Process for recovery of phosphate ore
    1.
    发明授权
    Process for recovery of phosphate ore 失效
    磷矿矿石回收工艺

    公开(公告)号:US4511463A

    公开(公告)日:1985-04-16

    申请号:US965394

    申请日:1978-12-01

    IPC分类号: B03D1/008 B03D1/02 B03D1/14

    摘要: Phosphate ore is concentrated by flotation in the presence of a half-ester of an organic dicarboxylic acid, such as maleic acid, with a saturated aliphatic alcohol containing at least 11 carbon atoms. Water and oil also are present. The half-ester may be partly neutralized, e.g. with caustic soda, in an amount at most sufficient to raise the pH to 7.0.

    摘要翻译: 存在有机二羧酸(如马来酸)的半酯与含有至少11个碳原子的饱和脂族醇的情况下,通过浮选浓缩磷酸盐矿石。 水和油也存在。 半酯可以部分中和,例如, 用苛性钠,其量至多足以使pH升至7.0。