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公开(公告)号：US20230337667A1
公开(公告)日：2023-10-26
申请号：US18345408
申请日：2023-06-30
Applicant: ECOLAB USA INC.
Inventor： Paul R. Kraus , Benjamin Crew , Junzhong Li , David D. McSherry , Ramakrishnan Balasubramanian , Richard Staub , Ariel Chatman Kleczewski , Minh Tran , Catherine Hanson , Irwan Yunus , Jeffery D. Breshears , Brian Paul Brunner
IPC: A01N37/36 , A01N37/16 , B01J19/18 , C07C407/00 , A23L3/3463 , A23L3/3481 , C23F11/10 , A23L3/3499 , B01J19/24 , C07C51/367
CPC classification number: A01N37/36 , A01N37/16 , B01J19/1812 , B01J19/1818 , C07C407/00 , A23L3/3463 , A23L3/3481 , C23F11/10 , A23L3/3499 , B01J19/2415 , C07C51/367 , Y02W10/37 , A23V2002/00 , B01J2219/00051 , B01J2219/00094 , B01J2219/00132 , B01J2219/00144
Abstract: Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
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32.发明授权公开(公告)号：US11674935B2
公开(公告)日：2023-06-13
申请号：US16949739
申请日：2020-11-12
Applicant: ECOLAB USA INC.
Inventor： Ramakrishnan Balasubramanian , Junzhong Li
CPC classification number: G01N31/228 , G01N21/78 , G01N33/18
Abstract: A composition, method and kit for quantifying the concentration of one peracid or the total concentration of two or more peracids in a water source are disclosed. In particular, an oxidation sensitive or peroxycarboxylic acid selective leuco dye is used to react only with one or more peroxycarboxylic acids in a water source but not with peroxide usually co-existing in the water source. Not only does the oxidation sensitive or peroxycarboxylic acid selective leuco dye react with peracid(s) but also the reaction generates a color species that can be used visually or through absorbance measurement to quantify the peracid concentration. The method disclosed here is not a titration method, it involves a simple mixing step. The kit or composition disclosed here does not utilize a catalyst, such as iodine.
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公开(公告)号：US11647747B2
公开(公告)日：2023-05-16
申请号：US17302678
申请日：2021-05-10
Applicant: ECOLAB USA INC.
Inventor： Junzhong Li , Cynthia Bunders , Richard Staub , Paul Frazer Schacht , Caleb Power , Ramakrishnan Balasubramanian , Robert J. Ryther , Catherine Hanson
CPC classification number: A01N37/16 , A61L2/18 , A61L2/186 , A61L2202/17
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.
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公开(公告)号：US20220267612A1
公开(公告)日：2022-08-25
申请号：US17662169
申请日：2022-05-05
Applicant: ECOLAB USA INC.
Inventor： Ramakrishnan Balasubramanian , Brian Epps , Jeremy Moloney , Ethan Moloney
IPC: C09D5/08 , C23F11/14 , C23F11/12 , C23F11/16 , C23F11/10 , C09K8/54 , C09K8/60 , A01N37/16 , C09D5/14 , C09D5/16 , C23F11/04 , C23F11/173
Abstract: Methods of employing corrosion inhibitors with oxidizing and/or non-oxidizing biocides, such as peroxycarboxylic acids, to provide corrosion protected compositions are disclosed. Various corrosion inhibitors further provide biocidal efficacy in addition to the corrosion protection providing further benefits for application of use. Methods of employing corrosion protected biocide compositions, such as peroxycarboxylic acid compositions, for corrosion protection are particularly well suited for treating fluids intended to flow through pipes, namely in the energy industry, water and paper industries, etc. Methods providing suitable corrosion protection in comparison to untreated systems and corrosion protected systems using conventional corrosion inhibitors, such as quaternary amines and imidazolines commonly used in the industry, are disclosed.
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公开(公告)号：US11325887B2
公开(公告)日：2022-05-10
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.
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Patent Agency Ranking
公开(公告)号：US20210282397A1
公开(公告)日：2021-09-16
申请号：US17302678
申请日：2021-05-10
Applicant: ECOLAB USA INC.
Inventor： Junzhong Li , Cynthia Bunders , Richard Staub , Paul Frazer Schacht , Caleb Power , Ramakrishnan Balasubramanian , Robert J. Ryther , Catherine Hanson
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.
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公开(公告)号：US20200323205A1
公开(公告)日：2020-10-15
申请号：US16946513
申请日：2020-06-25
Applicant: ECOLAB USA INC.
Inventor： Paul R. Kraus , Benjamin Crew , Junzhong Li , David D. McSherry , Ramakrishnan Balasubramanian , Richard Staub , Ariel Chatman Kleczewski , Minh Tran , Catherine Hanson , Irwan Yunus , Jeffery D. Breshears , Brian Paul Brunner
IPC: A01N37/36 , A01N37/16 , B01J19/18 , C07C407/00 , A23L3/3463 , A23L3/3481 , C23F11/10 , A23L3/3499 , B01J19/24 , C07C51/367
Abstract: Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
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公开(公告)号：US10729131B2
公开(公告)日：2020-08-04
申请号：US16183571
申请日：2018-11-07
Applicant: Ecolab USA Inc.
Inventor： Paul R. Kraus , Benjamin Crew , Junzhong Li , David D. McSherry , Ramakrishnan Balasubramanian , Richard Staub , Ariel Chatman Kleczewski , Minh Tran , Catherine Hanson , Irwan Yunus , Jeffery D. Breshears , Brian Paul Brunner
IPC: B01J10/00 , B01D11/04 , A61L2/00 , A01N37/36 , A01N37/16 , B01J19/18 , C07C407/00 , A23L3/3463 , A23L3/3481 , C23F11/10 , A23L3/3499 , B01J19/24 , C07C51/367
Abstract: Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
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公开(公告)号：US10407591B2
公开(公告)日：2019-09-10
申请号：US14557617
申请日：2014-12-02
Applicant: ECOLAB USA INC.
Inventor： Evan Hendrickson , Ramakrishnan Balasubramanian , Andrew Wold , Robert D. P. Hei
IPC: C09D175/04 , C09D7/63 , E04F15/00 , C08K5/5419
Abstract: The present invention is directed to low solid surface coating compositions and methods of using the same. The low solid surface coating compositions comprise a self-crosslinking polymer, a solvent, a surfactant, and water. The low solid surface coating compositions can preferably have a total solid content of less than 15%.
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公开(公告)号：US10233149B2
公开(公告)日：2019-03-19
申请号：US15730502
申请日：2017-10-11
Applicant: ECOLAB USA INC.
Inventor： Ramakrishnan Balasubramanian , Junzhong Li , Richard Staub , Victor Keasler , Brian Bennett , Allison Brewster
IPC: A01N37/16 , A23L3/3463 , A23L3/3508 , C07C407/00 , C07C409/24
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.
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