CN105728062A - Production method for copper-zinc catalyst - Google Patents
Production method for copper-zinc catalyst Download PDFInfo
- Publication number
- CN105728062A CN105728062A CN201410753819.5A CN201410753819A CN105728062A CN 105728062 A CN105728062 A CN 105728062A CN 201410753819 A CN201410753819 A CN 201410753819A CN 105728062 A CN105728062 A CN 105728062A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- manufacturing process
- tablet
- particle
- catalyst manufacturing
- 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.)
- Pending
Links
Landscapes
- Catalysts (AREA)
Abstract
The invention belongs to the technical field of chemical industry catalysts and particularly relates to a production method for a copper-zinc catalyst. The production method for the catalyst, disclosed by the invention, comprises the steps of subjecting precipitated slurry to spray drying, and then, subjecting spray-dried particles to pre-tabletting so as to form tablets with larger size, so as to replace the traditional method which comprises the steps of carrying out a material crushing procedure, then, crushing the tablets with larger size into particles with particle size smaller than 2mm by adopting a crusher, and then, carrying out tabletting so as to form the finished product of required specifications. According to the production method, accurate control on materials of different properties is achieved in a manner of controlling different compression ratios, so that control indexes are quantified, the labor intensity is lowered, and the product quality can be more stable.
Description
Technical field
The invention belongs to chemical catalyst production technical field, be specifically related to the production method of a kind of copper zinc catalyst.
Background technology
During at present prepared by the catalyst in copper zinc system, the soluble-salt mixed solution being typically with copper and zinc carries out precipitation with precipitant, generate copper and the precipitate of zinc, after scrubbed, can be according to the needs of each kind catalyst, add different auxiliary agents or carrier, obtain finished catalyst through filtering, dry, grind the operations such as material, pelletize, roasting, molding the most again.In industrial processes, neutralization precipitation usually uses coprecipitation, slip washing to use decantation, and solid-liquid separation uses flame filter press, and dry materials uses baking oven, uses roller to carry out grinding material, after the material after roasting adds a little graphite and water, then compression molding.The subject matter that this manufacturing process exists is: use decantation washing slip and sheet frame filter to filter; water consumption is big; incline easy material leakage during washing; easily cause material loss and environmental pollution, during grinding material, owing to amount of water and stone roller material time are wayward; thus often can not reach to grind material requirement; subsequent handling produces impact, and roasting particle easily causes incomplete mixing when adding graphite simultaneously, thus causes product strength inequality, quality unstable.ZL200610097874.9 is by using film circulation washing and filtering, spray drying granulation and two-sided chain-plate type far-infrared dryer calcining novel technique, instead of decantation washing slip, plate-and-frame filtration, roll, pelletize, the preparation semi-product material operation such as particle calcining, alleviate labor intensity, reduce production cost, improve the continuous operations degree of catalyst production process, but, this new technology can not be suitable for the material that one-shot forming is more difficult.
Summary of the invention
The invention reside in the production method that a kind of catalyst is provided, it is mainly used in the process using coprecipitation to produce catalyst, the production method using the present invention produces catalyst, its manufacturing condition is easily controllable, the catalyst strength produced is uniform, constant product quality, and reduce the energy consumption of production process.Especially solve the conventionally produced catalyst of employing, the problem that roasting particle is difficult to one-shot forming, catalyst strength fluctuation is bigger.
The present invention is accomplished by: after the precipitation scrubbed filtration of material, use the method being spray-dried that material is dried, before Pen Wuganzaoing, graphite is joined in slip, the solid content that Material control is certain, to ensure that material can be atomized granulating, for different water content during spray drying, control corresponding heating power, to ensure that spray dried particle has suitable water content, to meet the requirement of subsequent handling, particle after spray drying is pressed into bolus in advance by controlling certain compression ratio, carry out being broken into suitable particle by bolus the most again, particle is carried out at a certain temperature roasting again, finally according to required tablet format compression molding.
In the catalyst manufacturing process of the present invention, it is to be directly added into graphite in slip to stir, is then spray-dried.
The catalyst manufacturing process of the present invention, is that spray dried particle directly uses high pressure tablet machine carry out compression molding, and the specification of tablet can be 10mm-200mm, can determine according to the mould selected by production capacity and tablet machine, preferably 50mm-100mm.The catalyst of different cultivars can be selected for the mould of different size.The purpose of pre-tabletting is to improve the bulk strength of catalyst, reaches the effect using roller to roll in traditional handicraft.
