Resource utilization method of crude sodium sulfate

Abstract

The present disclosure provides a resource utilization method of crude sodium sulfate. The method comprises the following step: reducing the crude sodium sulfate to form a sodium sulfide solution; making the sodium sulfide solution perform a first reaction with chlorine to obtain sulfur and a sodium chloride solution; and electrolyzing the sodium chloride solution to obtain a sodium hydroxide solution and chlorine, and supplying the generated chlorine to the sodium sulfide solution to perform the first reaction. In the above resource utilization method of crude sodium sulfate, the sodium hydroxide is generated by combining relatively simple and mature process steps, and the crude sodium sulfate containing sodium chloride and sodium sulfate can be effectively converted to the sodium hydroxide in large market demand, so that complete recycling of sodium element and sulfur element is realized, which not only can fully utilize the resources and protect the environment, but also can create great economic benefits and environmental benefits, thus having a great significance to realize the green development of relevant industries.

Dependencies are inferred from the claim text.