CN107758683B - A kind of preparation method of molecular sieve modified powder - Google Patents
A kind of preparation method of molecular sieve modified powder Download PDFInfo
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- CN107758683B CN107758683B CN201711188247.0A CN201711188247A CN107758683B CN 107758683 B CN107758683 B CN 107758683B CN 201711188247 A CN201711188247 A CN 201711188247A CN 107758683 B CN107758683 B CN 107758683B
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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
- C01B39/20—Faujasite type, e.g. type X or Y
- C01B39/22—Type X
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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
- C01B39/026—After-treatment
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Abstract
The invention discloses a kind of preparation methods of molecular sieve modified powder, the following steps are included: 1) molecular screen primary powder is ground to average grain diameter first is 300-350 microns, be 50-80 microns of alumina silicate by weight 100:(2-8 with granularity) ratio mix, be placed in heat-activated in dynamic kiln；2) mixed powder after activating step 1) is cooled to 40 DEG C hereinafter, being the clinoptilolite powder of 100-200nm with granularity, the chabasie powder that granularity is 50-80nm is uniformly mixed, and 5-8 hours obtained primary raw materials powder are roasted at 450-480 DEG C；Molecular sieve modified powder prepared by the present invention can be effectively reduced moisture, eliminate bubble, improve the material uniformity and intensity in the production of industrial plastic, rubber, coating, paint, resin and binder.
Description
Technical field
The present invention relates to a kind of preparation methods of molecular sieve modified powder.
Background technique
Industrial plastic, rubber, coating, paint, resin and certain binders production in, need to reduce moisture, eliminate gas
Bubble improves the material uniformity and intensity, and removal influences the impurity such as the moisture of product quality；Though and current simple existing molecular sieve
So can adsorption moisture, but be difficult to adsorption moisture while, eliminates bubble, improves the material uniformity and intensity, especially applies
It is unsatisfactory to the absorption property of moisture in the said goods production, therefore developing can be in industrial plastic, rubber, coating, oil
In the production of paint, resin and binder, the molecular sieve that moisture, elimination bubble, the raising material uniformity and intensity is effectively reduced changes
Property powder has great importance.
Summary of the invention
The technical problem to be solved by the present invention is to the shortcomings that overcoming the above prior art: providing one kind can be in industry
Plastics, rubber, coating, paint, resin and binder production in, moisture is effectively reduced, eliminates bubble, improve the material uniformity
With the preparation method of the molecular sieve modified powder of intensity.
Technical solution of the invention is as follows: a kind of preparation method of molecular sieve modified powder, comprising the following steps:
1) molecular screen primary powder is ground to average grain diameter first is 300-350 microns, the silicon for being 50-80 microns with granularity
Sour aluminium is by weight 100:(2-8) ratio mixing, be placed in heat-activated in dynamic kiln；
2) mixed powder after activating step 1) is cooled to 40 DEG C hereinafter, the clinoptilolite for being 100-200nm with granularity
Powder, the chabasie powder that granularity is 50-80nm are uniformly mixed, and 5-8 hours obtained primary raw materials powder are roasted at 450-480 DEG C；
3) first by montmorillonite and chitosan with weight ratio 10:(1-3) after mixing under nitrogen protection atmosphere in 500-
Roasted 1-5 hours at 520 DEG C, being then ground to granularity is 200-270 micron of secondary feedstock powder, finally by secondary feedstock powder and
The primary raw materials powder of step 2 preparation with weight ratio is 1:(20-25) mixed proportion after mixing under nitrogen protection atmosphere
It is roasted 2-3 hours at 400-450 DEG C, molecular sieve modified powder is made.
The molecular screen primary powder is one of NaX type molecular screen primary powder, KA type molecular screen primary powder.
Secondary feedstock powder and primary raw materials powder are after mixing under nitrogen protection atmosphere with 20-30 DEG C/min of heating
Speed is warming up to 400-450 DEG C, then heat preservation roasting 2-3 hours.
Most preferably, secondary feedstock powder and primary raw materials powder are after mixing under nitrogen protection atmosphere with 25 DEG C/min
Heating rate be warming up to 450 DEG C, then heat preservation roasting 2 hours.
Most preferably, in step 3), by montmorillonite and chitosan with weight ratio 10:2 after mixing in nitrogen protective atmosphere
It is roasted 1 hour at 500 DEG C under enclosing.
As optimization, in step 1), control activation temperature is 610-630 DEG C, activation time 2.5-3 hours.
