The word ‘diao had four meanings or usages relation to fiscal and economic policy in Han Dynasties: firstly, it meant ‘allocate and transfer ; secondly, it meant ‘purchase by government ; thirdly, it was used as general term of taxes and levies; and finally, it meant ‘exorbitant taxes and levies .

The caustic waste residue generated from alkali production using mirabilite as raw material by liquid phase process is utilized to produce light CaCO 3 and the latter is used as filling agent to modify low density polyethylene.