In the year 1996, we found that, if the closed recycling reaction between acid?alkali?salt should be completed, we can be able to zero discharge in the clean production of chemical technology process. At the beginning of the year we study the acid?alkali united production from metallic salts by hydrolytic action as a new unit operation of chemical engineering. In the year 2012, we get up the theory of dynamic closed system with multy-phase and chemical kinetics, and find the third group from entropy to order structure in the nonequilibrium thermodynamics. If the new theory expanded to the solar system, we discover the closed circular flow of entropy and universal eternal self-motive machine, so we give the new definition of the times.