WO2021008165A1 - Ethyl acetate and water layering device and application thereof - Google Patents

Ethyl acetate and water layering device and application thereof Download PDF

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Publication number
WO2021008165A1
WO2021008165A1 PCT/CN2020/081264 CN2020081264W WO2021008165A1 WO 2021008165 A1 WO2021008165 A1 WO 2021008165A1 CN 2020081264 W CN2020081264 W CN 2020081264W WO 2021008165 A1 WO2021008165 A1 WO 2021008165A1
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Prior art keywords
ethyl acetate
phase outlet
housing
organic phase
baffle
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PCT/CN2020/081264
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French (fr)
Chinese (zh)
Inventor
张宇
徐开峰
鲁宜武
徐明仲
常亮
包磊磊
郭向东
张玉娟
张建立
石盼盼
陈明
彭新
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兖矿鲁南化工有限公司
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Publication of WO2021008165A1 publication Critical patent/WO2021008165A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases

Definitions

  • the invention relates to the technical field of ethyl acetate production equipment, in particular to an ethyl acetate, moisture layer device and applications thereof.
  • Ethyl acetate and water are immiscible, and the specific gravity is different.
  • the upper and lower layers are separated in the layerer, and the specific gravity of water is larger.
  • the organic weight of ethyl acetate is lighter.
  • the ethanol content is also Affect the stratification effect, the more ethanol content, the less ideal the stratification effect. When the ethanol content is greater than 9%, there is no more stratification.
  • the stratifier is located before the feed of the finished product tower. Its function is to remove the ethyl ester and water in the crude ester, increase the ethyl ester content of the finished product tower, reduce the water content and ethanol content of the finished product tower, and reduce the load of the finished product tower. , To reduce the amount of steam in the finished tower.
  • the inventor believes that the existing layerer structure still has the following shortcomings: as the load increases, the total feed of the layerer increases, the residence time decreases, and the ethyl acetate content in the organic phase of the layerer gradually decreases.
  • the mixed phase There is a layer of mixing zone between the water phase and the organic phase in the layerer (ie, the mixed phase, as shown in Figure 1), which affects the layering effect; in the organic phase, the ester content is about 88%, and the ethanol content is about 3%. After such organic phase enters the finished product tower, it needs to consume more steam in order to remove water and ethanol.
  • the present invention aims to provide an ethyl acetate, moisture layer and application thereof.
  • the invention adds fillers and baffles inside the layerer, divides the layerer into two sections, effectively improves the layering effect of the organic phase and the water phase, and increases the concentration of ethyl acetate in the organic phase and reduces the finished product The consumption of steam in the tower.
  • the first objective of the present invention is to provide an ethyl acetate and moisture layer device.
  • the second objective of the present invention is to provide an application of the ethyl acetate and moisture layer.
  • the present invention discloses an ethyl acetate and moisture layer, including: a shell, a feed inlet, a filler, a baffle, a front part, a rear part, an organic phase outlet, a first aqueous phase outlet, and a second aqueous phase Outlet; wherein, the feed port is provided at one end of the shell; the filler is provided in the shell and is located at one end of the feed port; the baffle is provided inside the shell, the edge of the baffle and the shell The inner walls are sealed and connected, but there is a gap between the upper end of the baffle plate and the inner wall of the casing, thereby dividing the casing into a communicating front part and a rear part, so that the organic phase can pass through the gap; the organic phase outlet is provided On the rear part, and the organic phase outlet is located on the upper surface of the shell to facilitate the extraction of the upper organic phase; the first aqueous phase outlet and the second aqueous phase outlet are respectively arranged on the front part and
  • the filler has a corrugated structure.
  • a first regulating valve is provided on the first water phase outlet to facilitate the timely discharge of the initially separated water and ensure the stability of the interface.
  • a second regulating valve is provided on the second water phase outlet; in order to promptly drain the water separated for the second time, and to ensure the stability of the interface.
  • the feed port is connected with the reflux tank of the rectification tower.
  • both the first water phase outlet and the second water phase outlet are connected to the recovery tower.
  • the organic phase outlet is connected to the finished product tower, so as to further improve the purity of ethyl acetate in the organic phase.
  • the present invention discloses the application of the ethyl acetate and moisture layer in the chemical industry.
  • the packing is designed for steady flow, that is, the turbulent material that enters the shell from the feed port is adjusted into a slow-flowing material to avoid being washed away after stratification.
