CN102039119A - Preparation method of catalyst for combining pyridine - Google Patents
Preparation method of catalyst for combining pyridine Download PDFInfo
- Publication number
- CN102039119A CN102039119A CN 201010549273 CN201010549273A CN102039119A CN 102039119 A CN102039119 A CN 102039119A CN 201010549273 CN201010549273 CN 201010549273 CN 201010549273 A CN201010549273 A CN 201010549273A CN 102039119 A CN102039119 A CN 102039119A
- Authority
- CN
- China
- Prior art keywords
- preparation
- hydrated alumina
- catalyst
- nitrate
- cerium
- 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
Landscapes
- Catalysts (AREA)
Abstract
The invention provides a preparation method of a catalyst for combining pyridine, which is characterized by comprising the following steps: 1, preparing hydrated alumina by adopting aluminium salts, such as aluminum sulfate, sodium metaaluminate and the like and a neutralizer via a sol-gel method; 2, adding nitrate of potash, lead nitrate and nitrate of rare earth and cerium to the hydrated alumina for pulping, wherein potassium, lead, lanthanum and cerium respectively account for 0.1-0.3%, 1-3%, 0.1-0.5%, 0.1-0.5% of alumina; 3, forming the pulp materials by using a spray drying method; and 4, roasting the materials which are subject to the spray drying in a muffle furnace for 4-8 hours at a temperature of 350-650 DEG C.
Description
Technical field
The present invention relates to catalysis technical field, be the Preparation of catalysts method of the synthetic usefulness of a kind of pyridine.
Background technology
Pyridine is important Organic Chemicals, and as intermediate, it is widely used in the synthetic field of medicine, agricultural chemicals.
The source of pyridine mainly contains two kinds, and the one, the refinement method, another is a catalysis synthesis process.Because the output of the method for refinement is very low, since nineteen fifties, pyridine is mainly by catalysis synthesis process production.But this method always has the shortcoming that the operation cycle is long and catalyst life is short.
Summary of the invention
For addressing the above problem, the present invention adopts following proposal to be realized.
The Preparation of catalysts method of the synthetic usefulness of a kind of pyridine is characterized in that:
1) prepare hydrated alumina with aluminium salt such as aluminum sulfate, sodium metaaluminate and nertralizer with sol-gel process,
2) pull an oar in the nitrate adding hydrated alumina with potassium nitrate, plumbi nitras and Rare Earth Lanthanum, cerium, wherein potassium, lead, lanthanum, cerium account for aluminium oxide 0.1-0.3%, 1-3%, 0.1-0.5%, 0.1-0.5% respectively,
3) with the spray drying process material forming of will pulling an oar,
4) material after the spray-drying in Muffle furnace 350-650 ℃ the calcining 4-8 hour.
According to the method described in the present invention, it is characterized in that: the preparation of hydrated alumina is by aluminum sulfate and NaOH; Perhaps aluminum sulfate and sodium metaaluminate; Perhaps sodium metaaluminate and nitric acid preparation.
As preferred version, potassium, lead, lanthanum, cerium account for 0.2%, 2.5%, 0.4%, 0.4% of aluminium oxide respectively in the catalyst.
According to the method described in the present invention, it is further characterized in that; Comprise following process:
First preparation hydrated alumina adds the nitrate of potassium nitrate, plumbi nitras and Rare Earth Lanthanum, cerium in the hydrated alumina then and pulls an oar, and use the spray drying process moulding, the catalyst after the moulding in Muffle furnace 350-650 ℃ calcined 4-8 hour.
As preferred version, the catalyst behind the spray drying forming in Muffle furnace 550 ℃ the calcining 6 hours.
Advantage of the present invention is not influence under selection of catalysts, the conversion ratio prerequisite, improving life of catalyst.Production technology is simple, and equipment investment is few, and the no three wastes produce, and are desirable pyridine synthesis catalyst.
Specific embodiments
Embodiment 1
Get the neutralization of a certain amount of aluminum sulfate, sodium hydroxide solution and obtain hydrated alumina, get making beating and spray-drying in a certain amount of plumbi nitras, lanthanum nitrate, the cerous nitrate adding hydrated alumina, made the catalyst A that lead, lanthanum, cerium account for aluminium oxide 2.5%, 0.4%, 0.4% respectively in 6 hours through 550 ℃ of calcinings of Muffle furnace then.
Embodiment 2
Get the neutralization of a certain amount of aluminum sulfate, sodium hydroxide solution and obtain hydrated alumina, get making beating and spray-drying in a certain amount of potassium nitrate, plumbi nitras, lanthanum nitrate, the cerous nitrate adding hydrated alumina, made the catalyst B that potassium, lead, lanthanum, cerium account for aluminium oxide 0.2%, 2.5%, 0.4%, 0.4% respectively in 6 hours through 550 ℃ of calcinings of Muffle furnace then.
Embodiment 3
Get the neutralization of a certain amount of aluminum sulfate, sodium aluminate solution and obtain hydrated alumina, get making beating and spray-drying in a certain amount of potassium nitrate, plumbi nitras, lanthanum nitrate, the cerous nitrate adding hydrated alumina, made the catalyst C that potassium, lead, lanthanum, cerium account for aluminium oxide 0.2%, 2.5%, 0.4%, 0.4% respectively in 6 hours through 550 ℃ of calcinings of Muffle furnace then.
Embodiment 4
Get the neutralization of a certain amount of sodium metaaluminate, salpeter solution and obtain hydrated alumina, get making beating and spray-drying in a certain amount of potassium nitrate, plumbi nitras, lanthanum nitrate, the cerous nitrate adding hydrated alumina, made the catalyst D that potassium, lead, lanthanum, cerium account for aluminium oxide 0.2%, 2.5%, 0.4%, 0.4% respectively in 6 hours through 550 ℃ of calcinings of Muffle furnace then.
Embodiment 5
Four kinds of catalyst of A, B, C, D of above preparation are carried out reaction evaluating in fixed bed reactors, loaded catalyst 20g, 450 ℃ of liquid phase air speeds of reaction temperature 0.7-0.8h
-1, catalyst has loaded the back and be warming up to 450 ℃ under the state of logical ammonia, the micro pump charging, and formaldehyde, acetaldehyde, ammonia mol ratio are 1: 1: 1.5, GC8A carries out sample analysis with Tianjin, island.
Result such as following table
Claims (5)
1. the Preparation of catalysts method of the synthetic usefulness of a pyridine is characterized in that:
1) prepare hydrated alumina with aluminium salt such as aluminum sulfate, sodium metaaluminate and nertralizer with sol-gel process,
2) pull an oar in the nitrate adding hydrated alumina with potassium nitrate, plumbi nitras and Rare Earth Lanthanum, cerium, wherein potassium, lead, lanthanum, cerium account for aluminium oxide 0.1-0.3%, 1-3%, 0.1-0.5%, 0.1-0.5% respectively,
3) with the spray drying process material forming of will pulling an oar,
4) material after the spray-drying in Muffle furnace 350-650 ℃ the calcining 4-8 hour.
2. according to the preparation method of claim 1, it is characterized in that: the preparation of hydrated alumina is by aluminum sulfate and NaOH; Perhaps aluminum sulfate and sodium metaaluminate; Perhaps sodium metaaluminate and nitric acid preparation.
3. according to the preparation method of claim 1, it is characterized in that: potassium, lead, lanthanum, cerium account for 0.2%, 2.5%, 0.4%, 0.4% of aluminium oxide respectively in the catalyst.
4. according to the preparation method of claim 1, it is characterized in that: the Preparation of catalysts method is to prepare hydrated alumina earlier, pull an oar in the nitrate adding hydrated alumina with potassium nitrate, plumbi nitras and Rare Earth Lanthanum, cerium then, use the spray drying process moulding, the catalyst after the moulding in Muffle furnace 350-650 ℃ the calcining 4-8 hour.
