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Separation Purification Characteristics of Rinsing Solution in Semiconductor Process usingHigh Performance Polymer Membranes (Ⅰ)

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2005, 17(3), pp.34-42
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

Lee,Jae-Dal 1 Kieseo Bae 2 홍영기 3 노덕길 4

1혜전대학
2충남대학교
3건양대학교
4청운대학교

Accredited

ABSTRACT

this work, a practical separation performance was investigated on aqueous alcohol solutions, especially for iso-propyl alcohol (IPA), which is usually used during the semi- conductor rinsing process. The removal of various substances from waste aqueous IPA solutions was carried out by microfiltration with 0.1~1㎛ pore size of mean diameter as a pre-filter.Permeability and molecular weight cut-off of the functional polysulfone(PSf) ultrafiltration membrane to purify waste aqueous IPA solutions were measured through the ultrafiltration test. The solute rejection of PSf membrane had 92% in 1,000ppm aqueous PEG solution with PEG molecular weight 10,000, the molecular weight cut-off had 10,000.The IPA concentration on the CMPA-K+ membrane performance using pervaporation module system could be increased from 95.04 wt% to more than 98.50wt% in about 9hr at operation temperature of 70℃ using the pervaporation module system.

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