Iron ore beneficiation by selective flocculation
    5.
    发明授权
    Iron ore beneficiation by selective flocculation 失效
    铁矿选矿选矿絮凝

    公开(公告)号:US4274945A

    公开(公告)日:1981-06-23

    申请号:US92002

    申请日:1979-11-07

    IPC分类号: B03D3/06 C02F1/54 B03B1/04

    CPC分类号: B03D3/06 C02F1/54

    摘要: Selective flocculation of iron ores is accomplished through the employment of partially carboxylated polyacrylamides as the selective flocculant. The partially carboxylated polyacrylamides employed in the selective flocculation contain from about 20-65% carboxyl groups and are of a molecular weight in excess of one million. The selective flocculation process performs a separation of iron ores predominantly containing semitaconite, oxidized taconite and hematitic-goethitic jaspers from their associated siliceous gangue.

    摘要翻译: 铁矿石的选择性絮凝是通过使用部分羧化的聚丙烯酰胺作为选择性絮凝剂来实现的。 在选择性絮凝中使用的部分羧化的聚丙烯酰胺含有约20-65%的羧基,分子量超过一百万。 选择性絮凝过程主要从其相关的硅质ang石中分离出铁矿石,其主要含有半石灰,氧化铁白石和血细胞 - 羟乙基堇青石。

    Selective flocculation for iron values
    10.
    发明授权
    Selective flocculation for iron values 失效
    铁价选择性絮凝

    公开(公告)号:US4282087A

    公开(公告)日:1981-08-04

    申请号:US41031

    申请日:1979-05-21

    IPC分类号: B03D1/016 B03D3/06

    摘要: An iron ore is finely ground and slurried prior to being subjected to treatment with a selective flocculant for iron values. Subsequent to treatment, the iron values are allowed to settle into the underflow concentrate and be recovered. The selective flocculant employed is a hydroxymethylated polyacrylamide having a high molecular weight and a degree of hydroxymethylation in excess of about 50%.

    摘要翻译: 铁矿石在被用铁选择性选择性絮凝剂处理之前,经过细磨和浆化。 在处理之后,允许铁值沉降到底流浓缩物中并回收。 使用的选择性絮凝剂是具有高分子量和羟甲基化程度超过约50%的羟甲基化聚丙烯酰胺。