CN201543417U - Device for continuously preparing 2,2,4-trimethyl-1,2-dihydrogenated quinoline - Google Patents
Device for continuously preparing 2,2,4-trimethyl-1,2-dihydrogenated quinoline Download PDFInfo
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- CN201543417U CN201543417U CN2009200487322U CN200920048732U CN201543417U CN 201543417 U CN201543417 U CN 201543417U CN 2009200487322 U CN2009200487322 U CN 2009200487322U CN 200920048732 U CN200920048732 U CN 200920048732U CN 201543417 U CN201543417 U CN 201543417U
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Abstract
The utility model belongs to the technical field of chemical equipment, and relates to a device for continuously preparing 2, 2, 4-trimethyl-1, 2-dihydrogenated quinoline through taking solid acid as catalytic agent. The device comprises a tube-type reactor capable of continuous condensation; a gas phase discharge port is formed at the upper part of the reactor; a liquid phase discharge port is formed at the middle part of the device; a continuous quantitative feed port and a catalytic agent discharge port are formed at the lower part of the device; and solid acid catalytic agent insulating layers are mounted at the discharge ports at the middle and the lower parts of the reactor. The device achieves the serialization of charging and discharging and the stable production. Thereby guaranteeing the stability of product quality and reducing the labor intensity.
Description
Technical field: the utility model belongs to technical field of chemical, and relating to a kind of is catalyst preparation 2,2 continuously with the solid acid, 4-trimethyl-1, the device of 2-dihyaroquinoline.
Background technology: 2,2,4-trimethyl-1,2-dihyaroquinoline are the monomers of preparation anti-aging agent RD, also are the monomer of preparation aging inhibitor FR, and be present 2,2,4-trimethyl-1, the synthesis device of 2-dihyaroquinoline mainly are tank reactors intermittently.The process conditions instability, unstable product quality, labour intensity is relatively large.
Summary of the invention: the utility model purpose is the deficiency that overcomes existing equipment, makes 2,2,4-trimethyl-1, and the preparation of 2-dihyaroquinoline reduces labour intensity by intermittently becoming continuously, guarantees to produce stable carrying out.
The utility model is achieved like this: but it mainly comprises the tubular reactor of continuous condensating, and reactor top is provided with the gas phase discharging opening; The device middle part is provided with the liquid phase discharging opening; The device bottom is provided with continuous and quantitative charging aperture, catalyst discharging opening; Device middle part and bottom discharging opening all are equipped with the solid acid catalyst separation layer.
Usually the utility model device lower isolation layer is that stainless steel cloth is positioned between the corrosion resistant plate of punching, and the middle part separation layer is placed stainless steel cloth for the discharging opening flange.
Described device is provided with heating facility and temperature control element, and heating facility is generally heat-conducting oil heating, Steam Heating or Electric heating; Heating facility is sandwich-type or shell and tube; In the middle of reactor temperature-measuring casing is housed, the gas phase discharging opening is equipped with condenser.
The utlity model has following characteristics:
1. the catalyst used of aniline and condensation of acetone can change original hydrochloric acid into solid acid;
2. former intermittence, tank reactor changed continuous tubular reactor into;
3. reaction raw materials aniline is entered in the continuous tubular reactor that solid acid catalyst is housed by material inlet by the measuring pump metering; . by heating facility rising temperature, reach uniform temperature after, reaction raw materials aniline and acetone enter reactor by material inlet by a certain percentage and carry out condensation reaction; Acetone is discharged by the gas phase discharging opening, enters by the condenser cooling and reclaims the acetone basin; The reaction condensation liquid is discharged by the liquid phase discharging opening, enters the condensation liquid basin; Reaction temperature is controlled by temperature element.
The beneficial effects of the utility model are, have not only realized the serialization of charging and discharging, and guaranteed to produce stable, thereby guaranteed the stable of product quality, also reduced labour intensity.
Description of drawings: accompanying drawing 1 is the structural representation sketch of the utility model embodiment.
