Title:
【発明の名称】リグノセルロース材料の脱リグニン及び漂白方法
Document Type and Number:
Japanese Patent JPH08500856
Kind Code:
A
Abstract:
PCT No. PCT/FR93/00613 Sec. 371 Date Feb. 23, 1995 Sec. 102(e) Date Feb. 23, 1995 PCT Filed Jun. 21, 1993 PCT Pub. No. WO94/00234 PCT Pub. Date Jan. 6, 1994A method is provided for delignifying and bleaching a lignocellulose material, wherein an aqueous solution of a redox catalyst and an oxidant is reacted with the material. The catalyst comprises an organometallic cation of the general formula [(1)Mno2Mn(L)]n+, wherein Mn is manganese (III) or (IV) oxide, the two Mn's of this cation may form a pair in a III-III, III-IV or IV-IV oxidative state, n is 2, 3 or 4, O is oxygen, and L is a ligand comprising 4 nitrogen atoms co-ordinating the manganese.
Inventors:
Beau, Jean-Francois
Jillor, Jiang-Jatsk
Guiniard, Claude
Suri, Jean-Louis
Berratsk, Jiyan-Baste
Jillor, Jiang-Jatsk
Guiniard, Claude
Suri, Jean-Louis
Berratsk, Jiyan-Baste
Application Number:
JP50209293A
Publication Date:
January 30, 1996
Filing Date:
June 21, 1993
Export Citation:
Assignee:
Elf Aquitaine
International Classes:
B01J31/22; B01J31/18; D21C9/10; D21C9/16; (IPC1-7): D21C9/10; B01J31/22; D21C9/16
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)