  • the stratification effect is seriously damaged because one of the basis for the stratification between the organic phase, the water phase and the mixed phase between the two is the difference in specific gravity. After stratification, there is a difference between these phases.
  • Stable "balance" once a strong external force intervenes, this "balance” will be severely disrupted, causing the layered state to be destroyed, and the present invention can use the corrugated structure of the packing to remove the material by designing the packing at the material inlet.
  • the turbulent flow state is converted into a steady flow state, which well overcomes the above problems.
  • the second feature of the ethyl acetate and moisture layerer of the present invention is: After the optimized design, after the material enters the front part for preliminary layering, the organic phase can slowly pass the baffle from the gap between the baffle and the inner wall of the shell Into the rear part, at this time, the organic phase can be stratified again in the rear part. Because the closer to the top of the delaminator, the higher the ethyl acetate content in the organic phase. In this way, due to the effect of the baffle itself, it enters the rear part. The organic phase in the rear part is high in concentration. After stratification again, the concentration of ethyl acetate in the organic phase can be further increased. From the actual stratification effect, it can be seen that the stratification effect in the rear part is obviously improved. There is almost no mixed phase.
  • the present invention has achieved the following beneficial effects:
  • the layerer of the present invention can effectively increase the concentration of ethyl acetate in the organic phase. Therefore, the organic phase enters the finished product tower because the ethyl ester content increases, the ethanol content decreases, and the steam required for the finished product tower decreases.
  • the actual operation results show : After the optimized design, the amount of steam in the finished tower has been reduced by more than 100Kg/t.
  • the layerer of the present invention can increase the concentration of ethyl acetate in the organic phase by at least 5%, decrease the content of ethanol by at least 1%, and decrease the water content by more than 3%, thus achieving remarkable effects.
  • Figure 1 is a schematic diagram of the structure of the ethyl acetate and moisture layer device before the improvement of the present invention.
  • Fig. 2 is a schematic diagram of the structure of the ethyl acetate and moisture layer in embodiment 1 of the present invention (that is, after improvement).
  • Figure 3 is a schematic diagram of the distribution of the phases in the ethyl acetate and moisture layer in Example 1 of the present invention.
  • the present invention proposes an optimized ethyl acetate and moisture layerer after adding fillers and baffles inside the layerer; the present invention will now be further described with reference to the drawings and specific embodiments.
  • an ethyl acetate and moisture layerer comprising: a shell 1, a feed port 2, a filler 3, a baffle 4, a front part 5, a rear part 6, an organic phase outlet 7, a first The water phase outlet 8 and the second water phase outlet 9; wherein, the feed port 2 is provided at one end of the housing 1; the filler 3 is provided in the housing 1 and is located at one end of the feed port 2; The plate 4 is arranged inside the housing 1.
  • the edge of the baffle 4 and the inner wall of the housing 1 are connected in a sealed manner, but there is a gap 12 between the upper end of the baffle 1 and the inner wall of the housing 1, thereby dividing the housing 1 into communication
  • the front part 5 and the back part 6 of the housing 1 are convenient for the organic phase to pass through the gap;
  • the organic phase outlet 7 is provided on the rear part 6, and the organic phase outlet 7 is located on the upper surface of the housing 1 to facilitate the removal of the upper layer
  • the first water phase outlet 8 and the second water phase outlet 9 are respectively arranged on the front part 5 and the rear part 6, and are located on the lower surface of the housing 1 to facilitate the extraction of the lower water phase.
  • an ethyl acetate and moisture layer device the same as the embodiment 1, the difference is that the packing 3 has a corrugated structure.
  • the present invention can use the corrugated structure of the packing to convert the turbulent flow state of the material into a steady flow state, and prevent the turbulent material entering the shell 1 from dispersing the stratified phases and destroying Layering effect.
  • the difference lies in that: the first water phase outlet 8 is provided with a first regulating valve 10 to facilitate the timely discharge of the initially separated water and ensure the interface stable.
  • the second water phase outlet 9 is provided with a second regulating valve 11 to facilitate timely discharge of the water separated for the second time and to ensure the stability of the interface.
  • An ethyl acetate and moisture layerer same as Example 1, except that: the feed port 2 is connected to the reflux tank of the rectification tower.
  • the first water phase outlet 8 and the second water phase outlet 9 are both connected to the recovery tower.
