- It can avoid the acid addition caused by HAC volatilization in dyeing, reduce the dyeing time of nylon and wool.
- Several ways of titanium white waste acid applied in calcium perphosphate production are introduced. Two-step acid addition is specially proposed.
- The process condition of preparing amyl alcohol with C5 fraction as material, through sulphuric acid addition hydrolyzation was studied.
- The reaction with dicarboxylic acid anhydrides results in an acid addition product,which alters the ratio of free basic to free acidic groups in gelatin,so as to lower the isoelectric point.