5. according to the preparation method of claim 4, it is characterized in that: the catalyst behind the spray drying forming in Muffle furnace 550 ℃ the calcining 6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010549273A CN102039119B (en) | 2010-11-18 | 2010-11-18 | Preparation method of catalyst for combining pyridine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010549273A CN102039119B (en) | 2010-11-18 | 2010-11-18 | Preparation method of catalyst for combining pyridine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039119A true CN102039119A (en) | 2011-05-04 |
| CN102039119B CN102039119B (en) | 2012-10-17 |
Family
ID=43905855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010549273A Active CN102039119B (en) | 2010-11-18 | 2010-11-18 | Preparation method of catalyst for combining pyridine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039119B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521209A (en) * | 2013-10-11 | 2014-01-22 | 中国海洋石油总公司 | Preparation method of catalyst for synthesis of pyridine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020068843A1 (en) * | 2000-09-29 | 2002-06-06 | Wei Dai | Selective hydrogenation catalyst for selectively hydrogenating of unsaturated olefin, process for preparing the same and its use |
| CN101347744A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Catalyst for synthesizing pyridine using microsphere type high-silicon ZSM-5 molecular sieve as carrier and preparation method thereof |
| CN101623636A (en) * | 2009-08-11 | 2010-01-13 | 沙隆达集团公司 | Catalyst for synthesizing pyridine and alkyl pyridine and preparation method thereof |
-
2010
- 2010-11-18 CN CN201010549273A patent/CN102039119B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020068843A1 (en) * | 2000-09-29 | 2002-06-06 | Wei Dai | Selective hydrogenation catalyst for selectively hydrogenating of unsaturated olefin, process for preparing the same and its use |
| CN101347744A (en) * | 2008-09-05 | 2009-01-21 | 江苏扬农化工股份有限公司 | Catalyst for synthesizing pyridine using microsphere type high-silicon ZSM-5 molecular sieve as carrier and preparation method thereof |
| CN101623636A (en) * | 2009-08-11 | 2010-01-13 | 沙隆达集团公司 | Catalyst for synthesizing pyridine and alkyl pyridine and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《化工中间体》 20081231 张晓静等 合成吡啶催化剂的研究 28-30 1-5 , 第2期 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521209A (en) * | 2013-10-11 | 2014-01-22 | 中国海洋石油总公司 | Preparation method of catalyst for synthesis of pyridine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102039119B (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103539210B (en) | A kind of preparation method of cobalt molybdate crystallite | |
| EP2873458A1 (en) | Butadiene catalyst for fluidized bed reactor prepared by oxidizing and dehydrogenating butylene, and preparation method and use thereof | |
| CN107308957B (en) | Spherical Bi2S3/Bi2WO6Preparation method of heterojunction photocatalytic material | |
| CN101584986A (en) | Method for preparing methanol synthesizing catalyst | |
| CN103071807A (en) | Preparation method of ultra-fine spherical cobalt powder | |
| CN105727959A (en) | Method for preparing methanol synthesis catalyst by using microchannel reactor | |
| CN107435156B (en) | A kind of preparation method of high-performance electrolysis elutriation VPO catalysts | |
| CN109248695B (en) | Oxygen vacancy mediated Bi-based layered nitrogen fixation photocatalyst and preparation method thereof | |
| CN105727930A (en) | Catalyst for propylene production using propane dehydrogenation and preparation method and application of catalyst | |
| CN103495421B (en) | A kind of catalyst for methanation in presence of sulfur and preparation method thereof | |
| CN105214672A (en) | A kind of preparation method of the catalyst for methanol that maximizes | |
| CN102247855A (en) | Catalyst for preparing methyl ethyl ketone by virtue of sec-butyl alcohol dehydrogenation and preparation method thereof | |
| CN104785261A (en) | Oxalate hydrogenation catalyst synthesized by mixed silicon source method and preparation method thereof | |
| CN104495922B (en) | A kind of yttrium acid bismuth nanometer rods and its production and use | |
| CN103721698A (en) | Zinc oxide catalyst of ordered layered structure and preparation method thereof | |
| CN102039119B (en) | Preparation method of catalyst for combining pyridine | |
| CN108722486A (en) | A kind of preparation method of narrowband carbonitride modification ferrous metals organic backbone composite photo-catalyst | |
| CN102992376A (en) | Preparation method of sheet-shaped nano-grade cerium oxide | |
| CN111229228A (en) | CO (carbon monoxide)2Complete methanation catalyst and preparation and application thereof | |
| CN102423709A (en) | N-p heterogeneous composite photocatalyst and preparation method and application thereof | |
| CN102294251B (en) | Nano-oxide catalyst for preparing propylene by oxidative dehydrogenation of propane and preparation method thereof | |
| CN103657626A (en) | Preparation method of Al2O3/CaMgO composite solid base catalyst | |
| CN102557141A (en) | Structure-oriented synthetic method of zinc tungstate nanometer sheet | |
| CN110433813B (en) | Copper-indium alloy catalyst for synthesizing methanol by carbon dioxide hydrogenation and preparation method and application thereof | |
| CN104275184A (en) | Preparation method of low-impurity-content copper-based methanol synthesis catalyst |
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 |