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AssigneeGeorgia-Pacific Resins, Inc.
InventorsJames Wright, Phillip Hurd, Peter Boyer, Lisa Arthur, Jeffrey Mills, Paul Hart, Richard Rediger, Robbie Kelly
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Modified resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These modified resins are especially useful as froth flotation depressants in the beneficiation of many types of materials (e.g., mineral and metal ores), including the beneficiation of impure coal comprising clay impurities, as well as in the separation of valuable bitumen from solid contaminants such as sand. The modified resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water. The modified resins comprise a base resin that is modified with a coupling agent, which is highly selective for binding to solid contaminants and especially siliceous materials such as sand or clay.
A method for purifying clay from a clay-containing ore comprising one or more impurities selected from the group consisting of metals, metal oxides, and minerals, the method comprising:
A method for purifying bitumen from a bitumen-containing slurry comprising sand or clay, the method comprising:
A method for purifying an aqueous liquid suspension comprising a solid contaminant, the method comprising:
A method for purifying water comprising a metallic cation, the method comprising:
A method for beneficiation of an ore, the method comprising treating a slurry of said ore with a depressant comprising a modified base resin, wherein a base resin comprising a reaction product of a primary or a secondary amine and an aldehyde is modified with a coupling agent.
A froth flotation depressant for beneficiation of value mineral or value metal ores, said depressant comprising a modified base resin, wherein a base resin comprising a reaction product of a primary or a secondary amine and an aldehyde is modified with a coupling agent.
Dependencies are inferred from the claim text.