CN109046343A - A kind of platinized asbestos catalyst spheres and preparation method thereof for gas phase hydrogenation - Google Patents
A kind of platinized asbestos catalyst spheres and preparation method thereof for gas phase hydrogenation Download PDFInfo
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- CN109046343A CN109046343A CN201810994921.2A CN201810994921A CN109046343A CN 109046343 A CN109046343 A CN 109046343A CN 201810994921 A CN201810994921 A CN 201810994921A CN 109046343 A CN109046343 A CN 109046343A
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- China
- Prior art keywords
- asbestos
- sliver
- support rod
- platinized
- gas phase
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- 239000010425 asbestos Substances 0.000 title claims abstract description 167
- 229910052895 riebeckite Inorganic materials 0.000 title claims abstract description 167
- 239000003054 catalyst Substances 0.000 title claims abstract description 44
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000243 solution Substances 0.000 claims description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 36
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000013019 agitation Methods 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 16
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 14
- 239000012670 alkaline solution Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229910017604 nitric acid Inorganic materials 0.000 claims description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 7
- 238000007654 immersion Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001458 anti-acid effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- BTGRAWJCKBQKAO-UHFFFAOYSA-N adiponitrile Chemical compound N#CCCCCC#N BTGRAWJCKBQKAO-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of platinized asbestos catalyst spheres for gas phase hydrogenation, platinized asbestos catalyst spheres include asbestos sliver main support rod, secondary support rod, asbestos sliver and protection ball；Secondary support rod one end is fixedly connected on main support rod, and the other end is fixedly connected with multiple equally distributed asbestos slivers；Protecting ball is the spherical shell of inner hollow, and cutting has multiple equally distributed ventholes on the shell of protection ball；The upper and lower ends of protection ball, which are dug, the fixation hole to match with main support rod；Protection ball is socketed on asbestos sliver main support rod by fixation hole.The invention also discloses a kind of preparation methods of platinized asbestos catalyst spheres for gas phase hydrogenation.
Description
Technical field
The invention belongs to platinized asbestos catalyst preparation technical fields, and in particular to a kind of platinized asbestos for gas phase hydrogenation is urged
Agent ball；The invention further relates to the preparation methods of the platinized asbestos catalyst spheres.
Background technique
Platinized asbestos is exactly the asbestos for having superfine platinum powder on surface, usually asbestos in chloroplatinic acid (H2PtCl6) it is dilute molten
It being impregnated in liquid, is then placed on calcination on flame, chloroplatinic acid is thermally decomposed, and very thin platinum powder is generated, is attached on asbestos surface, by
It is very thin in platinum powder, therefore its surface area is very big, catalytic action is many times stronger than common platinum powder.Generally used in gas analysis
Make the absorbent of hydrogen, such as benzene or the gas phase hydrogenation of pyridine.
Gas phase hydrogenation refers to that the reaction process of hydrogen and the interaction of other compounds, hydrogenation reaction belong to the scope of reduction.Example
Such as co hydrogenation synthesizing methanol: CO+2H2─→CH3OH, adipic dinitrile hydrogenation preparing hexanediamine: NC (CH2)4CN+4H2─→H2N
(CH2)6NH2.Platinized asbestos is prepared in the prior art because catalytic action is preferably widely used in the catalyst of gas phase hydrogenation
The step of platinized asbestos, is relatively complicated, and the platinized asbestos produced is grey black threadiness, and it is inconvenient to pick and place, and be easy to cause larger
Loss.
Summary of the invention
The object of the present invention is to provide a kind of platinized asbestos catalyst spheres for gas phase hydrogenation, it may be implemented with microorganism
The mode of biofilm prepares platinized asbestos catalyst, the significant increase specific surface area of platinized asbestos catalyst, conducive to catalysis is substantially improved
The efficiency of reaction.
It is a further object to provide a kind of preparation methods of platinized asbestos catalyst spheres for gas phase hydrogenation.
The technical scheme adopted by the invention is that: a kind of platinized asbestos catalyst spheres for gas phase hydrogenation, platinized asbestos catalysis
Agent ball includes asbestos sliver main support rod, secondary support rod, asbestos sliver and protection ball；Secondary support rod one end is fixedly connected on main support rod
On, the other end is fixedly connected with multiple equally distributed asbestos slivers；Protecting ball is the spherical shell of inner hollow, and protects ball
Digging on shell has multiple equally distributed ventholes；The upper and lower ends of protection ball dig to have to be consolidated with what main support rod matched
Determine hole；Protection ball is socketed on asbestos sliver main support rod by fixation hole.
