Circulating Cooling Water System Environmentally Friendly Anti-scaling The Development Of Corrosion Inhibitors

With principle of green chemistry, we design a one-step synthesis method todevelop a polybasic copolymer, phosphonic carboxylic acid, which takes water as solution,malefic anhydride, acrylic acid and sodium hypophosphite as raw materials and hydrogenperoxide as initiator with some catalyst added. Optimized processing conditions andproper mole ratio of reactants also have been established, and the total phosphorouscontent is less than 1.46％(based on PO₄^3-). The results of static, dynamic and field testsshow that this kind of product has a excellent corrosion inhibition and scale inhibition, lowphosphorous content, meets requirements of environment protection and has a promisingapplication future.The major research fields is to produce polycarboxyl acid based on aqueous solvents, including developing catalysts with high efficiency, screening initiator, determining conditions for polymer phosphorization, analyzing structure analysis,measuringmolecular weight, testing corrosion inhibition and scale inhibition ofproduct, metering unreacted monomer, assaying total phosphorous content, establishing a economic,effective synthesis process and evaluation molecular of polymers produced.