微波辐射合成水煤浆添加剂的研究

Synthesis of the additive for coal water slurry with microwave irradiation

研究在微波辐射条件下,利用木质素磺酸钠和丙烯酸在硝酸铈铵引发下进行非均相接枝共聚反应,合成接枝共聚物作为水煤浆添加剂。经过正交实验得出最佳合成工艺条件:单体体积与木质素磺酸钠用量比为5∶1,引发剂硝酸铈铵的用量为0.12mL,中和度为75%。在微波炉内反应3min,用所得的接枝共聚物配制的水煤浆浓度可达65%以上。

A additive for CWS was synthesized from sodium lignosulphonate and acrylic acid by graft copolymerization reaction under microwave irradiation in heterogeneous phases and using ammonium ceric nitrate as initiators.The optimal synthesis conditions were as following ：by 0.12 mL ammonium ceric nitrate as initiators, then reacting for 3 min under microwave with 75% of monomer neutralization degree and 5 ： 1 of proportion of monomer volume to sodium lignosulphonate weight. The concentration of CWS had reached 65% using synthesized production.