The process steps can be subdivided into three sections: lime slaking, reaction, and filtration, all normally operated as batch operation (FIG. 3Ca(OH)2+6Sâ2CaS2+CaS2O3+3H2O 90.2 Oxidation rates acceptable for preferred commercial production were found in the about 55 to 75Â° C. temperature range at a total pressure of about one atmosphere (0.0 psig), provided active contacting was employed to maintain a high contact area. 22.33 Filtration of calcium thiosulfate slurry produced from the oxidation reaction was investigated thoroughly for an efficient filtration method. However, the two sulfur atoms in S2O3 â2 are not equivalent. 7.1 Weights and salting-out temperatures are available from vendors. Process and apparatus for preparing calcium thiosulfate solution, Systems and methods for removing gaseous pollutants from a gas stream, Process for preparation of calcium thiosulfate liquid solution from lime, sulfur, and sulfur dioxide, Continuous process for preparation of calcium thiosulfate liquid solution, Systems and methods for removing particulate matter from a gas stream, Systems and methods for removing sulfur dioxide from a gas stream, Method for oxidation for producing potassium thiosulfate, Continuous process for preparing a liquid solution of calcium thiosulfate, Continuous process for the preparation of a liquid solution of calcium thiosulfate, improved, Stable solutions of calcium thiosulphate and a process for the manufacture thereof, A new procedure for the preparation of calcium tiosulfate to increase its stability during its preparation, as well as its dissolutions (Machine-translation by Google Translate, not legally binding), Method and apparatus for oxidizing sulphide-containing aqueous solutions, Method for producing oxidized white liquor, Production of high purity calcium thiosulfate, Composition and method for treating flue gas and methanol containing effluents, Process for oxidizing substances dissolved or in suspension in an aqueous solution, Sulfur dioxide removal from flue gases with sulfite oxidation inhibition, Process for regenerating sodium sulphide from the sodium sulphate which forms in treating lead paste from exhausted batteries, Process for production of ammonium thiosulphate, Process for aqueous phase oxidation of sulfur or sulfide to thiosulfate, bisulfite or sulfite ions using air, Calcium fluoride manufacturing method, recycling method and recycling method, Method for manufacture of products containing disalts of formic acid, Method for removing nitrogen oxides using ferricion-EDTA complex solutions, Process for the dissolution of copper metal, Dissolution of copper metal in aqueous alkanolamine to form copper containing aqueous solution, Method of removing sulfur dioxide from combustion exhaust gas, Process for continuously producing chlorine dioxide, Process and apparatus for the generation of chlorine dioxide using a replenished foam system, Method and apparatus for making aqueous chlorine dioxide, Continuous flow reactor and method of using the same for treating nitrogen and phosphorus-containing wastewater, Method for producing high-purity hexafluorophosphoric acid compound, Chemical composition and method for producing chlorine dioxide using the same, Process for the production of chlorine dioxide, Process for producing a chlorine dioxide-containing disinfectant solution for water treatment, Production of formic acid-formate e.g. However, it is contemplated that additional equipment and controls could be used to implement continuous operation. Calcium is an essential plant nutrient. Water solubilities of thiosulfates decrease from ammonium to alkali metals to alkaline earth thiosulfates. An increase in the reaction temperature did increase the rate of oxidation, especially for the higher-pressure cases, but not as much as would be expected (FIGS. Flocculants and coagulants have been used in conjunction with filter aids for hard to filter slurries. It was observed that anionic flocculants lose their effectiveness at about pH>11. Concentrations of Ë30% calcium thiosulfate, as well as crystalline calcium thiosulfate, are attainable by evaporation of the solution and dehydration of the crystals. 14.88 91.8 floc. 0000002881 00000 n The process of the invention includes a series of process steps, which can be implemented in equipment designed to provide the desired process conditions.