Five-tube automatic protection small molecule purification equipment

Abstract

The invention discloses five-tube automatic protection small molecule purification equipment which comprises a supporting platform, a cabinet body and a direct insertion type cold trap, wherein the cabinet body is fixedly installed at the top of the supporting platform, and five sets of heating furnaces are installed at the top of the cabinet body at equal intervals in rows. The equipment aims tosolve the problems of inconsistent sublimation material purity caused by inconsistent vacuum degrees during batch production of sublimation instrument devices at the present stage; the equipment is high in one-time yield, and can reduce the mounting procedure and the vacuumizing time under the condition that five groups of furnace tubes share molecular pumps and mechanical pumps; due to the designof the two sets of molecular pumps and the mechanical pumps, it can be guaranteed that when one set of molecular pumps breaks down, the other set of molecular pumps can still guarantee vacuumizing, and the equipment is double-insurance equipment. According to the scheme, the five groups of furnace tubes are additionally arranged on original equipment, and through rotary baffles and the transversedirect-insertion cold trap device, high-quality and high-purity organic small molecular materials can be purified without worrying about that the equipment is polluted by the materials and impurities.

Description

technical field [0001] The invention relates to the technical field of small molecule purification equipment, in particular to a five-tube automatic protection small molecule purification equipment. Background technique [0002] OLED display technology has the advantages of self-luminescence, wide viewing angle, high contrast, low power consumption, high response rate, full-color and simple manufacturing process, etc., and has a good application prospect in the field of high-end display. However, the collection speed of many purification methods is relatively low at present, and it is difficult to reduce the cost, which seriously restricts its industrial application. Therefore, accelerating the rate of purification of organic small molecule materials is a hot spot in the field of OLED material research. [0003] In order to meet the urgent demand for material purification in the field of OLED materials, vacuum sublimation equipment is mostly used for the existing organic sm...

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Problems solved by technology

[0005] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a five-tube automatic protection small molecule purification equipment, which solves the problem that the purification rate of the same batch of materials cannot be consistent due to the inconsistency of vacuum degree in the existing same batch of material purification, and needs to be sublimated and purified at one time. Afterwards, carry out secondary sublimation purification on the materials in the first tube and not completely sublimated;

[0006] Solve the problem that the existing vacuum sublimation equipment for purifying organic materials by high-temperature sublimation method has different desublimation points and different temperature settings in the eight-stage temperature zone during high-temperature sublimation. Desublimation deposition, some materials and impurities move to the flange position at the right end, which may cause pollution and damage to the cold well and molecular pump, affect the use of equipment and may damage the equipment

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