Topic
Sodium chlorate
About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.
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Patent•
25 Sep 1974
TL;DR: In this paper, a method for preparing sodium chlorate comprises electrolyzing aqueous sodium chloride in the presence of at least one phosphorus-containing agent for complexing alkaline earth impurities, thereby advantageously extending the periods of uninterrupted satisfactory cell operation at substantially constant applied potential.
Abstract: A method for preparing sodium chlorate comprises electrolyzing aqueous sodium chloride in the presence of at least one phosphorus-containing agent for complexing alkaline earth impurities, thereby advantageously extending the periods of uninterrupted satisfactory cell operation at substantially constant applied potential and facilitating the cleaning of electrodes between such periods.
10 citations
TL;DR: In this paper, the specific and equivalent conductances of molten sodium chlorate and of its mixtures with sodium nitrate have been determined over the temperature range 240-280 °C.
Abstract: The specific and equivalent conductances of molten sodium chlorate and of its mixtures with sodium nitrate have been determined over the temperature range 240–280 °C. The results are treated as tem...
9 citations
TL;DR: A detailed examination of the Raman spectra of NaClO3 at liquid N2 temperature has revealed some results different from those previously reported as mentioned in this paper, leading to some interesting conclusions.
9 citations
Patent•
08 May 2002
TL;DR: In this article, negative pressure aeration technology is adopted, and in a multi-stage reactor, material is fed continuously for reaction at negative pressure condition, and the chlorine dioxide gas is absorbed with frozen water at 5-10 deg.c in an absorption tower to prepare free and high concentration aqueous solution of chlorine dioxide.
Abstract: By using sodium chlorate as oxidant and hydrogen peroxide or methanol as reductant and through reaction inside sulfuric acid medium, chlorine dioxide gas is generated. The chlorine dioxide gas is absorbed with frozen water at 5-10 deg.c in an absorption tower to prepare free and high concentration aqueous solution of chlorine dioxide. During the production, negative pressure aeration technology is adopted, and in a multi-stage reactor, material is fed continuously for reaction at negative pressure condition. The said method has the advantages of great production capacity, simple operation, low cost, high material utilization, high chlorine dioxide purity, etc. and may be used in paper pulp bleaching and disinfection in waterworks and sewage plant.
9 citations
TL;DR: In this paper, the technology of molybdenum extraction using sodium chloride electrolyte and its kinetics have been investigated, and the results show that leaching temperature, sodium chlorate and sulfuric acid concentration significantly affected molybenite extraction compared with other experimental parameters.
Abstract: BACKGROUND: In recent years, there has been an increasing focus on the hydrometallurgical processing of molybdenite, with the decline of high-grade and easily handled molybdenum minerals. In this work, the technology of molybdenum extraction from molybdenite concentrate using sodium chloride electrolyte and its kinetics have been investigated.
RESULTS: The results show that leaching temperature, sodium chlorate and sulfuric acid concentration significantly affected molybdenum extraction compared with other experimental parameters. With a NaClO3 concentration of 320.39 g L−1; sulfuric acid concentration of 73.3 g L−1, a liquid-solid ratio of 5:1, temperature 70 °C, agitation speed 500 rpm, the molybdenum dissolution rate achieved was 99.67% in 240 min. The activation energy of the dissolution reaction was 104.57 kJ mol−1.
CONCLUSION: The synthesized sodium chlorate electrolyte, an effective leaching agent, was used directly for the treatment of molybdenite concentrate. Removal of the crystallization and purification of sodium chlorate significantly reduced production costs. The results indicated that the inner diffusion and external diffusion control models were not suitable for this leaching reaction and the dissolution process was controlled by chemical reaction. Copyright © 2012 Society of Chemical Industry
9 citations