CN1673106A - Modified red stilbite water cleaning agent - Google Patents
Modified red stilbite water cleaning agent Download PDFInfo
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- CN1673106A CN1673106A CN 200510020301 CN200510020301A CN1673106A CN 1673106 A CN1673106 A CN 1673106A CN 200510020301 CN200510020301 CN 200510020301 CN 200510020301 A CN200510020301 A CN 200510020301A CN 1673106 A CN1673106 A CN 1673106A
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- CN
- China
- Prior art keywords
- cleaning agent
- water cleaning
- modified red
- red stilbite
- stilbite
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052678 stilbite Inorganic materials 0.000 title claims abstract description 26
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 150000001875 compounds Chemical class 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 4
- 229910001761 stellerite Inorganic materials 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 12
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 12
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims description 8
- 239000010457 zeolite Substances 0.000 claims description 8
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 6
- 239000012670 alkaline solution Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 10
- 239000003513 alkali Substances 0.000 abstract description 2
- 239000000084 colloidal system Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000000746 purification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 4
- JYIBXUUINYLWLR-UHFFFAOYSA-N aluminum;calcium;potassium;silicon;sodium;trihydrate Chemical compound O.O.O.[Na].[Al].[Si].[K].[Ca] JYIBXUUINYLWLR-UHFFFAOYSA-N 0.000 description 4
- 229910052728 basic metal Inorganic materials 0.000 description 4
- 150000003818 basic metals Chemical group 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 4
- 229910001603 clinoptilolite Inorganic materials 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000002516 radical scavenger Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- UNYSKUBLZGJSLV-UHFFFAOYSA-L calcium;1,3,5,2,4,6$l^{2}-trioxadisilaluminane 2,4-dioxide;dihydroxide;hexahydrate Chemical compound O.O.O.O.O.O.[OH-].[OH-].[Ca+2].O=[Si]1O[Al]O[Si](=O)O1.O=[Si]1O[Al]O[Si](=O)O1 UNYSKUBLZGJSLV-UHFFFAOYSA-L 0.000 description 2
- 229910052676 chabazite Inorganic materials 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- -1 K + Chemical class 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910052675 erionite Inorganic materials 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052677 heulandite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052645 tectosilicate Inorganic materials 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The present invention discloses one kind of modified red stilbite water cleaning agent. The water cleaning agent is produced through the following steps: crushing red stilbite and mixing with Mg containing compound and Al containing compound; adding alkali solution into the mixture to obtain mixture colloid of pH 6-8; and drying and crystallizing the mixture to obtain the modified red stilbite water cleaning agent. The modified red stilbite water cleaning agent is used in treating domestic sewage and has COD eliminating rate higher than 75 %, toxic matter Cr ion eliminating rate higher than 95 %, being 2 times and 8 times higher compared with un-modified red stilbite water cleaning agent.
Description
(1) technical field:
The present invention relates to a kind of water purification agent, particularly a kind of modified red stilbite water cleaning agent.
