氨基磺酸系高效水煤浆添加剂合成与性能研究

Synthesis and properties of aminosulfonic high-efficiency coal water slurry additive

为提高水煤浆添加剂的分散性,降低加入比例,针对神府煤表面性质和结构特点,以对氨基苯磺酸钠、苯酚、甲醛为主要原料进行了三元共缩聚反应研究,探讨了不同合成条件对产物成浆性能的影响,成功合成氨基磺酸系高效水煤浆添加剂。结果表明,最佳合成条件为苯酚、对氨基苯磺酸钠摩尔比为1.8∶1,甲醛、对氨基苯磺酸钠+苯酚摩尔比为1.4∶1,反应体系p H值为9,反应温度为85℃,反应时间为5 h,添加剂加入比例为0.15%时,即可制得浓度为64%的神府煤气化水煤浆。

In order to improve dispersion of coal water slurry additives,reduce additive amount,amino sulfonic acid series of high efficiency water coal slurry additives was successfully synthesized by copolymerization of three monomers which were sodium p-aminobenzenesulfonate,phenol and formaldehyde according to the surface properties and structure characteristics of Shenfu coal. The effects of different synthesis conditions on the properties of product were studied. The optimum conditions were that n（ phenol） ： n（ sodiump-aminobenzenesulfonate） was 1. 8 ∶ 1,n（ methanal） ： n（ phenol＋sodium p-aminobenzenesulfonate） was 1. 4 ∶ 1,the reaction system p H value was 9,the reaction temperature was 85 ℃,the reaction time was 5 h. When the additive ratio was 0. 15%,the Shenfu coal water slurry for gasification with a concentration of 64% was obtained.