  • the organic phase outlet 7 is connected to the finished product tower to further improve the purity of ethyl acetate in the organic phase.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

An ethyl acetate and water layering device and an application thereof in the chemical industry. The ethyl acetate and water layering device comprises: a housing (1), a feed port (2), a filler (3), a baffle (4), a front (5), a rear (6), an organic phase outlet (7), a first water phase outlet (8) and a second water phase outlet (9); wherein, the feed port (2) is arranged at one end of the housing (1); the filler (3) is arranged in the housing (1), and is located at one end of the feed port (2); the baffle (4) is arranged inside the housing (1), the edge of the baffle (4) is in a sealed connection with the inner wall of the housing (1), but a gap (12) is formed between the upper end of the baffle (1) and the inner wall of the housing and divides the housing (1) into the front (5) and the rear (6) in communication with each other; the organic phase outlet (7) is arranged at the rear (6) and is located on the upper surface of the housing (1); the first water phase outlet (8) and the second water phase outlet (9) are respectively arranged on the front (5) and the rear (6) and both are located on the lower surface of the housing (1). By adding the filler (3) and the baffle (4) inside the layering device, the layering device is divided into two sections, which improves the layering effect of the organic phase and the water phase, increases the concentration of ethyl acetate in the organic phase, and reduces the consumption of steam in a finished product tower.

Description

一种醋酸乙酯、水分层器及其应用Ethyl acetate and moisture layer device and its application 技术领域Technical field
本发明涉及醋酸乙酯生产装置技术领域，尤其涉及一种醋酸乙酯、水分层器及其应用。The invention relates to the technical field of ethyl acetate production equipment, in particular to an ethyl acetate, moisture layer device and applications thereof.
背景技术Background technique
本发明背景技术中公开的信息仅仅旨在增加对本发明的总体背景的理解，而不必然被视为承认或以任何形式暗示该信息构成已经成为本领域一般技术人员所公知的现有技术。The information disclosed in the background of the present invention is only intended to increase the understanding of the overall background of the present invention, and is not necessarily regarded as an acknowledgement or in any form suggesting that the information constitutes the prior art known to those of ordinary skill in the art.
醋酸乙酯和水不互溶，比重也不同，在分层器中进行上下分层，水的比重较大，在下层，醋酸乙酯所在的有机相比重较轻，在上层，其中乙醇的含量也影响着分层效果，乙醇含量越多，分层效果越不理想。当乙醇含量大于9％时，就不再分层了。分层器位于成品塔进料前，作用是将粗酯中的乙酯和水分离开来，提高成品塔进料的乙酯含量，降低成品塔进料的水含量和乙醇含量，降低成品塔负荷，减少成品塔的蒸汽用量。Ethyl acetate and water are immiscible, and the specific gravity is different. The upper and lower layers are separated in the layerer, and the specific gravity of water is larger. In the lower layer, the organic weight of ethyl acetate is lighter. In the upper layer, the ethanol content is also Affect the stratification effect, the more ethanol content, the less ideal the stratification effect. When the ethanol content is greater than 9%, there is no more stratification. The stratifier is located before the feed of the finished product tower. Its function is to remove the ethyl ester and water in the crude ester, increase the ethyl ester content of the finished product tower, reduce the water content and ethanol content of the finished product tower, and reduce the load of the finished product tower. , To reduce the amount of steam in the finished tower.
然而，本发明人认为：现有分层器结构仍然存在如下不足：随着负荷的增加，分层器总进料增加，停留时间减短，分层器有机相中醋酸乙酯含量逐渐偏低，分层器中水相和有机相中间有一层混合区域(即混合相，如图1所示)，影响着分层效果；有机相中，酯含量在88％左右，乙醇含量在3％左右，这样的有机相进入成品塔后，为了除去水和乙醇需要消耗更多的蒸汽。However, the inventor believes that the existing layerer structure still has the following shortcomings: as the load increases, the total feed of the layerer increases, the residence time decreases, and the ethyl acetate content in the organic phase of the layerer gradually decreases. , There is a layer of mixing zone between the water phase and the organic phase in the layerer (ie, the mixed phase, as shown in Figure 1), which affects the layering effect; in the organic phase, the ester content is about 88%, and the ethanol content is about 3%. After such organic phase enters the finished product tower, it needs to consume more steam in order to remove water and ethanol.
