摘要:
A process of producing a metallic foil by electrolysis is disclosed, which comprises using an insoluble electrode having an electrode active coating composed of a composite oxide of iridium and tantalum on an oxygen impermeable coating formed on a thin film-forming metal substrate as an anode and depositing impurities in the electrolytic bath on the anode at an anodic potential higher than the electric potential at which the impurities in the electrolytic bath form insoluble oxides on the anode.
摘要:
The present invention is directed toward an electrolytic ozonier for treating ozone-containing waste gas and a method of treating ozone-containing waste gas using the ozonier, wherein the method includes evolving oxygen and ozone in an anode compartment of an electrolytic cell by electrolysis of water while evolving hydrogen in a cathode compartment; directing the evolved hydrogen into a waste gas treating section that contains a waste gas decomposition catalyst so as to convert the hydrogen to a harmless form by means of the catalyst; bringing the oxygen and ozone into contact with a medium to be treated in an ozone contactor so as to treat the medium; and subsequently directing waste gas containing oxygen and ozone produced as a result of treatment of the medium into the waste gas treating section where they are brought into either direct or indirect contact with the catalyst so that the ozone in the waste gas is converted into a harmless form.
摘要:
The present invention is directed toward an electrolytic ozonier for treating ozone-containing waste gas and a method of treating ozone-containing waste gas using the ozonier, wherein the method includes evolving oxygen and ozone in an anode compartment of an electrolytic cell by electrolysis of water while evolving hydrogen in a cathode compartment; directing the evolved hydrogen into a waste gas treating section that contains a waste gas decomposition catalyst so as to convert the hydrogen to a harmless form by means of the catalyst; bringing the oxygen and ozone into contact with a medium to be treated in an ozone contactor so as to treat the medium; and subsequently directing waste gas containing oxygen and ozone produced as a result of treatment of the medium into the waste gas treating section where they are brought into either direct or indirect contact with the catalyst so that the ozone in the waste gas is converted into a harmless form.
摘要:
A bipolar-electrode electrolytic cell is disclosed, which is to be used in electrolysis of an electrolytic solution having a high electric resistance and including at least two diaphragms (8) positioned to form a plurality of electrode compartments comprising two outer compartments (7) defined between the side walls of the electrolytic cell and the diaphragms positioned closest to the cell walls having a single electrode (12) and at least one electrode compartment (7') having two same-polar electrodes (4) on both sides thereof, each of said electrodes being placed on a diaphragm such that different-polar electrodes are positioned at opposing sides of the diaphragm, wherein the distance between same-polar electrodes (4) within the same compartment (7') is sufficiently large such that electrolysis therebetween does not substantially occur and wherein two of said electrodes at the terminal ends of the series connected electrolytic cell, an anode and a cathode, being further electrically connected to an anode collector (9) and a cathode collector (10), respectively, and each of the remaining anode electrodes and cathode electrodes is further connected (11) to a different-polar electrode, respectively, which face the same direction and are placed on adjacent diaphragms.
摘要:
The present invention is directed toward an electrolytic ozonier for treating ozone-containing waste gas and a method of treating ozone-containing waste gas using the ozonier, wherein the method includes evolving oxygen and ozone in an anode compartment of an electrolytic cell by electrolysis of water while evolving hydrogen in a cathode compartment; directing the evolved hydrogen into a waste gas treating section that contains a waste gas decomposition catalyst so as to convert the hydrogen to a harmless form by means of the catalyst; bringing the oxygen and ozone into contact with a medium to be treated in an ozone contactor so as to treat the medium; and subsequently directing waste gas containing oxygen and ozone produced as a result of treatment of the medium into the waste gas treating section where they are brought into either direct or indirect contact with the catalyst so that the ozone in the waste gas is converted into a harmless form.