Showing papers on "Sodium chlorate published in 1974"
Patent•
11 Sep 1974
TL;DR: In this paper, a membrane-free axial flow electrolytic cell is provided, in which the anodes and cathodes are perforated and lie transversely of a conduit through which an ion containing and conducting medium is pumped.
Abstract: There is provided a membrane-free axial flow electrolytic cell in which the anodes and cathodes are perforated and lie transversely of a conduit through which an ion containing and conducting medium is pumped This device is especially useful in the electrolytic recovery of metal values from acid leach solutions from low grade ores, eg, copper, and for the carrying out of electrochemical reactions such as the production of sodium hypochlorite or sodium chlorate from NaCl
25 citations
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 article, after oxidising sulphides to sulphates with a mixture of sodium chlorate and hydrochloric acid, the sample is refluxed with a reducing mixture of a reducing mix of sodium iodide, red phosphorus, hypophosphorous acid, orthophosphoric acid and propionic acid.
Abstract: After oxidising sulphides to sulphates with a mixture of sodium chlorate and hydrochloric acid, the sample is refluxed with a reducing mixture of sodium iodide, red phosphorus, hypophosphorous acid, orthophosphoric acid and propionic acid. The hydrogen sulphide generated is absorbed in potassium hydroxide solution and titrated against 2-(hydroxymercuri)benzoic acid solution with dithizone as indicator. The approximate range covered is 5 to 2000 mg kg–1 of sulphur in the rock.
9 citations