The features of the present invention also characterized in that
Secondary support rod is fixed on main support rod by welding or aperture inserted mode, is led between secondary support rod and asbestos sliver
Cross reinforcement rope connection.
Main support rod, secondary support rod and protection ball are polytetrafluoroethylene material.
The diameter range of main support rod is 2-5 centimetres；The diameter range for protecting ball is 10-25 centimetres, the length of asbestos sliver
Range is 3-5 centimetres, and cross-sectional width range is 0.2-0.5 centimetres.
Main support rod is hollow structure.
Protection ball is symmetrical clamping structure, can open and be closed under external force.
The material for reinforcing rope is high-strength polyethylene fiber.
Another technical solution of the present invention is: a kind of preparation of the platinized asbestos catalyst spheres for gas phase hydrogenation
Method, the specific steps are as follows:
One, asbestos sliver bracket and the protection ball combination that will have asbestos sliver, are first impregnated 10-20 minutes with alkaline solution, alkali
Property solution be sodium hydroxide solution that mass concentration is 5-20%, then the nitric acid solution for being 5-20% with mass concentration impregnates 10-
20 minutes, it is washed to neutrality, asbestos sliver can be made to soften, and keeps the inside of asbestos sliver more fluffy, it can significant increase asbestos sliver
Specific surface area is cleaned using the warm water that temperature is 45 DEG C later conducive to the absorption of active component, it is molten sufficiently to wash away remaining alkalinity
Liquid or nitric acid solution；
Two, the asbestos sliver bracket and protection ball combination immersion mass concentration that have asbestos sliver is molten for the chloroplatinic acid of 3-5%
In liquid, 40 DEG C are warming up to, while not stopping agitation 30-50 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver；
Three, by the asbestos sliver bracket with asbestos sliver and the formaldehyde boiling water for protecting ball to be added in combination mass concentration as 5-20%
In solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 9-10, agitation 30 minutes is then proceeded to, it is cold after the reaction was completed
But clean with pure water to room temperature, the mass ratio of the chloroplatinic acid and formalin is 1:1.8-2.5；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 70-80 DEG C, asbestos sliver becomes black, i.e., complete
At preparation, the platinized asbestos catalyst spheres for gas phase hydrogenation are obtained.
The beneficial effects of the present invention are:
(1) this programme may be implemented to prepare platinized asbestos in a manner of microorganism colonization, significant increase platinized asbestos catalyst
Specific surface area do not easily cause the loss of platinized asbestos conducive to the efficiency that catalysis reaction is substantially improved, and convenient for picking and placing, improve effect
Economic benefit can also be promoted while rate.
(2) reinforcement rope is fixedly connected between the inside of secondary support rod and the inside of asbestos sliver, it is possible to increase asbestos sliver and pair
The stability connected between support rod keeps asbestos sliver not easily to fall off.
(3) main support rod, secondary support rod and protection ball are polytetrafluoroethylene material, and polytetrafluoroethylene (PTFE) has antiacid anti-
Alkali resists the characteristics of various organic solvents, is practically insoluble in all solvents.Meanwhile polytetrafluoroethylene (PTFE) have the characteristics that it is resistant to high temperature,
Processing is being carried out to asbestos sliver or as catalyst in use, main support rod, secondary support rod and protection ball will not produce process
It is raw to influence.
(4) material for reinforcing rope is Di Nima Dyneema high-strength polyethylene fiber, and Di Nima Dyneema high intensity is poly-
Vinyl fiber has the spies such as the bent fatigue behaviour of good resistance to change, wearability, weatherability, antiultraviolet and resistance to chemical corrosion
Point.
(5) maximum gauge of main support rod is 10 centimetres, and the length of asbestos sliver is 5 centimetres, and the section of asbestos sliver is maximum wide
Degree is 0.5 centimetre, applicable more reaction environments.
(6) it combines the asbestos sliver bracket with asbestos sliver successively using alkaline solution and nitric acid solution immersion with protection ball
Afterwards, it is cleaned using the warm water that temperature is 45 degrees Celsius, sufficiently washes away remaining alkaline solution or nitric acid solution, be not easy to subsequent
Treatment process impacts.
(7) main support rod is hollow structure, saves material and is easy to increase intensity, while convenient for being catalyzed multiple platinized asbestos
Agent ball by the stable rope of property pass through multiple main support rods hollow space string together, convenient for combination, take conveniently.
(8) protection ball is symmetrical clamping structure, can open and be closed under external force, when asbestos sliver is lost to certain
Degree can open protection ball replacement asbestos sliver, recycling protection ball, economical environment-protective.
Detailed description of the invention
Fig. 1 is the asbestos sliver supporting structure schematic diagram in the present invention；
Fig. 2 is the structural schematic diagram with reinforcement rope in the asbestos sliver bracket in the present invention；
Fig. 3 is the structural schematic diagram of present invention protection ball；
Fig. 4 is the sectional view of present invention protection ball；
Fig. 5 sectional view between asbestos sliver in the present invention and secondary support rod.
In figure, 1. main support rods, 2. secondary support rods, 3. asbestos slivers, 4. protection balls, 5. ventholes, 6. fixation holes, 7. reinforce
Rope.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of platinized asbestos catalyst spheres for gas phase hydrogenation, as shown in Figs. 1-5, platinized asbestos catalyst
Ball includes asbestos sliver main support rod 1, secondary support rod 2, asbestos sliver 3 and protection ball 4；Secondary 2 one end of support rod is fixedly connected on main branch
On strut 1, the other end is fixedly connected with multiple equally distributed asbestos slivers 3；Protecting ball 4 is the spherical shell of inner hollow, and
It protects to dig on the shell of ball 4 and has multiple equally distributed ventholes 5；The upper and lower ends of protection ball 4, which are dug, to be had and main support
The fixation hole 6 that bar 1 matches；Protection ball 4 is socketed on asbestos sliver main support rod 1 by fixation hole 6, is located at main support rod 1
It protects inside ball 4, and the both ends end of main support rod 1 is located in the fixation hole 6 of protection 4 upper/lower terminal of ball, may be implemented
Prepare platinized asbestos in a manner of microorganism colonization, the significant increase specific surface area of platinized asbestos catalyst is urged conducive to being substantially improved
Change the efficiency of reaction, and convenient for picking and placing, does not easily cause the loss of platinized asbestos, economic effect can also be promoted while improving efficiency
Benefit, asbestos sliver 3 are platinized asbestos item.
Secondary support rod 2 is fixed on main support rod 1 by welding or aperture inserted mode, secondary support rod 2 and asbestos sliver 3 it
Between by reinforce rope 7 connection.
Main support rod 1, secondary support rod 2 and protection ball 4 are polytetrafluoroethylene material.Polytetrafluoroethylene (PTFE) has antiacid anti-
Alkali resists the characteristics of various organic solvents, is practically insoluble in all solvents；Meanwhile polytetrafluoroethylene (PTFE) have the characteristics that it is resistant to high temperature,
Processing is being carried out to asbestos sliver 3 or as catalyst in use, main support rod 1, secondary support rod 2 and protection ball 4 will not be to mistakes
Journey has an impact；
The diameter range of main support rod 1 is 2-5 centimetres；The diameter range for protecting ball 4 is 10-25 centimetres, the length of asbestos sliver 3
Spending range is 3-5 centimetres, and cross-sectional width range is 0.2-0.5 centimetres；Applicable more reaction environments, convenient for placing；
Main support rod 1 is hollow structure, saves material and is easy to increase intensity, while being convenient for multiple platinized asbestos catalyst
Ball by the stable rope of property pass through multiple main support rods 1 hollow space string together, convenient for combination, take conveniently.
Protection ball 4 is symmetrical clamping structure, can open and be closed under external force, when the loss of asbestos sliver 3 is arrived centainly
Degree can open protection ball 4 and replace asbestos sliver 3, recycling protection ball 4, economical environment-protective.
The material for reinforcing rope 7 is Di Nima Dyneema high-strength polyethylene fiber, the high-intensitive poly- second of Di Nima Dyneema
Alkene fiber has the characteristics that the bent fatigue behaviour of good resistance to change, wearability, weatherability, antiultraviolet and resistance to chemical corrosion；
The stability connected between asbestos sliver 3 and secondary support rod 2 can be increased by reinforcing rope, keep asbestos sliver 3 not easily to fall off.
