CN103372379A - Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier - Google Patents
Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier Download PDFInfo
- Publication number
- CN103372379A CN103372379A CN2013102932379A CN201310293237A CN103372379A CN 103372379 A CN103372379 A CN 103372379A CN 2013102932379 A CN2013102932379 A CN 2013102932379A CN 201310293237 A CN201310293237 A CN 201310293237A CN 103372379 A CN103372379 A CN 103372379A
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- oxide
- preparation
- spray coating
- coating liquor
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a preparation method of a molecular sieve composite membrane by taking a metallic oxide as a carrier. The preparation method comprises the following steps: firstly, diluting aluminum sol or silicon sol into a dilute solution by utilizing ethanol or water, dispersing molecular sieve granules in the dilute solution of the aluminum sol or the silicon sol, thereby obtaining a suspending liquid formed by the molecular sieve granules and the aluminum sol or the silicon sol, and carrying out ultrasonic treatment; and coating the suspending liquid on the surface of a metallic oxide granule by adopting a repeated spraying mode, drying and roasting to form a layer of composite membrane containing the molecular sieve granules and aluminum oxide or silicon oxide. The aluminum oxide layer or the silicon oxide layer is of a multihole structure, the molecular sieve granules are uniformly dispersed in the aluminum oxide or the silicon oxide, the molecular sieve composite membrane core-shell structure catalyst can be combined with a core metallic oxide catalyst and a shell molecular sieve catalyst to form a membrane reactor, so that two reactions or a plurality of reactions are coupled in one membrane reactor, the traditional contact mode of physically mixing the metallic oxide and the molecular sieve is improved, and the utilization efficiencies of two catalysts are improved.
Description
Technical field
The invention provides a kind of Zeolite composite film preparation method take metal oxide as carrier, belong to the inorganic material film preparation field.
Technical background
Metal oxide is comparatively common good catalyst, and synthetic for methyl alcohol such as copper and zinc oxide, manganese and ferriferous oxide are used for catalytic denitration process etc.The molecular sieve Heat stability is good has good pore passage structure and high-specific surface area, all is used widely in catalysis and separation field.CHA, MFI, FAU, MOR molecular sieve analog have preferably acid active sites, the more catalytic reaction processes such as catalytic pyrolysis and dehydration that are applied to.Molecular sieve is coated on the formation of metal oxide particle surface has the nucleocapsid structure catalytic film reactor for catalytic process, can realize two steps or multistep reaction are coupling in the reactor, improve the reaction efficiency of successive reaction.
Compare traditionally with metal oxide and molecular sieve physical mixed catalyst, nucleocapsid structure has increased the contact area between the nucleocapsid bi-material greatly, and active sites is more evenly distributed, and can provide more reaction active site in unit volume.
A lot of documents have been set forth the superior function of molecular screen membrane catalyst with core-casing structure, but molecular screen membrane catalyst with core-casing structure preparation condition is harsh, acid or alkaline Zeolite synthesis liquid and high temperature crystallization process all can affect the catalytic performance of core catalyst, especially metal oxide catalyst all exists dissolving or melting phenomenon in acidity or alkaline water thermal environment, or with synthetic liquid in template or the reactive component reaction inert substance that generates non-activity.(the J.Am.Chem.Soc. such as Yang, 2010,132, p8129) making catalyst with core-casing structure take cupric oxide zinc oxide aluminium oxide as nuclear with take the HZSM-5 molecular sieve as shell also is used for being reacted by direct preparation of dimethyl ether by using synthesis gas, preparation condition is very harsh, and NaOH and halid existence all can reduce the activity of core metal oxide catalyst greatly, and synthetic liquid will be strict controlled in neutrality, crystallization temperature can not be too high, and these harsh conditions all are unfavorable for the growth of molecular screen membrane.
The SAPO Series Molecules sieve membrane preparation method of Chinese patent application CN103086395(take metal oxide as carrier) namely be on metal oxide carrier, directly to prepare molecular screen membrane, although preparation process is to be weak acid environment between the 6-7 at pH value, in the high temperature crystallization process, still can the catalytic activity of metal oxide carrier be exerted an influence.Therefore, the as a result extensive use of catalyst has profound significance to the catalyst with core-casing structure preparation method of searching preparation condition gentleness to nucleocapsid.
