Production device of high-purity amino alcohol

Abstract

The bottom of a raw material tank is connected with an inlet of a raw material heat exchanger through a raw material feeding pump, an outlet of the raw material heat exchanger is connected with an upper inlet of an extraction tower, an outlet of a solvent tank is connected with an inlet of a solvent heat exchanger through a solvent pump, and an outlet of the solvent heat exchanger is connected with the lower portion of the extraction tower. The top of the extraction tower is connected with a light phase recovery feeding pump through an extraction light phase tank, an outlet of the light phase recovery feeding pump is connected with an upper inlet of a solvent recovery tower, the top of the solvent recovery tower is connected with a solvent tank through a recovery tower top cooler, and one side of the solvent recovery tower is connected with an inlet and outlet of a recovery tower reboiler. A bottom outlet of the solvent recovery tower is connected with a raffinate tank through a raffinate extraction pump, a bottom outlet of the extraction tower is connected with an inlet of the high-purity rectifying tower through an extraction heavy phase tank, and a top outlet of the high-purity rectifying tower is respectively connected with inlets of the front component tank, the transition component tank and the product tank through a high-purity cooler. The device is reasonable in structure, simple to operate, low in production cost and safe and environment-friendly in production.

Description

Technical Field

[0001] The utility model relates to the field of extraction and distillation, and in particular to a production device for high-purity amino alcohol. Background Art

[0002] Amino alcohol is used in high-end coatings, metal processing, cosmetics, pharmaceuticals and pesticides, and is also used in organic synthesis. It is also a multifunctional additive suitable for a variety of latex paints to prevent pigment reaggregation and improve the overall performance of the paint. Its industrialization has good market prospects and economic benefits. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a production device for high-purity amino alcohols.

[0004] According to the technical solution provided in the embodiment of the present application, a production device of high-purity amino alcohol includes a raw material tank and a solvent tank, the bottom of the raw material tank is connected to the inlet of the raw material feed pump, the outlet of the raw material feed pump is connected to the inlet of the raw material heat exchanger, the outlet of the raw material heat exchanger is connected to the inlet of the upper part of the extraction tower, the outlet of the solvent tank is connected to the inlet of the solvent pump, the outlet of the solvent pump is connected to the inlet of the solvent heat exchanger, the outlet of the solvent heat exchanger is connected to the lower part of the extraction tower, the top of the extraction tower is connected to the inlet of the extraction light phase tank, the outlet of the extraction light phase tank is connected to the inlet of the light phase recovery feed pump, the outlet of the light phase recovery feed pump is connected to the upper inlet of the solvent recovery tower, and the solvent The top of the recovery tower is connected to the inlet of the recovery tower top cooler, the outlet of the recovery tower top cooler is connected to the inlet of the solvent tank, the lower outlet of the solvent recovery tower is connected to the inlet of the recovery tower reboiler, the outlet of the recovery tower reboiler is connected to the middle inlet of the solvent recovery tower, the bottom outlet of the solvent recovery tower is connected to the inlet of the residual liquid extraction pump, the outlet of the residual liquid extraction pump is connected to the inlet of the residual liquid tank, the bottom outlet of the extraction tower is connected to the inlet of the extraction heavy phase tank, the outlet of the extraction heavy phase tank is connected to the inlet of the high-purity distillation tower, the top outlet of the high-purity distillation tower is connected to the inlet of the high-purity cooler, and the outlet of the high-purity cooler is respectively connected to the inlets of the front component tank, the transition component tank and the product tank.

[0005] In the utility model, further, the product tank and the product distillation pipeline are equipped with a heating belt.

[0006] In summary, the beneficial effects of the present application are as follows: the feed temperature of the extraction tower in the device can be adjusted, the still residue of the recovered solvent can continue to be distilled into products, no waste liquid is generated, the recovered solvent directly enters the solvent tank, and the recovered solvent is reused, realizing the rational use of resources, and the extraction raw material pipeline, product tank and distillation pipeline are equipped with heating belts to avoid amino alcohol crystallization blocking the pipeline. The device has a reasonable structure, simple operation, safety and environmental protection, and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0008] Figure 1 Schematic diagram of the structure of the high-purity amino alcohol production system.

[0009] Numbers in the figure:

[0010] 1-raw material tank; 2-raw material feed pump; 3-raw material heat exchanger; 4-solvent tank; 5-solvent pump; 6-solvent heat exchanger; 7-extraction tower; 8-extraction heavy phase tank; 9-extraction light phase tank; 10-light phase recovery feed pump; 11-solvent recovery tower; 12-recovery tower reboiler; 13-recovery tower top cooler; 14-residual liquid extraction pump; 15-residual liquid tank; 16-high-purity distillation tower; 17-high-purity cooler; 18-front component tank; 19-transition component tank; 20-product tank. DETAILED DESCRIPTION

[0011] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0012] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0013] like Figure 1 As shown, the present application is a high-purity amino alcohol production device consisting of a raw material tank 1, a raw material feed pump 2, a raw material heat exchanger 3, a solvent tank 4, a solvent pump 5, a solvent heat exchanger 6, an extraction tower 7, an extraction heavy phase tank 8, an extraction light phase tank 9, a light phase recovery feed pump 10, a solvent recovery tower 11, a recovery tower reboiler 12, a recovery tower top cooler 13, a residual liquid extraction pump 14, a residual liquid tank 15, a high-purity distillation tower 16, a high-purity cooler 17, a front component tank 18, a transition component tank 19, a product tank 20, etc.;

[0014] like Figure 1As shown, the bottom of the raw material tank 1 is connected to the inlet of the raw material feed pump 2, the outlet of the raw material feed pump 2 is connected to the inlet of the raw material heat exchanger 3, the outlet of the raw material heat exchanger 3 is connected to the upper inlet of the extraction tower 7, the outlet of the solvent tank 4 is connected to the inlet of the solvent pump 5, the outlet of the solvent pump 5 is connected to the inlet of the solvent heat exchanger 6, the outlet of the solvent heat exchanger 6 is connected to the lower part of the extraction tower 7, the top of the extraction tower 7 is connected to the inlet of the extraction light phase tank 9, the outlet of the extraction light phase tank 9 is connected to the inlet of the light phase recovery feed pump 10, the outlet of the light phase recovery feed pump 10 is connected to the upper inlet of the solvent recovery tower 11, the top of the solvent recovery tower 11 is connected to the inlet of the recovery tower top cooler 13, and the recovery tower top The outlet of the cooler 13 is connected to the inlet of the solvent tank 4, the lower outlet of the solvent recovery tower 11 is connected to the inlet of the recovery tower reboiler 12, the outlet of the recovery tower reboiler 12 is connected to the middle inlet of the solvent recovery tower 11, the bottom outlet of the solvent recovery tower 11 is connected to the inlet of the residual liquid extraction pump 14, the outlet of the residual liquid extraction pump 14 is connected to the inlet of the residual liquid tank 15, the bottom outlet of the extraction tower 7 is connected to the inlet of the extraction heavy phase tank 8, the outlet of the extraction heavy phase tank 8 is connected to the inlet of the high-purity distillation tower 16, the top outlet of the high-purity distillation tower 16 is connected to the inlet of the high-purity cooler 17, and the outlet of the high-purity cooler 17 is respectively connected to the inlets of the front component tank 18, the transition component tank 19 and the product tank 20.

[0015] In summary, the raw material amino alcohol is stored in the raw material tank 1, and is fed into the raw material heat exchanger 3 through the raw material feed pump 2, and enters the extraction tower 7 from the top after being heat exchanged and adjusted to 35°C. The entire feed pipeline is heated to prevent the amino alcohol from crystallizing and blocking the pipeline. The extraction tower 7 can operate continuously, and both feed ports can achieve temperature control; the extraction solvent is stored in the solvent tank 4, and is fed into the solvent heat exchanger 6 through the solvent pump 5, and enters the extraction tower 7 from the bottom after being heat exchanged and adjusted to 35°C, and performs countercurrent extraction with the amino alcohol; the light component enters the extraction light phase tank 9 from the top of the tower, and enters the upper part of the solvent recovery tower 11 through the light phase recovery pump 10 for solvent recovery, and then enters the extraction tower 7 from the top of the tower. After heating through the recovery tower reboiler 12, the solvent is cooled from the top of the tower through the recovery tower top cooler 13 and then enters the solvent tank 4 for reuse; the kettle residue is extracted into the residual liquid tank 15 through the residual liquid extraction pump 14, and the residual liquid pipeline is heated, and the product in the residual liquid can be recovered, and no waste liquid is generated; the amino alcohol heavy phase enters the extraction heavy phase tank 8 from the bottom of the extraction tower 7 and then enters the high-purity distillation tower 16 for distillation, and the gas phase passes through the high-purity cooler 17, and the front component, transition component, and product enter the gas ammonia component tank 18, the transition component pipe 19, and the product tank 20 respectively. The pipelines of the high-purity distillation tower are heated, and the distillation is a negative pressure operation with a pressure of -75--80KPa. The solvent can be recycled and reused, and the residual liquid produced can produce products with lower requirements, so that the mechanism does not generate waste liquid.

[0016] The above description is only an explanation of the preferred embodiments of the present application and the technical principles and other schemes used. At the same time, the scope of the utility model involved in the present application is not limited to the technical scheme formed by a specific combination of the above technical features, but also includes other technical schemes formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) to form a technical scheme.

Claims

1. A production device for high-purity amino alcohol, comprising a raw material tank (1) and a solvent tank (4), characterized in that: The bottom of the raw material tank (1) is connected to the inlet of the raw material feed pump (2), the outlet of the raw material feed pump (2) is connected to the inlet of the raw material heat exchanger (3), the outlet of the raw material heat exchanger (3) is connected to the upper inlet of the extraction tower (7), the outlet of the solvent tank (4) is connected to the inlet of the solvent pump (5), the outlet of the solvent pump (5) is connected to the inlet of the solvent heat exchanger (6), the outlet of the solvent heat exchanger (6) is connected to the lower part of the extraction tower (7), the top of the extraction tower (7) is connected to the inlet of the extraction light phase tank (9), the outlet of the extraction light phase tank (9) is connected to the inlet of the light phase recovery feed pump (10), the outlet of the light phase recovery feed pump (10) is connected to the upper inlet of the solvent recovery tower (11), the top of the solvent recovery tower (11) is connected to the inlet of the recovery tower top cooler (13), and the recovery tower top cooler (14) is connected to the upper inlet of the solvent recovery tower (11). The outlet of the cooler (13) is connected to the inlet of the solvent tank (4), the lower outlet of the solvent recovery tower (11) is connected to the inlet of the recovery tower reboiler (12), the outlet of the recovery tower reboiler (12) is connected to the middle inlet of the solvent recovery tower (11), the bottom outlet of the solvent recovery tower (11) is connected to the inlet of the residual liquid extraction pump (14), the outlet of the residual liquid extraction pump (14) is connected to the inlet of the residual liquid tank (15), the bottom outlet of the extraction tower (7) is connected to the inlet of the extraction heavy phase tank (8), the outlet of the extraction heavy phase tank (8) is connected to the inlet of the high-purity distillation tower (16), the top outlet of the high-purity distillation tower (16) is connected to the inlet of the high-purity cooler (17), and the outlet of the high-purity cooler (17) is respectively connected to the inlets of the front component tank (18), the transition component tank (19) and the product tank (20).

2. The production device of a high-purity amino alcohol according to claim 1, characterized in that: The product tank (20) and the product distillation pipeline are equipped with a heating belt.

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