公开(公告)号：US11155478B2

公开(公告)日：2021-10-26

申请号：US15648891

申请日：2017-07-13

Applicant: Ecolab USA Inc.

Inventor： Christopher Ryan Greulich ,  Kevin McDonald ,  Weiguo Cheng

IPC: C02F1/56 ,  C08F220/06 ,  C08F220/56 ,  C10G1/04 ,  C02F1/00 ,  C02F101/10 ,  C02F103/10 ,  B03D3/06

Abstract: A transitional treatment composition and methods of treating coal refuse are provided. The transitional treatment composition comprises an anionic acrylate-acrylamide copolymer having from about 30 mole percent to about 50 mole percent (meth)acrylate, from about 50 mole percent to about 70 mole percent (meth)acrylamide, and a reduced specific viscosity of from about 18 dL/g to about 30 dL/g. The transitional treatment composition can be made down in an aqueous liquid.

公开(公告)号：US10793444B2

公开(公告)日：2020-10-06

申请号：US16141290

申请日：2018-09-25

Applicant: Ecolab USA Inc.

Inventor： Michael Ignazio LaRosa ,  Christopher Ryan Greulich ,  Michael Gary Strominger

IPC: C01F7/06 ,  C22B21/00 ,  C22B1/00 ,  B01D21/26

Abstract: Disclosed herein are methods and compositions for increasing the alumina content of a bauxite ore prior to alumina extraction by an extractive process, such as the Bayer process. By adding a beneficiation agent to an aqueous ore slurry, then applying a gravitational force to separate, or partition, the slurry into a beneficiary and a gangue, a number of quantifiable benefits are observed. These include increased alumina content and reduced silica content in the beneficiary solids as compared to the starting ore. These benefits are in excess of those observed by pre-extraction gravitational separation of ore slurries without the addition of a beneficiation agent. Beneficiation agents include DADMAC polymers, and combinations of DADMAC polymers with dextrans. The beneficiary is collected and applied to an extractive process, such as the Bayer process.

公开(公告)号：US20180016166A1

公开(公告)日：2018-01-18

申请号：US15648891

申请日：2017-07-13

Applicant: Ecolab USA Inc.

Inventor： Christopher Ryan Greulich ,  Kevin McDonald ,  Weiguo Cheng

IPC: C02F1/56 ,  C08F220/56 ,  C08F220/06 ,  C02F101/10 ,  C02F103/10

CPC classification number: C02F1/56 ,  C02F2001/007 ,  C02F2101/10 ,  C02F2103/10 ,  C08F220/06 ,  C08F220/56

Abstract: A transitional treatment composition and methods of treating coal refuse are provided. The transitional treatment composition comprises an anionic acrylate-acrylamide copolymer having from about 30 mole percent to about 50 mole percent (meth)acrylate, from about 50 mole percent to about 70 mole percent (meth)acrylamide, and a reduced specific viscosity of from about 18 dL/g to about 30 dL/g. The transitional treatment composition can be made down in an aqueous liquid.

公开(公告)号：US20220062919A1

公开(公告)日：2022-03-03

申请号：US17410220

申请日：2021-08-24

Applicant: Ecolab USA Inc.

Inventor： Christopher Ryan Greulich ,  Kevin O'Brien ,  Michael Ignazio LaRosa

IPC: B03D1/02 ,  B03D1/012

Abstract: Described herein are methods of reducing the viscosity of products of sulfide ore froth flotation. A froth overflow, or an underflow of sulfide ore flotation is treated using a nonionic compound to reduce the viscosity of a froth or an underflow. The lowered viscosity imparts several benefits in sulfide ore processing of copper and molybdenum metal products, including increased rate of sedimentation to yield a concentrated product.

公开(公告)号：US20210214819A1

公开(公告)日：2021-07-15

申请号：US17268356

申请日：2019-09-24

Applicant: Ecolab USA Inc.

Inventor： Christopher Ryan Greulich ,  Michael Ignazio LaRosa ,  Ronald Verne Davis

IPC: C22B1/00 ,  C22B15/00 ,  C22B11/00

Abstract: Disclosed herein are methods and compositions for increasing the alumina content of a bauxite ore prior to alumina extraction by an extractive process, such as the Bayer process. By adding a beneficiation agent to an aqueous ore slurry, then applying a gravitational force to separate, or partition, the slurry into a beneficiary and a gangue, a number of quantifiable benefits are observed. These include increased alumina content and reduced silica content in the beneficiary solids as compared to the starting ore. These benefits are in excess of those observed by pre-extraction gravitational separation of ore slurries without the addition of a beneficiation agent. Beneficiation agents include DADMAC polymers, and combinations of DADMAC polymers with dextrans. The beneficiary is collected and applied to an extractive process, such as the Bayer process.

公开(公告)号：US20190092646A1

公开(公告)日：2019-03-28

申请号：US16141290

申请日：2018-09-25

Applicant: Ecolab USA Inc.

Inventor： Michael Ignazio LaRosa ,  Christopher Ryan Greulich ,  Michael Gary Strominger

IPC: C01F7/06

Abstract: Disclosed herein are methods and compositions for increasing the alumina content of a bauxite ore prior to alumina extraction by an extractive process, such as the Bayer process. By adding a beneficiation agent to an aqueous ore slurry, then applying a gravitational force to separate, or partition, the slurry into a beneficiary and a gangue, a number of quantifiable benefits are observed. These include increased alumina content and reduced silica content in the beneficiary solids as compared to the starting ore. These benefits are in excess of those observed by pre-extraction gravitational separation of ore slurries without the addition of a beneficiation agent. Beneficiation agents include DADMAC polymers, and combinations of DADMAC polymers with dextrans. The beneficiary is collected and applied to an extractive process, such as the Bayer process.