Summary of the invention
Two kinds of catalyst disperseed inhomogeneous shortcomings when the present invention had overcome metal oxide and molecular sieve physical mixed and is used for successive reaction, also avoided simultaneously the shortcoming of metal oxide activity decreased in the molecular screen membrane preparation process, a kind of Zeolite composite film preparation method take metal oxide as carrier is provided.
A kind of Zeolite composite film preparation method take metal oxide as carrier comprises the steps:
(1) spray coating liquor preparation: taking by weighing 2～10g colloidal sol is weak solution with 20～100g ethanol or water dilution, adds 1～5g molecular sieve powder in described weak solution again, and ultrasonic concussion 2h gets spray coating liquor;
(2) composite membrane preparation: be that 1:30～60 take by weighing metal oxide and spray coating liquor according to metal oxide and described spray coating liquor mass ratio; Described spray coating liquor is sprayed on the scattered metal oxide, then places drying box dry, again spraying, dry again, so repeat, until spray coating liquor is used up, the metal oxide that spraying is good is dry, then roasting namely gets Zeolite composite film.
In the preparation of step (1) spray coating liquor, described colloidal sol is Ludox or aluminium colloidal sol.
In the preparation of step (1) spray coating liquor, described molecular sieve is one or more in CHA, MFI, FAU, the MOR molecular sieve.
Described molecular sieve changes its pore passage structure through preliminary treatment by acid or alkali treatment, or the interpolation metal ion changes its active sites distribution.
In the preparation of step (2) composite membrane, metal oxide is one or more in cupric oxide, zinc oxide, zirconia, nickel oxide, cobalt oxide, cerium oxide, iron oxide, manganese oxide, the aluminium oxide.
A kind of metal oxide of described method preparation is the Zeolite composite film catalyst with core-casing structure of carrier, and the core catalyst is metal oxide, and shell is Zeolite composite film.
Beneficial effect of the present invention: catalyst with core-casing structure obtains extensive concern because it can be coupling in successive reaction in the reactor, and the Acidity of Aikalinity of high temperature crystallization and synthetic liquid all can destroy the activity of core catalyst when common molecular screen membrane catalyst with core-casing structure prepared.And Zeolite composite film catalyst with core-casing structure preparation condition is gentleer than molecule sieve membrane catalyst with core-casing structure, the molecular sieve for preparing and aluminium colloidal sol or Ludox are sprayed on the core catalyst surface, without impact, the Zeolite composite film catalyst with core-casing structure has preferably catalytic efficiency to the successive reaction coupling process to whole preparation process on the catalyst performance of core catalyst.
Description of drawings
Fig. 1 is the schematic diagram of Zeolite composite film catalyst with core-casing structure and physical mixed catalyst.
Fig. 2 is Zeolite composite film catalyst with core-casing structure structural representation.
Fig. 3 is the SEM figure of embodiment 1 metal oxide carrier.
Fig. 4 is the SEM figure that embodiment 1 metal oxide particle surface coats Zeolite composite film.
Fig. 5 is the SEM figure on the synthetic Zeolite composite film surface of embodiment 1.
Fig. 6 is the SEM figure in the cross section of embodiment 1 metal oxide particle surface coating Zeolite composite film.
Among Fig. 2,1. sieve particle, 2. Woelm Alumina or silicon oxide layer, 3. shell is the composite membrane that is comprised of molecular sieve and pellumina or silicon oxide film.
The specific embodiment
With accompanying drawing the present invention is further elaborated in conjunction with the embodiments.
As shown in Figure 1, the left side is traditional physical mixed catalyst, is about to two kinds of catalyst physical mixed; The right side is the Zeolite composite film catalyst with core-casing structure, improved the way of contact of two kinds of catalyst, can effectively successive reaction be coupling in the same reactor, can be with the separating of the catalytic action of catalyst nucleus and molecular screen membrane, overall performance that catalytic process combines to improve catalyst.
The preparation process of Zeolite composite film is relatively gentle, that the molecular sieve that will prepare and the weak solution of aluminium colloidal sol or Ludox are sprayed on metal oxide surface, there are not acidity or alkaline water thermal environment and high temperature crystallization process, the activity of core metal oxide catalyst is unaffected in preparation process, more can give play to the advantage of catalyst with core-casing structure.As shown in Figure 2, wherein 1 is sieve particle, 2 is Woelm Alumina or silicon oxide layer, 3 for shell be the composite membrane that is formed by molecular sieve and pellumina or silicon oxide film, single catalyst granules is a mini-size membrane reactor after coating Zeolite composite film, " fence " effect of Zeolite composite film can stop or delay the loss of inactivation and the active constituent of catalyst to a great extent, also can immediately remove by the composite membrane of shell core catalyst reaction heat to prevent catalyst overheating simultaneously.
(1) spray coating liquor preparation: taking by weighing 2g aluminium colloidal sol is weak solution with the dilution of 20g ethanol, or takes by weighing the 2g Ludox, is weak solution with the dilution of 20g water, adds the 1g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:30 takes by weighing core catalyst and spray coating liquor with the spray coating liquor mass ratio according to metal oxide (Fig. 3).The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 2 times, place 60 ℃ of dry 30min of drying box, spray again 2 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.Fig. 4 is the SEM figure that the metal oxide particle surface coats Zeolite composite film, and Fig. 5 is the SEM figure on Zeolite composite film surface, and Fig. 6 is the section S EM figure that the metal oxide particle surface coats Zeolite composite film.
(1) spray coating liquor preparation: taking by weighing 5g aluminium colloidal sol is weak solution with the dilution of 50g ethanol, or takes by weighing 2～10g Ludox, is weak solution with the dilution of 50g water, adds the 3g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:50 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 2 times, place 60 ℃ of dry 30min of drying box, spray again 2 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
(1) spray coating liquor preparation: taking by weighing 10g aluminium colloidal sol is weak solution with the dilution of 100g ethanol, or takes by weighing the 10g Ludox, is weak solution with the dilution of 100g water, adds the 5g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:60 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 3 times, place 60 ℃ of dry 30min of drying box, spray again 3 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Embodiment 4
(1) spray coating liquor preparation: taking by weighing 6g aluminium colloidal sol is weak solution with the dilution of 60g ethanol, or takes by weighing the 6g Ludox, is weak solution with the dilution of 60g water, adds the 2g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:40 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 2 times, place 60 ℃ of dry 30min of drying box, spray again 2 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Embodiment 5
(1) spray coating liquor preparation: taking by weighing 8g aluminium colloidal sol is weak solution with the dilution of 70g ethanol, or takes by weighing the 8g Ludox, is weak solution with the dilution of 70g water, adds the 3g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:40 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 3 times, place 60 ℃ of dry 30min of drying box, spray again 3 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Embodiment 6
(1) spray coating liquor preparation: taking by weighing 3g aluminium colloidal sol is weak solution with the dilution of 50g ethanol, or takes by weighing the 3g Ludox, is weak solution with the dilution of 50g water, adds the 4g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:60 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 3 times, place 60 ℃ of dry 30min of drying box, spray again 3 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Embodiment 7
(1) spray coating liquor preparation: taking by weighing 7g aluminium colloidal sol is weak solution with the dilution of 90g ethanol, or takes by weighing the 7g Ludox, is weak solution with the dilution of 90g water, adds the 4g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:60 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 2 times, place 60 ℃ of dry 30min of drying box, spray again 2 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Embodiment 8
(1) spray coating liquor preparation: taking by weighing 4g aluminium colloidal sol is weak solution with the dilution of 60g ethanol, or takes by weighing the 4g Ludox, is weak solution with the dilution of 60g water, adds the 2g molecular sieve powder again, and ultrasonic concussion 2h gets spray coating liquor.
(2) composite membrane preparation: be that 1:60 takes by weighing core catalyst and spray coating liquor according to metal oxide and spray coating liquor mass ratio.The spray coating liquor of preparation is sprayed on the scattered metal oxide, sprays 2 times, place 60 ℃ of dry 30min of drying box, spray again 2 times, dry again, so repeat, until spray coating liquor is used up, at 120 ℃ of dry 12h, 550 ℃ of roasting 5h namely get Zeolite composite film with the gained particle.
Claims (6)
1. the Zeolite composite film preparation method take metal oxide as carrier is characterized in that comprising the steps:
(1) spray coating liquor preparation: taking by weighing 2～10g colloidal sol is weak solution with 20～100g ethanol or water dilution, adds 1～5g molecular sieve powder in described weak solution again, and ultrasonic concussion 2h gets spray coating liquor;
(2) composite membrane preparation: be that 1:30～60 take by weighing metal oxide and spray coating liquor according to metal oxide and described spray coating liquor mass ratio; Described spray coating liquor is sprayed on the scattered metal oxide, then places drying box dry, again spraying, dry again, so repeat, until spray coating liquor is used up, the metal oxide that spraying is good is dry, then roasting namely gets Zeolite composite film.
