公开(公告)号：US11330818B2

公开(公告)日：2022-05-17

申请号：US16948917

申请日：2020-10-06

Applicant: ECOLAB USA INC.

Inventor： Brandon Herdt ,  Richard Staub ,  Thomas C. Rustad ,  Junzhong Li ,  David D. McSherry ,  Paul R. Kraus ,  Richard Walsh

IPC: B01J19/24 ,  B01J14/00 ,  C07C407/00 ,  A01N37/16 ,  C02F1/50 ,  A01N59/00 ,  B01J4/00 ,  B01J19/00 ,  A61L2/24 ,  C07C409/24 ,  A61L2/18 ,  C02F1/72 ,  A01N37/02 ,  C02F103/08

Abstract: Methods and systems for temperature-controlled, on-site generation of peracids, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions are disclosed. In particular, methods for using an adjustable biocide formulator or generator system overcome the limitations of temperature on the kinetics of the peracid generation and/or peracid decomposition inside an adjustable biocide formulator or generator system. The methods include the controlling of the temperature of at least one raw starting material, namely water, to improve upon methods of on-site generation of peracids. The methods allow for the generation of user-selected chemistry without regard to the ambient temperatures of the raw starting materials and/or the biocide formulator or generator system.

公开(公告)号：US20210368792A1

公开(公告)日：2021-12-02

申请号：US17304480

申请日：2021-06-22

Applicant: ECOLAB USA INC.

Inventor： Junzhong Li ,  Chris Nagel ,  Laura Rice

IPC: A01N43/88 ,  C02F1/50 ,  A61L2/18 ,  A01N47/48 ,  A01N47/14 ,  A01N33/12 ,  A01N35/02 ,  A01N41/10 ,  A01N47/40

Abstract: A method for removing or preventing a microbial growth, biofilm, biomass and/or mineral deposit on a hard surface inside an SO2 scrubber is disclosed. In particular, biocide compositions may be dosed in pulse or continuously for the reduction and prevention of biofilms on the hard surfaces inside an SO2 scrubber. A biocide composition disclosed here uses one or more non-oxidizing biocides, especially a mixture of one or more quaternary ammonium compounds and one or more other biocides.

公开(公告)号：US20210368787A1

公开(公告)日：2021-12-02

申请号：US17303409

申请日：2021-05-28

Applicant: ECOLAB USA INC.

Inventor： Junzhong Li ,  Joshua Luedtke ,  Jesse David Hines ,  John Paul Koehl ,  Richard Staub

IPC: A01N31/02 ,  A01N41/04 ,  A01N41/10 ,  A01N59/00 ,  A01N25/30

Abstract: Biocide compositions efficacious for biofilm control, including treatment and/or prevention, comprising the synergistic combination of biocide(s) with a source of hydronium ions are disclosed. Methods of deactivating, removing and/or preventing biofilms with the compositions are also provided.

公开(公告)号：US11117172B2

公开(公告)日：2021-09-14

申请号：US15929702

申请日：2020-05-18

Applicant: ECOLAB USA INC.

Inventor： Junzhong Li ,  Cynthia Bunders ,  Richard K. Staub ,  Paul Frazer Schacht ,  Caleb Power

IPC: B08B3/08 ,  C11D11/00 ,  B01D41/04 ,  B08B11/00 ,  C11D3/39 ,  A01N37/16

Abstract: Peroxyformic acid compositions for removal of biofilm growth and mineral deposits on membranes are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

公开(公告)号：US11071301B2

公开(公告)日：2021-07-27

申请号：US15783169

申请日：2017-10-13

Applicant: ECOLAB USA INC.

Inventor： Junzhong Li ,  Chris Nagel ,  Laura Rice

IPC: A01N43/88 ,  A01N33/12 ,  A01N35/02 ,  A01N41/10 ,  A01N47/40 ,  B01D53/50 ,  C02F1/50 ,  A61L2/18 ,  A01N47/48 ,  A01N47/14 ,  C02F103/18 ,  B01D53/77

Abstract: A method for removing or preventing a microbial growth, biofilm, biomass and/or mineral deposit on a hard surface inside an SO2 scrubber is disclosed. In particular, biocide compositions may be dosed in pulse or continuously for the reduction and prevention of biofilms on the hard surfaces inside an SO2 scrubber. A biocide composition disclosed here uses one or more non-oxidizing biocides, especially a mixture of one or more quaternary ammonium compounds and one or more other biocides.

公开(公告)号：US11026420B2

公开(公告)日：2021-06-08

申请号：US16559894

申请日：2019-09-04

Applicant: ECOLAB USA INC.

