CN-224207406-U - Bisphenol A type epoxy resin distillation purification device

CN224207406UCN 224207406 UCN224207406 UCN 224207406UCN-224207406-U

Abstract

The utility model discloses a distillation purification device of bisphenol A type epoxy resin, which comprises a thin film evaporator, a first storage tank, a pump body, a molecular distiller and a collecting container, wherein the first storage tank is arranged right below the thin film evaporator, the molecular distiller is arranged on one side of the thin film evaporator, the pump body is arranged between the first storage tank and the molecular distiller, the collecting container is arranged on one side, far away from the pump body, of the molecular distiller, a feeding pipe is fixedly connected to the surface of the thin film evaporator close to the top of the thin film evaporator, and a first discharging pipe is fixedly connected to the bottom of the thin film evaporator. According to the utility model, by combining the thin film evaporator with the molecular distiller, the thin film evaporator can primarily separate low-boiling impurities and heavy components, and the molecular distiller further purifies materials, so that the multi-stage purification of bisphenol A epoxy resin is realized, the purity of the product is effectively improved, and the requirement of the high-end field on the stability of the material performance is met.

Inventors

GAO JIANZHAO
HAN JIANWEI
WANG ZHENG
CHENG SIYUAN
CHENG ZHENSHUO

Assignees

上海华创之星新材料科技有限公司
安徽新远科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250604

Claims (5)

1. The bisphenol A type epoxy resin distillation purification device comprises a film evaporator (1), a first storage tank (2), a pump body (3), a molecular distiller (4) and a collecting container (5), and is characterized in that the first storage tank (2) is arranged right below the film evaporator (1), the molecular distiller (4) is arranged on one side of the film evaporator (1), the pump body (3) is arranged between the first storage tank (2) and the molecular distiller (4), the collecting container (5) is arranged on one side, far away from the pump body (3), of the molecular distiller (4), a feeding pipe (6) is fixedly connected to the surface of the film evaporator (1) close to the top of the molecular distiller, a blanking pipe (7) is fixedly connected to the bottom of the film evaporator (1), an output end of the blanking pipe (7) extends to the inside of the first storage tank (2), an extraction pipe (8) is fixedly connected to the input end of the pump body (3), an input end of the extraction pipe (8) extends to the inside the first storage tank (2), an output end of the extraction pipe (3) is fixedly connected to the inside the second feeding pipe (9) and a feeding pipe (9) is fixedly connected to the bottom of the film evaporator (1) and a feeding pipe (7) is fixedly connected to the bottom of the molecular distiller (4), the molecular distiller is characterized in that a first delivery pipe (11) is fixedly connected to the top of the molecular distiller (4), the output end of the first delivery pipe (11) extends to the inside of a collecting container (5), and a third blanking pipe (12) is fixedly connected to the position, close to the bottom, of the surface of the collecting container (5).
2. The device for purifying bisphenol A type epoxy resin by distillation according to claim 1, wherein a second storage tank (13) is arranged on one side of the thin film evaporator (1) far from the molecular still (4).
3. The device for distilling and purifying bisphenol A epoxy resin according to claim 2, wherein a second delivery pipe (14) is fixedly connected to the top of the thin film evaporator (1), and the output end of the second delivery pipe (14) extends into the second storage tank (13).
4. The device for purifying bisphenol A type epoxy resin by distillation according to claim 3, wherein a fourth blanking pipe (15) is fixedly connected to the surface of the second storage tank (13) at a position close to the bottom of the second storage tank.
5. The device for purifying bisphenol A type epoxy resin by distillation according to claim 4, wherein control valves are arranged in the middle parts of the first discharging pipe (7), the pumping pipe (8), the feeding pipe (9), the second discharging pipe (10), the first delivery pipe (11), the third discharging pipe (12), the second delivery pipe (14) and the fourth discharging pipe (15).

Description

Bisphenol A type epoxy resin distillation purification device Technical Field The utility model relates to the technical field of high polymer material purification, in particular to a distillation purification device for bisphenol A type epoxy resin. Background Bisphenol a type epoxy resins are the most widely used epoxy resin species, but commercial products thereof generally contain impurities such as low boiling point solvents, unreacted monomers, high boiling point polymers and the like, which affect the performance stability in high-end fields (such as electronic packaging and insulating materials). The traditional purification method (such as rotary evaporation and solvent crystallization) has the problems of low separation efficiency, high energy consumption, easiness in decomposition of heat-sensitive substances and the like. Molecular distillation technology is gradually the first choice for heat-sensitive material purification due to its high-efficiency separation characteristics at low temperature and high vacuum. However, the existing devices are designed for single component separation, and are difficult to meet the requirement of multistage purification of bisphenol A epoxy resin. The patent discloses a bisphenol A type epoxy resin impurity removal and separation system with the publication number of CN213895679U, which is characterized in that water and unreacted raw material epichlorohydrin in a mixture after reaction are removed through reduced pressure distillation of a rotary evaporator, unreacted sodium hydroxide and generated sodium chloride in the mixture are crystallized and separated out, unreacted sodium hydroxide and generated sodium chloride solid particles in the mixture are separated and removed through an efficient separation automatic discharging rotary vibrating screen, and materials on the upper layer and the lower layer of a screen are automatically discharged, so that efficient impurity removal and separation of bisphenol A type epoxy resin are realized. However, the bisphenol a type epoxy resin impurity removal and separation system mainly focuses on impurity removal and separation, is relatively limited in multistage purification, and may not meet the requirement of high-end fields on extremely high purity. Therefore, it is necessary to invent a distillation purification device for bisphenol A type epoxy resin to solve the above problems. Disclosure of utility model The utility model aims to provide a distillation purification device for bisphenol A epoxy resin, which solves the problems in the prior art. In order to achieve the above purpose, the technical scheme is that the bisphenol A type epoxy resin distillation purification device comprises a film evaporator, a first storage tank, a pump body, a molecular distiller and a collecting container, wherein the first storage tank is arranged right below the film evaporator, the molecular distiller is arranged on one side of the film evaporator, the pump body is arranged between the first storage tank and the molecular distiller, the collecting container is arranged on one side of the molecular distiller far away from the pump body, a feeding pipe is fixedly connected to the position, close to the top, of the surface of the film evaporator, a discharging pipe is fixedly connected to the bottom of the film evaporator, the output end of the first discharging pipe extends into the first storage tank, the input end of the pump body is fixedly connected with a pumping pipe, the input end of the pumping pipe extends into the first storage tank, the output end of the pump body is fixedly connected with a feeding pipe, the output end of the feeding pipe extends into the molecular distiller, the position, close to the bottom, of the surface of the molecular distiller is fixedly connected with a second discharging pipe, the top of the molecular distiller is fixedly connected with a first discharging pipe, the output end of the first discharging pipe extends into the collecting pipe, and the position, close to the bottom of the collecting pipe is fixedly connected to the position, and the position, close to the bottom of the collecting pipe is fixedly connected to the third discharging pipe. Through setting up film evaporator and molecular distillation ware for the epoxy raw materials can carry out high-efficient purification through two steps of film evaporation and molecular distillation, has improved purity and the quality of product. Preferably, a second storage tank is arranged on one side of the thin film evaporator, which is far away from the molecular distiller. The second storage tank can be used for storing low-boiling-point impurities volatilized after the preliminary treatment of thin film evaporation. Preferably, the top of the thin film evaporator is fixedly connected with a second delivery pipe, and the output end of the second delivery pipe extends to the inside of the second storage tank. Through setting up No. two