2. method according to claim 1 is characterized in that described colloidal sol is Ludox or aluminium colloidal sol in the preparation of step (1) spray coating liquor.
3. method according to claim 1 is characterized in that described molecular sieve is one or more in CHA, MFI, FAU, the MOR molecular sieve in the preparation of step (1) spray coating liquor.
4. method according to claim 3 is characterized in that described molecular sieve through preliminary treatment, changes its pore passage structure by acid or alkali treatment, or the interpolation metal ion changes its active sites distribution.
5. method according to claim 1 is characterized in that metal oxide is one or more in cupric oxide, zinc oxide, zirconia, nickel oxide, cobalt oxide, cerium oxide, iron oxide, manganese oxide, the aluminium oxide in the preparation of step (2) composite membrane.
6. the metal oxide of a method preparation according to claim 1 is the Zeolite composite film catalyst with core-casing structure of carrier, it is characterized in that the core catalyst is metal oxide, and shell is Zeolite composite film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293237.9A CN103372379B (en) | 2013-07-14 | 2013-07-14 | Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293237.9A CN103372379B (en) | 2013-07-14 | 2013-07-14 | Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103372379A true CN103372379A (en) | 2013-10-30 |
| CN103372379B CN103372379B (en) | 2015-01-28 |
Family
ID=49458593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310293237.9A Active CN103372379B (en) | 2013-07-14 | 2013-07-14 | Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103372379B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014253A (en) * | 2014-05-26 | 2014-09-03 | 浙江理工大学 | Preparation method and application of NaA-NaY molecular sieve composite membrane |
| CN107686378A (en) * | 2016-08-05 | 2018-02-13 | 湖南银和瓷业有限公司 | Micro- mesoporous composite molecular sieve film and preparation method thereof |
| CN110054499A (en) * | 2019-05-29 | 2019-07-26 | 扬州市飞鹰电子科技有限公司 | A kind of silicon nitride microballoon of area load molecular sieve, preparation method and applications |
| CN112423881A (en) * | 2018-05-21 | 2021-02-26 | 喜星触媒株式会社 | Zeolite with improved heat resistance and catalyst composite using the same |
| CN113134344A (en) * | 2021-04-21 | 2021-07-20 | 浙江卫星能源有限公司 | Novel dechlorinating agent and preparation method thereof |
| CN114459943A (en) * | 2021-12-31 | 2022-05-10 | 杭州诺蒙微晶生物科技有限公司 | Quartz crystal microbalance sensor and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177373B1 (en) * | 1996-03-14 | 2001-01-23 | Exxon Chemicals Patents Inc | Procedure for preparing molecular sieve films |
| CN103086395A (en) * | 2013-01-18 | 2013-05-08 | 浙江大学 | Preparation method of SAPO series molecular sieve membrane with metal oxide as carrier |
-
2013
- 2013-07-14 CN CN201310293237.9A patent/CN103372379B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177373B1 (en) * | 1996-03-14 | 2001-01-23 | Exxon Chemicals Patents Inc | Procedure for preparing molecular sieve films |
| CN103086395A (en) * | 2013-01-18 | 2013-05-08 | 浙江大学 | Preparation method of SAPO series molecular sieve membrane with metal oxide as carrier |
Non-Patent Citations (1)
| Title |
|---|
| BRISHTI MITRA ET AL.: "Washcoating of Different Zeolites on Cordierite Monoliths", 《J. AM. CERAM. SOC.》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014253A (en) * | 2014-05-26 | 2014-09-03 | 浙江理工大学 | Preparation method and application of NaA-NaY molecular sieve composite membrane |
| CN104014253B (en) * | 2014-05-26 | 2016-03-09 | 浙江理工大学 | The Preparation method and use of NaA-NaY Zeolite composite film |
| CN107686378A (en) * | 2016-08-05 | 2018-02-13 | 湖南银和瓷业有限公司 | Micro- mesoporous composite molecular sieve film and preparation method thereof |
| CN112423881A (en) * | 2018-05-21 | 2021-02-26 | 喜星触媒株式会社 | Zeolite with improved heat resistance and catalyst composite using the same |
| CN110054499A (en) * | 2019-05-29 | 2019-07-26 | 扬州市飞鹰电子科技有限公司 | A kind of silicon nitride microballoon of area load molecular sieve, preparation method and applications |
| CN113134344A (en) * | 2021-04-21 | 2021-07-20 | 浙江卫星能源有限公司 | Novel dechlorinating agent and preparation method thereof |
