CN201324628Y - Isophthalonitrile gasification device - Google Patents
Isophthalonitrile gasification device Download PDFInfo
- Publication number
- CN201324628Y CN201324628Y CNU2008202152494U CN200820215249U CN201324628Y CN 201324628 Y CN201324628 Y CN 201324628Y CN U2008202152494 U CNU2008202152494 U CN U2008202152494U CN 200820215249 U CN200820215249 U CN 200820215249U CN 201324628 Y CN201324628 Y CN 201324628Y
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- CN
- China
- Prior art keywords
- cylinder body
- isophthalonitrile
- dicyanobenzene
- cylindrical shell
- gasification device
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an isophthalonitrile gasification device which belongs to the technical field of chemical equipment. The isophthalonitrile gasification device is mainly used for the gasification of isophthalonitrile which is a chlorothalonil intermediate, and comprises a cylinder body (1) and a screen plate (2). The cylinder body (1) adopts the structure of a hole-enlargement cylinder body, the lower part is small, and the upper part is large; and the screen plate (2) is arranged in the large cylinder body at the upper part of the cylinder body (1). One on hand, the isophthalonitrile gasification device enlarges the upper part of the original cylindrical structure, so as to form the structure of two layers of cylinder bodies (the lower part is small and the upper part is large); as the volume of the cylinder body at the upper part is increased, the speed of air flow can be reduced, so as to lead polymers to be settled. On the other hand, one layer of screen plate is additionally arranged at the upper part of the larger cylinder body, so as to effectively prevent the polymers and impure waste residues from entering a mixer, thereby realizing the purposes of removing the polymers with high boiling point as well as the impure waste residues and prolonging the service life of a catalyst.
Description
(1) technical field
The utility model relates to a kind of m-dicyanobenzene gasifier, is mainly used in the gasification of Bravo intermediate m-dicyanobenzene.Belong to technical field of chemical.
(2) background technology
Bravo is the bactericide of a kind of efficient, safety, broad spectrum type, and its production technology is that m-dicyanobenzene and chlorine are carried out chlorination reaction generation Bravo (daconil M).Elder generation is with m-dicyanobenzene heat-conducting oil heating fusion in chlorination reaction, the m-dicyanobenzene of molten state is squeezed into the m-dicyanobenzene gasifier with measuring pump, with the further heating and gasifying of high temperature heat conductive oil is the gaseous state m-dicyanobenzene, being mixed into fluid bed with chlorine then reacts, therefore, the m-dicyanobenzene gasifier plays an important role in the Bravo reaction.
Original m-dicyanobenzene gasifier is straight tubular construction (as shown in Figure 1), during its operation, the fusion m-dicyanobenzene that is come by measuring pump enters the cylindrical shell middle and upper part from tangential direction, in cylindrical shell, pass through high temperature heat conductive oil partition heating and gasifying, the hot nitrogen that is entered by the bottom is brought blender and chlorine into as carrier gas and is mixed into fluid bed and carries out chlorination reaction then, thereby has realized the continuous gasification of dintrile.
Original m-dicyanobenzene gasifier can reach the gasification requirement, but have such problem in actual motion: m-dicyanobenzene can produce some higher boiling polymer and impurity waste residue in gasification, if be entrained to the inactivation that can cause catalyst in the fluidized-bed reactor, reduce catalyst service life greatly.
(3) summary of the invention
The utility model is to overcome above-mentioned deficiency, and a kind of higher boiling polymer and impurity waste residue removed is provided, and improves the catalyst m-dicyanobenzene gasifier in service life.
The purpose of this utility model is achieved in that a kind of m-dicyanobenzene gasifier, it is characterized in that it comprises cylindrical shell and web plate, and described cylindrical shell is the little down big two-layer tube structure that, and described web plate is arranged in the big cylindrical shell in described cylindrical shell top.
The utility model m-dicyanobenzene gasifier enlarges original tube structure top on the one hand, has formed time little big hole enlargement tube structure, owing to top cylindrical shell volume increases, thereby can reduce the speed of air-flow, and polymer is settled down; Add the last layer web plate on its big cylindrical shell top on the other hand, more effective polymer and the impurity waste residue of having stoped enters in the blender, thereby realized removal higher boiling polymer and impurity waste residue, improves catalyst purpose in service life.
(4) description of drawings
Fig. 1 is original m-dicyanobenzene gasifier structural representation.
Fig. 2 is the utility model m-dicyanobenzene gasifier structural representation.
Among the figure: cylindrical shell 1, web plate 2.
(5) specific embodiment
Referring to Fig. 1, the utility model m-dicyanobenzene gasifier comprises cylindrical shell 1 and web plate 2, and described cylindrical shell 1 is the little down big hole enlargement tube structure that, and described web plate 2 is arranged in the big cylindrical shell in described cylindrical shell 1 top.
Operation principle:
During operation, the fusion m-dicyanobenzene that is come by measuring pump enters little cylindrical shell middle and upper part, in cylindrical shell, pass through high temperature heat conductive oil partition heating and gasifying, hot nitrogen is blown into by the bottom as carrier gas, and the m-dicyanobenzene that makes gasification is with upwards operation of air-flow, when the m-dicyanobenzene of gasification enters big cylindrical shell, because volume increases, the flow velocity of air-flow reduces, and m-dicyanobenzene polymer and impurity waste residue settle down owing to the effect of gravity; The m-dicyanobenzene of remaining gasification continues to rise with air-flow, the web plate on big cylindrical shell top further filters air-flow, thereby reduce the polymer of the m-dicyanobenzene enter and the content of impurity, make that the activity of such catalysts influence reduces in the fluid bedreactors, prolong catalyst service life.
Facts have proved that behind this practical novel m-dicyanobenzene gasifier of use, service life brought up to 60 days by original 30 days by catalyst, greatly reduces cost, improved production efficiency.
Claims (1)
1, a kind of m-dicyanobenzene gasifier is characterized in that it comprises cylindrical shell (1) and web plate (2), and described cylindrical shell (1) is the little down big hole enlargement tube structure that, and described web plate (2) is arranged in the big cylindrical shell in described cylindrical shell (1) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202152494U CN201324628Y (en) | 2008-12-08 | 2008-12-08 | Isophthalonitrile gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202152494U CN201324628Y (en) | 2008-12-08 | 2008-12-08 | Isophthalonitrile gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201324628Y true CN201324628Y (en) | 2009-10-14 |
Family
ID=41176604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202152494U Expired - Lifetime CN201324628Y (en) | 2008-12-08 | 2008-12-08 | Isophthalonitrile gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201324628Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209720A1 (en) * | 2017-05-15 | 2018-11-22 | 江苏亨通光纤科技有限公司 | Optical fiber annealing extension tube |
-
2008
- 2008-12-08 CN CNU2008202152494U patent/CN201324628Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018209720A1 (en) * | 2017-05-15 | 2018-11-22 | 江苏亨通光纤科技有限公司 | Optical fiber annealing extension tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGYIN SULI CHEMICALS CO., LTD. Free format text: FORMER NAME: JIANGYIN SULI FINE CHEMICAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214444 No. 7 Huarun Road, Li Gang Town, Jiangsu, Jiangyin Patentee after: JIANGYIN SULI CHEMICAL CO., LTD. Address before: 214444 No. 7 Huarun Road, Li Gang Town, Jiangsu, Jiangyin Patentee before: Jingyin Suli Chemical Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
|
| CX01 | Expiry of patent term |