CN107398291A - A kind of preparation method of catalyst carrier - Google Patents
A kind of preparation method of catalyst carrier Download PDFInfo
- Publication number
- CN107398291A CN107398291A CN201710730790.2A CN201710730790A CN107398291A CN 107398291 A CN107398291 A CN 107398291A CN 201710730790 A CN201710730790 A CN 201710730790A CN 107398291 A CN107398291 A CN 107398291A
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- CN
- China
- Prior art keywords
- parts
- base substrate
- catalyst carrier
- preparation
- carrier base
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- 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.)
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Classifications
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/22—Carbides
- B01J27/224—Silicon carbide
Abstract
The invention discloses a kind of preparation method of catalyst carrier, comprise the following steps：1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500 650 mesh：1,000 1250 parts of aluminum oxide；13 28 parts of carborundum；20 30 parts of kaolin；36 parts of dolomite, 25 parts of sesbania powder；2）Put into kneading machine to be kneaded 30 120 minutes after being well mixed with water and pug is prepared；3）Carrier base substrate is made in pug；4）Carrier base substrate is dried at a temperature of 250 270 DEG C；5）Carrier base substrate is burnt till and can be prepared by catalyst carrier；The present invention is provided simultaneously with uniform pore size distribution and good compression strength.
Description
Technical field
The present invention relates to a kind of preparation method of catalyst carrier.
Background technology
It is existing as the general based on activated alumina of catalyst carrier, activated alumina is a kind of porous, height
The solid material of decentralization, there is very big surface area, its micropore surface possesses the characteristic required by catalytic action, such as adsorptivity
Energy, surface-active, excellent heat endurance etc., so being widely used as the catalyst and catalyst carrier of chemical reaction.So
And existing catalyst carrier is difficult to be provided simultaneously with uniform pore size distribution and good compression strength.
The content of the invention
The technical problems to be solved by the invention are the shortcomings that overcoming above prior art：Offer is provided simultaneously with uniformly
The preparation method of the catalyst carrier of pore size distribution and good compression strength.
The technical solution of the present invention is as follows：A kind of preparation method of catalyst carrier, comprises the following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：Aluminum oxide 1000-1250 parts；Carborundum
13-28 parts；Kaolin 20-30 parts；Dolomite 3-6 parts, sesbania powder 2-5 parts；
2）Will be in step 1）The good raw material of mixed grinding puts into kneading machine with accounting for after raw material gross weight 20-30% water is well mixed
Pug is prepared in middle mixing 30-120 minutes；
3）By step 2）Carrier base substrate is made in obtained pug；
4）By step 3）The weight percent content that obtained carrier base substrate is dried to moisture at a temperature of 250-270 DEG C is less than
1.2%；
5）By step 4）Dried carrier base substrate rises to 1200-1300 DEG C with 30-38 DEG C/h heating rate and carries out burning till 12-
18h can be prepared by catalyst carrier.
As optimization, step 3）Middle carrier base substrate is compressing by extrusion molding or isostatic pressed.
As optimization, step 3）Middle carrier base substrate is shaped as cylinder or spherical.
As optimization, step 1）In 1）Each raw material is made up of following parts by weight：1200 parts of aluminum oxide；Carborundum
15 parts；20 parts of kaolin；3 parts of dolomite, 2 parts of sesbania powder.
As optimization, step 4）The weight percent content of middle carrier body drying to moisture is 0.5-0.7%.
As optimization, step 5）In dried carrier base substrate rise to 1250 DEG C with 30 DEG C/h heating rate and burn till
12h。
The beneficial effects of the invention are as follows：Kaolin is with the addition of on the basis of major ingredient aluminum oxide by the present invention and dolomite adds
The compression strength of powerful catalyst carrier, while the combination of carborundum and sesbania powder can effectively improve the micropore distribution of catalyst carrier
The uniformity and micropore fineness, so that catalyst carrier is provided simultaneously with uniform pore size distribution and good compression strength,
Improve pore volume and specific surface area.
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
Catalyst carrier is prepared according to following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：1000 parts of aluminum oxide；Carborundum 13
Part；20 parts of kaolin；3 parts of dolomite, 2 parts of sesbania powder；
2）Will be in step 1）The good raw material of mixed grinding mixes with accounting for put into kneading machine after the water of raw material gross weight 20% is well mixed
Pug is prepared in 120 minutes in refining；
3）By step 2）Obtained pug isostatic pressed is compressing to be made spheroid carrier base substrate；
4）By step 3）The weight percent content that obtained carrier base substrate is dried to moisture at a temperature of 270 DEG C is less than
1.2%；
5）By step 4）Dried carrier base substrate, which with 38 DEG C/h heating rate rises to 1300 DEG C, to carry out burning till 18h and can be prepared by
Catalyst carrier.
Embodiment two
Catalyst carrier is prepared according to following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：1250 parts of aluminum oxide；Carborundum 28
Part；30 parts of kaolin；6 parts of dolomite, 5 parts of sesbania powder；
2）Will be in step 1）The good raw material of mixed grinding mixes with accounting for put into kneading machine after the water of raw material gross weight 30% is well mixed
Pug is prepared in 120 minutes in refining；
3）By step 2）Carrier base substrate is made in obtained pug；
4）By step 3）The weight percent content that obtained carrier base substrate is dried to moisture at a temperature of 250 DEG C is less than
1.2%；
5）By step 4）Dried carrier base substrate, which with 30 DEG C/h heating rate rises to 1300 DEG C, to carry out burning till 18h and can be prepared by
Catalyst carrier.
Embodiment three
Catalyst carrier is prepared according to following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：1150 parts of aluminum oxide；Carborundum 20
Part；30 parts of kaolin；6 parts of dolomite, 5 parts of sesbania powder；
2）Will be in step 1）The good raw material of mixed grinding mixes with accounting for put into kneading machine after the water of raw material gross weight 22% is well mixed
Pug is prepared in 120 minutes in refining；
3）By step 2）Cylinder carrier base substrate is made in obtained pug extrusion molding；
4）By step 3）The weight percent content that obtained carrier base substrate is dried to moisture at a temperature of 260 DEG C is less than
1.2%；
5）By step 4）Dried carrier base substrate, which with 35 DEG C/h heating rate rises to 1250 DEG C, to carry out burning till 15h and can be prepared by
Catalyst carrier.
Example IV
Catalyst carrier is prepared according to following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：1200 parts of aluminum oxide；Carborundum 15
Part；20 parts of kaolin；3 parts of dolomite, 2 parts of sesbania powder.
2）Will be in step 1）The good raw material of mixed grinding mixes with accounting for put into after raw material gross weight 20-30% water is well mixed
Pug is prepared in mixing 30-120 minutes in mill；
3）By step 2）Obtained pug isostatic pressed is compressing to be made spheroid carrier base substrate；
4）By step 3）Obtained carrier base substrate is dried at a temperature of 250 DEG C to the weight percent content 0.5- of moisture
0.7%；
5）By step 4）Dried carrier base substrate, which with 30 DEG C/h heating rate rises to 1250 DEG C, to carry out burning till 12h and can be prepared by
Catalyst carrier.
Embodiment five
Catalyst carrier is prepared according to following steps：
1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：1250 parts of aluminum oxide；Carborundum 13
Part；30 parts of kaolin；6 parts of dolomite, 2 parts of sesbania powder；
2）Will be in step 1）The good raw material of mixed grinding mixes with accounting for put into kneading machine after the water of raw material gross weight 30% is well mixed
Pug is prepared in 60 minutes in refining；
3）By step 2）Carrier base substrate is made in obtained pug；
4）By step 3）Obtained carrier base substrate is dried at a temperature of 270 DEG C to the weight percent content 0.8% of moisture；
5）By step 4）Dried carrier base substrate, which with 38 DEG C/h heating rate rises to 1300 DEG C, to carry out burning till 12h and can be prepared by
Catalyst carrier.
It the above is only the feature implementation example of the present invention, the scope of the present invention be not limited in any way.It is all to use together
The technical scheme formed Deng exchange or equivalence replacement, all falls within rights protection scope of the present invention.
Claims (6)
- A kind of 1. preparation method of catalyst carrier, it is characterised in that：Comprise the following steps：1）By each raw material mixed powder of following parts by weight it is broken, be ground to 500-650 mesh：Aluminum oxide 1000-1250 parts；Carborundum 13-28 parts；Kaolin 20-30 parts；Dolomite 3-6 parts, sesbania powder 2-5 parts；2）Will be in step 1）The good raw material of mixed grinding puts into kneading machine with accounting for after raw material gross weight 20-30% water is well mixed Pug is prepared in middle mixing 30-120 minutes；3）By step 2）Carrier base substrate is made in obtained pug；4）By step 3）The weight percent content that obtained carrier base substrate is dried to moisture at a temperature of 250-270 DEG C is less than 1.2%；5）By step 4）Dried carrier base substrate rises to 1200-1300 DEG C with 30-38 DEG C/h heating rate and carries out burning till 12- 18h can be prepared by catalyst carrier.
- 2. the preparation method of catalyst carrier according to claim 1, it is characterised in that：Step 3）Middle carrier base substrate passes through Extrusion molding or isostatic pressed are compressing.
- 3. the preparation method of catalyst carrier according to claim 1, it is characterised in that：Step 3）The shape of middle carrier base substrate Shape is cylinder or spherical.
- 4. the preparation method of catalyst carrier according to claim 1, it is characterised in that：Step 1）In 1）Each raw material It is made up of following parts by weight：1200 parts of aluminum oxide；15 parts of carborundum；20 parts of kaolin；3 parts of dolomite, 2 parts of sesbania powder.
- 5. the preparation method of catalyst carrier according to claim 1, it is characterised in that：Step 4）Middle carrier body drying Weight percent content to moisture is 0.5-0.7%.
- 6. the preparation method of catalyst carrier according to claim 1, it is characterised in that：Step 5）In dried carrier Base substrate rises to 1250 DEG C with 30 DEG C/h heating rate and burns till 12h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730790.2A CN107398291A (en) | 2017-08-23 | 2017-08-23 | A kind of preparation method of catalyst carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730790.2A CN107398291A (en) | 2017-08-23 | 2017-08-23 | A kind of preparation method of catalyst carrier |
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| Publication Number | Publication Date |
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| CN107398291A true CN107398291A (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710730790.2A Pending CN107398291A (en) | 2017-08-23 | 2017-08-23 | A kind of preparation method of catalyst carrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273567A (en) * | 2018-02-12 | 2018-07-13 | 陈彦霖 | Lightweight acrylic acid catalyst carrier and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020094932A1 (en) * | 1999-12-29 | 2002-07-18 | Faber Margaret K. | Zeolite/Alumina catalyst support compositions and method of making the same |
| CN1496758A (en) * | 2002-10-17 | 2004-05-19 | 株式会社电装 | Ceramic caltalyst |
| CN102091660A (en) * | 2010-11-10 | 2011-06-15 | 姚光纯 | Bird-nest catalyst carrier |
| CN102463143A (en) * | 2010-11-17 | 2012-05-23 | 中国石油化工股份有限公司 | Composite carrier for preparing thin shell catalysts |
-
2017
- 2017-08-23 CN CN201710730790.2A patent/CN107398291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020094932A1 (en) * | 1999-12-29 | 2002-07-18 | Faber Margaret K. | Zeolite/Alumina catalyst support compositions and method of making the same |
| CN1496758A (en) * | 2002-10-17 | 2004-05-19 | 株式会社电装 | Ceramic caltalyst |
| CN102091660A (en) * | 2010-11-10 | 2011-06-15 | 姚光纯 | Bird-nest catalyst carrier |
| CN102463143A (en) * | 2010-11-17 | 2012-05-23 | 中国石油化工股份有限公司 | Composite carrier for preparing thin shell catalysts |
Non-Patent Citations (1)
| Title |
|---|
| 田维亮主编: "《化学工程与工艺专业实验》", 31 March 2015 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273567A (en) * | 2018-02-12 | 2018-07-13 | 陈彦霖 | Lightweight acrylic acid catalyst carrier and preparation method thereof |
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Application publication date: 20171128 |
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