In this paper,introduction is made for technical features and cases in sulfuric acid making process from desulfurization wastewater,which is characterized with “sulfur slurry feeding” and “combustion with rich oxygen air”.This process has advantages of high efficiency,stable operation,safety,environment\|friendliness and high automation level.The process has been put into operation in large\|scale coking plants in China,which has effectively tackled the problems,such as the unmarketable low purity sulfur,poor utilization of sulfur resource and desulfurization wastewater pollution due to wet catalytic oxidation process with HPF & PDS as catalyst and with ammonia as alkali source.It is proved to be a solution for sustainable development of coking industry in the long run.

"> Sulfur slurry feeding, Combustion with rich oxygen air, Desulfurization and acid making, Technical features, Application