Continuous production system for dialkyl tertiary amine quaternary ammonium salt

Abstract

The utility model relates to the technical field of dialkyl tertiary amine quaternary ammonium salt production, in particular to a continuous production system of dialkyl tertiary amine quaternary ammonium salt. The continuous production system of the dialkyl tertiary amine quaternary ammonium salt comprises a premixing kettle and a reaction kettle, the premixing kettle is connected with the reaction kettle through a production pump, a premixing kettle coil pipe is arranged in the premixing kettle, a reaction kettle coil pipe is arranged in the reaction kettle, the reaction kettle is connected with a condensation tank through a gas phase guide pipe, an outer side sleeve pipe is arranged on the outer side of the gas phase guide pipe, and the outer side sleeve pipe is connected with the condensation tank. And the outer sleeve is connected with a condensate storage tank. According to the system, through the arrangement of the premixing kettle, raw materials in the premixing kettle are preheated by waste heat of heat conduction oil in a coil pipe of the reaction kettle, so that the feeding temperature is increased, and the reaction is quicker; the condensation tank, the outer side casing pipe and the gas phase guide pipe are matched for use, a gas phase is condensed, and condensed liquid enters the condensate storage tank, so that the liquid carrying amount when the gas phase is fed again is greatly reduced, the feeding purity is greatly improved, and the production efficiency is obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of double alkyl tertiary amine quaternary ammonium salt production, specifically to double alkyl tertiary amine quaternary ammonium salt continuous production system. BACKGROUND

[0002] Double alkyl tertiary amine quaternary ammonium salt is a kind of compound with two long carbon chain alkyl and quaternary ammonium cation, they are usually used as cationic surfactant, widely used in multiple fields. Double alkyl tertiary amine quaternary ammonium salt can be synthesized by double alkyl methyl tertiary amine and halogenated alkyl as raw material, and the synthesis method is chloroalkyl amination method of fatty alcohol.

[0003] In actual production, the existing device produces double alkyl tertiary amine quaternary ammonium salt with low efficiency, mainly as follows: normal temperature liquid phase material directly enters the reaction kettle, which causes the local temperature of the reaction kettle to drop, and the reaction is uneven;Unreacted gas phase material is directly returned to the feed pipe, which carries a lot of liquid phase, causing the gas phase feed to be impure;The product contains solid catalyst impurities, affecting the product quality. UTILITY MODEL CONTENT

[0004] According to the deficiencies in the above prior art, the purpose of the utility model is to provide a double alkyl tertiary amine quaternary ammonium salt continuous production system, by the setting of premix kettle, the waste heat of heat transfer oil in the reaction kettle coil is used to preheat the raw materials in the premix kettle, the feed temperature is improved, and the reaction is more rapid;By the cooperation of condensing tank, outer sleeve and gas phase guide pipe, the gas phase is condensed, the liquid under condensation enters the condensate storage tank, the liquid amount carried by the gas phase when feeding again is greatly reduced, the feed purity is greatly improved, and the production efficiency is obviously improved;By the setting of filter, the solid catalyst impurities in the product are filtered out, and the product quality is improved.

[0005] The utility model is implemented by the following technical solutions:

[0006] The double alkyl tertiary amine quaternary ammonium salt continuous production system comprises a premix kettle and a reaction kettle, the premix kettle is connected with the reaction kettle through a production pump, the inside of the premix kettle is provided with a premix kettle coil, the inside of the reaction kettle is provided with a reaction kettle coil, the reaction kettle is connected with a condensing tank through a gas phase guide pipe, the outside of the gas phase guide pipe is provided with an outer sleeve, and the outer sleeve is connected with a condensate storage tank.

[0007] The outer sleeve is connected with the bottom surface of the condensing tank, and the liquid phase under condensation enters the condensate storage tank by gravity.

[0008] The inside of the premix kettle coil is provided with a premix kettle stirrer, the inside of the reaction kettle coil is provided with a reaction kettle stirrer, and the reaction kettle coil is connected with the premix kettle coil through a pipeline.

[0009] The reaction kettle is connected with a filter through a filter pipeline, and the inside of the filter is provided with a filter plate.

[0010] The vertical wall of the filter is provided with a filter outlet above the filter plate. When the filter efficiency is reduced, the driving motor is started to remove the impurities attached to the lower part of the filter plate by rotating the scraper.

[0011] The lower part of the filter plate is provided with a rotating scraper driven by the driving motor, and the upper edge of the rotating scraper is tangent to the lower edge of the filter plate.

[0012] The lower part of the reactor agitator is provided with a gas phase distribution disc, the gas phase distribution disc is connected with a gas phase feeding pipeline, and the gas phase distribution disc is provided with a gas outlet.

[0013] The outer side of the condenser is provided with a cooling jacket, the condenser is connected with a temporary storage tank, the temporary storage tank is connected with the gas phase feeding pipeline through a pipeline, and a one-way valve is arranged between the temporary storage tank and the gas phase feeding pipeline.

[0014] The gas phase pipeline is connected with the reactor and the condenser, the outer side sleeve is connected with the condenser and the condensate storage tank, and the height of the gas phase pipeline is higher than that of the outer side sleeve.

[0015] The working principle of the utility model is as follows:

[0016] The liquid phase raw material enters the premix kettle, the premix kettle agitator and the premix kettle coil pipe start to work, then enters the reactor through the production pump, the gas phase enters the reactor through the gas phase distribution disc, and the reactor agitator and the reactor coil pipe start to work; during the reaction, the gas phase in the reactor enters the condenser through the gas phase pipeline for condensation, the condensed liquid phase enters the condensate storage tank through the outer side sleeve, and the gas phase enters the temporary storage tank; after the reaction is completed, the product enters the filter through the filter pipeline, when the filter efficiency is reduced, the driving motor is started, and the impurities attached to the lower part of the filter plate are removed by rotating the scraper.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a continuous production system of double alkyl tertiary amine quaternary ammonium salt, through the setting of premix kettle, the waste heat of the heat conducting oil in the reactor coil pipe is used to preheat the raw material in the premix kettle, the feed temperature is improved, and the reaction is more rapid; through the cooperation of the condenser, the outer side sleeve and the gas phase pipeline, the gas phase is condensed, the condensed liquid enters the condensate storage tank, the liquid amount of the gas phase is greatly reduced when feeding again, the purity of the feed is greatly improved, the production efficiency is obviously improved; through the setting of the filter, the solid catalyst impurities in the product are filtered out, and the product quality is improved. DRAWINGS

[0019] Figure 1 It is a structure schematic view of the continuous production system of the double alkyl tertiary amine quaternary ammonium salt of the utility model.

[0020] Figure 2 It is a structure schematic view of the gas phase distribution disc of the utility model.

[0021] In the figure: 1, pre-mixing kettle; 2, reaction kettle; 3, filter; 4, pre-mixing kettle stirrer; 5, pre-mixing kettle coil; 6, production pump; 7, reaction kettle stirrer; 8, reaction kettle coil; 9, gas phase distribution disc; 10, condensing tank; 11, temporary storage tank; 12, condensate storage tank; 13, filter plate; 14, inlet filter pipeline; 15, filter outlet; 16, rotary scraper; 17, driving motor; 18, outer sleeve; 19, gas phase guide pipe; 20, cooling sleeve; 21, gas phase feed pipeline; 22, gas outlet hole. DETAILED DESCRIPTION

[0022] In order to make the utility model purpose, technical scheme more clearly, below, combining with the drawing, to the utility model make further detailed description.

[0023] Example 1

[0024] As Figure 1 shown, the continuous production system of double alkyl tertiary amine quaternary ammonium salt, including pre-mixing kettle 1, reaction kettle 2, pre-mixing kettle 1 is connected with reaction kettle 2 by production pump 6, the inside of pre-mixing kettle 1 is equipped with pre-mixing kettle coil 5, the inside of reaction kettle 2 is equipped with reaction kettle coil 8, reaction kettle 2 is connected with condensing tank 10 by gas phase guide pipe 19, the outside of gas phase guide pipe 19 is equipped with outer sleeve 18, and outer sleeve 18 is connected with condensate storage tank 12. The bottom surface of outer sleeve 18 and condensing tank 10 are connected, and the liquid phase under condensation enters condensate storage tank 12 by gravity. The inside of pre-mixing kettle coil 5 is equipped with pre-mixing kettle stirrer 4, the inside of reaction kettle coil 8 is equipped with reaction kettle stirrer 7, and reaction kettle coil 8 is connected with pre-mixing kettle coil 5 by pipeline. Reaction kettle 2 is connected with filter 3 by inlet filter pipeline 14, and the inside of filter 3 is equipped with filter plate 13. The vertical wall of filter 3 is equipped with filter outlet 15, and filter outlet 15 is located above filter plate 13. The lower side of filter plate 13 is equipped with rotary scraper 16 driven by driving motor 17, and the upper edge of rotary scraper 16 is tangent to the lower edge of filter plate 13. As Figure 2As shown, the lower part of the reactor agitator 7 is provided with a gas distribution tray 9, the gas distribution tray 9 is connected with a gas phase feeding pipeline 21, and the gas distribution tray 9 is provided with gas outlet holes 22. The outer side of the condenser tank 10 is provided with a cooling jacket 20, the condenser tank 10 is connected with a temporary storage tank 11, the temporary storage tank 11 is connected with the gas phase feeding pipeline 21 through a pipeline, and a one-way valve is arranged between the temporary storage tank 11 and the gas phase feeding pipeline 21. The gas phase pipeline 19 is connected with the reactor 2 and the condenser tank 10, the outer side sleeve 18 is connected with the condenser tank 10 and the condensate storage tank 12, and the height of the gas phase pipeline 19 is higher than that of the outer side sleeve 18.

[0025] The continuous production system of the above-mentioned double alkyl tertiary amine quaternary ammonium salt, when working, includes the following steps:

[0026] (1) The liquid phase raw material enters the premixing kettle 1, the premixing kettle agitator 4 and the premixing kettle coil 5 start to work, then the liquid phase raw material enters the reactor through the production pump 6, the gas phase enters the reactor 2 through the gas distribution tray 9, and the reactor agitator 7 and the reactor coil 8 start to work; (2) During the reaction process, the gas phase in the reactor 2 enters the condenser tank 10 through the gas phase pipeline 19 for condensation, the condensed liquid phase enters the condensate storage tank 12 through the outer side sleeve 18, and the gas phase enters the temporary storage tank 11; (3) After the reaction is completed, the product enters the filter 3 through the filter pipeline 14, when the efficiency of the filter 3 is reduced, the driving motor 17 is started, and the impurities adhered to the lower part of the filter plate 13 are removed through the rotating scraper 16.

Claims

1. A continuous production system of a bisalkyl tertiary amine quaternary ammonium salt, characterized by, Including premixing cauldron (1), reaction cauldron (2), premixing cauldron (1) is connected with reaction cauldron (2) through production pump (6), the inside of premixing cauldron (1) is equipped with premixing cauldron coil pipe (5), the inside of reaction cauldron (2) is equipped with reaction cauldron coil pipe (8), reaction cauldron (2) is connected with condensing tank (10) through gas phase guide pipe (19), the outside of gas phase guide pipe (19) is equipped with outside sleeve (18), and outside sleeve (18) is connected with condensate storage tank (12) on the outside sleeve (18). The inside of premixing cauldron coil pipe (5) is equipped with premixing cauldron stirrer (4), and the inside of reaction cauldron coil pipe (8) is equipped with reaction cauldron stirrer (7), and reaction cauldron coil pipe (8) is connected with premixing cauldron coil pipe (5) through pipeline.

2. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 1, characterized in that, The reaction cauldron (2) is connected with the filter (3) through the filter pipeline (14), and the filter (3) is provided with the filter plate (13) in the inside.

3. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 2, characterized in that, The filter outlet (15) is located above the filter plate (13) on the vertical wall of the filter (3).

4. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 3, characterized in that, The lower edge of the filter plate (13) is tangent to the upper edge of the rotary scraper (16) driven by the driving motor (17) below the filter plate (13).

5. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 1, characterized in that, The lower edge of the filter plate (13) is tangent to the upper edge of the rotary scraper (16) driven by the driving motor (17) below the filter plate (13).

6. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 5, characterized in that, The gas phase distribution disc (9) is connected with the gas phase feed pipeline (21) on the gas phase distribution disc (9), and the gas outlet hole (22) is arranged on the gas phase distribution disc (9).

7. The continuous production system of a bisalkyl tertiary amine quaternary ammonium salt according to claim 1, characterized in that, The outer side of the condensing tank (10) is provided with a cooling sleeve (20), and the condensing tank (10) is connected with a temporary storage tank (11), and the temporary storage tank (11) is connected with the gas phase feed pipeline (21) through the pipeline, and the one-way valve is arranged between the temporary storage tank (11) and the gas phase feed pipeline (21). The gas phase guide pipe (19) is connected with the reaction cauldron (2) and the condensing tank (10), the outer sleeve (18) is connected with the condensing tank (10) and the condensate storage tank (12), and the height of the gas phase guide pipe (19) is higher than that of the outer sleeve (18).

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