钾长石-NaOH体系水热法提钾工艺研究  

Study on extracting potassium from potassium feldspar-NaOH system by hydrothermal method

作　　者：王忠兵[1] 程常占[1] 王广志[1] 韩效钊[1] 陆亚玲[1] 陈敏[1] 

机构地区：[1]合肥工业大学化学工程学院,安徽合肥230009

出　　处：《化工矿物与加工》2010年第5期6-7,20,共3页Industrial Minerals & Processing

基　　金：国家农业科技成果转化资金(2008KJNZ0447)

摘　　要：在水热条件下建立钾长石-NaOH反应体系,全面探讨影响该体系钾溶出率的各种因素。试验表明,在最优条件下钾的溶出率可高达90%以上。原矿和滤渣的XRD物相分析表明,NaOH添加剂破坏了钾长石的晶体结构,并形成了新物相。Under hydrothermal conditions, potash feldspar-NaOH reaction system was established. Different kinds of factors affecting on extracting rate of potassium in the system were explored. Experimental results showed that the extracting rate of potassium could be as high as 90 % under the optimal conditions. Raw ore and filter residues were characterized by using XRD, the results showed that NaOH additive destroyed the crystal structure of potash feldspar, and a new phase was formed at the same time.

关 键 词：钾长石 水热法 NAOH 提钾 

分 类 号：TQ443.5[化学工程—化学肥料工业]