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一、选金工艺发展趋势随着工业发展和科学进步选金技术也不断地发展,从简单的手选逐步发展到重选、浮选以及氰化浸出、炭吸附和离子交换等多种工艺,形成一门比较成熟的专门技术.浮选法又是选金厂处理脉金矿石常用的方法之一,尤其是处理含金银、金锑、铜、铅、锌和金铀等复杂硫化矿石时更为普及.金一般多与重金属硫化物组成为不均匀嵌布或呈微细粒分散状态的复杂矿石,因而,不同的矿石性质和矿物组成需采用不同的选矿方法.南非、苏联、加拿大和美国的金矿80～90%采用两段或三段选别流程,我国大部分选金厂也多采用两段选别流程.由此可见,阶段选别、综合回收和联合流程是目前黄金选矿工艺的发展趋势.
First, the gold process development trend With the industrial development and scientific progress gold technology also continue to develop, from hand-selected gradually developed to re-election, flotation and cyanide leaching, carbon adsorption and ion exchange and other technology, Forming a more mature expertise.Flotation method is another gold metallurgy vein gold ore processing methods commonly used, especially in the treatment of gold and silver, gold antimony, copper, lead, zinc and uranium and other complex sulfide ore More common.General gold and heavy metal sulfide composed of inhomogeneous or finely dispersed particles dispersed state of the ore, therefore, different ore properties and mineral composition need to use different beneficiation methods.South Africa, the Soviet Union, Canada and the United States Of the gold 80 to 90% using two or three paragraphs sorting process, most of China’s gold mills also use more than two sorting process.Thus, the stage sorting, comprehensive recovery and the joint process is the current gold beneficiation process The trend of development.