The beneficial effects of the present invention are: the present invention uses alumina silicate to be activated molecular screen primary powder first, then
The clinoptilolite powder for being 100-200nm with granularity, the chabasie powder that granularity is 50-80nm mix phase inversion at a suitable temperature,
It is very refined to be finally sintered obtained pore-forming under nitrogen atmosphere with the secondary feedstock powder made of montmorillonite and chitosan, in industry
Plastics, rubber, coating, paint, resin and binder production in, while moisture is effectively reduced, eliminates bubble, object can be improved
Expect the molecular sieve modified powder of the uniformity and intensity.The molecular sieve modified powder is also applied for absorbing polyurethane, raw material and semi-finished product
The problems such as middle residual moisture, appearance and quality that thoroughly solution product is generated by moisture in the curing process, while not influencing
Other performances of product, a little molecular sieve modified powder is added in bicomponent polyurethane coating can eliminate blistering and pin hole, improve
Its wear-resisting and chemical resistance, while effectively improving its adhesiveness.Molecular sieve modified powder prepared by the present invention can will apply
Material water content, which is reduced to while extremely low level, will not occur any uncontrolled side reaction.For coating additive, packet
Stabilizer is filled, elimination foam can be played, extends product working life, improves coating in the function of the applicability of wet environment.
Specific embodiment
The present invention is described in further details with specific embodiment below, but the present invention is not only limited in detail below in fact
Apply example.
Embodiment one
A kind of preparation method of molecular sieve modified powder, comprising the following steps:
1) NaX type molecular screen primary powder is ground to average grain diameter first is 325 microns, the silicic acid for being 50 microns with granularity
Aluminium is mixed by weight the ratio of 100:2, is placed in heat-activated in dynamic kiln；Controlling activation temperature is 630 DEG C, activation time
2.5 hour.
2) mixed powder after activating step 1) is cooled to 25 DEG C, the clinoptilolite powder for being 100-200nm with granularity, grain
The chabasie powder that degree is 50-80nm is uniformly mixed, and 5 hours obtained primary raw materials powder are roasted at 460 DEG C；
3) first montmorillonite and chitosan are roasted at 520 DEG C under nitrogen protection atmosphere after mixing with weight ratio 10:1
It burns 5 hours, is then ground to the secondary feedstock powder that granularity is 200-270 microns, finally prepares secondary feedstock powder and step 2
Primary raw materials powder roast 3 at 450 DEG C under nitrogen protection atmosphere after mixing for the mixed proportion of 1:20 with weight ratio
Hour, molecular sieve modified powder is made.
Embodiment two
A kind of preparation method of molecular sieve modified powder, comprising the following steps:
1) KA type molecular screen primary powder is ground to average grain diameter first is 320 microns, the silicon for being 50-80 microns with granularity
Sour aluminium is mixed by weight the ratio of 100:5, is placed in heat-activated in dynamic kiln；Controlling activation temperature is 630 DEG C, when activation
Between 3 hours.
2) mixed powder after activating step 1) is cooled to 25 DEG C, the clinoptilolite powder for being 100-200nm with granularity, grain
The chabasie powder that degree is 50-80nm is uniformly mixed, and 5 hours obtained primary raw materials powder are roasted at 460 DEG C；
3) first montmorillonite and chitosan are roasted at 520 DEG C under nitrogen protection atmosphere after mixing with weight ratio 10:2
It burns 5 hours, is then ground to the secondary feedstock powder that granularity is 200-270 microns, finally prepares secondary feedstock powder and step 2
Primary raw materials powder with weight ratio for 1:20 mixed proportion after mixing under nitrogen protection atmosphere with 25 DEG C/min of liter
Warm speed is warming up to 450 DEG C, and then heat preservation roasting 2 hours, is made molecular sieve modified powder.
Embodiment three
A kind of preparation method of molecular sieve modified powder, comprising the following steps:
1) NaX type molecular screen primary powder is ground to average grain diameter first is 330 microns, the silicon for being 50-80 microns with granularity
Sour aluminium is mixed by weight the ratio of 100:4, is placed in heat-activated in dynamic kiln；Controlling activation temperature is 610 DEG C, when activation
Between 3 hours.