| CN113134344B (en) * | 2021-04-21 | 2023-08-11 | 浙江卫星能源有限公司 | Dechlorination agent and preparation method thereof |
| CN114459943A (en) * | 2021-12-31 | 2022-05-10 | 杭州诺蒙微晶生物科技有限公司 | Quartz crystal microbalance sensor and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103372379B (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103372379B (en) | Preparation method of molecular sieve composite membrane by taking metallic oxide as carrier | |
| CN103394373B (en) | A kind of preparation method of hydrogenation catalyst | |
| CN103539153B (en) | The preparation method of nanometer hierarchical pore ZSM-11/ZSM-5 eutectic zeolite | |
| CN103480373B (en) | The preparation method of dandelion shape nucleocapsid structure AuZnO heterojunction photocatalyst | |
| CN103638979A (en) | Magnetic zeolite imidazate metal organic skeletal material, preparation thereof and application to liquid phase condensation catalytic reaction | |
| CN108238846A (en) | A kind of purposes of the preparation method of ethyl alcohol catalyst for synthesizing and thus obtained catalyst and the catalyst | |
| CN103349997B (en) | Composite membrane core-shell structure catalyst and preparation method of low carbon hydrocarbon through CO2 hydrogenation adopting same | |
| CN105523569A (en) | Lamellar ZSM-5 molecular sieve and synthesis method thereof | |
| CN103638963B (en) | P-xylene fluid catalyst prepared by performing alkylation of methylbenzene methyl alcohol and preparation method thereof | |
| CN104556094B (en) | A kind of Y/Silicalite-1 composite molecular screen and preparation method thereof | |
| CN104084240A (en) | Magnetic core/shell/shell triple structure material with noble metal nano particles being at double-shell interlayer and preparation method of material | |
| CN109985659A (en) | A kind of CO2Orientation conversion prepares catalyst of aromatic hydrocarbons and preparation method thereof | |
| CN105502433B (en) | A kind of preparing gasoline by methanol catalyst nano Zn ZSM 5 preparation method | |
| CN103803581A (en) | ZSM-5 composite molecular sieve with a core-shell structure and preparation method and application thereof | |
| CN105498771B (en) | A kind of preparation method of silver/silver vanadate sheet composite photo-catalyst | |
| CN106362791A (en) | Mesoporous-microporous composite-pore-channel molecular sieve catalyst used for propane dehydrogenation for conversion into propylene and preparation method thereof | |
| CN104096590A (en) | Hybrid molecular sieve catalyst and its preparation method and application | |
| CN106925304A (en) | Bi24O31Br10/ ZnO composite visible light catalysts and preparation method thereof | |
| CN104624224A (en) | Zn/ZSM-11 molecular sieve catalyst modification method | |
| CN103212418A (en) | Dual-function catalyst for directly preparing dimethyl ether from synthesis gas and preparation method of dual-function catalyst | |
| CN102941118A (en) | Au nanometer core-shell structure catalyst and preparation method thereof | |
| CN104072335B (en) | A kind of cellulose catalytic converts dihydroxylic alcohols processed, hexahydroxylic alcohols and the method for gamma-valerolactone | |
| CN105170185A (en) | ZIF-8@MCM-41 molecular sieve and preparation method thereof | |
| CN108675315A (en) | A kind of preparation method of macropore-microporous molecular sieve catalyst ZSM-5 | |
| CN102530982A (en) | Method for preparing titanium silicalite film by dynamic in-situ hydrothermal method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161228 Address after: Yaohuamen Yao Qixia District of Nanjing City, Jiangsu province 210046 New Village Patentee after: China Construction Industrial Equipment Installation Co., Ltd. Patentee after: Zhejiang Univ. Address before: 310027 Hangzhou, Zhejiang Province, Xihu District, Zhejiang Road, No. 38, No. Patentee before: Zhejiang Univ. Patentee before: China Construction Industrial Equipment Installation Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210046 Yaohua Menyao'an New Village, Qixia District, Nanjing City, Jiangsu Province Co-patentee after: Zhejiang University Patentee after: China Construction Installation Group Co., Ltd. Address before: 210046 Yaohua Menyao'an New Village, Qixia District, Nanjing City, Jiangsu Province Co-patentee before: Zhejiang University Patentee before: China Construction Industrial Equipment Installation Co., Ltd. |