华南农业大学学报
華南農業大學學報
화남농업대학학보
JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY
2015年
1期
60-64
,共5页
毛敬麟%刘可星%何慧中%郭小雪%廖宗文
毛敬麟%劉可星%何慧中%郭小雪%廖宗文
모경린%류가성%하혜중%곽소설%료종문
富钾页岩%钾长石%活化剂%X衍射
富鉀頁巖%鉀長石%活化劑%X衍射
부갑혈암%갑장석%활화제%X연사
potassium-rich shale%potassium feldspar%activated agent%X-ray diffraction
目的综合利用我国丰富的非水溶性钾矿,以缓解我国钾肥市场“供-需”矛盾.方法通过水浸提和盆栽试验,比较了活化剂QN对富钾页岩和钾长石的活化效果,并通过X衍射分析活化剂QN对富钾页岩和钾长石的作用机理.结果和结论水浸提试验结果表明,在QN比例0.1%~10.0%范围内,富钾页岩、钾长石的活化效果不同,随QN比例的增加,活化页岩的水溶性钾释放量先增加后下降,1.0%QN活化页岩的水溶性钾累积量最高;活化钾长石的水溶性钾含量则随QN比例的增加而增加,QN比例为10.0%时的水溶性钾累积量最高.盆栽结果表明,活化页岩的玉米生物量显著高于富钾页岩,而与氯化钾的生物量相当;活化钾长石处理的玉米生物量与钾长石处理差异不显著,且显著低于氯化钾活化页岩处理.X衍射结果分析表明,QN活化富钾页岩和钾长石的作用机理是Na+与K+间的交换反应,活化页岩中新增的钠盐有K0.96 Na0.04 AlSi3 O8、Na4 Al2 Si6 O17·2H2 O和Na6 PbO4,活化钾长石中新增的钠盐为Na3 Mn( PO4)( CO3).
目的綜閤利用我國豐富的非水溶性鉀礦,以緩解我國鉀肥市場“供-需”矛盾.方法通過水浸提和盆栽試驗,比較瞭活化劑QN對富鉀頁巖和鉀長石的活化效果,併通過X衍射分析活化劑QN對富鉀頁巖和鉀長石的作用機理.結果和結論水浸提試驗結果錶明,在QN比例0.1%~10.0%範圍內,富鉀頁巖、鉀長石的活化效果不同,隨QN比例的增加,活化頁巖的水溶性鉀釋放量先增加後下降,1.0%QN活化頁巖的水溶性鉀纍積量最高;活化鉀長石的水溶性鉀含量則隨QN比例的增加而增加,QN比例為10.0%時的水溶性鉀纍積量最高.盆栽結果錶明,活化頁巖的玉米生物量顯著高于富鉀頁巖,而與氯化鉀的生物量相噹;活化鉀長石處理的玉米生物量與鉀長石處理差異不顯著,且顯著低于氯化鉀活化頁巖處理.X衍射結果分析錶明,QN活化富鉀頁巖和鉀長石的作用機理是Na+與K+間的交換反應,活化頁巖中新增的鈉鹽有K0.96 Na0.04 AlSi3 O8、Na4 Al2 Si6 O17·2H2 O和Na6 PbO4,活化鉀長石中新增的鈉鹽為Na3 Mn( PO4)( CO3).
목적종합이용아국봉부적비수용성갑광,이완해아국갑비시장“공-수”모순.방법통과수침제화분재시험,비교료활화제QN대부갑혈암화갑장석적활화효과,병통과X연사분석활화제QN대부갑혈암화갑장석적작용궤리.결과화결론수침제시험결과표명,재QN비례0.1%~10.0%범위내,부갑혈암、갑장석적활화효과불동,수QN비례적증가,활화혈암적수용성갑석방량선증가후하강,1.0%QN활화혈암적수용성갑루적량최고;활화갑장석적수용성갑함량칙수QN비례적증가이증가,QN비례위10.0%시적수용성갑루적량최고.분재결과표명,활화혈암적옥미생물량현저고우부갑혈암,이여록화갑적생물량상당;활화갑장석처리적옥미생물량여갑장석처리차이불현저,차현저저우록화갑활화혈암처리.X연사결과분석표명,QN활화부갑혈암화갑장석적작용궤리시Na+여K+간적교환반응,활화혈암중신증적납염유K0.96 Na0.04 AlSi3 O8、Na4 Al2 Si6 O17·2H2 O화Na6 PbO4,활화갑장석중신증적납염위Na3 Mn( PO4)( CO3).
Objective] Comprehensive utilization of water-insoluble potassium resources is helpful to re-lieve the contradiction between supply and demand of potash market .[Method] The activated effects and fertilizer effects were studied by water extraction experiment and pot trial .The mechanism of activation was discussed by X-ray diffraction (XRD).[Result and conclusion] The results of water extraction ex-periment indicated that , within the QN ratio of 0.1%-10.0%, potassium-rich shale and potassium feld-spar had different activated effects .With the increase of QN ratio , the water-soluble K extraction from potassium-rich shale increased and then decreased , and the activated ratio of 1.0%was the best .For po-tassium feldspar , the water-soluble K accumulative amount increased as the ratio of QN increased , and when the QN ratio was 10.0%, the accumulation of water-soluble K was the highest .The pot trail results showed that the pot biomass of activated K-shale was 49.42%higher than that of K-shale, reaching the potassium chloride level .For activated K-feldspar , the corn biomass was not significantly different from K-feldspar , which was lower than that of K-chloride and activated K-shale .The results of XRD analysis indicated that , the mechanism of QN activated potassium-rich shale and potassium feldspar was an ion ex-change reaction between Na + and K+.Some new sodium minerals can be found in activated K-shale andactivated K-feldspar.In activated K-shale, the new sodium minerals include K0.96 Na0.04 AlSi3 O8 ,Na4 Al2 Si6 O17·2H2 O and Na6 PbO4 , but it is Na3 Mn(PO4 )(CO3 ) in activated K-feldspar.