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Vanadium is an important metal elements in industrial production , due to its excellent features , and now increasingly wide range of applications . The vanadium resources exist in the stone coal , vanadium extraction from stone coal as an important development direction of China's use of vanadium resources . Lower traditional methods of stone coal vanadium vanadium recoveries , waste of resources , large amount of harmful emissions , serious environmental pollution problems , studying a new technology instead of the traditional process , reduce pollution , improve resource utilization has important . In this paper, the wet process in the extraction of stone coal vanadium pentoxide , the design orthogonal design operating pressure , the concentration of sulfuric acid , the holding time on the stone coal vanadium pentoxide leaching rate , to determine the optimum operating conditions ; to pressure container design standards and norms , and to design a set of stone coal vanadium extraction reaction device ; install the safety valve to prevent explosion due to excessive pressure in the top of the reactor design microcontroller - based equipment stone coal vanadium control system. The study results showed that the sulfuric acid concentration of 25% (mass concentration) , the liquid to solid ratio of 0.8:1 (volume ratio) and incubated in 1.5MPa saturated water vapor pressure environment 2.5h, vanadium leaching rate of about 78% . The design of the reactor pressure of 1.7MPa, and the design temperature of 205 ° C , and the reactor wall thickness of 9mm material is 16MnR ; temperature of the reactor control system is responsive and stable control . The process does not produce harmful gases and dust, high vanadium recovery , reactor and temperature control system is running in good condition , and provides a theoretical foundation for the process of industrialization .
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