, shake up, leave standstill 1 hour after, the removal of algae reaches 95% and can reach abovely, the chlorophyll clearance is more than 70%.
Embodiment 5
In the commercially available magnalium type hydrotalcite powder of 100 grams, add the ethanol decentralized system and become slurries, add 300 gram N-dodecyl-β-An Jibingsuans again, be heated to 80 ℃, stirred 3 hours, filter then, wash, dry, pulverize N-dodecyl-β-An Jibingsuan pillared hydrotalcite.
The growth of motion competition field has easily seawater 1L (the red tide plankton density 10 of curved algae of red tide in the water intaking
6Individual/liter), add N-dodecyl-β-An Jibingsuan pillared hydrotalcite to it, make the concentration of pillared hydrotalcite in the algae liquid reach 0.05 g/L, shake up, leave standstill 0.5 hour after, the removal of algae reaches 98% and can reach abovely, the chlorophyll clearance is more than 60%.
Claims (5)
1. the preparation method of a pillared hydrotalcite, it is characterized in that in the hydrotalcite powder, adding entry or alcohols is made slurries, add amphoteric ionic surfactant again, the weight ratio of amphoteric ionic surfactant and hydrotalcite powder is 0.5～4: 1, stir 0.5～4.0h under the temperature of room temperature～100 ℃, filtration, washing, dry, pulverizing obtain pillared hydrotalcite.
2 a kind of pillared hydrotalcite preparation methods according to claim 1 is characterized in that described amphoteric ionic surfactant is empgen BB, dodecyl-dihydroxy ethyl trimethyl-glycine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl trimethyl-glycine, N-dodecyl-β-An Jibingsuan, N-(2-hydroxyethyl)-N-(2-hydroxyalkyl)-β-An Jibingsuan, N-tetradecyl glycine sodium salt or lauryl tetrahydroglyoxaline sodium-acetate.
3 a kind of pillared hydrotalcite preparation methods according to claim 1 is characterized in that described alcohols 1 is methyl alcohol, ethanol, Virahol or ethylene glycol.
4. the purposes of the pillared hydrotalcite of method preparation according to claim 1 is characterized in that pillared hydrotalcite is used to administer red tide of sea or fresh water algal bloom.
5. the purposes of the pillared hydrotalcite of method preparation according to claim 1 is characterized in that pillared hydrotalcite is used for removing the algae of aquaculture, waterworks or film treating water technological process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100606726A CN101269867A (en) | 2008-04-28 | 2008-04-28 | Method for preparing pillared hydrotalcite and uses thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100606726A CN101269867A (en) | 2008-04-28 | 2008-04-28 | Method for preparing pillared hydrotalcite and uses thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101269867A true CN101269867A (en) | 2008-09-24 |
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|---|---|---|---|
| CNA2008100606726A Pending CN101269867A (en) | 2008-04-28 | 2008-04-28 | Method for preparing pillared hydrotalcite and uses thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214076A (en) * | 2013-03-18 | 2013-07-24 | 暨南大学 | Betaine derivative modified clay, and preparation method and application thereof |
| CN104609374A (en) * | 2015-01-26 | 2015-05-13 | 广东工业大学 | Preparation method and application of layered double metal hydroxide bloom alga remover |
| CN105198078A (en) * | 2015-09-17 | 2015-12-30 | 上海大学 | Method for performing biological denitrification nitrogen removal by taking LDHs as slow-release carbon source |
| CN108609708A (en) * | 2018-04-28 | 2018-10-02 | 孙法峰 | A kind of preparation method of sewage disposal polymeric silicicacid modified hydrotalcite material |
| CN110898796A (en) * | 2019-11-27 | 2020-03-24 | 清华大学深圳国际研究生院 | Preparation method of magnetic layered double hydroxide, magnetic layered double hydroxide and application thereof |
-
2008
- 2008-04-28 CN CNA2008100606726A patent/CN101269867A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214076A (en) * | 2013-03-18 | 2013-07-24 | 暨南大学 | Betaine derivative modified clay, and preparation method and application thereof |
| CN104609374A (en) * | 2015-01-26 | 2015-05-13 | 广东工业大学 | Preparation method and application of layered double metal hydroxide bloom alga remover |
| CN105198078A (en) * | 2015-09-17 | 2015-12-30 | 上海大学 | Method for performing biological denitrification nitrogen removal by taking LDHs as slow-release carbon source |
| CN108609708A (en) * | 2018-04-28 | 2018-10-02 | 孙法峰 | A kind of preparation method of sewage disposal polymeric silicicacid modified hydrotalcite material |
| CN110898796A (en) * | 2019-11-27 | 2020-03-24 | 清华大学深圳国际研究生院 | Preparation method of magnetic layered double hydroxide, magnetic layered double hydroxide and application thereof |
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