发明内容Summary of the invention
针对上述存在的问题，本发明旨在提供一种醋酸乙酯、水分层器及其应用。 本发明在分层器内部增加填料和挡板，将分层器分为两段，有效提高了有机相和水相的分层效果，并且提高了有机相中醋酸乙酯的浓度，降低了成品塔中蒸汽的消耗量。In view of the above-mentioned problems, the present invention aims to provide an ethyl acetate, moisture layer and application thereof. The invention adds fillers and baffles inside the layerer, divides the layerer into two sections, effectively improves the layering effect of the organic phase and the water phase, and increases the concentration of ethyl acetate in the organic phase and reduces the finished product The consumption of steam in the tower.
本发明第一目的：提供一种醋酸乙酯、水分层器。The first objective of the present invention is to provide an ethyl acetate and moisture layer device.
本发明第二目的：提供所述醋酸乙酯、水分层器的应用。The second objective of the present invention is to provide an application of the ethyl acetate and moisture layer.
为实现上述发明目的，本发明公开了下述技术方案：To achieve the above-mentioned purpose of the invention, the present invention discloses the following technical solutions:
首先，本发明公开一种醋酸乙酯、水分层器，包括：壳体、进料口、填料、挡板、前部、后部、有机相出口、第一水相出口和第二水相出口；其中，所述进料口设置在壳体的一端；所述填料设置在壳体内，且位于进料口一端；所述挡板设置在壳体的内部，挡板的边缘和壳体的内壁之间密封连接，但挡板的上端与壳体内壁之间具有空隙，从而将壳体分成了连通的前部和后部，以便于有机相从该空隙中通过；所述有机相出口设置在后部上，且有机相出口位于壳体的上表面上，以便于导出上层的有机相；所述第一水相出口和第二水相出口分别设置在前部和后部上，且均位于壳体的下表面上，以便于导出下层的水相。First of all, the present invention discloses an ethyl acetate and moisture layer, including: a shell, a feed inlet, a filler, a baffle, a front part, a rear part, an organic phase outlet, a first aqueous phase outlet, and a second aqueous phase Outlet; wherein, the feed port is provided at one end of the shell; the filler is provided in the shell and is located at one end of the feed port; the baffle is provided inside the shell, the edge of the baffle and the shell The inner walls are sealed and connected, but there is a gap between the upper end of the baffle plate and the inner wall of the casing, thereby dividing the casing into a communicating front part and a rear part, so that the organic phase can pass through the gap; the organic phase outlet is provided On the rear part, and the organic phase outlet is located on the upper surface of the shell to facilitate the extraction of the upper organic phase; the first aqueous phase outlet and the second aqueous phase outlet are respectively arranged on the front part and the back part, and both Located on the lower surface of the shell to facilitate the drainage of the lower water phase.
作为进一步的技术方案，所述填料为波纹形结构。As a further technical solution, the filler has a corrugated structure.
作为进一步的技术方案，所述第一水相出口上设置有第一调节阀，以便于将初次分离出的水及时排出，并保证界面稳定。As a further technical solution, a first regulating valve is provided on the first water phase outlet to facilitate the timely discharge of the initially separated water and ensure the stability of the interface.
作为进一步的技术方案，所述第二水相出口上设置有第二调节阀；以便于将第二次分离出的水及时排除，并保证界面稳定。As a further technical solution, a second regulating valve is provided on the second water phase outlet; in order to promptly drain the water separated for the second time, and to ensure the stability of the interface.
作为进一步的技术方案，所述进料口与精馏塔的回流罐连接。As a further technical solution, the feed port is connected with the reflux tank of the rectification tower.
作为进一步的技术方案，所述第一水相出口和第二水相出口均与回收塔连接。As a further technical solution, both the first water phase outlet and the second water phase outlet are connected to the recovery tower.
作为进一步的技术方案，所述有机相出口与成品塔连接，以便于进一步提高有机相中醋酸乙酯的纯度。As a further technical solution, the organic phase outlet is connected to the finished product tower, so as to further improve the purity of ethyl acetate in the organic phase.
最后，本发明公开所述醋酸乙酯、水分层器在化工领域中的应用。Finally, the present invention discloses the application of the ethyl acetate and moisture layer in the chemical industry.
