Title:
TUBULAR COLUMN STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2004/082828
Kind Code:
A1
Abstract:
A tubular column structure formed by sealing an ion exchange resin in a tubular column capable of preventing problems with a conventional structure wherein solvent is hard to pass the resin due to an increase in flow resistance of solvent by the expansion of the resin and a column efficiency is lowered by clearances in the resin due to the shrinkage of the resin. A pair of filters (10) and (12) are disposed in the tubular column (2) so as to hold the ion exchange resin (8), and at least one of the filters is slidably installed along the inner peripheral surface of the tubular column. Thus, the volume of a space filled with the ion exchange resin can be increased according to the expansion of the ion exchange resin and decreased according to the shrinkage thereof.
Inventors:
HIRANO KEIICHI (JP)
Application Number:
PCT/JP2004/003674
Publication Date:
September 30, 2004
Filing Date:
March 18, 2004
Export Citation:
Assignee:
NIHON MEDIPHYSICS CO LTD (JP)
HIRANO KEIICHI (JP)
HIRANO KEIICHI (JP)
International Classes:
B01J20/281; B01D15/00; B01D15/04; B01J20/285; B01J47/00; B01J47/02; B01J47/12; G01N30/60; G01N30/88; (IPC1-7): B01J47/02
Domestic Patent References:
| WO1996028252A1 | 1996-09-19 |
Foreign References:
| JP2001252576A | 2001-09-18 | |||
| EP0016408A1 | 1980-10-01 |
Attorney, Agent or Firm:
Nakao, Shunsuke c/o Nakao & Ito Patent Office (3-5 Uchikanda 1-chom, Chiyoda-ku Tokyo 47, JP)
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