碾磨时间和速度对高岭石为物理型缓控释肥料KH2PO4养分有效性的影响

IF 0.4 Q4 CHEMISTRY, MULTIDISCIPLINARY Jordan Journal of Chemistry Pub Date : 2020-01-01 DOI:10.47014/15.2.1
A. Al-Rawajfeh, Mohammad Alrbaihat, E. AlShamaileh
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引用次数: 5

摘要

以高岭石为粘土矿料,以(KDP) KH2PO4为原料,以3:1的重量比,在行星球磨机中,以200 ~ 700转/分的磨粉转速和600转/分的不同磨粉时间分别磨2 h和1 ~ 3 h,采用机械化学处理法制备出缓释肥料。采用傅里叶变换红外光谱(FTIR)、x射线衍射(XRD)、热重分析(TGA)和耦合离子色谱(IC)对制备的样品进行了表征。结果表明,机械化学过程成功地将KDP融入到高岭石结构中。测定了高岭石- kh2po4体系在蒸馏水中分散24 h后释放的K+和PO43-离子。结果表明,制备的高岭石- kh2po4体系作为钾+和PO43-养分的载体,可作为缓释肥料
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Effects of Milling Time and Speed on Nutrient Availability of KH2PO4 with Kaolinite as Physical Type Slow/Controlled Release Fertilizers
Mechanochemical processing was applied to produce slow-release fertilizers consisting of kaolinite as clay material and (KDP) KH2PO4 in 3:1 weight ratio by grinding the contents in a planetary ball mill at milling rotational speeds ranging from 200 to 700 rpm for 2 h and at different milling times ranging between 1-3 h at 600 rpm milling speed. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and coupled ion chromatography (IC) were used to characterize the prepared samples. It was shown that the mechanochemical process succeeded to incorporate KDP into the kaolinite structure. The K+ and PO43- ions released from the kaolinite–KH2PO4 system when dispersed in distilled water for 24 h were measured. The results indicate that the prepared kaolinite–KH2PO4 system acts as a carrier of K+ and PO43- nutrients to be used as slow-released fertilizers
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来源期刊
Jordan Journal of Chemistry
Jordan Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
0.50
自引率
0.00%
发文量
7
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