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US 6,187,170 B1Granted
System for the electrochemical delignification of lignin-containing materials and a process for its application
AssigneeConsortium fur Elektrochemische Industrie GmbH
InventorNorbert Hampp
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Abstract
System for the electrochemical cleavage of compounds which includes a mediator which has no metals or heavy metals and at least two electrodes for the electrochemical activation of the mediator.
Claims15
A system for the electrochemical cleavage of compounds comprising:
- an aqueous liquid containing a mediator which is devoid of a substance selected from the group consisting of a metal, chlorine, and a heavy metal and
- at least two electrodes for the electrochemical activation of the mediator, and
- a compound to be cleaved by said electrochemical activation of the mediator.
A process for the electrochemical cleavage of compounds, comprising
- providing an aqueous liquid containing a compound to be cleaved, and at least one mediator which is devoid of a substance selected from the group consisting of a metal, chlorine, and a heavy metal;
- immersing an anode and a cathode in said liquid;
- and applying a d.c. voltage to said anode and cathode, so that said compound is cleaved by electrochemical activation of said mediator.
A system for the electrochemical cleavage of compounds comprising
- a liquid containing a mediator which is devoid of a substance selected from the group consisting of a metal and a heavy metal;
- at least two electrodes for the electrochemical activation of the mediator;
- a compound to be cleaved by said electrochemical activation of the mediator;
- and
- wherein the mediator is selected from the group consisting of 1-methylvioluric acid, 1,3-dimethylvioluric acid, thiovioluric acid, alloxan 4,5-dioxime and alloxan 5-oxime hydrate.
2 more elements
A process for the electrochemical cleavage of compounds, comprising
- providing a liquid containing a compound to be cleaved, and at least one mediator which is devoid of a substance selected from the group consisting of a metal and a heavy metal;
- immersing an anode and a cathode is said liquid;
- applying a d.c. voltage to said anode and cathode, so that said compound is cleaved by electrochemical activation of said mediator;
- wherein the mediator is selected from the group consisting of 1-methylvioluric acid, 1,3-dimethylvioluric acid, thiovioluric acid, alloxan 4,5-dioxime and alloxan 5-oxime hydrate.
1 more element
Dependencies are inferred from the claim text.