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US 2021/0002134 A1Published application
Method and device for producing chlorine dioxide
OwnerMatthias Rothe, Wolfgang Weiblerinventors
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OwnerMatthias Rothe, Wolfgang Weiblerinventors
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In order to provide a method with which the costs incurred in conventional methods for producing chlorine dioxide according to the chlorite-acid method can be significantly lowered, a method is proposed according to the invention, in which an acid, a chlorite and optionally water are introduced into a reactor, wherein in the method the reaction temperature in the reactor is determined and the quantity of acid, chlorite and/or water which is/are introduced into the reactor is chosen such that the acid introduced into the reactor is introduced into the reactor with a molar excess relative to the chlorite introduced into the reactor, wherein the level of the molar excess is varied with the level of the reaction temperature determined. In addition, the present invention relates to a device which is suitable for implementing the method according to the invention.
Method for producing an aqueous solution of chlorine dioxide in which an acid, a chlorite and optionally water are introduced into a reactor, characterized in that in the method the reaction temperature in the reactor is determined and the quantity of acid, chlorite and/or water which is/are introduced into the reactor is chosen such that the acid introduced into the reactor is introduced into the reactor with a molar excess relative to the chlorite introduced into the reactor, wherein the level of the molar excess is varied with the level of the reaction temperature determined.
Device (1) for producing an aqueous solution of chlorine dioxide, wherein the device has a reactor (11), a first line (5) for introducing an acid into the reactor (11), a second line (6) for introducing a chlorite into the reactor (11) and optionally a third line (7) for introducing water into the reactor (11), characterized in that the device has an apparatus (13) for determining the reaction temperature in the reactor (11) and a control unit (12) for controlling the flow of acid, chlorite and/or water via the first, second and/or third line (5, 6, 7) into the reactor (11), wherein the control unit (12) is set up such that the acid introduced into the reactor (11) is introduced into the reactor (11) with a molar excess relative to the chlorite introduced into the reactor (11), wherein the molar excess varies with the level of the reaction temperature.
Dependencies are inferred from the claim text.