分选砂矿中所含的各种矿物,常用先重选,随后混合精矿用磁选、电选或者浮选方法精选的选别流程。印度海滨砂矿是最大的砂矿矿床之一。该矿床沿着印度洋沿岸的西南向南延伸到科摩林角,长达160公里。该矿床的主要采区是喀拉拉和马德拉斯(Magpac)。在喀拉拉地区,过去由于季候风引起空气湿度增大,导致各种矿物的分选效率和磁选、电选的生产能力急剧下降。 Separation of various minerals contained in the sand, commonly used first re-election, followed by mixed-use magnetic separation, electrowinning or flotation selection method of sorting process. Indian seashore placer is one of the largest placer deposits. The deposit extends southwest along the Indian Ocean coast to Kanyakumari, about 160 km in length. The main mining area of ​​the deposit is Kerala and Magpac. In the Kerala region, the past, due to the monsoon-induced air humidity, led to a sharp decline in the sorting efficiency and magnetic separation of various minerals, and in the production of electricity.