The present invention also provides a kind of preparation methods of platinized asbestos catalyst spheres for gas phase hydrogenation, and specific steps are such as
Under:
One, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are combined, are first impregnated 10-20 minutes with alkaline solution,
Alkaline solution is the sodium hydroxide solution that mass concentration is 5-20%, then the nitric acid solution for being 5-20% with mass concentration is impregnated
10-20 minutes, it is washed to neutrality, softens asbestos sliver 3, and keep the inside of asbestos sliver 3 more fluffy, it can significant increase asbestos sliver
3 specific surface area is conducive to active component and adsorbs, and is cleaned later using the warm water that temperature is 45 DEG C, sufficiently washes away remaining alkalinity
Solution or nitric acid solution；
Two, the asbestos sliver bracket for having asbestos sliver 3 and the protection combination of ball 4 are immersed into the chloroplatinic acid that mass concentration is 3-5%
In solution, 40 DEG C are warming up to, while not stopping agitation 30-50 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver 3；
Three, by the asbestos sliver bracket with asbestos sliver 3 and the formaldehyde boiling for protecting ball 4 to be added in combination mass concentration as 5-20%
In aqueous solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 9-10, agitation 30 minutes is then proceeded to, after the reaction was completed
It is cooled to room temperature, clean with pure water, the mass ratio of the chloroplatinic acid and formalin is 1:1.8-2.5；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 70-80 DEG C, asbestos sliver 3 becomes black, i.e., complete
At preparation, the platinized asbestos catalyst spheres for gas phase hydrogenation are obtained.
In use, single or multiple platinized asbestos catalyst are put into the environment of gas reaction, and reusable,
With prior art ratio, this programme may be implemented to prepare platinized asbestos in a manner of microorganism colonization, and significant increase platinized asbestos is urged
The specific surface area of agent does not easily cause the loss of platinized asbestos, mentions conducive to the efficiency that catalysis reaction is substantially improved, and convenient for picking and placing
It is efficient while economic benefit can also be promoted.
Embodiment 1
One, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are combined, is first impregnated 10 minutes with alkaline solution, alkalinity
Solution is the sodium hydroxide solution that mass concentration is 5%, then the nitric acid solution for being 5% with mass concentration is impregnated 10 minutes, washing
To neutrality, asbestos sliver 3 can be made to soften, and keep the inside of asbestos sliver 3 more fluffy, can significant increase asbestos sliver 3 specific surface area,
Conducive to active component absorption, is cleaned later using the warm water that temperature is 45 DEG C, sufficiently wash away remaining alkaline solution or nitric acid is molten
Liquid；
Two, the asbestos sliver bracket and the protection combination immersion mass concentration of ball 4 that have asbestos sliver 3 is molten for 3% chloroplatinic acid
In liquid, 40 DEG C are warming up to, while not stopping agitation 30 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver 3；
Three, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are added in combination the formaldehyde boiling water that mass concentration is 5%
In solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 9, agitation 30 minutes is then proceeded to, is cooled to after the reaction was completed
Room temperature, clean with pure water, the mass ratio of the chloroplatinic acid and formalin is 1:1.8；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 70 DEG C, asbestos sliver 3 becomes black, that is, completes
Preparation, obtains the platinized asbestos catalyst spheres for gas phase hydrogenation.
Embodiment 2
One, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are combined, is first impregnated 20 minutes with alkaline solution, alkalinity
Solution is the sodium hydroxide solution that mass concentration is 20%, then the nitric acid solution for being 20% with mass concentration is impregnated 20 minutes, water
Be washed till neutrality, asbestos sliver 3 can be made to soften, and keep the inside of asbestos sliver 3 more fluffy, can significant increase asbestos sliver 3 specific surface
Product is conducive to active component and adsorbs, and is cleaned later using the warm water that temperature is 45 DEG C, sufficiently washes away remaining alkaline solution or nitric acid
Solution；
Two, the asbestos sliver bracket and the protection combination immersion mass concentration of ball 4 that have asbestos sliver 3 is molten for 5% chloroplatinic acid
In liquid, 40 DEG C are warming up to, while not stopping agitation 50 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver 3；
Three, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are added in combination the formaldehyde boiling water that mass concentration is 20%
In solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 10, agitation 30 minutes is then proceeded to, is cooled down after the reaction was completed
Clean with pure water to room temperature, the mass ratio of the chloroplatinic acid and formalin is 1:2.5；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 80 DEG C, asbestos sliver 3 becomes black, that is, completes
Preparation, obtains the platinized asbestos catalyst spheres for gas phase hydrogenation.
