rexresearch.comSodium Chlorite Preparation
Patents
[ for Generation of Chlorine Dioxide &c ]
[ for Generation of Chlorine Dioxide &c ]
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N103159178A
Preparation method of sodium chlorite
AbstractPreparation method of sodium chlorite
The invention discloses a preparation method of sodium chlorite. The preparation method comprises the following steps of (1) enabling sodium chlorate solution to react with hydrochloric acid to generate chlorine dioxide gas and chlorine; (2) leading chlorine dioxide gas and chlorine into sodium chlorite solution to further react, so as to generate chlorine dioxide gas; (3) leading the chlorine dioxide gas into sodium hydroxide solution, and adding hydrogen peroxide to react, so as to generate sodium chlorite at the same time; (4) crystallizing and drying sodium chlorite prepared in the step (3) to obtain a final product, wherein the concentration of the sodium chlorate solution in the step (1) is 25-33%, the concentration of hydrochloric acid solution in the step (1) is 31%, and the molar ratio of the hydrochloric acid to chlorous acid in the step (1) is (1-1.5) to 2. The preparation method of sodium chlorite disclosed by the invention does not utilize concentrated sulfuric acid of which the concentration is over 95%, is easy in control of the reaction process, not drastic in reaction, higher in safety coefficient, low in cost, and suitable for industrial large-scale application at the same time.
CN1830259A
Chlorinedioxide disinfectant and its preparation method
A ClO2 disinfectant is prepared from the chlorite chosen from ammonium chlorite, lithium chlorite, sodium chlorite and potassium chlorite and the persulfate chosen from ammonium persulfate, lithium persulfate, sodium persulfate and potassium persulfate through drying, pulverizing, mixing, adding water absorbent, synergist and sodium chloride, and stirring.
US2520915A
Preparation of sodium chlorite
CN108030705A
Composite sodium chlorite effervescent mouth-washing tablets used for oral caring and preparation method thereof
AbstractComposite sodium chlorite effervescent mouth-washing tablets used for oral caring and preparation method thereof
The invention provides composite sodium chlorite effervescent mouth-washing tablets used for treating and preventing oral diseases. The composite sodium chlorite effervescent mouth-washing tablets aresolid tablets, while in use, the effervescent mouth-washing tablets are dissolved in 100-150 mL of warm water, and mouth is washed for 30 s and then the water is spited. The composite sodium chloriteeffervescent mouth-washing tablets comprise the following raw materials: 5-20% of chlorine dioxide maternal sodium chlorite, 10-30% of an acidifying agent, 5-30% of an effervescent agent, 1-20 %of astabilizing agent, 1-10% of a pH conditioning agent, 1-5% of a foaming agent, 1-5% of an emulsifier, 1-20% of a flavouring agent, and 1-5% of an accessory filler. The effervescent mouth-washing tablets have the advantages of high-efficiency sterilization, wide spectrum and safety, have good efficacy for treating gingivitis, removing dental plaque, and alleviating bad breath, the tablets have the advantages of convenient carrying, easy storage, simple application method, and high biological availability.
CN109010363A
AIDS virus molecular targeting immune oxygen therapy drug and preparation method thereof
AbstractAIDS virus molecular targeting immune oxygen therapy drug and preparation method thereof
The invention provides an AIDS virus molecular targeting immune oxygen therapy drug and a preparation method thereof, and relates to uses of sodium chlorite or potassium chlorite in preparation of drugs for treating HIV infection and/or AIDS, wherein the concentration of sodium chlorite or potassium chlorite is 0.0015-0.5 wt%. The invention further relates to a pharmaceutical composition and uses of the pharmaceutical composition in preparation of drugs for treating HIV infection and/or AIDS, wherein the raw materials of the pharmaceutical composition comprise, by weight, 2-10% of sodium chlorite or potassium chlorite, 2-10% of sodium bicarbonate or potassium bicarbonate, 0.2-5% of sodium carbonate or potassium carbonate, 0.3-1.5% of hydrogen peroxide, and 95-73.5% of deionized water. According to the present invention, the pharmaceutical composition can clear AIDS and other viruses and functionally cure AIDS, wherein the diet, the sleep, the body weight, the physical strength and the spirit of patients are obviously improved during the treatment, the quality of life is comprehensively improved, and the normal life and work is restored.
