公开(公告)号：US20170368480A1

公开(公告)日：2017-12-28

申请号：US15538446

申请日：2015-12-18

Applicant: KEMIRA OYJ

Inventor： Lucas Moore ,  Xihui Yin ,  Jean Robert Durand ,  Marcelo Moreira da Costa

IPC: B01D21/01 ,  C08L33/02 ,  C08F220/56 ,  C08L33/26 ,  B03D3/06

CPC classification number: B01D21/01 ,  B03D3/06 ,  C08F220/56 ,  C08L33/02 ,  C08L33/26 ,  C08F220/20 ,  C08F220/06

Abstract: Selective flocculants comprise a polymer comprising recurring units of one or more acrylamide monomers; recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate, allyloxyalkyldiol, allyloxyethanol, trimethylolpropane allyl ether, and 2-hydroxy ethyl acrylate; and optionally, recurring units of one or more acrylic acid monomers. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a selective flocculation process in the presence of one or more of the selective flocculants.

公开(公告)号：US20180071752A1

公开(公告)日：2018-03-15

申请号：US15538471

申请日：2015-12-18

Applicant: KEMIRA OYJ

Inventor： Lucas Moore ,  Xihui Yin ,  Jean Robert Durand

IPC: B03D1/016 ,  B03D1/008 ,  B03D1/01

CPC classification number: B03D1/016 ,  B03D1/008 ,  B03D1/01 ,  B03D2201/06 ,  B03D2203/02

Abstract: Depressants comprising a polymer comprising: a) recurring units of one or more acrylamide monomers; b) recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate, allyloxyalkyldiol, allyloxyethanol, trimethylolpropane allyl ether, and 2-hydroxy ethyl acrylate; and optionally, c) recurring units of one or more acrylic acid monomers are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more of the depressants.

公开(公告)号：US20160304366A1

公开(公告)日：2016-10-20

申请号：US15102097

申请日：2014-12-17

Applicant: Kemira Oyj

Inventor： Lucas Ryan Moore ,  Jean Robert Durand

IPC: C02F1/56

CPC classification number: C02F1/56 ,  C02F2101/006 ,  C02F2101/101 ,  C02F2101/103 ,  C02F2101/106 ,  C02F2101/16 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/206 ,  C02F2101/22

Abstract: Methods for removing one or more contaminants from an aqueous stream comprising: adding a polymer comprising recurring units of one or more acrylamide monomers and recurring units of one or more monomers selected from hydroxyalkyl-methacrylates and allyloxyalkyldiols to the aqueous stream to form solidified contaminants; and separating the solidified contaminants from the aqueous stream are provided. The methods may be used for removing contaminants including zinc-, copper-, barium-, aluminum-, manganese-, cobalt-, and iron-based contaminants.

Abstract translation: 从水流中除去一种或多种污染物的方法，包括：将含有一种或多种丙烯酰胺单体的重复单元的聚合物和一种或多种选自羟烷基 - 甲基丙烯酸羟烷基酯和烯丙氧基烷基二醇的单体的重复单元加入到水流中以形成固化的污染物; 并提供固化的污染物与水流分离。 该方法可用于去除污染物，包括锌，铜，钡，铝，锰，钴和铁基污染物。