The catalyst manufacturing process of the present invention, pre-tabletting mainly by controlling what compression ratio realized, compression ratio i.e., the ratio of the height of tablet after material packed height in a mold and compression molding.During the pre-tabletting of catalyst of different cultivars, required compression ratio is different.Such as the catalyst for some kind, as long as controlling compression ratio is that 2-4 is the most permissible, and for other catalyst, compression ratio may need 5-6, and even above 6.
The catalyst manufacturing process of the present invention, pre-tablet agent uses pulverizer to be crushed by pre-tablet agent, selects the screen cloth of certain pore size time broken, and aperture is typically at 0.9mm
-2.5mm。
Tablets particle specification after crushing is 0-4.0mm, and preferred particle specification is 0.5mm-2.0mm.
The catalyst that the catalyst manufacturing process of the present invention produces, the catalyst performance that its performance and conventional production methods produce is in same level.
The catalyst manufacturing process of the present invention, is more easy to realize the serialization of process, reduces labor intensity.
Detailed description of the invention
Below by embodiment, the present invention is described in detail.Embodiment is not limitation of the present invention.
Embodiment 1
First the method provided by ZL00133276.7 prepares coal-water-oil slurry, then uses the catalyst manufacturing process of the present invention to produce low pressure methanol catalyst.After in the coal-water-oil slurry producing low pressure methanol catalyst, interpolation accounts for the graphite of solids content 2%, mix homogeneously, the solid content of coal-water-oil slurry is 25%, by being spray-dried the drying particulate forming 0.9mm, the water content controlling drying particulate is 5%, drying particulate is used tabletting machine molding again, the packed height of tablet machine is 30mm, the height being pressed into tablet is 15mm, tablet size is 100mm, i.e. compression ratio is 2, then use pulverizer that tablet is broken into the diameter particle less than 2mm, this particle is carried out roasting at far infrared roaster, the particle after roasting is pressed into the cylindrical tablet of 5mm × 5mm again, obtain finished product A1.Molding optimum compression ratio is 2.
Embodiment 2
First the method provided by ZL00133276.7 prepares coal-water-oil slurry, then uses the catalyst manufacturing process of the present invention to produce low pressure methanol catalyst.After in the coal-water-oil slurry producing low pressure methanol catalyst, interpolation accounts for the graphite of solids content 2%, mix homogeneously, the solid content of coal-water-oil slurry is 25%, by being spray-dried the drying particulate forming 0.9mm, the water content controlling drying particulate is 5%, drying particulate is used tabletting machine molding again, the packed height of tablet machine is 30mm, the height being pressed into tablet is 12mm, tablet size is 100mm, i.e. compression ratio is 2.5, then use pulverizer that tablet is broken into the diameter particle less than 2mm, this particle is carried out roasting at far infrared roaster, the particle after roasting is pressed into the cylindrical tablet of 5mm × 5mm again, obtain finished product A2.Molding optimum compression ratio is 1.5.
Embodiment 3
The method provided by ZL00133276.7 embodiment prepares catalyst, as reference.Will coal-water-oil slurry is scrubbed, filtration washing, drying, roasting, molding obtain 5 × 5 cylindrical tablet, obtain finished product A.Molding optimum compression ratio is 3.8.
Comparative example 1
Sample embodiment 1, embodiment 2, embodiment 3 prepared carries out physical and chemical performance and Activity determination under the same conditions, and testing result is listed in table 1.Activity determination condition is: gas composition CO(13-15) %, CO2(3-5) %, H2(55-65) %, remaining for N2；Pressure 5.0Mpa, temperature 230 DEG C, air speed 1.0 × 104h-1
Table 1 performance and active testing result
Embodiment 4
The method provided by ZL00133278.3 prepares cyclohexanol dehydrogenation catalyst, as reference.Will be aged, wash, filter, be spray-dried, roll the operations such as pelletize, roasting, compression molding after the copper zinc-aluminium mixed liquor of normal concentration and proportioning is neutralized reaction with precipitant, obtain 6mm × 3mm finished catalyst B.Molding optimum compression ratio is 8.
Embodiment 5
nullThe method provided by ZL00133278.3 prepares cyclohexanol dehydrogenation catalyst slip，Then the catalyst manufacturing process using the present invention is producing cyclohexanol dehydrogenation catalyst，After in slip, interpolation accounts for the graphite of solids content 2%，Mix homogeneously，The solid content of coal-water-oil slurry is 25%，By being spray-dried the drying particulate forming 0.9mm，The water content controlling drying particulate is 5%，Drying particulate is used tabletting machine molding again，The packed height of tablet machine is 30mm，The height being pressed into tablet is 5mm，Tablet size is 100mm，I.e. compression ratio is 5，Then use pulverizer that tablet is broken into the diameter particle less than 2mm，This particle is carried out roasting at far infrared roaster，The particle after roasting is pressed into the cylindrical tablet of 6mm × 3mm again，Obtain finished product B1.Molding optimum compression ratio is 1.5.
