Research on the Resource Utilization of Waste Salt Based on Thermal Decomposition Technology
To achieve the resource utilization of organic industrial waste salts,sodium chlo-ride type organic chemical waste salts produced by cellulose manufacturers were taken as a treat-ment object.We conducted pyrolysis experiments on cellulose waste salts using a self-developed py-rolysis pilot plant.The experimental results indicated that the pyrolysis process has good applicabil-ity for treating waste salts with organic matter as the main impurity and relatively single salt compo-sition.Most of the organic pollutants in waste salt can be effectively removed under conditions rang-ing from 400℃ to 450℃ .Under the conditions of pyrolysis temperature of 400℃ and pyrolysis residence time of 30 minutes,cellulose waste salt can remove more than 90% of organic pollutants from the waste salt.The purity of NaCl in the waste salt product can reach more than 98% .The reac-tion stata reaches the secondary standard of industrial dry salt in the GB/T 5462-2015 Industrial Salt Execution Quality Standard.
万方数据
维普
