Development of anodically protected hydrostatic trough-pipe type acid distributor;

Increasing mist eliminator capacity in existing sulphuric acid plant installations;

Revamping of pyrite concentrate drying system of Jiangtong-Wengfu's 400 kt/a sulphuric acid plant;

Design of fluidized bed roaster of a 100 kt/a sulphuric acid plant;

The failure accident of tube 1o tubesheet joint of nitric acid unit attached by welding be expang-ing happened sometimes,in order to equipment safety operation, tube to tubesheet joint used a new yupe are welded inside holes, and key point is the inner weld quality inspection .

Discussion on some problems existing in the fan of sulfuric acid plant with 800 kt/a capacity and its countermeasures;

Retrofits of the Air Purifiers in 6×10~4t/a Sulfuric Acid Plants;

Finally,the congestion problems that hindered the normal sulfuric acid plant production were resolve