(2) background technology:
Water is indispensable physical resources in human lives and the activity in production.In recent years, along with rapid economy development, the pollution of waterhead that makes discharge of industrial wastes, city domestic sewage discharging be caused is more and more serious, threatens the healthy and eubiosis of people gradually, becomes problem anxious to be solved so how to improve the water source quality preferably and purify waste water.By the pollutant reaction in water purification agent and the water source is a kind of effectively and efficiently method that purifies water, and also is a kind of important channel that purifies water.People have developed various types of scavenging agents at present, be used for removing water to human body and deleterious material of environment and impurity, to improve quality of water or to purify waste water, for example application number is: 00112850, and name is called the Chinese invention patent of " a kind of complexing water purification agent ", a kind of efficient complexing water purification agent is disclosed, it is made up of O type, K type and C type medicament, and wherein O type medicament contains Tai-Ace S 150 10-25%, ferrous sulfate 0.5-3%, sulfuric acid 0.3-1%, surplus is a water; K type medicament contains sodium hydroxide 10-30%, S-WAT 10-25%, and clorox 0.3-1%, surplus is a water; C type medicament contains S-WAT 0.3-3%, polyacrylamide 0.5-3%, and surplus is a water.This water purification agent has the pH of adjusting value, carries out the comprehensive action of redox and flocculating settling, have the characteristics of inorganic water purification agent and organic flocculants concurrently, can purify various trade effluents and city domestic water, but this scavenging agent is to be that main raw material prepares water purification agent with Tai-Ace S 150, its production cost height, and investment is big, the general basic use of medium and small producer does not rise, and because the vitriolic attribute, purifying water effect is relatively poor under the low-temperature condition, just makes that also the effect of sewage disposal is stable inadequately.Being exactly to utilize natural materials in addition---zeolite is the water purification agent of main raw material preparation, zeolite is the aluminosilicate with cellular structure, its structure type is varied, have a lot of thicknesses to differ in the structure, the form difference is various holes and duct that one dimension, two peacekeeping multidimensional are arranged, the space prosperity, the aperture is 0.3～1nm, and specific surface area is up to 400-800m2/g, and chemical general formula is M
sD
y[Al
X+2ySi
N-(x+8)O
8n]
mH
2(M is basic metal or other monovalent cation to O in the formula; D is basic metal or other divalent cation; M-D is commonly referred to as exchangable ion.Kation S i, Al and oxygen in the bracket constitute the tetrahedron screen work together, are called structural cation).The space structure elementary cell of zeolite is to be built into silicon (oxygen) tetrahedron by four Sauerstoffatoms and silicon or aluminium atomic reactor, in this tetrahedron, the valence link that has in the Sauerstoffatom does not obtain neutralization, make whole aluminum-oxygen tetrahedron have negative electricity, for keeping electric neutrality, the positive charge that lacks is by near positively charged positively charged ion such as K
+, Na
+, Ca
2+, Mg
2+Come compensation balance in alkali or alkaline-earth metal, these balance cations and water molecules combine not closely with screen work, cationic exchange very easily takes place, so these structural characteristics make zeolite have unique absorption and ion-exchange capacity, very be suitable for preparing various water-purifying materials.The current natural zeolite that is used to prepare water-purifying material, mostly be with clinoptilolite, mordenite, chabazite is that raw material carries out modification, prepare various water-purifying materials, for example application number is: 99126536, name is called the Chinese invention patent of " efficient active water purifying agent ", but a kind of scavenging agent of purifying drinking water is disclosed, it adopts clinoptilolite is the raw material manufacturing, after sulfuric acid modified, the part dealuminzation, and structural framework is constant, clinoptilolite has very big surface-area through modification, its high adsorption capacity, not only defluorinate effectively, deironing, the decolouring taste removal, all right softening of water, but this scavenging agent only is applicable to purifying drinking water, not good to the decontamination effect improving of sanitary sewage.
(3) summary of the invention:
The present invention will disclose a kind of low production cost, good, the simple modified red stilbite water cleaning agent of manufacturing process of purifying water effect.
Natural zeolite can be divided into clinoptilolite, erionite, chabazite, gonnardite, thomsonite, heulandite, stilbite etc.Stellerite is a kind of of stilbite, belong to rhombic system, originate in Guilin, reserves are bigger, and (more than 85%) of high grade, it is the aluminosilicate of a kind of aqueous basic metal or alkaline-earth metal, the tectosilicate of forming by silicon-oxy tetrahedron and aluminum-oxygen tetrahedron, the valence link of the Sauerstoffatom that has in the aluminum-oxygen tetrahedron does not obtain neutralization, makes whole aluminum-oxygen tetrahedron have negative charge, with near the positively charged ion such as the K of positively charged
+, Na
+, Ca
2+, Mg
2+Reach compensation balance in basic metal or alkaline-earth metal ions.The zeolite cavity of stellerite and hole account for 40%～50% of its volume, can form very big internal surface area, thereby can store a large amount of lewis' acids.But STABILITY OF STELLERITE IN HEAT-TREATMENT is poor, and thermal stable temperature is lower than 300 ℃, about 500 ℃, and the structure completely destroy; The stellerite acid resistance is poor in addition, and its sour steady concentration is 5%, and acid concentration is 15% o'clock structure completely destroy.Based on these characteristics, stellerite is used for synthetic A type molecular sieve, chemical additive, siccative etc. more, aspect sewage disposal, studies show that stellerite is very low for the COD clearance in the sewage, if directly be applied to the poor effect of disposing of sewage.
