CAJ | 학술논문

以钠基膨润土为原料，通过添加铝盐为改性剂，制备出了一种新型高效绿液除硅剂，其硅吸附效率最高可达90％左右。并以竹浆绿液的硅吸附率和p H变化为标准，研究了该种改性膨润土的制备工艺。其最佳工艺条件为：钠基膨润土与铝盐的质量比为1∶4；添加顺序先将钠基膨润土与水混合，再加入铝盐，加水量为66mL/1g钠基膨润土；搅拌时间为2h，搅拌速率为1200 r/min ；反应温度为室温，静置分离12 h ，105℃干燥，研磨，过200目筛。
이납기팽윤토위원료，통과첨가려염위개성제，제비출료일충신형고효록액제규제，기규흡부효솔최고가체90％좌우。병이죽장록액적규흡부솔화p H변화위표준，연구료해충개성팽윤토적제비공예。기최가공예조건위：납기팽윤토여려염적질량비위1∶4；첨가순서선장납기팽윤토여수혼합，재가입려염，가수량위66mL/1g납기팽윤토；교반시간위2h，교반속솔위1200 r/min ；반응온도위실온，정치분리12 h ，105℃간조，연마，과200목사。
A novel and efficient silicate removal adsorbent was prepared from Na-bentonite and the aluminum salt used as the modified agent .The adsorption rate of aluminum salt modified bentonite could reach at about 90% .T he preparation process of modified bentonite was explored as the standard of the adsorption and change rate in green liquor .The optimum conditions were that mass ratio between Na-bentonite and aluminum salt was 1∶4;the order of adding raw materials was that Na-bentonite was mixed with water at first ,then ,aluminum salt was added;the water addition was 66 mL/1 g of Na-bentonite;stirring time was 2 h;stir-ring speed was 1 200 r/min ;reaction temperature was at room temperature ;separate time was 12 h;dried at 105 ℃ and screened through 200 mesh .