2) mixed powder after activating step 1) is cooled to 25 DEG C, the clinoptilolite powder for being 100-200nm with granularity, grain
The chabasie powder that degree is 50-80nm is uniformly mixed, and 5 hours obtained primary raw materials powder are roasted at 460 DEG C；
3) first montmorillonite and chitosan are roasted at 520 DEG C under nitrogen protection atmosphere after mixing with weight ratio 10:3
It burns 5 hours, is then ground to the secondary feedstock powder that granularity is 200-270 microns, finally prepares secondary feedstock powder and step 2
Primary raw materials powder with weight ratio for 1:20 mixed proportion after mixing under nitrogen protection atmosphere with 25 DEG C/min of liter
Warm speed is warming up to 450 DEG C, and then heat preservation roasting 2 hours, is made molecular sieve modified powder.
The above is only feature implementation examples of the invention, are not limited in any way to the scope of the present invention.It is all to use together
The technical solution formed Deng exchange or equivalence replacement, all falls within rights protection scope of the present invention.
Claims (5)
1. a kind of preparation method of molecular sieve modified powder, it is characterised in that: the following steps are included:
1) molecular screen primary powder is ground to average grain diameter first is 300-350 microns, the alumina silicate for being 50-80 microns with granularity
By weight 100:(2-8) ratio mixing, be placed in heat-activated in dynamic kiln；
2) mixed powder after activating step 1) is cooled to 40 DEG C hereinafter, the clinoptilolite powder for being 100-200nm with granularity, grain
The chabasie powder that degree is 50-80nm is uniformly mixed, and 5-8 hours obtained primary raw materials powder are roasted at 450-480 DEG C；
3) first by montmorillonite and chitosan with weight ratio 10:(1-3) after mixing under nitrogen protection atmosphere in 500-520 DEG C
Lower roasting 1-5 hours is then ground to the secondary feedstock powder that granularity is 200-270 microns, finally by secondary feedstock powder and step
2) the primary raw materials powder prepared with weight ratio is 1:(20-25) mixed proportion after mixing under nitrogen protection atmosphere in
It is roasted 2-3 hours at 400-450 DEG C, molecular sieve modified powder is made；
The molecular screen primary powder is one of NaX type molecular screen primary powder, KA type molecular screen primary powder.
2. the preparation method of molecular sieve modified powder according to claim 1, it is characterised in that: secondary feedstock powder and primary are former
Heating rate of the feed powder after mixing under nitrogen protection atmosphere with 20-30 DEG C/min is warming up to 400-450 DEG C, then protects
Temperature roasting 2-3 hours.
3. the preparation method of molecular sieve modified powder according to claim 2, it is characterised in that: secondary feedstock powder and primary are former
Feed powder is warming up to 450 DEG C under nitrogen protection atmosphere after mixing with 25 DEG C/min of heating rate, then heat preservation roasting 2
Hour.
4. the preparation method of molecular sieve modified powder according to claim 2, it is characterised in that: in step 3), by montmorillonite
It is roasted 1 hour at 500 DEG C under nitrogen protection atmosphere after mixing with chitosan with weight ratio 10:2.
5. the preparation method of molecular sieve modified powder according to claim 1, it is characterised in that: in step 1), control is lived
Changing temperature is 610-630 DEG C, activation time 2.5-3 hours.
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| CN201711188247.0A CN107758683B (en) | 2017-11-24 | 2017-11-24 | A kind of preparation method of molecular sieve modified powder |
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| CN107758683A CN107758683A (en) | 2018-03-06 |
| CN107758683B true CN107758683B (en) | 2019-03-01 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6025369B2 (en) * | 1981-03-10 | 1985-06-18 | 水澤化学工業株式会社 | Wear-resistant granular zeolite and its manufacturing method |
| DE102006058813A1 (en) * | 2006-12-13 | 2008-06-19 | Wacker Chemie Ag | Process for the preparation of stable, highly pure moldings from fumed metal oxides without the addition of binders |
| CN102527445B (en) * | 2011-12-21 | 2014-01-08 | 陕西煤化工技术工程中心有限公司 | Preparation method of low-abrasion fluidized bed microspherical catalyst |
| CN103896303B (en) * | 2012-12-25 | 2017-10-20 | 大连理工大学 | A kind of method of the direct ultra-fine NaY molecular sieve of synthesizing high-silicon aluminum ratio |
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Denomination of invention: A preparation method of molecular sieve modified powder Effective date of registration: 20211227 Granted publication date: 20190301 Pledgee: Shangli Jiangxi rural commercial bank Limited by Share Ltd. Pledgor: Jiangxi Xintao Technology Co.,Ltd. Registration number: Y2021980016636 |
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