Continuous process for preparing a liquid solution of calcium thiosulfate, improved

Adding the patent number P201131555, by a continuous process for preparing a liquid solution of calcium thiosulfate. # An efficient process for the continuous preparation of calcium thiosulfate (CaS {sub, 2} O {sub is described, 3) from calcium sulfide by oxidation. The process involves oxidizing an intermediate of calcium polysulfide in a series of reactors to produce calcium thiosulfate as a clear liquid at high concentration with minimal byproducts. The process produces the complete destruction of polythionates, allowing the calcium thiosulfate produced is useful in certain leaching processes for precious metals. The invention further makes it possible to recycle the process water from the leaching process for use as raw material reactive in the process for the production of calcium thiosulfate.