Title:
PYROGEN ADSORBING MATERIAL, METHOD AND DEVICE FOR REMOVING PYROGEN
Document Type and Number:
Japanese Patent JP3219830
Kind Code:
B2
Abstract:
PURPOSE: To obtain a pyrogen adsorbing material possible to selectively adsorb pyrogen in a solution and excellent in stability by depositing a compound having log P value of specific value or above (P is partition coefficient in octanol-water system) on a porous water insoluble carrier.
CONSTITUTION: The pyrogen adsorbing material is obtained by depositing the compound (e.g. cetylamine) having ≥2.50 log P value (P is partition coefficient in octanol-water system) on the porous water insoluble carrier (e.g. cellulose). Pyrogen is adsorbed by allowing the pyrogen adsorbing material into contact with a pyrogen contained solution. The adsorbing material, on which pyrogen is adsorbed, is heated at 70-125°C to regenerate the adsorbing material. Or the adsorbing material is regenerated by heat treating the pyrogen adsorbing material, on which pyrogen is adsorbed, at 30-80°C in 0.05-5 normal basic aq. solution. As a result, pyrogen in the solution is selectively adsorbed and the pyrogen adsorbing material excellent in stability is obtained.
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Inventors:
Yoko Kajiwara
Kyousuke Hirano
Kazuyuki Takigawa
Kyousuke Hirano
Kazuyuki Takigawa
Application Number:
JP8995892A
Publication Date:
October 15, 2001
Filing Date:
March 13, 1992
Export Citation:
Assignee:
Kanegafuchi Chemical Industry Co., Ltd.
International Classes:
B01D15/00; B01J20/26; C02F1/28; (IPC1-7): B01J20/26; B01D15/00; C02F1/28
Domestic Patent References:
| JP3238004A | ||||
| JP57183712A |
Attorney, Agent or Firm:
Kenji Itami