Embodiment 3
One, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are combined, is first impregnated 15 minutes with alkaline solution, alkalinity
Solution is the sodium hydroxide solution that mass concentration is 15%, then the nitric acid solution for being 15% with mass concentration is impregnated 15 minutes, water
Be washed till neutrality, asbestos sliver 3 can be made to soften, and keep the inside of asbestos sliver 3 more fluffy, can significant increase asbestos sliver 3 specific surface
Product is conducive to active component and adsorbs, and is cleaned later using the warm water that temperature is 45 DEG C, sufficiently washes away remaining alkaline solution or nitric acid
Solution；
Two, the asbestos sliver bracket and the protection combination immersion mass concentration of ball 4 that have asbestos sliver 3 is molten for 4% chloroplatinic acid
In liquid, 40 DEG C are warming up to, while not stopping agitation 40 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver 3；
Three, the asbestos sliver bracket for having asbestos sliver 3 and protection ball 4 are added in combination the formaldehyde boiling water that mass concentration is 10%
In solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 9.5, agitation 30 minutes is then proceeded to, is cooled down after the reaction was completed
Clean with pure water to room temperature, the mass ratio of the chloroplatinic acid and formalin is 1:2.1；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 75 DEG C, asbestos sliver 3 becomes black, that is, completes
Preparation, obtains the platinized asbestos catalyst spheres for gas phase hydrogenation.
Claims (8)
1. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation, it is characterised in that: the platinized asbestos catalyst spheres include asbestos
Main support rod (1), secondary support rod (2), asbestos sliver (3) and protect ball (4)；Described pair support rod (2) one end is fixedly connected on
On main support rod (1), the other end is fixedly connected with multiple equally distributed asbestos slivers (3)；The protection ball (4) is inner hollow
Spherical shell, and protect ball (4) shell on dig have multiple equally distributed ventholes (5)；It is described to protect the upper of ball (4)
Lower both ends, which are dug, the fixation hole (6) to match with main support rod (1)；The protection ball (4) is socketed in by fixation hole (6)
On asbestos sliver main support rod (1).
2. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: the secondary branch
Strut (2) by welding or aperture inserted mode be fixed on main support rod (1), it is described pair support rod (2) and asbestos sliver (3) it
Between by reinforce rope (7) connection.
3. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: the main branch
Strut (1), secondary support rod (2) and protection ball (4) are polytetrafluoroethylene material.
4. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: the main branch
The diameter range of strut (1) is 2-5 centimetres；The diameter range of protection ball (4) is 10-25 centimetres, the asbestos sliver (3)
Length range is 3-5 centimetres, and cross-sectional width range is 0.2-0.5 centimetres.
5. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: the main branch
Strut (1) is hollow structure.
6. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: the protection
Ball (4) is symmetrical clamping structure, can open and be closed under external force.
7. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 2, it is characterised in that: the reinforcement
The material of rope (7) is high-strength polyethylene fiber.
8. a kind of platinized asbestos catalyst spheres for gas phase hydrogenation according to claim 1, it is characterised in that: its preparation side
Method are as follows:
One, it by the asbestos sliver bracket with asbestos sliver (3) and protection ball (4) combination, is first impregnated 10-20 minutes with alkaline solution,
Alkaline solution is the sodium hydroxide solution that mass concentration is 5-20%, then the nitric acid solution for being 5-20% with mass concentration is impregnated
10-20 minutes, it is washed to neutrality, softens asbestos sliver (3), and keep the inside of asbestos sliver (3) more fluffy, significant increase asbestos
The specific surface area of item (3) is conducive to active component and adsorbs, and is cleaned, is sufficiently washed away remaining using the warm water that temperature is 45 DEG C later
Alkaline solution or nitric acid solution；
Two, the asbestos sliver bracket with asbestos sliver (3) and protection ball (4) combination are immersed into the chloroplatinic acid that mass concentration is 3-5%
In solution, 40 DEG C are warming up to, while not stopping agitation 30-50 minutes, platinum acid chloride solution is made to be fully infiltrated into asbestos sliver (3)；
Three, by the asbestos sliver bracket with asbestos sliver (3) and the formaldehyde boiling for protecting ball (4) to be added in combination mass concentration as 5-20%
In aqueous solution, agitation reduction, while sodium hydroxide is added and adjusts pH to 9-10, agitation 30 minutes is then proceeded to, after the reaction was completed
It is cooled to room temperature, clean with pure water, the mass ratio of the chloroplatinic acid and formalin is 1:1.8-2.5；
Four, the platinized asbestos catalyst spheres after washing are dry under conditions of 70-80 DEG C, asbestos sliver (3) becomes black, that is, completes
Preparation, obtains the platinized asbestos catalyst spheres for gas phase hydrogenation.
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