CN102602956A - Novel low-potassium-content zeolite molecular sieve complex - Google Patents
Novel low-potassium-content zeolite molecular sieve complex Download PDFInfo
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- CN102602956A CN102602956A CN2012101093540A CN201210109354A CN102602956A CN 102602956 A CN102602956 A CN 102602956A CN 2012101093540 A CN2012101093540 A CN 2012101093540A CN 201210109354 A CN201210109354 A CN 201210109354A CN 102602956 A CN102602956 A CN 102602956A
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- molecular sieve
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- 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
- C01B39/18—Type A from a reaction mixture containing at least one aluminium silicate or aluminosilicate of a clay type, e.g. kaolin or metakaolin or its exotherm modification or allophane
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- Dispersion Chemistry (AREA)
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- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a novel low-potassium-content zeolite molecular sieve composite material, wherein the material has the same selective adsorption characteristic as the traditional 3A zeolite molecular sieve material, and the potassium content is lower than that of the traditional 3A molecular sieve.
Description
Technical field
The present invention is a kind of novel low potassium content zeolite molecular sieve matrix material, is to belong to a kind of new zeolite molecular sieves compound material through modification.
Background technology
Tradition 3A molecular sieve section bar is to be got through the potassium ion exchange under certain hydrothermal condition by 4A type zeolite molecular sieve; If be section bar before IX; Promptly get after being dried roasting after the exchange; If before the IX be former powder, need the tackiness agent moulding after drying roastings such as former powder adding clay after the IX are made.Its nucleus is a sodium silicoaluminate sylvite, and its skeleton symbol is: XK
2OYNa
2O2SiO
2Al
2O
34.5H
2O, X+Y=1 wherein, for the 3A molecular sieve that obtains to have use value, the X minimum should be 0.38, the nitrogen adsorption figureofmerit (25 ℃, a standard atmospheric pressure) that indicate its selective adsorption characteristic this moment is just possibly be lower than 2 milliliters of every grams.Tradition 3A molecular sieve section bar potassium element content is high, consumed the expensive partially sylvite of a large amount of prices, and hydro-thermal ion exchange process technology is comparatively loaded down with trivial details, and it is higher to consume energy.
Summary of the invention
The objective of the invention is to obtain the low new modified molecular screen material of potassium element content, to substitute existing high potassium content molecular sieves compound material--a kind of novel 3A molecular sieve of-establishment.
It is complicated to the present invention also aims to overcome traditional 3A molecular sieve production, and the shortcoming that energy consumption is higher reduces its production cost.
The present invention is a kind of novel low potassium content zeolite molecular sieve complex body; It is a kind of low potassium content; Sodium silicoaluminate sylvite with the solid netted crystalline texture of molecular sieve; Be a kind of novel 3A molecular sieve section bar, can substitute the purposes of traditional 3A molecular sieve fully, the present invention can obtain through following method:
The former powder of 4A crystallization of molecular sieves, clay and the ionogen that contains potassium element are mixed by a certain percentage; Through the formed body that the moulding acquisition has definite shape and physical strength, roasting at a certain temperature directly obtains this novel low potassium content zeolite molecular sieve complex body then.
Wherein, clay is one or more mixtures in kaolin, smectite, wilkinite and the attapulgite.
Wherein, containing the potassium element ionogen can be that Repone K, salt of wormwood, Pottasium Hydroxide, potassium silicate, sulfuric acid acid potassium etc. contain one or more in the potassium dielectric medium arbitrarily.
Wherein, the potassium element in the ionogen accounts for whole proportioning dry weight less than 9.6%, and other proportionlitys are according to the actual needs arbitrary combination.
Skeleton symbol according to traditional 3A molecular sieve: 0.38K
2O0.62Na
2O2SiO
2Al
2O
34.5H-
2O, the minimum potassium content (weight ratio) of traditional 3A molecular sieve is 9.6%, it is 11% in relative humidity; The equilibrium adsorption water volume (weight ratio) that standard atmosphere is depressed is 21%; No matter be traditional 3A type molecular sieve, or novel 3A molecular sieve of the present invention, its section bar all contains certain tackiness agent; The zeolite nucleus in traditional 3A molecular sieve section bar in potassium element and the traditional 3A molecular sieve section bar and the capacity of equilibrium adsorption water are proportional; Potassium content is a definite coefficient with the ratio of the adsorptive value of this molecular sieve, and this coefficient is 9.6%/21%=0.457, because the potassium ion of novel molecular sieve is lower than 9.6%; So the coefficient in the novel 3A molecular sieve just should be lower than 0.457.
A kind of novel low potassium content zeolite molecular sieve complex body of the present invention, compare with existing 3A molecular sieve section bar and to have outstanding substantive distinguishing features and significant technical progress:
1. 3A molecular sieve section bar of the present invention K constituent content when assurance nitrogen adsorption rate is qualified is low, has practiced thrift a large amount of potassium resources, greatly reduces cost; 2. production technique is simple, and directly the mixed sintering granulation gets final product, and has reduced production cost and energy consumption; 3. production process does not have the liquid and waste slag produced eliminating of Denging, greatly reduces environmental pollution.
Embodiment
Case study on implementation one
The former powder of 4A crystallization of molecular sieves, clay and ionogen potassium silicate are mixed by a certain percentage, wherein potassium element content account for whole proportioning dry weight amount (weight ratio) less than 9.6%, other proportionlitys are according to the actual needs arbitrary combination.The formed body that has definite shape and physical strength through the moulding acquisition then, roasting gets final product at a certain temperature again.
Case study on implementation two
The former powder of 4A crystallization of molecular sieves, clay and ionogen Pottasium Hydroxide are mixed by a certain percentage, wherein potassium element content account for whole proportioning dry weight amount (weight ratio) less than 9.6%, other proportionlitys are according to the actual needs arbitrary combination.The formed body that has definite shape and physical strength through the moulding acquisition then, roasting gets final product at a certain temperature again.
Claims (2)
1. the present invention is a kind of novel low potassium content zeolite molecular sieve matrix material; It is characterized in that a kind of have with traditional 3A molecular sieve select the property adsorpting characteristic similar, the low potassium content sodium silicoaluminate sylvite matrix material with even A type molecular sieve mesh skeleton crystalline texture.
2. novel low potassium content zeolite molecular sieve matrix material according to claim 1; It is characterized in that under 25 ℃ and normal atmosphere conditions; Its balance nitrogen adsorption amount is less than 2 milligrams of every grams, and its potassium element content (weight ratio) with its at the ratio of relative humidity 11% and the balance water regain (weight ratio) of temperature under 25 ℃ of conditions less than 46%.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101093540A CN102602956A (en) | 2012-04-16 | 2012-04-16 | Novel low-potassium-content zeolite molecular sieve complex |
| CN201310131306.6A CN103159226B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
| CN201610093457.0A CN105800638B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101093540A CN102602956A (en) | 2012-04-16 | 2012-04-16 | Novel low-potassium-content zeolite molecular sieve complex |
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| CN102602956A true CN102602956A (en) | 2012-07-25 |
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| CN2012101093540A Pending CN102602956A (en) | 2012-04-16 | 2012-04-16 | Novel low-potassium-content zeolite molecular sieve complex |
| CN201610093457.0A Active CN105800638B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
| CN201310131306.6A Active CN103159226B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
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| CN201610093457.0A Active CN105800638B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
| CN201310131306.6A Active CN103159226B (en) | 2012-04-16 | 2013-04-16 | Low potassium type 3A zeolite molecular sieve and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159226A (en) * | 2012-04-16 | 2013-06-19 | 淄博绿能化工有限公司 | Low-potassium type 3A zeolite molecular sieve and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721673A (en) * | 2014-01-06 | 2014-04-16 | 郑州富龙新材料科技有限公司 | Preparation method of K-A molecular sieve |
| CN106365176A (en) * | 2016-08-26 | 2017-02-01 | 汇盈化学品实业(泉州)有限公司 | Preparation method of 3A molecular sieve |
| CN107720772A (en) * | 2017-09-26 | 2018-02-23 | 郑州雪山实业股份有限公司 | Special 3A G activation powder of double glazing adhesive tape and preparation method thereof |
| CN108033460A (en) * | 2017-12-26 | 2018-05-15 | 大连海鑫化工有限公司 | A kind of new 3A molecular sieves and preparation method thereof |
| CN109721072B (en) * | 2019-02-22 | 2022-05-17 | 中海油天津化工研究设计院有限公司 | Method for preparing KA type molecular sieve by solvothermal method |
| CN113184873B (en) * | 2021-04-23 | 2022-12-02 | 内蒙古超牌新材料股份有限公司 | Preparation method of molecular sieve, low-nitrogen-adsorption hollow glass drying agent and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351213B (en) * | 2011-07-21 | 2013-02-13 | 中国地质大学（武汉） | Method for preparing 3A type zeolite molecular sieve |
| CN102602956A (en) * | 2012-04-16 | 2012-07-25 | 淄博绿能化工有限公司 | Novel low-potassium-content zeolite molecular sieve complex |
-
2012
- 2012-04-16 CN CN2012101093540A patent/CN102602956A/en active Pending
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2013
- 2013-04-16 CN CN201610093457.0A patent/CN105800638B/en active Active
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159226A (en) * | 2012-04-16 | 2013-06-19 | 淄博绿能化工有限公司 | Low-potassium type 3A zeolite molecular sieve and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105800638B (en) | 2019-05-07 |
| CN103159226A (en) | 2013-06-19 |
| CN105800638A (en) | 2016-07-27 |
| CN103159226B (en) | 2016-05-25 |
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Application publication date: 20120725 |