The mechanisms of the particle formation during hot H3PO4 wet etching was analyzed,and three different solutions were proposed,the best way to solve particle issues after hot H3PO4 wet etching were given by means of experim.

Phosphoric acid production was introduced,including production method,development and direction of thermal-process phosphoric acid.

For the excessive P_2O_5 in the offgas discharged from thermal-process phosphoric acid production in a plant,as well as the actual conditions in the plant,the offgas quantity and excess air ratio in the offgas system are calculated,and the operating conditions are analyzed.

Based on the knowledge and analysis for furnace-process phosphoric acid production, the technology of heat recovery and utilization in the yellow phosphorus burning from the angles of energy, environment and economy is proposed and researched.

In order to recycle the waste heat in process for the production of phosphoric acid, it is very important to research the characteristics of heat transfer and to estimate the quantity of usable waste heat in phosphoric furnace.

The 3D structure of thermostable alkaline phosphatase(FD\|TAP) was modeled based on the known X\|ray structure of Escherichia coli alkaline phosphatase (BAP),using homology modeling.

dk/services/CPHmodels/) and the thermostable performance of 4 thermostable alkaline phosphatase(TAP) mutants selected from a clone bank of more than 200 mutants were analyzed to explore the mechanism of thermostability change.