公开(公告)号：US20230091787A1

公开(公告)日：2023-03-23

申请号：US17470795

申请日：2021-09-09

申请人： Clariant International, Ltd.

发明人： Dirk LEINWEBER ,  Adriana GROSSMANN ,  Wagner Claudio DA SILVA ,  Leandro Seixas BICALHO

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.-%.

公开(公告)号：US20210252525A1

公开(公告)日：2021-08-19

申请号：US16973010

申请日：2019-06-05

申请人： Clariant International Ltd.

发明人： Matthias KRULL ,  Wagner Claudio DA SILVA ,  Valdilene RHODES ,  Leandro Seixas BICALHO

IPC分类号： B03D1/004 ,  C01G49/08 ,  C01G49/06 ,  B03D1/008 ,  B03D1/01

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.