METHOD FOR ENRICHMENT OF LITHIUM FROM LITHIUM CLAY ORE

    公开(公告)号:EP4349489A1

    公开(公告)日:2024-04-10

    申请号:EP22871040.6

    申请日:2022-09-22

    摘要: The present invention discloses a method for enriching lithium from a lithium clay and relates to the technical field of resources comprehensive utilization. The method of the present invention comprises the following steps: (1) the raw ore were crushed to produce fine particles; (2) performing rougher on the fine particles by adding ferric sulfate or ferric nitrate, sodium oleate, and cocoamine to obtain rough concentrate and rough tailing; (3) finely separating the rough concentrate to obtain the first part of concentrate; (4) re-grinding the rough tailing by ball mill; (5) performing rougher on the reground tailing to obtain reground rough concentrate and re-ground rough tailing; (6) performing cleaner on the reground rough concentrate to obtain the second part of concentrate; and (7) performing scavenger on the reground rough tailing to obtain the cleaned tailing. The lithium in the concentrate obtained by the method of the present invention is of high grade and relatively high recovery.

    DIFFERENTIAL FLOTATION OF SULFIDE ORES FOR RECOVERING REFRACTORY GOLD

    公开(公告)号:EP3362184A1

    公开(公告)日:2018-08-22

    申请号:EP16794367.9

    申请日:2016-10-12

    摘要: A process for recovery of gold from gold-containing raw materials includes obtaining gold-containing raw material having refractory gold-containing sulfidic minerals including a first type of refractory sulfidic mineral having high gold content and a second type of sulfidic mineral having low gold content; forming a mineral pulp including a first type of refractory sulfidic mineral particles having high gold content and second type of sulfidic mineral particles having low gold content by suspending ground gold-containing material in water and optionally further milling the material; conditioning the mineral pulp by addition of a surface modifying chemical to obtain a conditioned pulp; subjecting the conditioned pulp to a froth flotation process; recovering the non-floatable first type of refractory sulfidic mineral particles having high cold content as flotation tailings; pressure oxidizing (PDX) the flotation tailings to obtain a discharge slurry comprising liberated gold; and recovering gold from the discharge slurry.

    SEPARATION OF COOPER MINERALS FROM PYRITE USING AIR-METABISULFITE TREATMENT
    5.
    发明公开
    SEPARATION OF COOPER MINERALS FROM PYRITE USING AIR-METABISULFITE TREATMENT 审中-公开
    AUSSCHEIDUNG VON KUPFERMINERALIEN AUS PYRIT DURCH LUFT-METABISULFIT-BEARBEITUNG

    公开(公告)号:EP2506979A4

    公开(公告)日:2014-07-09

    申请号:EP10834290

    申请日:2010-12-03

    申请人: BARRICK GOLD CORP

    发明人: GORAIN BARUN

    摘要: The present invention relates to flotation of sulfidic copper- molybdenum- and gold-containing minerals. More specifically, the invention relates to sulfoxy reagent-assisted flotation for separating of sulfides of copper, molybdenum and gold from pyrite, marcasite, pyrrhotite, arsenopyrite, and other gangue minerals following aerating by an oxidizing gas and contacting by a sulfoxy reagent. To promote collection and flotation the feed mineral materials are preferably not contacted with an externally generated non-oxidizing gas to lower the dissolved molecular oxygen content prior to flotation.

    摘要翻译: 本发明涉及硫化铜 - 钼和含金矿物的浮选。 更具体地,本发明涉及用氧化气体充气并通过磺氧基试剂接触之后从黄铁矿,马赛克,磁黄铁矿,砷黄铁矿和其他脉石矿物中分离铜,钼和金的硫化物的磺氧基试剂辅助浮选。 为了促进收集和浮选,饲料矿物材料优选不与外部产生的非氧化性气体接触,以在浮选之前降低溶解的分子氧含量。