CN103642062A
Preparation method of high-catalytic-activity cuprous oxide/regenerated cellulose composite film
AbstractPreparation method of high-catalytic-activity cuprous oxide/regenerated cellulose composite film
The invention relates to a preparation method of a high-catalytic-activity cuprous oxide/regenerated cellulose composite film. The preparation method comprises the following steps: dissolving natural cellulose in a green solvent, running to obtain a regenerated cellulose film, carrying out surface modification on the regenerated cellulose film sequentially with a sodium periodate solution and a sodium chlorite solution, and finally, sequentially immersing in a copper salt solution, a sodium hydroxide solution and a glucose solution to react to obtain the high-catalytic-activity cuprous oxide/regenerated cellulose composite film. The high-catalytic-activity cuprous oxide/regenerated cellulose composite film has the advantages of simple preparation process, low cost, no pollution and high catalytic activity.
CN109172745A
A pet oral bactericide and a preparation method thereof
AbstractA pet oral bactericide and a preparation method thereof
The invention provides a pet oral bactericide and a preparation method thereof. The pet oral bactericide of the invention is characterized in that the pet oral bactericide comprises sodium chlorite 2-7 parts, sodium dichloroisocyanurate 3-8 parts, sodium bisulfate 10-20 parts, sodium bicarbonate 5-15 parts, boric acid 1-3 parts, hypochlorous acid 2-5 parts, dendrobium extract 5-15 parts, dandelionextract 5-15 parts and 100 parts of distilled water. The bactericide can effectively kill the initiating factors of various oral diseases such as fungi, bacteria, mycoplasma, viruses, protozoa and the like in the oral cavity of pets, inhibit their growth, change the original environment conducive to the breeding and reproduction of bacteria in the oral cavity, prevent various common diseases of the oral cavity, remove peculiar smell of the oral cavity, and control and eradicate oral inflammation.
CA2273667A1
HIGH PURITY ALKALI METAL CHLORITE AND METHOD OF MANUFACTURE
AbstractHIGH PURITY ALKALI METAL CHLORITE AND METHOD OF MANUFACTURE
Alkali metal chlorite, particularly sodium chlorite, is produced with a low carbonate level by combining a chlorine dioxide generating system operating at subatmospheric pressure with a chlorite formation reactor in which the chlorine dioxide reacts with hydrogen peroxide in the presence of aqueous alkali metal hydroxide, particularly sodium hydroxide.
GB672197A
Manufacture of chlorites
AbstractManufacture of chlorites
Chlorites are formed by reducing chlorine dioxide with arsenious acid in the presence of an alkali metal hydroxide, or alkaline earth metal oxide or hydroxide, while avoiding an excess of arsenious acid. 70-80 per cent of the arsenate produced, e.g. sodium arsenate, precipitates from the chlorite solution, and the balance is recovered by evaporation. It is reconverted to arsenious acid, for reuse, by treatment in solution with sulphur dioxide.
GB605983A
Manufacture of alkali chlorites
AbstractManufacture of alkali chlorites
In the manufacture of an alkali chlorite, a mixture of chlorine and chlorine-dioxide, produced by the action of hydrochloric acid on an alkali and/or alkaline earth chlorate and entrained by air, is caused to undergo particle physical purification of the chlorine dioxide by being mixed with a concentrated solution of an alkali or alkaline earth chloride and/or chlorate, whereby most of the chlorine dioxide and a little chlorine are absorbed, which mixture is then desorbed, e.g. by a current of air, and further purified by being passed through a solution or milk of lime or another alkaline earth base after which the chlorine dioxide is absorbed by an alkali hydroxide and/or carbonate, the products, e.g. sodium chlorite and sodium chlorate thus obtained being separated by crystallisation and, if desired, by evaporation. The chlorates, for the production of which the unabsorbed gases from the partial physical purification may be used, fused in the production of the chlorine dioxide may be previously freed from all or a part of alkali or alkaline earth chlorides. The solution after desorption may be used for absorbing further quantities of the gases, while the gaseous mixture from the desorption tower may be brought into contact with a solution or milk of an alkaline earth hydroxide to produce a gaseous mixture containing only air and chlorine, dioxide and a solution of alkaline earth chloride and chlorate which may be returned to the chlorine dioxide generator, as may be the alkali chlorate separated from the chlorite in the final stage while the mother liquors may be returned to the final absorption.