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Title: Electrochemical mercerization, souring, and bleaching of textiles

Abstract

Economical, pollution-free treatment of textiles occurs in a low voltage electrochemical cell that mercerizes (or scours), sours, and optionally bleaches without effluents and without the purchase of bulk caustic, neutralizing acids, or bleaches. The cell produces base in the cathodic chamber for mercerization and an equivalent amount of acid in the anodic chamber for neutralizing the fabric. Gas diffusion electrodes are used for one or both electrodes and may simultaneously generate hydrogen peroxide for bleaching. The preferred configuration is a stack of bipolar electrodes, in which one or both of the anode and cathode are gas diffusion electrodes, and where no hydrogen gas is evolved at the cathode.

Inventors:
 [1]
  1. (Oakland, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
870107
Patent Number(s):
5456809
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
electrochemical; mercerization; souring; bleaching; textiles; economical; pollution-free; treatment; occurs; voltage; cell; mercerizes; scours; sours; optionally; bleaches; effluents; purchase; bulk; caustic; neutralizing; acids; produces; base; cathodic; chamber; equivalent; amount; acid; anodic; fabric; gas; diffusion; electrodes; simultaneously; generate; hydrogen; peroxide; preferred; configuration; stack; bipolar; anode; cathode; evolved; gas diffusion; hydrogen peroxide; hydrogen gas; electrochemical cell; bipolar electrodes; preferred configuration; diffusion electrodes; cell produces; generate hydrogen; simultaneously generate; /205/8/204/

Citation Formats

Cooper, John F. Electrochemical mercerization, souring, and bleaching of textiles. United States: N. p., 1995. Web.
Cooper, John F. Electrochemical mercerization, souring, and bleaching of textiles. United States.
Cooper, John F. Sun . "Electrochemical mercerization, souring, and bleaching of textiles". United States. https://www.osti.gov/servlets/purl/870107.
@article{osti_870107,
title = {Electrochemical mercerization, souring, and bleaching of textiles},
author = {Cooper, John F.},
abstractNote = {Economical, pollution-free treatment of textiles occurs in a low voltage electrochemical cell that mercerizes (or scours), sours, and optionally bleaches without effluents and without the purchase of bulk caustic, neutralizing acids, or bleaches. The cell produces base in the cathodic chamber for mercerization and an equivalent amount of acid in the anodic chamber for neutralizing the fabric. Gas diffusion electrodes are used for one or both electrodes and may simultaneously generate hydrogen peroxide for bleaching. The preferred configuration is a stack of bipolar electrodes, in which one or both of the anode and cathode are gas diffusion electrodes, and where no hydrogen gas is evolved at the cathode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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