CN204973831U - Cyclohexanecarboxylic acid reation kettle - Google Patents
Cyclohexanecarboxylic acid reation kettle Download PDFInfo
- Publication number
- CN204973831U CN204973831U CN201520756097.9U CN201520756097U CN204973831U CN 204973831 U CN204973831 U CN 204973831U CN 201520756097 U CN201520756097 U CN 201520756097U CN 204973831 U CN204973831 U CN 204973831U
- Authority
- CN
- China
- Prior art keywords
- low head
- cyclohexane
- carboxylic acid
- upper cover
- barrel
- 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.)
- Active
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a cyclohexanecarboxylic acid reation kettle relates to cyclohexanecarboxylic acid equipment technical field. The device includes upper cover, barrel and low head, and the upper cover is equipped with material import, nitrogen gas import, drain and temperature measuring device, is equipped with the sight glass on the drain, is equipped with condenser tube in the barrel, and terminal water inlet and the delivery port of condenser tube is established in the barrel outside, material export intercommunication on inside agitating unit and the micro porous filtration stick of being equipped with of barrel, filter stick lower extreme and low head, and the low head is equipped with the hydrogen import. The utility model discloses nimble accuse temperature improves discharging efficiency, and the catalyst loss reduction, practices thrift the cost.
Description
Technical field
The utility model relates to cyclohexane-carboxylic acid equipment technical field.
Background technology
Cyclohexane-carboxylic acid is a kind of important Organic Chemicals, usual employing benzoic acid catalytic hydrogenation synthesis, itself be good light curing agent, also can be used for treating the synthesis of blood fluke new drug praziquantel and the intermediate of synthetic drug, be with a wide range of applications in new material and medicament research and development.Benzoic fusing point is 122.13 DEG C, melting be liquid benzoic acid under Pd/C catalyst action, in reactor, hydrogenating reduction prepares cyclohexane-carboxylic acid.Pd/C catalyst is black solid, and can lose efficacy under higher than the environment of 170 DEG C, so require that the temperature in reactor must be strict controlled in certain limit 160-170 DEG C, thus guarantees the utilization rate of catalyst and the output capacity of cyclohexane-carboxylic acid.In addition, catalyst P d/C is a kind of more valuable article, and existing reactor easily causes catalyst comparatively lossy when producing, and can cause huge economic loss; And temperature is wayward, the problem that there is catalyst failure He yield poorly, substantially increases production cost.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, a kind of cyclohexane-carboxylic acid reactor is provided, flexible modulation temperature, strict control reaction temperature, in 160-170 DEG C, makes catalyst keep active, avoids losing efficacy, improve the output capacity of cyclohexane-carboxylic acid, and reduce catalyst and get rid of reactor with discharging, reduce catalyst attrition, reduce production cost.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of cyclohexane-carboxylic acid reactor, comprise upper cover, cylindrical shell and low head, it is characterized in that, upper cover is provided with material inlet, nitrogen inlet, drain and temperature measuring equipment, drain is provided with visor, cooling water pipe is provided with in cylindrical shell, the water inlet of cooling water pipe end and delivery port are located at outside cylindrical shell, inner barrel is provided with agitating device and micro porous filtration rod, micro porous filtration rod lower end is communicated with the material outlet on low head, and low head is provided with hydrogen inlet.
Preferably, described cooling water pipe is coiled in cylinder inboard wall from top to bottom.
Preferably, the temperature-measuring range of described temperature measuring equipment is 0 DEG C-300 DEG C.
Preferably, the material of described micro porous filtration rod is 316 stainless steels.
Preferably, described agitating device is arranged on reactor middle and lower part, and upper end is located on upper cover.
The beneficial effect adopting technique scheme to produce is: the utility model is provided with visor on drain, in the process of discharging waste gas, operating personnel monitor emission gases in real time by visor, black Pd/C catalyst is avoided to discharge reactor with waste gas, operating personnel are by the flow of cooling water in controlled cooling model water pipe, regulate reactor temperature, strict control its within the scope of 160-170 DEG C, avoid catalyst failure, thus improve cyclohexane-carboxylic acid output capacity.In addition, material filters through micro porous filtration rod before discharge reactor, can stay in reactor by the catalyst filtration be mingled with in material, reduces catalyst attrition, reduces production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the utility model embodiment micro porous filtration bar structure schematic diagram.
