Topic
Sodium chlorate
About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.
Papers published on a yearly basis
Papers
More filters
Patent•
06 Jun 1984
TL;DR: In this paper, a solution of acid sodium chlorate at high sulphuric acid normality to which methanol is fed is used to produce high efficiency chlorine dioxide, and the incidence of white-out is avoided by feeding chloride ions to the reaction medium.
Abstract: @ Chlorine dioxide is formed at high efficiency from a solution of acid sodium chlorate at high sulphuric acid normality to which methanol is fed. The reaction medium is at its boiling point under a subatmospheric pressure. The incidence of white-outs is avoided by feeding chloride ions to the reaction medium, while the efficiency of chlorine dioxide production remains high. The chlorine dioxide generating process may be effected over a wide range of total acid normality from about 7 to about 12 normal.
2 citations
2 citations
TL;DR: A new family of cathodic materials for the electrosynthesis of sodium chlorate based on iron aluminide doped with a catalytic element such as ruthenium has recently been reported.
2 citations
Patent•
27 Aug 1980
TL;DR: In this paper, a continuous method is described for prodn. of chlorine dioxide by reduction of chlorate ions with chloride ions in an acid medium resulting from the introduction into sodium chloride soln.
Abstract: Continuous method is described for prodn. of chlorine dioxide by reduction of chlorate ions with chloride ions in an acid medium resulting from the introduction into sodium chloride soln. of sodium chlorate and hydrochloric acid at boiling point under sub-atmospheric pressure. The products are a mixt. of ClO2, Cl and steam. The process comprises reacting at 30-85 deg.C and a pressure of 20-400mm Hg NaClO3 at least 75% saturation, the mole ratio of chlorate to chloride ions being 1-6:1. The true hydrogen ion concn. of the mixt. is 0.5-0.3N. A soluble Pd salt (chloride) is dissolved in the reaction medium as catalyst in an amount of 5-25mg/l. Improved yield is achieved with less catalyst than in prior art.
2 citations
Patent•
20 Mar 1990
TL;DR: In this paper, a ruthenium trichloride was used as a catalyst for quinolinic acid synthesis in an acid aqueous medium such as sulfuric acid by simultaneous addition of a chlorate and hydrogen peroxide.
Abstract: PURPOSE: To obtain quinolinic acid useful as an intermediate for pressure- sensitive dyestuffs, agricultural chemicals and drugs from inexpensively obtainable raw materials under a mild condition in high yield by oxidizing quinoline through simultaneous addition of a chlorate and hydrogen peroxide. CONSTITUTION: Ouinoline is oxidized in an acidic aqueous medium such as sulfuric acid by simultaneous addition of a chlorate and hydrogen peroxide preferably in the presence of a ruthenium compound as a catalyst at 40°C to the reflux temperature of the reaction solution to give the objective quinolinic acid. Industrially inexpensively obtainable sodium chlorate is preferably as the chlorate and the amount of sodium chlorate used is preferably 0.5-0.8mol based on 1mol quinoline. The amount of hydrogen peroxide is 0.5-0.8mol. The amount of the acidic aqueous medium is 3-10 acid equivalents based on 1mol quinoline and the acidic aqueous medium has preferably 3-13 normal acid concentration. Ruthenium trichloride may be cited as the ruthenium compound of the catalyst and the amount of the ruthenium trichloride used is 10 -5 to 10 -2 mol based on 1mol quinoline. COPYRIGHT: (C)1991,JPO&Japio
2 citations