本发明醋酸乙酯、水分层器的特点之一是：设计了填料进行稳流，即将从进料口进入壳体中的湍急的物料调节成缓慢流动的物料，避免冲散已经分层后的各相，严重破坏分层效果，因为有机相、水相以及处于两者之间的混合相之间分层的依据之一是比重不同，分层后这些相之间维持着一种并不稳定的“平衡”，一旦有外力强势介入，会严重破坏这种“平衡”，造成分层的状态被破坏，而本发明通过设计在物料进口处的填料，可以利用填料的波纹形结构将物料的湍流状态转换成稳流状态，很好地克服了上述问题。One of the characteristics of the ethyl acetate and moisture layerer of the present invention is that the packing is designed for steady flow, that is, the turbulent material that enters the shell from the feed port is adjusted into a slow-flowing material to avoid being washed away after stratification. The stratification effect is seriously damaged because one of the basis for the stratification between the organic phase, the water phase and the mixed phase between the two is the difference in specific gravity. After stratification, there is a difference between these phases. Stable "balance", once a strong external force intervenes, this "balance" will be severely disrupted, causing the layered state to be destroyed, and the present invention can use the corrugated structure of the packing to remove the material by designing the packing at the material inlet. The turbulent flow state is converted into a steady flow state, which well overcomes the above problems.
本发明醋酸乙酯、水分层器的特点之二是：优化设计后，物料进入前部中进行初步分层后，有机相可以从挡板与壳体内壁之间的空隙中缓慢越过挡板进入后部中，此时，有机相在后部中能够再次得到分层，由于分层器内越接近顶部，有机相中的醋酸乙酯含量越高，这样，由于挡板的作用本身进入后部的有机相就是高浓度的，再经过再次分层后，能够进一步提高有机相中醋酸乙酯的浓度，从实际的分层效果来看，可以看出后部中的分层效果明显好转，几乎没有混合相。The second feature of the ethyl acetate and moisture layerer of the present invention is: After the optimized design, after the material enters the front part for preliminary layering, the organic phase can slowly pass the baffle from the gap between the baffle and the inner wall of the shell Into the rear part, at this time, the organic phase can be stratified again in the rear part. Because the closer to the top of the delaminator, the higher the ethyl acetate content in the organic phase. In this way, due to the effect of the baffle itself, it enters the rear part. The organic phase in the rear part is high in concentration. After stratification again, the concentration of ethyl acetate in the organic phase can be further increased. From the actual stratification effect, it can be seen that the stratification effect in the rear part is obviously improved. There is almost no mixed phase.
与现有技术相比，本发明取得了以下有益效果：Compared with the prior art, the present invention has achieved the following beneficial effects:
(1)本发明的分层器能够有效提升有机相中醋酸乙酯的浓度，因此，有机相进入成品塔，因为乙酯含量增加、乙醇含量减少，成品塔所需蒸汽减少，实际运行结果显示：优化设计后成品塔中蒸汽用量降低了100Kg/t以上。(1) The layerer of the present invention can effectively increase the concentration of ethyl acetate in the organic phase. Therefore, the organic phase enters the finished product tower because the ethyl ester content increases, the ethanol content decreases, and the steam required for the finished product tower decreases. The actual operation results show : After the optimized design, the amount of steam in the finished tower has been reduced by more than 100Kg/t.
(2)本发明的分层器能够将有机相中醋酸乙酯浓度提高至少5％、乙醇含 量至少降低1％，水含量降低3％以上，获得了显著的效果。(2) The layerer of the present invention can increase the concentration of ethyl acetate in the organic phase by at least 5%, decrease the content of ethanol by at least 1%, and decrease the water content by more than 3%, thus achieving remarkable effects.
附图说明Description of the drawings
构成本发明的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.
图1为本发明改进前醋酸乙酯、水分层器的结构示意图。Figure 1 is a schematic diagram of the structure of the ethyl acetate and moisture layer device before the improvement of the present invention.
图2为本发明实施例1中(即改进后)醋酸乙酯、水分层器的结构示意图。Fig. 2 is a schematic diagram of the structure of the ethyl acetate and moisture layer in embodiment 1 of the present invention (that is, after improvement).
图3为本发明实施例1中醋酸乙酯、水分层器中各相的分布示意图。Figure 3 is a schematic diagram of the distribution of the phases in the ethyl acetate and moisture layer in Example 1 of the present invention.
上述附图中标记分别代表：1-壳体、2-进料口、3-填料、4-挡板、5-前部、6-后部、7-有机相出口、8-第一水相出口、9-第二水相出口、10-第一调节阀、11-第二调节阀、12-空隙。The symbols in the above drawings respectively represent: 1-shell, 2-feed port, 3-filler, 4-baffle, 5-front, 6-rear, 7-organic phase outlet, 8-first aqueous phase Outlet, 9-second water phase outlet, 10-first regulating valve, 11-second regulating valve, 12-gap.
具体实施方式Detailed ways
应该指出，以下详细说明都是例示性的，旨在对本发明提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本发明所属技术领域的普通技术人员通常理解的相同含义。It should be pointed out that the following detailed descriptions are all illustrative and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本发明的示例性实施方式。如，在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. For example, as used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they Indicates the existence of features, steps, operations, devices, components, and/or combinations thereof.
正如前文所述，现有分层器随着负荷的增加，分层器总进料增加，停留时间减短，分层器有机相中醋酸乙酯含量逐渐偏低，分层器中水相和有机相中间有一层混合区域，影响着分层效果。因此，本发明在分层器内部增加填料和挡 板后提出了一种优化的醋酸乙酯、水分层器；现结合附图和具体实施方式对本发明进一步进行说明。As mentioned above, with the increase of load, the total feed of the existing layerer increases, the residence time decreases, and the content of ethyl acetate in the organic phase of the layerer gradually becomes lower. There is a layer of mixed zone in the middle of the organic phase, which affects the layering effect. Therefore, the present invention proposes an optimized ethyl acetate and moisture layerer after adding fillers and baffles inside the layerer; the present invention will now be further described with reference to the drawings and specific embodiments.
实施例1Example 1
参考图2和3，一种醋酸乙酯、水分层器，包括：壳体1、进料口2、填料3、挡板4、前部5、后部6、有机相出口7、第一水相出口8和第二水相出口9；其中，所述进料口2设置在壳体1的一端；所述填料3设置在壳体1内，且位于进料口2一端；所述挡板4设置在壳体1的内部，挡板4的边缘和壳体1的内壁之间密封连接，但挡板1的上端与壳体内壁之间具有空隙12，从而将壳体1分成了连通的前部5和后部6，以便于有机相从该空隙中通过；所述有机相出口7设置在后部6上，且有机相出口7位于壳体1的上表面上，以便于导出上层的有机相；所述第一水相出口8和第二水相出口9分别设置在前部5和后部6上，且均位于壳体1的下表面上，以便于导出下层的水相。Referring to Figures 2 and 3, an ethyl acetate and moisture layerer, comprising: a shell 1, a feed port 2, a filler 3, a baffle 4, a front part 5, a rear part 6, an organic phase outlet 7, a first The water phase outlet 8 and the second water phase outlet 9; wherein, the feed port 2 is provided at one end of the housing 1; the filler 3 is provided in the housing 1 and is located at one end of the feed port 2; The plate 4 is arranged inside the housing 1. The edge of the baffle 4 and the inner wall of the housing 1 are connected in a sealed manner, but there is a gap 12 between the upper end of the baffle 1 and the inner wall of the housing 1, thereby dividing the housing 1 into communication The front part 5 and the back part 6 of the housing 1 are convenient for the organic phase to pass through the gap; the organic phase outlet 7 is provided on the rear part 6, and the organic phase outlet 7 is located on the upper surface of the housing 1 to facilitate the removal of the upper layer The first water phase outlet 8 and the second water phase outlet 9 are respectively arranged on the front part 5 and the rear part 6, and are located on the lower surface of the housing 1 to facilitate the extraction of the lower water phase.
实施例2Example 2
一种醋酸乙酯、水分层器，同实施例1，区别在于：所述填料3为波纹形结构。本发明通过设计在物料进口处的填料，可以利用填料的波纹形结构将物料的湍流状态转换成稳流状态，避免进入壳体1中的湍急的物料冲散已经分层后的各相，破坏分层效果。An ethyl acetate and moisture layer device, the same as the embodiment 1, the difference is that the packing 3 has a corrugated structure. By designing the packing at the material inlet, the present invention can use the corrugated structure of the packing to convert the turbulent flow state of the material into a steady flow state, and prevent the turbulent material entering the shell 1 from dispersing the stratified phases and destroying Layering effect.
实施例3Example 3
一种醋酸乙酯、水分层器，同实施例1，区别在于：所述第一水相出口8上设置有第一调节阀10，以便于将初次分离出的水及时排出，并保证界面稳定。所述第二水相出口9上设置有第二调节阀11；以便于将第二次分离出的水及时排出，并保证界面稳定。An ethyl acetate and moisture layerer, the same as the embodiment 1, the difference lies in that: the first water phase outlet 8 is provided with a first regulating valve 10 to facilitate the timely discharge of the initially separated water and ensure the interface stable. The second water phase outlet 9 is provided with a second regulating valve 11 to facilitate timely discharge of the water separated for the second time and to ensure the stability of the interface.
实施例4Example 4
一种醋酸乙酯、水分层器，同实施例1，区别在于：所述进料口2与精馏塔的回流罐连接。所述第一水相出口8和第二水相出口9均与回收塔连接。所述有机相出口7与成品塔连接，以便于进一步提高有机相中醋酸乙酯的纯度。An ethyl acetate and moisture layerer, same as Example 1, except that: the feed port 2 is connected to the reflux tank of the rectification tower. The first water phase outlet 8 and the second water phase outlet 9 are both connected to the recovery tower. The organic phase outlet 7 is connected to the finished product tower to further improve the purity of ethyl acetate in the organic phase.
以上所述仅为本发明的优选实施例，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The foregoing descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc., made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

  1. 一种醋酸乙酯、水分层器，其特征在于，包括：壳体、进料口、填料、挡板、前部、后部、有机相出口、第一水相出口和第二水相出口；其中，所述进料口设置在壳体的一端；所述填料设置在壳体内，且位于进料口一端；所述挡板设置在壳体的内部，挡板的边缘和壳体的内壁之间密封连接，但挡板的上端与壳体内壁之间具有空隙，从而将壳体分成了连通的前部和后部；所述有机相出口设置在后部上，且有机相出口位于壳体的上表面上；所述第一水相出口和第二水相出口分别设置在前部和后部上，且均位于壳体的下表面上。An ethyl acetate and moisture layerer, characterized by comprising: a shell, a feed port, a filler, a baffle, a front part, a rear part, an organic phase outlet, a first aqueous phase outlet, and a second aqueous phase outlet Wherein, the feed port is provided at one end of the housing; the filler is provided in the housing and located at one end of the feed port; the baffle is provided inside the housing, the edge of the baffle and the inner wall of the housing There is a gap between the upper end of the baffle and the inner wall of the shell, so that the shell is divided into a communicating front part and a rear part; the organic phase outlet is arranged on the rear part, and the organic phase outlet is located in the shell On the upper surface of the body; the first water phase outlet and the second water phase outlet are respectively arranged on the front and rear, and are both located on the lower surface of the housing.
  2. 如权利要求1所述的醋酸乙酯、水分层器，其特征在于，所述填料为波纹形结构。The ethyl acetate and moisture layer device of claim 1, wherein the filler has a corrugated structure.
  3. 如权利要求1所述的醋酸乙酯、水分层器，其特征在于，所述第一水相出口上设置有第一调节阀。The ethyl acetate and moisture layerer according to claim 1, wherein the first water phase outlet is provided with a first regulating valve.
  4. 如权利要求1所述的醋酸乙酯、水分层器，其特征在于，所述第二水相出口上设置有第二调节阀。The ethyl acetate and moisture layerer of claim 1, wherein a second regulating valve is provided on the second water phase outlet.
  5. 如权利要求1-4任一项所述的醋酸乙酯、水分层器，其特征在于，所述进料口与精馏塔的回流罐连接。The ethyl acetate and moisture layerer according to any one of claims 1 to 4, wherein the feed port is connected to the reflux tank of the rectification tower.
  6. 如权利要求1-4任一项所述的醋酸乙酯、水分层器，其特征在于，所述第一水相出口和第二水相出口均与回收塔连接。The ethyl acetate and moisture layer device according to any one of claims 1 to 4, wherein the first water phase outlet and the second water phase outlet are both connected to a recovery tower.
  7. 如权利要求1-4任一项所述的醋酸乙酯、水分层器，其特征在于，所述有机相出口与成品塔连接。The ethyl acetate and moisture layerer according to any one of claims 1 to 4, wherein the organic phase outlet is connected to the finished product tower.
  8. 如权利要求1-7任一项所述的醋酸乙酯、水分层器在化工领域中的应用。The application of the ethyl acetate and moisture layerer according to any one of claims 1-7 in the chemical industry.
PCT/CN2020/081264 2019-07-16 2020-03-26 Ethyl acetate and water layering device and application thereof WO2021008165A1 (en)

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