Comparative example 2
Sample embodiment 4, embodiment 5 prepared carries out physical and chemical performance and Activity determination under the same conditions, and testing result is listed in table 2.Activity determination condition is: loaded catalyst is 50ml, pressure 0.1Mpa, Hexalin liquid air speed 0.6h-1, temperature 230 DEG C.
Table 2 performance and active testing result
May certify that from the result of embodiment, use the catalyst that the production method of the present invention produces, its performance and the catalyst performance using conventional production methods to produce are in same level, respectively control parameter all can quantify, easily controllable, to improving the serialization degree that device produces, reducing labor intensity has remarkable result.
Claims (9)
1. the production method of a copper zinc catalyst, coprecipitation is used to produce catalyst, it is characterized in that production process is: after the precipitation scrubbed filtration of material, use the method being spray-dried that material is dried, before Pen Wuganzaoing, graphite is joined in slip, particle after spray drying is pressed into bolus in advance by controlling compression ratio, carry out being broken into suitable particle by bolus the most again, again particle is carried out roasting, the finally requirement for finished product carries out compression molding by controlling compression ratio, thus obtains satisfactory finished product.
2. catalyst manufacturing process as claimed in claim 1, it is characterised in that after spray drying, particle directly uses high pressure tablet machine to carry out compression molding.
3. catalyst manufacturing process as claimed in claim 1, it is characterised in that tablet particle specification after crushing is 0-4.0mm.
4. catalyst manufacturing process as claimed in claim 3, it is characterised in that tablet particle specification after crushing is 0.5mm-2.0mm.
5. catalyst manufacturing process as claimed in claim 1 or 2, it is characterised in that the specification of high pressure tablet machine institute tablet agent is 10mm-200mm.
6. catalyst manufacturing process as claimed in claim 1 or 2, it is characterised in that the specification of high pressure tablet machine institute tablet agent is 50mm-100mm.
7. catalyst manufacturing process as claimed in claim 1 or 2, it is characterised in that pre-tablet agent uses pulverizer to be crushed by pre-tablet agent, selects aperture at the screen cloth of 0.9mm-2.5mm time broken.
8. catalyst manufacturing process as claimed in claim 1, it is characterised in that control compression ratio during tabletting more than 2.
9. catalyst manufacturing process as claimed in claim 3, it is characterised in that control compression ratio during tabletting more than 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753819.5A CN105728062A (en) | 2014-12-11 | 2014-12-11 | Production method for copper-zinc catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753819.5A CN105728062A (en) | 2014-12-11 | 2014-12-11 | Production method for copper-zinc catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105728062A true CN105728062A (en) | 2016-07-06 |
Family
ID=56238542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410753819.5A Pending CN105728062A (en) | 2014-12-11 | 2014-12-11 | Production method for copper-zinc catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105728062A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993519A (en) * | 2017-06-07 | 2018-12-14 | 中国石油化工股份有限公司 | A kind of preparation method of CuZnAl catalyst |
| CN113083311A (en) * | 2019-12-23 | 2021-07-09 | 中石化南京化工研究院有限公司 | Method for preparing carbon monoxide low-change catalyst by far infrared ray roasting |
| CN113426447A (en) * | 2021-06-22 | 2021-09-24 | 中石化南京化工研究院有限公司 | Method for forming high-strength copper-silicon catalyst |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139497A (en) * | 1977-04-04 | 1979-02-13 | The Dow Chemical Company | Dehydrogenation catalyst tablet and method for making same |
| US4456703A (en) * | 1982-05-07 | 1984-06-26 | Exxon Research And Engineering Co. | High surface area nickel aluminate spinel catalyst for steam reforming |
| CN1347862A (en) * | 2001-10-08 | 2002-05-08 | 浙江衢化氟化学有限公司 | Gas and solid phase catalytic process of synthesizing methane chloride |
| CN1356166A (en) * | 2000-11-30 | 2002-07-03 | 南化集团研究院 | Process for preparing high-activity mother body of Cu-series catalyst for synthesizing methanol |
| CN1660493A (en) * | 2004-12-17 | 2005-08-31 | 南化集团研究院 | Catalyst for synthesizing copper based methanol and preparing method |
| CN101185905A (en) * | 2006-11-17 | 2008-05-28 | 南化集团研究院 | Method for producing catalyst copper zinc as active components |
-
2014
- 2014-12-11 CN CN201410753819.5A patent/CN105728062A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139497A (en) * | 1977-04-04 | 1979-02-13 | The Dow Chemical Company | Dehydrogenation catalyst tablet and method for making same |
| US4456703A (en) * | 1982-05-07 | 1984-06-26 | Exxon Research And Engineering Co. | High surface area nickel aluminate spinel catalyst for steam reforming |
| CN1356166A (en) * | 2000-11-30 | 2002-07-03 | 南化集团研究院 | Process for preparing high-activity mother body of Cu-series catalyst for synthesizing methanol |
| CN1347862A (en) * | 2001-10-08 | 2002-05-08 | 浙江衢化氟化学有限公司 | Gas and solid phase catalytic process of synthesizing methane chloride |
| CN1660493A (en) * | 2004-12-17 | 2005-08-31 | 南化集团研究院 | Catalyst for synthesizing copper based methanol and preparing method |
| CN101185905A (en) * | 2006-11-17 | 2008-05-28 | 南化集团研究院 | Method for producing catalyst copper zinc as active components |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108993519A (en) * | 2017-06-07 | 2018-12-14 | 中国石油化工股份有限公司 | A kind of preparation method of CuZnAl catalyst |
| CN108993519B (en) * | 2017-06-07 | 2021-07-30 | 中国石油化工股份有限公司 | Preparation method of copper-zinc-aluminum catalyst |
| CN113083311A (en) * | 2019-12-23 | 2021-07-09 | 中石化南京化工研究院有限公司 | Method for preparing carbon monoxide low-change catalyst by far infrared ray roasting |
| CN113426447A (en) * | 2021-06-22 | 2021-09-24 | 中石化南京化工研究院有限公司 | Method for forming high-strength copper-silicon catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ersöz | Fenton-like oxidation of Reactive Black 5 using rice husk ash based catalyst | |
| JP6417112B2 (en) | Wet masterbatch manufacturing method, wet masterbatch, rubber composition, and solid-liquid separation and dehydration apparatus for manufacturing wet masterbatch | |
| CN106747591B (en) | A kind of macropore holds the preparation method of alumina support | |
| KR102156133B1 (en) | Method for producing binder-free coal-based molding activated carbon | |
| CN102755897B (en) | Method for preparing catalyst for methanol dehydrogenation to methyl formate through step coprecipitation-spray process | |
| CN105728062A (en) | Production method for copper-zinc catalyst | |
| CN106082211A (en) | A kind of preparation method and its usage of lignin-base multi-stage porous carbon material | |
| CN106634049A (en) | Method for preparing nano calcium carbonate for weather-resistant ink | |
| CN102259853A (en) | Method for preparing spherical activated carbon and disc pelletizer | |
| CN103041870B (en) | Alumina supporter, and preparation method and application thereof | |
| CN107930644A (en) | A kind of high-performance methanol synthesis catalyst and preparation method thereof | |
| CN100556545C (en) | A kind of is the production method of the catalyst of active component with copper zinc | |
| CN103086704A (en) | Preparation method of high-porosity mineral-based ceramic membrane support | |
| CN102350360A (en) | Aldehyde gas phase hydrogenation catalyst and preparation method thereof | |
| CN109926037B (en) | Preparation of TiO from titanium-based adhesive2Method for shaping catalyst carrier | |
| CN104261468B (en) | A kind of manufacture method of low alkali catalysis titanium white | |
| TWI574918B (en) | Method for preparing precipitated silica comprising a high compaction step | |
| CN108906054A (en) | A kind of forming method using Fenton iron cement preparation ozone oxidation nbsCOD catalyst | |
| CN105107512A (en) | Method for preparing copper-based butyraldehyde hydrogenation butanol catalyzer through coprecipitation and spray-drying | |
| TW201400412A (en) | Process for preparing precipitated silica using a mixer or extruder | |
| CN106883097A (en) | High-ratio surface CO2The preparation method of catalytic hydrogenation catalyst for methanol | |
| CN109988671A (en) | A kind of edible oil dry method alkali refining agent and preparation method thereof and application method | |
| CN111377467A (en) | Alumina and preparation method thereof | |
| CN116037085B (en) | Macroporous alumina carrier and preparation method thereof | |
| CN106040088A (en) | Drying-method granulation process for improving particle strength |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |