Title:
NOBLE METAL ADSORBENT USING POLYPHENOL DERIVED FROM GRAPE SEEDS AS RAW MATERIAL
Document Type and Number:
Japanese Patent JP2016047505
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a novel noble metal adsorbent that achieves recovery of noble metal at a low cost and with a low environmental load.SOLUTION: The noble metal adsorbent including an insoluble gel produced by adding a crosslinking agent to polyphenol derived from grape seeds is provided. The polyphenol includes a proanthocyanidin oligomer. It is preferable that the average degree of polymerization of the oligomer is adjusted to 3 to 4. Glutaraldehyde can be used as a crosslinking agent and the glutaraldehyde is preferably added in an approximately equimolar amount based on the proanthocyanidin oligomer.SELECTED DRAWING: Figure 1
Inventors:
INOUE MOTOKI
YAMAZAKI AKIHIRO
YAMAZAKI AKIHIRO
Application Number:
JP2014173559A
Publication Date:
April 07, 2016
Filing Date:
August 28, 2014
Export Citation:
Assignee:
INOUE MOTOKI
International Classes:
B01J20/26; C22B3/24; C22B11/00
Domestic Patent References:
| JP2003226923A | 2003-08-15 | |||
| JPH0566291A | 1993-03-19 | |||
| JP2000308825A | 2000-11-07 | |||
| JP2007297304A | 2007-11-15 | |||
| JP2014125641A | 2014-07-07 | |||
| JPH0215128A | 1990-01-18 |
Attorney, Agent or Firm:
Patent Corporation MIP