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Organic solvent purification device and method

A technology for organic solvents and low-boiling point solvents, applied in the field of organic solvent purification devices, can solve the problems of environmental protection and high energy consumption, and achieve the effects of improving recovery rate and purity, energy saving and environmental protection, and simple and effective methods

Pending Publication Date: 2019-04-02
上海亿鼎电子系统集成有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem solved by the present invention is to provide an organic solvent purification device and method for separating the low boiling point components and high boiling point components in the original waste liquid, removing the impure substances and part of the water in the original waste liquid, and solving the problem of Problems such as high energy consumption and non-environmental protection in the prior art

Method used

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  • Organic solvent purification device and method

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Embodiment 1

[0030] Such as figure 1 As shown, this embodiment discloses a purification device for organic solvents, including a low boiling point solvent separator 21 under vacuum conditions, a first cooler 22, a first relay tank 23, a high boiling point and residue separator 24 , the second cooler 25, the second relay tank 26;

[0031] The upper section and the lower section of the low boiling point solvent separator 21 are respectively communicated with the first cooler 22 and the high boiler and residue separator 24;

[0032] The lower section of the first cooler 22 communicates with the first relay tank 23;

[0033] The upper section of the high boiling point and residue separator 24 communicates with the second cooler 25 , and the lower section of the second cooler 25 communicates with the second relay tank 26 .

[0034] The discharge port at the lower end of the second relay tank 26 communicates with the finished product tank 12 .

[0035] The purification device also includes a ...

Embodiment 2

[0045] This embodiment discloses a method for separating an organic solvent using the organic solvent purification device described in Embodiment 1, comprising the following steps:

[0046] S1: remove the substances with lower boiling point in the organic solution through the low boiling point solvent separator and the first cooler to obtain the intermediate liquid;

[0047] S2: Remove substances with higher boiling points and metal ions in the intermediate liquid through the high boiling point and residue separator and the second cooler.

[0048]S0 is also included before S1: the raw waste liquid to be separated first enters the filter to obtain the filtered liquid, and the filtered liquid enters the preheater for preheating treatment.

[0049] S1 specifically includes the following steps: the low boiling point substance is heated and evaporated, enters the first cooler through the pipe in the form of steam, the ice water cooled by the first cooler becomes liquid, and the con...

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Abstract

The invention relates to the technical field of environmental protection, and in particular relates to an organic solvent purification device and method. The organic solvent purification device comprises a low-boiling-point solvent separator under a vacuum condition, a first cooler, a first relay tank, a high-boiling-point substance and residue separator, a second cooler, and a second relay tank;the upper and lower sections of the low-boiling-point solvent separator communicate with the first cooler and the high-boiling-point substance and residue separator, respectively; the lower section ofthe first cooler communicates with the first relay tank; the upper section of the high-boiling-point substance and residue separator communicates with the second cooler; and the lower section of thesecond cooler communicates with the second relay tank. The organic solvent purification device and method disclosed by the invention can separate different kinds of organic solvents from an original waste liquid, and the method is simple, effective, energy-saving and friendly to environment.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an organic solvent purification device and method. Background technique [0002] In recent years, with the rapid development of the semiconductor industry and new energy sources, the amount of raw materials used in production has also increased significantly, especially organic solvents such as IPA (isopropanol) and Thinner-1 (propylene glycol methyl ether ethyl alcohol) used in semiconductors. ester + isopropanol methyl ether), NMP (N-methylpyrrolidone), EKC270T (developer), Thinner-2 (propylene glycol methyl ether acetate + isopropanol methyl ether), Develop-2 (cyclopentanone ) and NMP, an organic solvent used in lithium-ion batteries, are not only used in large quantities but also require high quality. Because IPA, Thinner-1, NMP, EKC270T, Thinner-2 and Develop-2 are organic solvents containing N, especially NMP, which have a great impact on the eutrophicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D5/00
CPCB01D5/006B01D5/0069B01D5/0072
Inventor 丁红伟李芸
Owner 上海亿鼎电子系统集成有限公司
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