Title:
【発明の名称】リグノセルロース材料の活性酸素による漂白
Document Type and Number:
Japanese Patent JPH06505057
Kind Code:
A
Abstract:
A chemical pulp which contains reactants capable of generating dioxirane within the pulp is produced in a process which comprises mixing a pulp with reactants comprising a carbonyl compound, preferably acetone, and an oxygen donor, preferably monoperoxysulfate, in proportions which produce a water-soluble dioxirane having a molecular diameter of less than 140 angstrom units. Such a pulp bleaching process which employs dioxirane as a bleaching agent is rendered environmentally and economically acceptable by recycling the reactants employed to produce the dioxirane.
Inventors:
Lee, Chung-ri
Murray, Robert W.
Hunt, kenneth
Murray, Robert W.
Hunt, kenneth
Application Number:
JP50388592A
Publication Date:
June 09, 1994
Filing Date:
February 04, 1992
Export Citation:
Assignee:
Pulp and Paper Research Institute of Canada
The Curators of the University of Missouri
The Curators of the University of Missouri
International Classes:
D21C9/10; D21C9/16; (IPC1-7): D21C9/10; D21C9/16
Attorney, Agent or Firm:
Akira Asamura (3 outside)