公开(公告)号：US10130956B2

公开(公告)日：2018-11-20

申请号：US14256042

申请日：2014-04-18

Applicant: Cytec Technology Corp.

Inventor： Devarayasamudram Ramachandran Nagaraj ,  Tarun Bhambhani ,  Mukund Vasudevan ,  Puspendu Deo ,  Haunn-Lin Tony Chen

IPC: B03D1/02 ,  B03D1/016 ,  C01G53/11 ,  C22B3/00 ,  C22B3/12 ,  C22B3/14 ,  C22B3/16 ,  C22B3/24 ,  C22B15/00 ,  C22B34/34 ,  B03D1/008 ,  B03D1/01 ,  B03D1/012 ,  B03D1/014

Abstract: Methods of enhancing recovery of value sulfide and/or precious-metal minerals from an ore containing said minerals and a Mg-silicate, slime forming mineral, and/or clay, and which is subjected to a froth flotation process, by adding to one or more stage of the froth flotation process a froth phase modifier having a polymer containing one or more functional groups, and optionally a monovalent ion modifier enhancing agent, thereby enhancing recovery of a value sulfide mineral and/or a precious metal-bearing mineral.

公开(公告)号：US11007538B2

公开(公告)日：2021-05-18

申请号：US15165351

申请日：2016-05-26

Applicant: Cytec Technology Corp.

Inventor： Devarayasamudram Ramachandran Nagaraj ,  Tarun Bhambhani ,  Mukund Vasudevan ,  Puspendu Deo ,  Haunn-Lin Tony Chen

IPC: B03D1/016 ,  B03D1/02 ,  B03D1/06 ,  C01G53/11 ,  C22B3/00 ,  C22B3/12 ,  C22B3/14 ,  C22B3/16 ,  C22B3/24 ,  C22B15/00 ,  C22B34/34 ,  B03D1/008 ,  B03D1/01 ,  B03D1/012 ,  B03D1/014

Abstract: Methods of enhancing recovery of value sulfide and/or precious metal-bearing minerals from an ore containing such minerals as well as Mg-silicate, slime forming minerals, and/or clay by adding a froth phase modifier agent to the ore, and subjecting the ore to a froth flotation process performed under acidic conditions, are provided herein.

公开(公告)号：US08703088B2

公开(公告)日：2014-04-22

申请号：US13953107

申请日：2013-07-29

Applicant: Cytec Technology Corp.

Inventor： Morris Lewellyn ,  Alan S. Rothenberg ,  Haunn-Lin Tony Chen ,  Lino G. Magliocco ,  Thomas P. Sassi

IPC: C01B21/20 ,  C02F1/68 ,  C01B21/14 ,  C01B21/16 ,  C02F1/00 ,  B03D1/001 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14

CPC classification number: C01B21/1481 ,  C01B21/14 ,  C01B21/1472 ,  C01B21/16 ,  C01F7/0653 ,  C02F1/68 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C08F8/32 ,  C08F120/56

Abstract: The present invention relates to processes for reducing or eliminating the amount of hydrazine from a hydroxylamine-free base containing hydrazine by treating said hydroxylamine-free base with a scavenger agent, and to the hydroxylamine-free base thereby obtained, as well as to its use for producing microdispersions containing a hydroxamated polymer for use as a flocculant in the Bayer process.

Abstract translation: 本发明涉及通过用清除剂处理所述不含羟胺的碱和由此获得的不含羟胺的碱来还原或除去含有羟基胺的肼的肼的方法及其用途 用于生产含有用于拜耳法中絮凝剂的异羟肟酸聚合物的微分散体。