7 results about "Chlorine dioxide" patented technology

The present invention provides a system for continuously and efficiently producing low concentrations of aqueous chlorine dioxide from a dilute continuous feed stream of aqueous chlorite.

The invention relates to a chlorine dioxide generating unit and a chlorine dioxide generating device. An object of the invention is to provide a chlorine dioxide generating unit capable of releasing a practically adequate amount of chlorine dioxide for a long period of time while being small in size. Provided is the chlorine dioxide generating unit characterized in that the unit is provided with a chemical agent accommodating part and at least two light source parts, the light source parts are used for generating light comprising essentially the visible region of wavelengths, a chemical agent including a solid chlorite is accommodated in the chemical agent accommodating part, the chemical agent accommodating part is provided with one or a plurality of openings so that air can move between the inside and outside of the chemical agent accommodating part, the one or plurality of openings in the chemical agent accommodating part are covered by a breathable sheet, and the chemical agent present inside the chemical agent accommodating part herein is irradiated by the light generated from the light source parts, whereby chlorine dioxide is generated.

The invention discloses a method for recovering acetic acid from waste gas exhausted in production of chloroacetic acid. The recovery method can be used for recovering acetic acid from waste gas exhausted in production of chloroacetic acid. The recovery method comprises the following steps of: taking glacial acetic acid, adding a catalyst, introducing chlorine gas to obtain chloroacetic acid, and crystallizing the chloroacetic acid to obtain a finished product, wherein in the process of producing the chloroacetic acid, chlorine hydride and waste gas are generated. The chlorine hydride is absorbed by water to generate hydrochloric acid, and the waste gas is cooled, and absorbed by waste to recover acetic acid.

The invention discloses a sterilization mask which comprises a mask body and an agent bag, the mask body is provided with an outer surface layer, and an accommodating space is formed in the inner sideof the outer surface layer; the agent bag is arranged in the accommodating space, a first reactant fills the space between the agent bag and the inner wall of the accommodating space, and a second reactant is sealed in the agent bag; one of the first reactant and the second reactant is solid chlorate, and the other one of the first reactant and the second reactant is solid oxalic acid; when the agent bag is extruded by external force, the agent bag releases the second reactant, and the first reactant and the second reactant react to generate chlorine dioxide. The sterilization mask can achieve active sterilization.

The invention relates to a technology for detecting the content of active ingredients of a disinfectant, in particular to test paper for determining the content of chlorine dioxide and a preparation method thereof. The test paper comprises a test paper substrate and a test paper detection base layer adhered to one end of the test paper substrate, and the test paper detection base layer is coated with a reaction substrate which is colorless and develops color after being in contact with chlorine dioxide. Compared with the prior art, a solution method is converted into a test paper method, a specific environment and professional operation skills are not needed, and when detection is needed, rapid detection can be achieved, the detection speed is high, the color gradation of a detection result is clear, indication is accurate, and use is convenient; the test paper for rapidly detecting the concentration of the chlorine dioxide disinfectant can be used in the industries of medical treatment and public health, food processing, catering and the like, and has the characteristics of accurate concentration indication, clear color gradation of different concentrations, simplicity and convenience in operation, high test speed, no toxicity to a human body, high safety and the like.

The present invention relates to a method for treating acute and chronic sinusitis, and in particular, severe chronic sinusitis by exposing affected tissue of the sinus and contiguous tissue in the, nasal cavity and greater oral cavity to effective amounts of chlorine dioxide as a bioactive agent. Compositions and methods of treatment are disclosed herein.