Therefore the present invention is by to the stellerite modification, makes it can be used for handling COD and toxic substance Cr in the sanitary sewage
6+Thereby, reach the effect that well purifies water, the manufacture method of modified red stilbite water cleaning agent of the present invention, its step is as follows:
1) stellerite is pulverized, and even with magniferous compound and aluminiferous compound; The mass ratio of wherein said stellerite and magniferous compound, aluminiferous compound is 2: 1: 0.5～2: 3: 2, and selected magniferous compound can be magniferous arbitrarily compound, for example magnesium chloride or magnesium oxide; Selected aluminiferous compound can be aluminiferous arbitrarily compound, for example aluminum chloride or Tai-Ace S 150; For making stellerite and containing magnesium and aluminum contained compound reaches mix uniformly effect preferably, generally stellerite is crushed to 20～60 orders;
2) in said mixture, add alkaline solution, its pH value is transferred to 6～8, and make mixture become colloidal state; Wherein said alkaline solution can be alkaline solution arbitrarily, for example sodium hydroxide or potassium hydroxide solution;
3) the gained mixture is carried out drying, crystallization, promptly get modified red stilbite water cleaning agent; Described drying temperature is generally 80～100 ℃, is preferably 90 ℃; Temperature generally is controlled at 240～300 ℃ when crystallization, is preferably 300 ℃; And crystallization time was generally 1～3 hour, was preferably 1.5 hours.
After adopting manufacture method of the present invention that stellerite is carried out modification, use it for the COD that handles in the sanitary sewage, clearance is greater than 75%, the toxic substance Cr in also can be used for disposing of sewage
6+, its clearance is greater than 95%, and modification aftertreatment effect is respectively 2 times and 8 times of removal effect of unmodified stellerite.And the reserves of stellerite are big, and low price is fairly simple with the production technique that its modification is handled, and also need not any complexity, large-scale equipment, so its production cost are cheap, can carry out industrialized mass production fully.
(4) embodiment:
Embodiment 1:
1) stellerite is crushed to 20 orders, and mixes with magnesium chloride and aluminum chloride; The mass ratio of stellerite of wherein selecting for use and magnesium chloride, aluminum chloride is 2: 1: 1;
2) in said mixture, add sodium hydroxide solution, its pH value is transferred to 6～8, and make mixture become colloidal state;
3) earlier the gained mixture is placed 80 ℃ of oven dry down, 240 ℃ of following crystallization are 1 hour again, promptly get modified red stilbite water cleaning agent.
Embodiment 2:
1) stellerite is crushed to 60 orders, and mixes with magnesium chloride and aluminum chloride; The mass ratio of stellerite of wherein selecting for use and magnesium chloride, aluminum chloride is 2: 3: 2;
2) in said mixture, add potassium hydroxide solution, its pH value is transferred to 6～8, and make mixture become colloidal state;
3) earlier the gained mixture is placed 100 ℃ of oven dry down, 300 ℃ of following crystallization are 1.5 hours again, promptly get modified red stilbite water cleaning agent.