Inventor： Junzhong Li ,  Cynthia Bunders ,  Richard Staub ,  Paul Frazer Schacht ,  Caleb Power ,  Ramakrishnan Balasubramanian ,  Robert J. Ryther ,  Catherine Hanson

IPC: A61L2/18 ,  A01N37/16

Abstract: Peroxyformic acid compositions for treatment and removal of biofilm growth and mineral deposits on membranes for energy services applications are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

公开(公告)号：US20210037818A1

公开(公告)日：2021-02-11

申请号：US16947585

申请日：2020-08-07

Applicant: ECOLAB USA INC.

Inventor： Ashish Dhawan ,  Junzhong Li ,  David D. McSherry ,  Carter M. Silvernail ,  Chris Nagel

IPC: A01N25/22 ,  C07C407/00 ,  A01N37/16 ,  C08F8/30 ,  A01N59/00

Abstract: Stabilized peroxycarboxylic acid compositions and the solid supported peracid stabilizers are provided. Methods of producing the solid supported peracid stabilizers are provided. The solid supported peracid stabilizers and the stable peroxycarboxylic acid compositions are particularly suitable for use in sanitizing equipment and surfaces to reduce yeasts, spores and bacteria, including those having contact with food, food products and/or components thereof, which require or benefit from infection control suitable for direct contact with such food sources.

公开(公告)号：US10899707B2

公开(公告)日：2021-01-26

申请号：US16259009

申请日：2019-01-28

Applicant: ECOLAB USA INC.

Inventor： Ramakrishnan Balasubramanian ,  Junzhong Li ,  Richard Staub ,  Victor Keasler ,  Brian Bennett ,  Allison Brewster

IPC: C07C409/24 ,  C07C407/00 ,  A23L3/3508 ,  C23F11/14 ,  C23F11/10 ,  C23F11/167 ,  A01N37/16 ,  A23L3/3463

Abstract: The present invention relates generally to methods for forming peroxyformic acid, comprising contacting formic acid with hydrogen peroxide. The methods for forming peroxyformic acid can include adding formic acid with a relatively lower concentration of hydrogen peroxide, or adding formic acid to a peroxycarboxylic acid composition or forming composition to react with hydrogen peroxide in the compositions. The present invention also relates to peroxyformic acid formed by the above methods. The present invention further relates to the uses of peroxyformic acid for treating a variety of targets, e.g., target water, including target water used in connection with oil- and gas-field operations. The present invention further relates to methods for reducing or removing H2S or iron sulfide in the treated water source, improving clarity of the treated water source, or reducing the total dissolved oxygen or corrosion in the treated water source, using peroxyformic acid, including peroxyformic acid generated in situ.

公开(公告)号：US10737302B2

公开(公告)日：2020-08-11

申请号：US15381855

申请日：2016-12-16

Applicant: Ecolab USA Inc.

Inventor： Junzhong Li ,  Cynthia Bunders ,  Richard Staub ,  Paul Frazer Schacht ,  Caleb Power

IPC: B08B3/08 ,  C11D11/00 ,  B01D41/04 ,  A01N37/16 ,  B08B11/00 ,  C11D3/39

Abstract: Peroxyformic acid compositions for removal of biofilm growth and mineral deposits on membranes are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.

公开(公告)号：US20200157046A1

公开(公告)日：2020-05-21

申请号：US16773288

申请日：2020-01-27

Applicant: ECOLAB USA INC.

Inventor： Ramakrishnan Balasubramanian ,  Junzhong Li ,  Richard Staub ,  Victor Keasler ,  Brian Bennett ,  Allison Brewster

IPC: C07C409/24 ,  C07C407/00 ,  A23L3/3508 ,  C23F11/14 ,  C23F11/10 ,  C23F11/167 ,  A01N37/16 ,  A23L3/3463

Abstract: The present invention relates generally to methods for forming peroxyformic acid, comprising contacting formic acid with hydrogen peroxide. The methods for forming peroxyformic acid can include adding formic acid with a relatively lower concentration of hydrogen peroxide, or adding formic acid to a peroxycarboxylic acid composition or forming composition to react with hydrogen peroxide in the compositions. The present invention also relates to peroxyformic acid formed by the above methods. The present invention further relates to the uses of peroxyformic acid for treating a variety of targets, e.g., target water, including target water used in connection with oil- and gas-field operations. The present invention further relates to methods for reducing or removing H2S or iron sulfide in the treated water source, improving clarity of the treated water source, or reducing the total dissolved oxygen or corrosion in the treated water source, using peroxyformic acid, including peroxyformic acid generated in situ.