Long-chain chlorinated paraffin oil-acid separation system
The separation of chlorine gas through stripping tower and oleic acid separation system solves the problem of mixing hydrochloric acid and wax oil in the production of long-chain chlorinated paraffin, and reduces wax oil unit consumption and improves the quality of hydrochloric acid, improving the safety and efficiency of the production line.
Patent Information
- Application Number
- CN202422101025.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-29
AI Technical Summary
During the existing production process of long-chain chlorinated paraffin, hydrogen chloride gas in the reaction exhaust gas is mixed with wax oil, resulting in a decrease in the quality of hydrochloric acid and an increase in wax oil consumption, affecting production costs and safety.
Using stripping towers and oleic acid separation systems, including the first and second oleic acid extraction towers, chlorine is separated by stripping towers, and the temperature is controlled by a heat exchange system to achieve separation of oleic acid and purification of hydrochloric acid.
Effectively separate chlorine gas, reduce wax oil consumption, improve hydrochloric acid quality, and improve the safety and efficiency of the production line.
Smart Images
Figure CN223233338U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical industry, in particular to a long-chain chlorinated paraffin oleic acid separation system. Background Art
[0002] In the existing long-chain chlorinated paraffin production process, the exhaust gas, hydrogen chloride, is absorbed by the falling film, leaving wax oil in the hydrochloric acid. This affects both the quality of the hydrochloric acid and the unit consumption of wax oil, leading to increased costs. This utility model provides a safe and efficient acid-oil separation process and chemical equipment for its application. It aims to solve the problem of continuous separation of hydrochloric acid and wax oil in existing production technologies, improve the quality of the hydrochloric acid, and reduce wax oil consumption. Utility Model Content
[0003] The main purpose of the utility model is to provide a long-chain chlorinated paraffin oleic acid separation system, which separates the chlorine dissolved therein through a stripping tower to prevent the chlorine from muddying the oleic acid separation layer, and then the oleic acid enters the oleic acid separation tower system, thereby reducing the unit consumption of wax oil, improving the quality of by-product hydrochloric acid, and improving the safety performance and efficiency of the chlorinated paraffin production line.
[0004] In order to solve the above technical problems, the utility model discloses a long-chain chlorinated paraffin oleic acid separation system, comprising: a stripping tower, wherein a crude hydrochloric acid inlet is provided on one side of the stripping tower, the stripping tower is connected in series with an oleic acid separation system, the oleic acid separation system comprises a first oleic acid extraction tower connected in series with the stripping tower and a second oleic acid extraction tower connected in series with the first oleic acid extraction tower, a heat exchange system is provided between the first oleic acid extraction tower and the second oleic acid extraction tower, hot water inlets and hot water outlets are provided on both sides of the heat exchange system, oil outlets are provided on the tops of the first oleic acid extraction tower and the second oleic acid extraction tower, and a hydrochloric acid intermediate tank is provided at the bottom of the second oleic acid extraction tower.
[0005] According to one embodiment of the present invention, the crude hydrochloric acid entering the stripping tower needs to be subjected to a falling film treatment first.
[0006] According to one embodiment of the present invention, the heat exchange system controls the temperature of the first oleic acid extraction tower and the second oleic acid extraction tower through a temperature sensor.
[0007] According to one embodiment of the present invention, the chlorine in the crude hydrochloric acid is separated by a stripping tower.
[0008] Compared with the existing technology, this application can achieve the following technical effects:
[0009] 1) The stripping tower separates the dissolved chlorine to prevent the chlorine from muddying the oleic acid separation layer. The oleic acid then enters the oleic acid separation tower system, reducing the unit consumption of wax oil, improving the quality of by-product hydrochloric acid, and enhancing the safety and efficiency of the chlorinated paraffin production line.
[0010] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0012] Figure 1 Schematic diagram of a long-chain chlorinated paraffin oleic acid separation system according to an embodiment of the present application.
[0013] Figure ID
[0014] Stripping tower 10, crude hydrochloric acid inlet 11, oleic acid separation system 20, first oleic acid purification tower 30, second oleic acid purification tower 40, heat exchange system 50, hot water inlet 51, hot water outlet 52, oil outlet 60, hydrochloric acid intermediate tank 70. DETAILED DESCRIPTION
[0015] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0016] Please refer to Figure 1 , Figure 1 The figure is a schematic diagram of a long-chain chlorinated paraffin oleic acid separation system 20 according to an embodiment of the present application. As shown in the figure, the long-chain chlorinated paraffin oleic acid separation system 20 includes a stripping tower 10, with a crude hydrochloric acid inlet 11 on one side of the stripping tower 10. The stripping tower 10 is connected in series with the oleic acid separation system 20. The oleic acid separation system 20 includes a first oleic acid extraction tower 30 connected in series with the stripping tower 10 and a second oleic acid extraction tower 40 connected in series with the first oleic acid extraction tower 30. A heat exchange system 50 is provided between the first oleic acid extraction tower 30 and the second oleic acid extraction tower 40. A hot water inlet 51 and a hot water outlet 52 are provided on both sides of the heat exchange system 50. An oil outlet 60 is provided at the top of the first oleic acid extraction tower 30 and the second oleic acid extraction tower 40, and a hydrochloric acid intermediate tank 70 is provided at the bottom of the second oleic acid extraction tower 40.
[0017] In an embodiment of the present invention, a crude hydrochloric acid inlet 11 is provided on one side of the stripping tower 10 . The crude hydrochloric acid entering the stripping tower 10 needs to be subjected to a falling film treatment first, and then the chlorine in the crude hydrochloric acid is separated by the stripping tower 10 .
[0018] Furthermore, the crude hydrochloric acid after separation of chlorine enters the oleic acid separation system 20, which includes a first oleic acid extraction tower 30 connected in series with the stripping tower 10 and a second oleic acid extraction tower 40 connected in series with the first oleic acid extraction tower 30. A heat exchange system 50 is provided between the first oleic acid extraction tower 30 and the second oleic acid extraction tower 40. The heat exchange system 50 controls the temperature of the first oleic acid extraction tower 30 and the second oleic acid extraction tower 40 through a temperature sensor. A hot water inlet 51 and a hot water outlet 52 are provided on both sides of the heat exchange system 50. The density and state of the oil layer material are controlled by the heat exchange system 50. Finally, an oil outlet 60 is provided at the top of the first oleic acid extraction tower 30 and the second oleic acid extraction tower 40 for outputting wax oil, and then a hydrochloric acid intermediate tank 70 is provided at the bottom of the second oleic acid extraction tower 40 for placing the treated hydrochloric acid.
[0019] The above description shows and describes several preferred embodiments of the present application. However, as mentioned above, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the present application through the above teachings or the technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art without departing from the spirit and scope of the present application shall be protected by the claims appended hereto.
Claims
1. A long-chain chlorinated paraffin oleic acid separation system, characterized in that: include: A stripping tower, wherein one side of the stripping tower is provided with a crude hydrochloric acid inlet, the stripping tower is connected in series to an oleic acid separation system, the oleic acid separation system includes a first oleic acid extraction tower connected in series with the stripping tower and a second oleic acid extraction tower connected in series with the first oleic acid extraction tower, a heat exchange system is provided between the first oleic acid extraction tower and the second oleic acid extraction tower, hot water inlet and hot water outlet are provided on both sides of the heat exchange system, oil outlets are provided at the top of the first oleic acid extraction tower and the second oleic acid extraction tower, and a hydrochloric acid intermediate tank is provided at the bottom of the second oleic acid extraction tower.
2. The long-chain chlorinated paraffin oleic acid separation system according to claim 1, characterized in that: The crude hydrochloric acid entering the stripping tower needs to be treated with falling film first.
3. The long-chain chlorinated paraffin oleic acid separation system according to claim 1, characterized in that: The heat exchange system controls the temperatures of the first oleic acid extraction tower and the second oleic acid extraction tower through temperature sensors.
4. The long-chain chlorinated paraffin oleic acid separation system according to claim 1, characterized in that: Chlorine gas in the crude hydrochloric acid is separated by the stripping column.