CAJ | 학술논문

本文研究了碳酸钾在膨润土层间与硫酸反应生成硫酸钾层间结晶,实验得出其最佳工艺条件为:一次水浴温度80 ℃,搅拌速度1.5 m/s,搅拌时间30 min,矿浆浓度为20 g膨润土溶于100 mL蒸馏水中;分段水浴温度70～70 ℃,分段搅拌速度0.5～2.0 m/s.正交试验与单因素实验结果吻合,其因素影响顺序为:搅拌速度>矿浆浓度>水浴温度>搅拌时间.其最大层间结晶达到4.2 g.从SEM、EDS图片显示硫酸钾成功结晶于膨润土层空间,没出现包裹现象,使对硫酸钾的固定与缓释有更深一步的认识.
본문연구료탄산갑재팽윤토층간여류산반응생성류산갑층간결정,실험득출기최가공예조건위:일차수욕온도80 ℃,교반속도1.5 m/s,교반시간30 min,광장농도위20 g팽윤토용우100 mL증류수중;분단수욕온도70～70 ℃,분단교반속도0.5～2.0 m/s.정교시험여단인소실험결과문합,기인소영향순서위:교반속도>광장농도>수욕온도>교반시간.기최대층간결정체도4.2 g.종SEM、EDS도편현시류산갑성공결정우팽윤토층공간,몰출현포과현상,사대류산갑적고정여완석유경심일보적인식.
This paper studied on the reaction between sulfuric acid and potassium carbonate in the bentonite layer to potassium sulfate for crystalline in the layer. The optimum experimental conditions were as follows:water bath temperature is 80 ℃,stirring speed is 1.5 m/s, stirring time is 30 min, concentration is 20 g bentonite slurry dissolved in distilled water whose volume is 100 mL; sub-water bath temperature is 70-70 ℃, sub-stirring speed is 0.5-2.0 m/s.The results of single factor experiments and orthogonal experimental are anastomosis. Order of its factors: stirring speed> pulp concentration > water temperature> stirring time. Its best crystallization of layers achieve is 4.2 g. The SEM, EDS picture shows the success of the crystallization of potassium sulfate in the bentonite layer space. The phenomenon of package isn' t appear,so it's a better understanding for releasing of fixed potassium.