利用不溶性钾矿生产钾镁肥  

Production of Potassicmagnesium Fertilizer by Use of Insoluble Potassic Mineral

作　　者：陈廷臻 米清海 杨哲 路振岭[1,2,3,4] 许秀成 

机构地区：[1]河南省地质科研所 [2]河南方城县磷肥厂 [3]河南省化工厅 [4]郑州工业大学

出　　处：《磷肥与复肥》1999年第2期44-45,共2页Phosphate & Compound Fertilizer

摘　　要：不溶性钾矿含钾砂岩、钾长石等，采用熔融热化学转化法，加入特制的转化剂，使钾矿石中的结构钾（无效钾）变成可被植物吸收的有效钾，从而形成一种含有效钾、镁、铁、硅、硫等多种元素的无机螯合态肥料，ｗ（Ｋ２Ｏ）８％～１０％、ｗ（ＭｇＯ）１０％左右，钾的转化率可达９５％以上。钾镁肥经连续４年的农田试验和示范，可使农作物增产１０％～３０％；特别对烟草、水果、蔬菜有明显效果。By means of melt thermal chemical transformation, adding special transformative agent, the inavailable potash in potassic mineral can be changed into available potash which can be absorbed by plants, and the inorganic chelated fertilizer containing available potassium, magnesium, iron, silicon, sulphur etc can be obtained, in which w (K 2O) is 8%￣10%, w (MgO) is 10% and the transformative rate of potash can be over 95%. Field experiments on potashmagnesium fertilizer for continuously 4 years showed that potasicmagnesium fertilizer can raise the crop yield by 10%￣20%,especially for tobacco , fruit and vegetable.

关 键 词：不溶性 钾矿 钾镁肥 熔融转化法 混合肥料 

分 类 号：TQ444.4[化学工程—化学肥料工业]