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公开(公告)号：US20230091787A1
公开(公告)日：2023-03-23
申请号：US17470795
申请日：2021-09-09
IPC分类号： B03D1/01 , C07D207/277 , B03D1/008
摘要： The invention relates to a flotation agent for lithium or phosphate ore, comprising at least one fatty acid and at least one 1-alkyl-5-oxopyrrolidine-3-carboxylic acid or 1-alkenyl-5-oxopyrrolidine-3-carboxylic acid or a mixture thereof of the formula (1) wherein R is a C7 to C21 alkyl or alkenyl group, wherein the amount of fatty acid is from 70 to 99 wt.-%, and wherein the amount of the 1-alkyl-5-oxopyrrolidine-3-carboxylic acid or 1-alkenyl-5-oxopyrrolidine-3-carboxylic acid of the formula (I) is from 1 to 30 wt.-%.
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公开(公告)号：US20210252525A1
公开(公告)日：2021-08-19
申请号：US16973010
申请日：2019-06-05
摘要： This invention relates to use of a water-miscible polyhydric alcohol having two or three hydroxyl groups for improving the collector performance of a collector composition for the reverse iron ore flotation comprising at least one alkyl ether amine of formula (I) and/or alkyl ether diamine of formula (II) R1—(O-A)-NH2 (I) R2—(O-A)-NH—R3—NH2 (II) wherein R1 is a hydrocarbyl group with 6 to 24 carbon atoms, R2 is a hydrocarbyl group with 6 to 24 carbon atoms, R3 is an aliphatic hydrocarbyl group with 2 to 4 carbon atoms A is an alkylene group with 2 to 6 carbon atoms.
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公开(公告)号：US20230302464A1
公开(公告)日：2023-09-28
申请号：US17704116
申请日：2022-03-25
发明人： Adriana Grossmann , Tobias PLATEN , Klaus RAAB , Claudio Wagner DA SILVA , Leandro Seixas BICALHO , Pedro Martins de Almeida ROLLO
CPC分类号： B03D1/021 , B03D1/01 , B03D2201/02 , B03D2203/06
摘要： A process or use of at least one hydroxyl ether diamine for improving a process for froth flotation of silicates. Compared to the benchmark ether monoamines, ether diamines or mixtures thereof, the selectivity performance of the hydroxyl ether diamines is significantly better, delivering higher recoveries for the mineral of interest.
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