1-gas phase discharging opening in the accompanying drawing; The 2-support; 3-liquid phase discharging opening; The 4-continuous tubular reactor; The 5-separation layer; The 6-material inlet; 7-orifice plate support; 8-catalyst discharging opening; The 9-temperature-measuring casing.
The specific embodiment: the utility model is further specified below in conjunction with drawings and Examples.
Embodiment: present embodiment is that this device is catalyst with the solid acid, is applied in aniline and the condensation of acetone process.But tubular reactor 4 tops of continuous condensating are provided with gas phase discharging opening 1; Reactor 4 middle parts are provided with liquid phase discharging opening 3; Reactor 4 bottoms are provided with continuous and quantitative charging aperture 6, catalyst discharging opening 8; Reactor 4 middle parts and bottom discharging opening all are equipped with solid acid catalyst separation layer 5.Be provided with temperature-measuring casing 9 in the middle of the reactor; Also be provided with support 2 and orifice plate support 7 on the reactor 4.
In accompanying drawing 1, reaction raw materials aniline is entered in the continuous tubular reactor 4 that solid acid catalyst is housed by material inlet 6 by the measuring pump metering, by heating facility rising temperature, after reaching uniform temperature, reaction raw materials aniline and acetone enter reactor 4 by material inlet 6 by a certain percentage and carry out condensation reaction, reclaim acetone and discharge, enter by the condenser cooling and reclaim the acetone basin by gas phase discharging opening 1; The reaction condensation liquid is discharged by liquid phase discharging opening 3, enters the condensation liquid basin; Reaction temperature is by the temperature element control of 9 li of temperature-measuring casings.
Claims (5)
1. preparation 2,2 continuously, 4-trimethyl-1, the device of 2-dihyaroquinoline, but it is characterized in that it mainly comprises the tubular reactor of continuous condensating, reactor top is provided with the gas phase discharging opening; The device middle part is provided with the liquid phase discharging opening; The device bottom is provided with continuous and quantitative charging aperture, catalyst discharging opening; Reactor middle part and bottom discharging opening all are equipped with the solid acid catalyst separation layer.
2. device according to claim 2 is characterized in that the lower isolation layer is that stainless steel cloth is positioned between the corrosion resistant plate of punching, and the middle part separation layer is placed stainless steel cloth for the discharging opening flange.
3. device according to claim 1 is characterized in that this device has heating facility and temperature control element.
4. according to claim 1 or 3 described devices, it is characterized in that heating facility is heat-conducting oil heating, Steam Heating or electrical heating.
5. according to claim 1 or 3 described devices, it is characterized in that heating facility is sandwich-type or shell and tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200487322U CN201543417U (en) | 2009-10-28 | 2009-10-28 | Device for continuously preparing 2,2,4-trimethyl-1,2-dihydrogenated quinoline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200487322U CN201543417U (en) | 2009-10-28 | 2009-10-28 | Device for continuously preparing 2,2,4-trimethyl-1,2-dihydrogenated quinoline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201543417U true CN201543417U (en) | 2010-08-11 |
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ID=42598574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200487322U Expired - Lifetime CN201543417U (en) | 2009-10-28 | 2009-10-28 | Device for continuously preparing 2,2,4-trimethyl-1,2-dihydrogenated quinoline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201543417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348189A (en) * | 2014-08-20 | 2016-02-24 | 中国石油化工股份有限公司 | Continuous 2,2,4-trimethyl-1,2-dihydroquinoline preparation method |
| CN114773265A (en) * | 2022-06-21 | 2022-07-22 | 科迈(天津)建设工程股份有限公司 | Synthesis process of rubber antioxidant RD |
-
2009
- 2009-10-28 CN CN2009200487322U patent/CN201543417U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348189A (en) * | 2014-08-20 | 2016-02-24 | 中国石油化工股份有限公司 | Continuous 2,2,4-trimethyl-1,2-dihydroquinoline preparation method |
| CN114773265A (en) * | 2022-06-21 | 2022-07-22 | 科迈(天津)建设工程股份有限公司 | Synthesis process of rubber antioxidant RD |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |