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Method and device for preparing ultrapure acetone

A kind of technology of acetone and materials, applied in the field of preparation of ultra-pure acetone, can solve the problems of cumbersome unit operation process, difficult process control, high energy consumption, etc., and achieve the effect of convenient operation process, stable product quality and low cost

Active Publication Date: 2011-02-16
SHANGHAI CHEM REAGENT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a preparation method and device for ultra-pure acetone, so as to overcome the disadvantages of complicated unit operation process, high energy consumption, low production capacity and difficult process control in the prior art

Method used

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  • Method and device for preparing ultrapure acetone
  • Method and device for preparing ultrapure acetone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Put 15L of industrial grade acetone in the raw material tank 1 at normal temperature, and control the flow rate to be 200ml / min into the cation exchange column 5 with a size of 80cm×8cm for cation exchange. After 1 hour, take a sample through the 1# sampling port 7 to detect the cation of the acetone material content, the test results are shown in Table 1 (if the cation content of the test result acetone material does not meet the standard, the material is returned to the cation exchange material storage tank 8 by the circulation pump 3, and then circulated to the cation exchange column 5 for ion exchange, and the test result The acetone material after the cation content meets the standard carries out anion exchange).

[0028] The acetone material for removing cations enters the anion exchange column 13 with a size of 80cm × 8cm by the anion exchange circulation pump 11, and after 1 hour, the anion content of the acetone material is sampled and detected through the 2# sa...

Embodiment 2

[0032] Put 30L of industrial grade acetone in the raw material tank 1 at normal temperature, and control the flow rate to be 400ml / min into the cation exchange column 5 with a size of 80cm×8cm for cation exchange. After 2 hours, take a sample through the 1# sampling port 7 to detect the cation of the acetone material content, the test results are shown in Table 1 (if the cation content of the test result acetone material does not meet the standard, the steps of Example 1 are used to process.

[0033] The acetone material for removing cations enters the anion exchange column 13 with a size of 80cm × 8cm by the anion exchange circulation pump 11, and after 1 hour, the anion content of the acetone material is sampled and detected through the 2# sampling port 16, and the test results are shown in Table 1 (if the test results The anion content of the acetone material does not meet the standard,

[0034] The acetone material from which cations and anions have been removed enters the...

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Abstract

The invention discloses a method and a device for preparing ultrapure acetone. A target product, namely, the ultrapure acetone is obtained by treating industrial acetone with ion exchange resin, removing impurity ions, dehydrating and performing membrane filtration. The purity of the ultrapure acetone is 99.8 percent or higher, the water content is less than 0.1 percent, the impurity ion content of the target product is lower than an index value by detection, the number of particle impurities which are larger than 1.0 mu m is less than 10 / ml and each index value is accordant with SEMI C1.2-96 standard. Compared with the prior art, the method of the invention has the advantages of low carbon, environmental protection and low cost; feed liquor is treated circularly, so that negative influence on the environment can be reduced; the used ion exchange resin and a molecular sieve can be recycled; and a cation exchange unit, an anion exchange unit, and a water content unit and a particle impurity unit, which are independent of and related to one another, are combined into an integrated device, so that the operation process is convenient, the product quality is stable and the device has industrialized production prospect.

Description

technical field [0001] The invention relates to a preparation method and device of ultra-pure acetone, in particular to a preparation method and device of ultra-pure acetone meeting the requirements of the SEMI C1.2-96 standard for chemical materials formulated by the International Semiconductor Equipment and Materials Organization. Background technique [0002] Acetone (Acetone) is an important chemical raw material. Acetone has relatively active chemical properties and can undergo reactions such as halogenation, addition, and condensation. It can be used as a cleaning agent for precision instruments or circuit boards in the microelectronics industry and semiconductor industry. Solvents for the production of liquid crystal materials, etc., used as solvents or raw materials for plastics, rubber, fiber, leather and other industries, for the synthesis of ketene, acetic anhydride, iodoform, polyisoprene rubber, methacrylic acid, methyl ester, Chloroform, epoxy resin and other s...

Claims

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Application Information

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IPC IPC(8): C07C45/79B01J47/02C07C49/08
Inventor 宋振蒋旭亮沈哲瑜陈士慧
Owner SHANGHAI CHEM REAGENT RES INST
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