【摘要】 超细氢氧化镁浆料的过滤性能一直是制约氢氧化镁生产的关键问题。本文通过利用聚丙烯酰胺对超细氢氧化镁浆料进行絮凝的方法来提高氢氧化镁浆料的过滤性能,并考察了絮凝处理对氢氧化镁浆料洗涤性能的影响。研究结果表明:在超细氢氧化镁浆料中加入特性粘度为14.67 dL/g的聚丙烯酰胺溶液可以明显改善浆料的过滤性能,其最佳加入量为氢氧化镁浆料体积的0.25%,同时还可以提高氢氧化镁浆料洗涤去除钠离子的效果。更多还原

【Abstract】 The filtration property of Mg(OH) 2 slurry is the most difficult problem in the production of super-fine magnesium hydroxide powder.In this paper,in order to improve the filtration property of Mg(OH) 2 slurry, the flocculation with polyacrylamide was researched,and the effect of flocculation treatment on the washing property was tested also.The results indicated that the filtration property of Mg(OH) 2 slurry could be improved obviously by adding polyacrylamide solution with a characteristic viscosity of 14.67dL/g into it,and the best dosage of polyacrylamide was 0.25%(V/V%).The flocculation of the super-fine magnesium hydroxide slurry was benefit for the removal of Na + in the washing operation.更多还原