In figure: 1, material inlet; 2, nitrogen inlet; 3, drain; 4, visor; 5, temperature measuring equipment; 6, agitating device; 7, micro porous filtration rod; 8, cooling water pipe; 9, water inlet; 10, delivery port; 11, hydrogen inlet; 12, material outlet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1, a kind of cyclohexane-carboxylic acid reactor, comprises upper cover, cylindrical shell and low head, and upper cover is provided with material inlet 1, nitrogen inlet 2, drain 3 and temperature measuring equipment 5; The temperature-measuring range of temperature measuring equipment 5 is 0 DEG C-300 DEG C; Drain 3 is provided with visor 4; Be provided with cooling water pipe 8 in cylindrical shell, be coiled in cylinder inboard wall from top to bottom; Water inlet 9 and the delivery port 10 of cooling water pipe 8 end are located at outside cylindrical shell; Inner barrel is provided with agitating device 6 and micro porous filtration rod 7; Agitating device 6 is arranged on reactor middle and lower part, and upper end is located on upper cover; The material of micro porous filtration rod 7 is 316 stainless steels, and micro porous filtration rod 7 lower ends are communicated with the material outlet 12 on low head, and low head is provided with hydrogen inlet 11.
In use, the benzoic acid after melting puts into inner barrel through material inlet 1 to the utility model, passes into hydrogen through hydrogen inlet 11 in cylindrical shell, and the hydrogen of non-complete reaction and a small amount of material steam mixed discharge reactor via drain 3.In the process of discharging waste gas, operating personnel monitor the color of emission gases in real time by observing visor 4, avoid the catalyst of black to discharge.Once find that catalyst is discharged, then stop the chemical reaction in reactor immediately, after the material of appropriate amount to be removed, restart reaction.In course of reaction, monitored by temperature measuring equipment 5 pairs of reactor temperatures, and regulate cooling water pipe 8 inner cooling water flow, reaction temperature is controlled at 160-170 DEG C.Concrete adjustment process is: when temperature is higher, regulates cooling water flow to make reactor temperature be reduced to lower than 170 DEG C; When temperature is lower, in cooling water pipe 8, pass into steam, temperature in the kettle is increased to higher than 160 DEG C.When reaction terminates rear discharging, in reactor, pass into nitrogen through nitrogen inlet 2, pressure is applied to material, make material after micro porous filtration rod 7 filters, discharge reactor by material outlet 12.
The utility model in use, for making material as far as possible fully react, uses agitating device 6 pairs of materials to stir.Agitating device 6 can be common paddle, anchor formula agitating device.As shown in Figure 1 and Figure 2, micro porous filtration rod 7 is column, is distributed in inside cooling water pipe 8, and the circle that distributes inside cooling water pipe 8.Micro porous filtration rod 7 is provided with some micropores, micro-pore diameter is 1 μm, after reaction terminates, in reactor, pass into nitrogen through nitrogen inlet 2, pressure is applied to material, make material enter micro porous filtration rod 7 by the micropore on micro porous filtration rod 7 inner, and then discharge reactor through material outlet, meanwhile, solid Pd/C catalyst particle diameter is greater than micro-pore diameter, stays in reactor.
Cyclohexane-carboxylic acid reactor described in the present embodiment, by visor, emission gases is monitored in real time in the process of discharging waste gas, black Pd/C catalyst is avoided to discharge reactor with waste gas, operating personnel are by the flow of cooling water in controlled cooling model water pipe, regulate reactor temperature, be strict controlled within the scope of 160-170 DEG C, avoid catalyst failure, improve cyclohexane-carboxylic acid output capacity.In addition, material filters through micro porous filtration rod before discharge reactor, can stay in reactor by the catalyst filtration be mingled with in material, reduces catalyst attrition, reduces production cost.Further, utilize nitrogen, to the pressure that material produces, material is discharged reactor, replace and utilize pump to extract material, simplify draw operation.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (5)
1. a cyclohexane-carboxylic acid reactor, comprise upper cover, cylindrical shell and low head, it is characterized in that, upper cover is provided with material inlet (1), nitrogen inlet (2), drain (3) and temperature measuring equipment (5), drain (3) is provided with visor (4), cooling water pipe (8) is provided with in cylindrical shell, water inlet (9) and the delivery port (10) of cooling water pipe (8) end are located at outside cylindrical shell, inner barrel is provided with agitating device (6) and micro porous filtration rod (7), micro porous filtration rod (7) lower end is communicated with the material outlet (12) on low head, and low head is provided with hydrogen inlet (11).
2. a kind of cyclohexane-carboxylic acid reactor according to claim 1, is characterized in that, described cooling water pipe (8) is coiled in cylinder inboard wall from top to bottom.
3. a kind of cyclohexane-carboxylic acid reactor according to claim 1, is characterized in that, the temperature-measuring range of described temperature measuring equipment (5) is 0 DEG C-300 DEG C.
4. a kind of cyclohexane-carboxylic acid reactor according to claim 1, is characterized in that, the material of described micro porous filtration rod (7) is 316 stainless steels.
5. a kind of cyclohexane-carboxylic acid reactor according to claim 1, is characterized in that, described agitating device (6) is arranged on reactor middle and lower part, and upper end is located on upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756097.9U CN204973831U (en) | 2015-09-28 | 2015-09-28 | Cyclohexanecarboxylic acid reation kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520756097.9U CN204973831U (en) | 2015-09-28 | 2015-09-28 | Cyclohexanecarboxylic acid reation kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204973831U true CN204973831U (en) | 2016-01-20 |
Family
ID=55108251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520756097.9U Active CN204973831U (en) | 2015-09-28 | 2015-09-28 | Cyclohexanecarboxylic acid reation kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204973831U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076696A (en) * | 2020-09-11 | 2020-12-15 | 吉化集团油脂化工有限公司 | Preparation system and preparation method of polycarboxylate superplasticizer macromonomer raw material initiator |
| CN114805053A (en) * | 2022-05-11 | 2022-07-29 | 石家庄力晶科技发展有限公司 | Method and apparatus for producing cyclohexane carboxylic acid |
-
2015
- 2015-09-28 CN CN201520756097.9U patent/CN204973831U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112076696A (en) * | 2020-09-11 | 2020-12-15 | 吉化集团油脂化工有限公司 | Preparation system and preparation method of polycarboxylate superplasticizer macromonomer raw material initiator |
| CN114805053A (en) * | 2022-05-11 | 2022-07-29 | 石家庄力晶科技发展有限公司 | Method and apparatus for producing cyclohexane carboxylic acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204973831U (en) | Cyclohexanecarboxylic acid reation kettle | |
| CN103664642B (en) | A kind of method adopting microchannel reaction unit to prepare Ortho-Chloro aniline | |
| CN104710295B (en) | A kind of continuous catalysis ozone oxidation cinnamic aldehyde is the preparation method of benzaldehyde | |
| CN106554281A (en) | A kind of method that methyl benzoate hydrogenation reaction produces cyclohexanecarboxylic acid methyl esters | |
| CN104003865A (en) | Method for catalytic oxidation of 1,2-propylene glycol at normal pressure | |
| CN106966879B (en) | Equipment and process for producing acetyl n-propanol by kettle type continuous hydrogenation | |
| CN110052049B (en) | Equipment and method for producing acetyl n-propanol by continuous hydrogenation of 2-methyl furan | |
| CN109020811A (en) | The method for preparing propionic ester using microreactor | |
| CN104059035A (en) | Furfural catalytic hydrogenation method under supercritical carbon dioxide and method for preparing catalysts | |
| CN107628929B (en) | Production process for preparing 1, 2-propylene glycol by glycerol hydrogenolysis | |
| CN104402687A (en) | Technology for production of cyclohexanone by phenol hydrogenation | |
| CN105582859A (en) | Method of preparing ethanol amine through catalytic ammoniation | |
| CN210145530U (en) | Equipment for producing acetyl n-propanol by continuous hydrogenation of 2-methylfuran | |
| CN109180455B (en) | Production process for preparing cyclohexanone by phenol liquid phase hydrogenation | |
| CN204342435U (en) | The hydrogenation fluidized-bed reactor of anthraquinone legal system hydrogen peroxide | |
| CN105749850B (en) | A kind of special purpose reactor of controlled syntheses parachlorotoluene | |
| CN208661155U (en) | A kind of Oscillatory Flow Reactor | |
| CN104311404A (en) | Method for producing cinnamyl aldehyde | |
| CN105670804A (en) | Equipment and method for preparing biodiesel under low-temperature gas-phase methanol conditions | |
| CN205517745U (en) | A energy -concerving and environment -protective type acylation reaction device for preparing benzophenone class compound | |
| CN204544144U (en) | A kind of thermosol still with microporous filter | |
| CN110698333B (en) | Method for continuously synthesizing o-phthalaldehyde by using microchannel reaction device | |
| CN203508024U (en) | Gas flow circulating reaction device for preparing glyoxylic acid by oxygen oxidation | |
| CN203123948U (en) | Catalytic hydrogenation equipment with built-in filter | |
| CN102976370A (en) | Hydrogen magnesium carbonate solution continuous pyrolysis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |