A new type of protected propane sultone purification process device

Abstract

The utility model discloses a novel device for protecting propane sultone purification process, comprising a distillation tank, wherein both sides of the distillation tank are respectively provided with a feed pipe and a discharge pipe, wherein the discharge pipe is connected to a condenser, wherein the output end of the condenser is connected to a liquid collecting tank through a first pipeline, and is connected to a gas cooling tank through a second pipeline, wherein the gas cooling tank is connected to a solvent absorption tank, wherein the solvent absorption tank is connected to an alkaline absorption device, wherein one end of the alkaline absorption device is connected to a vacuum pump. The utility model has a simple structure, ensures that there is no corrosive gas at the air inlet of the vacuum pump, and the equipment operates stably.

Description

Technical Field

[0001] The utility model relates to the technical field of propane sultone preparation, in particular to a novel device for protecting a propane sultone purification process. Background Art

[0002] Propane sultone (hereinafter referred to as PS) is an organic compound with the chemical formula C3H6O3S. It is slightly soluble in water and is mainly used as a surfactant. It is also used in the preparation of cosmetics and as a pharmaceutical intermediate in the pharmaceutical industry. It is also used in leather making, inks and sensitizing dyes to synthesize sulfonating agents. It is widely used in pharmaceutical chemicals, photosensitive materials, lithium batteries, biochemistry, textiles, lubrication, wastewater treatment, surface treatment and other industries.

[0003] During the distillation process of PS, a small amount of PS and its acidic gas will be used in the shell and tube condenser, which will cause corrosion to the vacuum pump and thus cause damage to the equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel device for protecting the propane sultone purification process, which has a simple structure, ensures that there is no corrosive gas at the air inlet of the vacuum pump, and the equipment runs stably.

[0005] In order to solve the above technical problems, the utility model provides a novel protected propane sultone purification process device, comprising a distillation tank, wherein a feed pipe and a discharge pipe are respectively arranged on both sides of the distillation tank, the discharge pipe is connected to a condenser, the output end of the condenser is connected to a liquid collection tank through a first pipeline, and is connected to a gas cooling tank through a second pipeline, the gas cooling tank is connected to a solvent absorption tank, the solvent absorption tank is connected to an alkaline absorption device, and one end of the alkaline absorption device is connected to a vacuum pump.

[0006] Furthermore, a branch pipeline extends from the first pipeline and is connected to the distillation tank.

[0007] Furthermore, the condensation temperature of the condenser is -5° to 15°.

[0008] Furthermore, the solvent used in the solvent absorption tank is ethylene glycol or cyclohexanol.

[0009] Furthermore, the alkaline absorption device uses solid mixed alkali for absorption.

[0010] The beneficial effects of the utility model are as follows: the material of the device enters the distillation tank from the feed pipe for distillation operation, and after volatilization into gas, enters the condenser for condensation, the gas enters the gas cooling tank for cooling, the liquid enters the liquid collecting tank for recycling, the cooled liquid enters the solvent absorption tank and the alkaline absorption device for impurity adsorption, and the non-corrosive purified gas enters the vacuum pump, thereby extending the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Explanation of the numbers in the figure: 1. feed pipe; 2. distillation tank; 3. condenser; 4. liquid collecting tank; 5. gas cooling tank; 6. solvent absorption tank; 7. alkaline absorption device; 8. discharge pipe; 9. first pipeline; 10. second pipeline; 11. branch pipeline. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0014] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0015] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0016] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0019] Reference Figure 1 As shown, an embodiment of a novel device for protecting propane sultone purification process of the utility model comprises a distillation tank 2, wherein a feed pipe 1 and a discharge pipe 8 are respectively arranged on both sides of the distillation tank 2, wherein the discharge pipe 8 is connected to a condenser 3, wherein the output end of the condenser 3 is connected to a liquid collecting tank 4 through a first pipeline 9, and is connected to a gas cooling tank 5 through a second pipeline 10, wherein the gas cooling tank 5 is connected to a solvent absorption tank 6, wherein the solvent absorption tank 6 is connected to an alkaline absorption device 7, wherein one end of the alkaline absorption device 7 is connected to a vacuum pump.

[0020] The material enters the distillation tank 2 from the feed pipe 1 for distillation operation, and after volatilization into gas, it enters the condenser 3 for condensation. The gas enters the gas cooling tank 5 for cooling, and the liquid enters the liquid collecting tank 4 for recycling. The cooled gas enters the solvent absorption tank 6 and the alkaline absorption device 7 for impurity adsorption. The gas that enters the vacuum pump is non-corrosive purified gas, which extends the service life.

[0021] A branch pipe 11 extends from the first pipe 9 and is connected to the distillation tank 2 for recycling; the condensation temperature of the condenser 3 is -5° to 15°; the solvent used in the solvent absorption tank 6 is ethylene glycol or cyclohexanol, and the adsorption effect is good by using a high boiling point solvent; the alkaline absorption device 7 uses a solid mixed alkali for absorption, and the absorption effect is also good.

[0022] The distillation tank 2, the liquid collecting tank 4, the gas cooling tank 5 and the solvent absorption tank 6 are all provided with stirring components, which can reduce the reaction time during the reaction and make the reaction more complete.

[0023] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A novel device for protecting propane sultone purification process, characterized in that: The invention comprises a distillation tank (2), wherein a feed pipe (1) and a discharge pipe (8) are respectively arranged on both sides of the distillation tank (2), wherein the discharge pipe (8) is connected to a condenser (3), wherein the output end of the condenser (3) is connected to a liquid collecting tank (4) via a first pipeline (9), and is connected to a gas cooling tank (5) via a second pipeline (10), wherein the gas cooling tank (5) is connected to a solvent absorption tank (6), wherein the solvent absorption tank (6) is connected to an alkaline absorption device (7), and wherein one end of the alkaline absorption device (7) is connected to a vacuum pump.

2. The novel protected propane sultone purification process device according to claim 1, characterized in that: A branch pipe (11) extends from the first pipe (9) and is connected to the distillation tank (2).

3. The novel protected propane sultone purification process device according to claim 1, characterized in that: The condensation temperature of the condenser (3) is between -5° and 15°.

4. The novel protected propane sultone purification process device according to claim 1, characterized in that: The solvent used in the solvent absorption tank (6) is ethylene glycol or cyclohexanol.

5. The novel protected propane sultone purification process device according to claim 1, characterized in that: The alkaline absorption device (7) uses solid mixed alkali for absorption.

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