CN102397776A - Molecular sieve with controllable adsorption rate and production method thereof - Google Patents
Molecular sieve with controllable adsorption rate and production method thereof Download PDFInfo
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- CN102397776A CN102397776A CN201110324294XA CN201110324294A CN102397776A CN 102397776 A CN102397776 A CN 102397776A CN 201110324294X A CN201110324294X A CN 201110324294XA CN 201110324294 A CN201110324294 A CN 201110324294A CN 102397776 A CN102397776 A CN 102397776A
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- molecular sieve
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Abstract
The invention discloses an adsorption rate control technology for a molecular sieve and a production method. The production method is characterized by comprising the following steps of: mixing 75-80 parts by weight of 500-mesh zeolite micro mist, 18-22 parts by weight of 98-99 percent 325-mesh attapulgite powder and 1-1.5 parts by weight of carboxymethyl cellulose or lignin by stirring; performing spray granulation and shaping in a granulator; coating a layer of 325-mesh attapulgite powder on the surface of a shaped product in an amount which is the same as the remaining amount of the attapulgite powder; and drying with drying equipment, and calcining with calcining equipment.
Description
Technical field
The invention belongs to a kind of molecular sieve adsorption rate control techniques, particularly a kind of molecular sieve and production method of controlling the rate of adsorption.
Background technology
In recent years, along with the develop rapidly of China's economic construction, chemical industry was a dark horse, and came out top.Molecular sieve is as the carrier of high-efficiency adsorbent and catalyst, and demand grows with each passing day.The manufacturing technology of molecular sieve reaches its maturity; But molecular sieve in use remains in certain problem; For example molecular sieve is used for adsorption moisture in the double glazing, often because the constructing operation process time is long, causes to be exposed to the outer airborne excess moisture of molecular sieve adsorption; And the result is that adsorbance is not enough in double glazing, influences the smooth completion of construction even influences construction quality.
Summary of the invention
The purpose of this invention is to provide
OneKind control the rate of adsorption molecular sieve and production method, can realize control to molecular sieve adsorption speed, be molecular sieve under the prerequisite that does not influence the overall adsorption amount, slow down adsorption rate, for operating personnel win the operating time, and accomplish artificially controlled.Control method is the mass ratio of adjustment coating attapulgite.
The molecular sieve of the control rate of adsorption provided by the invention, its material composition part by weight is following:
500 order zeolite micro mist 75-80,
325 order attapulgite 18-22,
Carboxymethyl cellulose or lignin 1-1.5.
Molecular sieve provided by the invention is inhaled production method: earlier 98-99% the 325 order attapulgites of the 500 order zeolite micro mists of raw material weight ratio 75-80, raw material weight ratio 18-22 and carboxymethyl cellulose or the lignin of raw material weight ratio 1-1.5 are mixed; Mist projection granulating moulding in comminutor; Coat one deck 325 order attapulgites on the surface of moulding article then; Its amount is the surplus of attapulgite, then through drying equipment carry out drying, roasting apparatus carries out roasting.
Principle: zeolite is the nano adsorption material in three-dimensional aperture, and its rate of adsorption is directly proportional with pore volume, and attapulgite is the two-dimensional nano sorbing material, and the rate of adsorption is slow than zeolite.After the molecular sieve surface coated attapulgite, molecular sieve utilized its absorption polarity slowly to get in the crystalline substance bag aperture of molecular sieve through the nano-pore of attapulgite, does not influence the adsorbance of molecular sieve, but has slowed down adsorption rate.
Advantage of the present invention is: technology is simple, accomplish the control rate of adsorption in the one-shot forming process and increase by two kinds of technologies of molecular sieve surface mechanical strength, and the technology complete process is environmentally friendly.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
The specific embodiment
The molecular sieve of the preparation control rate of adsorption, its material composition weight is following:
500 order zeolite micro mist 75-80 kilograms,
Carboxymethyl cellulose or lignin (pore creating material) 1-1.5 kilogram,
325 order attapulgite 18-22 kilograms.
See Fig. 1; Production method is following: earlier with 500 order zeolite micro mists of 75-80 kilogram, 98-99% part by weight part of 18-22 kilogram 325 order attapulgites, the carboxymethyl cellulose or the lignin that reach the 1-1.5 kilogram mix, and (spray film is a water in mist projection granulating moulding in comminutor; Adopt conventional prilling to carry out); Coat one deck 325 order attapulgites on the surface of moulding article then, its amount is the surplus of attapulgite, carries out drying through drying equipment then; Baking temperature is 100 ℃, time 2h; Carry out roasting through roasting apparatus at last, 600 ℃ of sintering temperatures, time 2h.
The rate of adsorption contrast that the molecular sieve of the control rate of adsorption coats before and after the attapulgite sees attached list 1:
Subordinate list 1
Contrast before and after the absorption control
| Project | Sample 1 | Sample 2 | Sample 3 | Sample 4 |
| Coat the preceding adsorption time (h) of attapulgite | 2 | 2 | 2.5 | 2.5 |
| Adsorption time (h) behind the coating attapulgite | 3 | 3.5 | 4 | 5 |
Claims (3)
1. molecular sieve that controls the rate of adsorption is characterized in that the material composition part by weight is following:
500 order zeolite micro mist 75-80,
Carboxymethyl cellulose or lignin 1-1.5,
325 order attapulgite 18-22.
2. the production method of the molecular sieve of a control rate of adsorption as claimed in claim 1; It is characterized in that: earlier 98-99% the 325 order attapulgites of the 500 order zeolite micro mists of raw material weight ratio 75-80, raw material weight ratio 18-22 and carboxymethyl cellulose or the lignin of raw material weight ratio 1-1.5 are mixed; Mist projection granulating moulding in comminutor; Coat one deck 325 order attapulgites on the surface of moulding article then; Its amount is the surplus of attapulgite, then through drying equipment carry out drying, roasting apparatus carries out roasting.
3. the production method of the molecular sieve of the control rate of adsorption according to claim 2 is characterized in that: baking temperature is 100 ℃, time 2h; 600 ℃ of sintering temperatures, time 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110324294 CN102397776B (en) | 2011-10-24 | 2011-10-24 | Production method of molecular sieve with controllable adsorption rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110324294 CN102397776B (en) | 2011-10-24 | 2011-10-24 | Production method of molecular sieve with controllable adsorption rate |
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| Publication Number | Publication Date |
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| CN102397776A true CN102397776A (en) | 2012-04-04 |
| CN102397776B CN102397776B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110324294 Expired - Fee Related CN102397776B (en) | 2011-10-24 | 2011-10-24 | Production method of molecular sieve with controllable adsorption rate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219590A (en) * | 1961-08-01 | 1965-11-23 | Union Carbide Corp | Bonded molecular sieves |
| CN1554447A (en) * | 2003-12-26 | 2004-12-15 | 杜建中 | Super fine active compound adsorptive indoor air purifying agent |
| CN1638861A (en) * | 2002-01-22 | 2005-07-13 | 奇奥凯姆有限责任公司 | Process for production of molecular sieve adsorbent blends |
| CN101524639A (en) * | 2009-04-23 | 2009-09-09 | 中国海洋石油总公司 | Prepartion method of high-intensity absorbent |
-
2011
- 2011-10-24 CN CN 201110324294 patent/CN102397776B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3219590A (en) * | 1961-08-01 | 1965-11-23 | Union Carbide Corp | Bonded molecular sieves |
| CN1638861A (en) * | 2002-01-22 | 2005-07-13 | 奇奥凯姆有限责任公司 | Process for production of molecular sieve adsorbent blends |
| CN1554447A (en) * | 2003-12-26 | 2004-12-15 | 杜建中 | Super fine active compound adsorptive indoor air purifying agent |
| CN101524639A (en) * | 2009-04-23 | 2009-09-09 | 中国海洋石油总公司 | Prepartion method of high-intensity absorbent |
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| CN102397776B (en) | 2013-08-07 |
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