Embodiment 3:
1) stellerite is crushed to 40 orders, and mixes with magnesium oxide and Tai-Ace S 150; The mass ratio of stellerite of wherein selecting for use and magnesium oxide, Tai-Ace S 150 is 2: 2: 1;
2) in said mixture, add sodium hydroxide solution, its pH value is transferred to 6～8, and make mixture become colloidal state;
3) earlier the gained mixture is placed 90 ℃ of oven dry down, 270 ℃ of following crystallization are 3 hours again, promptly get modified red stilbite water cleaning agent.
Claims (9)
1, modified red stilbite water cleaning agent, it is made by following method:
1) stellerite is pulverized, and even with magniferous compound and aluminiferous compound;
2) in said mixture, add alkaline solution, its pH value is transferred to 6～8, and make mixture become colloidal state;
3) the gained mixture is carried out drying, crystallization, promptly get modified red stilbite water cleaning agent.
2, modified red stilbite water cleaning agent according to claim 1 is characterized in that: in the step 1), the mass ratio of described stellerite and magniferous compound, aluminiferous compound is 2: 1: 0.5～2: 3: 2.
3, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: described magniferous compound is magnesium chloride or magnesium oxide.
4, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: described aluminiferous compound is aluminum chloride or Tai-Ace S 150.
5, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: described alkaline solution is sodium hydroxide solution or potassium hydroxide solution.
6, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: in the step 1), red zeolite powder is broken to 20～60 orders.
7, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: in the step 3), that mixture is dry down at 80～100 ℃.
8, modified red stilbite water cleaning agent according to claim 1 and 2 is characterized in that: in the step 3), with mixture 240～300 ℃ of following crystallization 1～3 hour.
9, modified red stilbite water cleaning agent according to claim 1 is characterized in that: in the step 3), with mixture 300 ℃ of following crystallization 1.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020301 CN1280207C (en) | 2005-01-27 | 2005-01-27 | Modified red stilbite water cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020301 CN1280207C (en) | 2005-01-27 | 2005-01-27 | Modified red stilbite water cleaning agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1673106A true CN1673106A (en) | 2005-09-28 |
| CN1280207C CN1280207C (en) | 2006-10-18 |
Family
ID=35045922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510020301 Expired - Fee Related CN1280207C (en) | 2005-01-27 | 2005-01-27 | Modified red stilbite water cleaning agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280207C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361742C (en) * | 2006-03-08 | 2008-01-16 | 桂林工学院 | Method for preparing desiccant by natural parastilbite |
| CN102423686A (en) * | 2011-11-01 | 2012-04-25 | 昆明理工大学 | Modified mordenite adsorbent and preparation method thereof |
| CN110877999A (en) * | 2019-10-11 | 2020-03-13 | 广西南宁大地肥田农业科技有限公司 | Zeolite-containing soil improvement type organic fertilizer and preparation method thereof |
-
2005
- 2005-01-27 CN CN 200510020301 patent/CN1280207C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361742C (en) * | 2006-03-08 | 2008-01-16 | 桂林工学院 | Method for preparing desiccant by natural parastilbite |
| CN102423686A (en) * | 2011-11-01 | 2012-04-25 | 昆明理工大学 | Modified mordenite adsorbent and preparation method thereof |
| CN102423686B (en) * | 2011-11-01 | 2016-02-03 | 昆明理工大学 | A kind of modified mordenite adsorbent and preparation method thereof |
| CN110877999A (en) * | 2019-10-11 | 2020-03-13 | 广西南宁大地肥田农业科技有限公司 | Zeolite-containing soil improvement type organic fertilizer and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1280207C (en) | 2006-10-18 |
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Address after: 541004 the Guangxi Zhuang Autonomous Region Guilin auxiliary Star Road, No. 9 Patentee after: CHINA NONFERROUS METAL (GUILIN)GEOLOGY AND MINING Co.,Ltd. Address before: 541004 Mineral Geology Research Institute, No. 2, subsidiary Star Road, Guilin, the Guangxi Zhuang Autonomous Region Patentee before: Guilin Research Institute of Geology for Mineral Resources |
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Granted publication date: 20061018 |