| abstract |
Modified resins are disclosed for removing various types of solid and / or ionic species from the liquid that are dissolved and / or suspended in the liquid. This modified resin is used for beneficiation of various types of materials (eg mineral and metal ore), including the separation of bitumen, an economic mineral, from solid impurities such as sand, and the beneficiation of crude coal containing clay impurities. It is particularly useful as a float flotation depressant. The modified resins are also useful for removing solid particles from aqueous suspensions as well as removing metal ions upon purification of water. The modified resin comprises a base resin modified with a coupling agent, which base resin combines with high selectivity with solid impurities, in particular siliceous materials such as sand or clay. |