CN203370529U - Acid feeding device for preparing acyl-chloride type product - Google Patents
Acid feeding device for preparing acyl-chloride type product Download PDFInfo
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- CN203370529U CN203370529U CN201320330626.XU CN201320330626U CN203370529U CN 203370529 U CN203370529 U CN 203370529U CN 201320330626 U CN201320330626 U CN 201320330626U CN 203370529 U CN203370529 U CN 203370529U
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- acid
- feeding
- rotary screw
- feeding device
- screw rod
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Abstract
The utility model discloses an acid feeding device for preparing an acyl-chloride type product. The acid feeding device comprises a feeding bin (2), wherein the feeding bin is provided with a feeding port (4) and a discharging port (8). The acid feeding device also comprises a driving motor (5) and a rotary screw rod (6); the feeding port and the discharging port are provided with a feeding port valve (3) and a discharging port valve (7) respectively; the driving motor is connected with the rotary screw rod and is arranged at the upper end of the outer part of the feeding bin; the rotary screw rod is arranged in the feeding bin. The acid feeding device disclosed by the utility model has the beneficial effects that material acid is added in the feeding bin, the feeding bin is closed, and the material acid is thrown into a reaction kettle discontinuously by the action of the driving motor and the rotary screw rod, so that the condition that thionyl chloride is decomposed by moisture carried into the air in a process of throwing the material acid to cause reduction of the yield of products is avoided.
Description
Technical field
The utility model relates to a kind of acid adding device, particularly a kind of device of the acid adding for the preparation of the acyl chloride product.
Background technology
The acyl chloride product is as a kind of important chemical intermediate, mainly by thionyl chloride and corresponding acid reaction, makes, and for example 2,4,6-trimethylbenzene chloroacetic chloride is made by thionyl chloride and 2,4,6-trimethylbenzene acetic acidreaction.It is first thionyl chloride to be dropped into to reactor that at present a lot of companies prepare the acyl chloride product, under reaction temperature, discontinuity drops into acid, usually can produce a large amount of sulfur dioxide and hydrogen chloride in reaction, so reaction system need connect device for absorbing tail gas, in the discharge process of tail gas, reaction system is in micro-vacuum state.Because there is inside and outside differential pressure in reactor, in repeatedly throwing sour process, with the air of moisture, can enter in a large number reactor, easily cause thionyl chloride to decompose, affect product yield.
Summary of the invention
The problem existed for above-mentioned prior art, the utility model provides a kind of device of the acid adding for the preparation of the acyl chloride product, the device good airproof performance, the air do not had in the acid adding process in a large number with moisture enters reaction system, and avoiding thionyl chloride to decompose affects product yield.
To achieve these goals, the technical solution adopted in the utility model is: a kind of device of the acid adding for the preparation of the acyl chloride product, comprise feeding chamber, be provided with charging aperture and discharging opening on feeding chamber, also comprise drive motors, rotary screw, be respectively arranged with charging aperture valve, discharging opening valve on described charging aperture and discharging opening, described drive motors is connected with rotary screw, drive motors is arranged on the feeding chamber outer upper ends, and rotary screw is arranged at feeding chamber inside.
The beneficial effects of the utility model are: acid is joined in feeding chamber, the sealing feeding chamber, effect by drive motors and rotary screw is put in reactor sour discontinuity, avoids throwing sour process and brings airborne moisture into and cause thionyl chloride to decompose, the situation that product yield reduces.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, reactor, 2, feeding chamber, 3, the charging aperture valve, 4, charging aperture, 5, drive motors, 6, rotary screw, 7, the discharging opening valve, 8, discharging opening.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of device of the acid adding for the preparation of the acyl chloride product, comprise feeding chamber 2, be provided with charging aperture 4 and discharging opening 8 on feeding chamber 2, also comprise drive motors 5, rotary screw 6, be respectively arranged with charging aperture valve 3, discharging opening valve 7 on described charging aperture 4 and discharging opening 8, described drive motors 5 is connected with rotary screw 6, drive motors 5 is arranged on feeding chamber 2 outer upper ends, and rotary screw 6 is arranged at feeding chamber 2 inside.
While using this device to prepare the acyl chloride product, the acid adding device is fixedly mounted on reactor 1, opens the charging aperture valve 3 of feeding chamber 2, the required acid of reaction is put in feeding chamber 2 by charging aperture 4, close charging aperture valve 3, make in the feed bin of acid in sealing; Open drive motors 5 driven rotary screw rod 6 rotations, according to need of production, open discharging opening valve 7, the acid in feed bin enters in reactor 1 under the effect of rotary screw 6, rotary screw 6 in feed bin can prevent that acid adhesion is on bin wall, also can prevent the discharging opening 8 of acid obstruction feed bin; Reaction is closed discharging opening valve 7 after finishing.This device can make acid in the situation that be isolated from the outside, and joins slowly the preparation that participates in the acyl chloride product in reactor 1, avoids airborne moisture to enter in still the decomposition that causes thionyl chloride, the situation that productive rate reduces.
Claims (1)
1. the device of the acid adding for the preparation of the acyl chloride product, comprise feeding chamber (2), be provided with charging aperture (4) and discharging opening (8) on feeding chamber (2), it is characterized in that, also comprise drive motors (5), rotary screw (6), be respectively arranged with charging aperture valve (3), discharging opening valve (7) on described charging aperture (4) and discharging opening (8), described drive motors (5) is connected with rotary screw (6), drive motors (5) is arranged on feeding chamber (2) outer upper ends, and rotary screw (6) is arranged at feeding chamber (2) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330626.XU CN203370529U (en) | 2013-06-08 | 2013-06-08 | Acid feeding device for preparing acyl-chloride type product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330626.XU CN203370529U (en) | 2013-06-08 | 2013-06-08 | Acid feeding device for preparing acyl-chloride type product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370529U true CN203370529U (en) | 2014-01-01 |
Family
ID=49833086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320330626.XU Expired - Lifetime CN203370529U (en) | 2013-06-08 | 2013-06-08 | Acid feeding device for preparing acyl-chloride type product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370529U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285774A (en) * | 2013-06-08 | 2013-09-11 | 宿迁科思化学有限公司 | Acid adding device used for preparing acyl chloride product |
-
2013
- 2013-06-08 CN CN201320330626.XU patent/CN203370529U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285774A (en) * | 2013-06-08 | 2013-09-11 | 宿迁科思化学有限公司 | Acid adding device used for preparing acyl chloride product |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |