CN202010545U - Urotropine reaction kettle - Google Patents
Urotropine reaction kettle Download PDFInfo
- Publication number
- CN202010545U CN202010545U CN2011200992210U CN201120099221U CN202010545U CN 202010545 U CN202010545 U CN 202010545U CN 2011200992210 U CN2011200992210 U CN 2011200992210U CN 201120099221 U CN201120099221 U CN 201120099221U CN 202010545 U CN202010545 U CN 202010545U
- Authority
- CN
- China
- Prior art keywords
- kettle
- kettle cover
- cover
- gas phase
- reaction kettle
- 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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- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a urotropine reaction kettle which comprises a kettle body, an interlayer, a kettle cover and a gas phase passage arranged on the kettle cover, wherein a baffle cylinder extends upward from the upper mouth of the kettle body; an annular cylinder is arranged inside the kettle cover; after the kettle cover is closed at the upper mouth of the kettle body, a channel with U-shaped cross section is formed among the baffle cylinder, the annular cylinder and the kettle cover; and a return pipe is arranged at the bottom of the channel. The urotropine reaction kettle has the benefit that the urotropine reaction kettle has a simple structure, and can effectively prevent a mother liquid from entering the gas phase passage, increase the product yield and reduce the cost for tail gas treatment.
Description
Technical field
The utility model relates to the production equipment of methenamine, particularly a kind of methenamine reactor.
Background technology
Methenamine is a kind of important chemical product, can be used as the curing agent of phenoplasts, the catalyst of aminoplast, the promoter of the vulcanization of rubber; Industrial at other, can be used as the anti-piping compound of textile production, the anticorrisive agent of food processing, diuretics pharmaceutically; After the nitrated processing a kind of important high explosives; Can be used as pesticide on the agricultural again, also can be used as the phosgene absorbent of breathing mask etc.
The industrially preparing process of methenamine is liquid phase method and vapor phase method.What suitability for industrialized production was commonly used is vapor phase method, vapor phase method is that ammonia and formaldehyde gas enter reactor together, generate methenamine with the circulating mother liquor generation condensation reaction in the still, the methenamine mother liquor that generates is through concentrated, crystallization, separation, wet methenamine after the separation obtains methenamine finished product and packing warehouse-in by pneumatic conveying drying, and isolated mother liquor returns in the reactor recycling after purified treatment again.
At present, the reactor of use is simple in structure, and steam is directly detached by gas phase channel, when the mother liquor liquid level when gas phase channel is nearer, steam can be taken away partial mother liquid and enter gas phase channel, has so not only reduced the yield of methenamine, and has increased the cost of vent gas treatment.
The utility model content
The purpose of this utility model is that a kind of methenamine reactor of avoiding mother liquor to enter gas phase channel will be provided.
In order to achieve the above object, the technical solution of the utility model is: a kind of methenamine reactor, comprise kettle, interlayer, kettle cover, be arranged on the gas phase channel on the kettle cover, the kettle retaining tube that extends upward suitable for reading, one ring tube is set in the kettle cover, kettle cover and kettle are suitable for reading cover after, form the path that the cross section is the U type between described retaining tube, ring tube, the kettle cover, described path is provided with return duct in the bottom.
The beneficial effects of the utility model are: reactor of the present utility model is simple in structure, can effectively avoid mother liquor to enter gas phase channel, has improved product yield, has reduced the cost of vent gas treatment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, a kind of methenamine reactor, comprise kettle 1, interlayer 2, kettle cover 3, be arranged on the gas phase channel 4 on the kettle cover 3, the kettle 1 retaining tube 6 that extends upward suitable for reading, one ring tube 5 is set in the kettle cover 3, after kettle cover 3 and kettle 1 suitable for reading the covering, the formation cross section is the path of U type between described retaining tube 6, ring tube 5, the kettle cover 3, and described path is provided with return duct 7 in the bottom.Return duct 7 outlets are goed deep under the mother liquor liquid level, and before mother liquor entered gas phase channel 4, through the obstruct of U type path, mother liquor can be in return duct 7 be back to kettle 1.
Claims (1)
1. methenamine reactor, comprise kettle, interlayer, kettle cover, be arranged on the gas phase channel on the kettle cover, it is characterized in that: kettle is suitable for reading to extend upward and forms a retaining tube, one ring tube is set in the kettle cover, kettle cover and kettle are suitable for reading cover after, form the path that the cross section is the U type between described retaining tube, ring tube, the kettle cover, described path is provided with return duct in the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200992210U CN202010545U (en) | 2011-04-07 | 2011-04-07 | Urotropine reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200992210U CN202010545U (en) | 2011-04-07 | 2011-04-07 | Urotropine reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202010545U true CN202010545U (en) | 2011-10-19 |
Family
ID=44781150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200992210U Expired - Lifetime CN202010545U (en) | 2011-04-07 | 2011-04-07 | Urotropine reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202010545U (en) |
-
2011
- 2011-04-07 CN CN2011200992210U patent/CN202010545U/en not_active Expired - Lifetime
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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: 20111019 |
|
| CX01 | Expiry of patent term |