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    Heat Transfer Fluids Containing Synergistic Blends of Corrosion Inhibitor Formulations
    5.
    发明申请
    Heat Transfer Fluids Containing Synergistic Blends of Corrosion Inhibitor Formulations 有权

    公开(公告)号：US20230131554A1

    公开(公告)日：2023-04-27

    申请号：US18086092

    申请日：2022-12-21

    申请人： PRESTONE PRODUCTS CORPORATION

    发明人： Bo Yang ,  Peter M. Woyciesjes

    IPC分类号： C09K5/10 ,  C23F11/167

    摘要： Corrosion inhibitor formulations for use in heat transfer fluids include: (a) an optionally substituted benzoic acid or a salt thereof; (b) at least a first n-alkyl monocarboxylic acid or a salt thereof and a second n-alkyl monocarboxylic acid or a salt thereof, the first n-alkyl monocarboxylic acid and the second n-alkyl monocarboxylic acid being different; and (c) an azole compound. A ratio of weight percent of the first n-alkyl monocarboxylic acid or the salt thereof to weight percent of the second n-alkyl monocarboxylic acid or the salt thereof ranges from about 1:0.75 to about 1:2.00. A ratio of weight percent of the benzoic acid or the salt thereof to combined weight percent of the first n-alkyl monocarboxylic acid or the salt thereof and the second n-alkyl monocarboxylic acid or the salt thereof ranges from about 1:0.30 to about 1:2.25.

    METHODS FOR FORMING PEROXYFORMIC ACID AND USES THEREOF
    6.
    发明申请
    METHODS FOR FORMING PEROXYFORMIC ACID AND USES THEREOF 有权

    公开(公告)号：US20220227708A1

    公开(公告)日：2022-07-21

    申请号：US17658471

    申请日：2022-04-08

    申请人： ECOLAB USA INC.

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

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

    摘要： 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.

    Composition and method for treating white rust
    9.
    发明授权
    Composition and method for treating white rust 有权

    公开(公告)号：US10280520B2

    公开(公告)日：2019-05-07

    申请号：US15870260

    申请日：2018-01-12

    申请人： NCH Corporation

    发明人： Ecaterina Henderson ,  Lyle H. Steimel

    IPC分类号： C23F11/167 ,  C23F11/14 ,  C23F11/173 ,  C23F11/10 ,  C02F5/00

    摘要： A composition and method of inhibiting white rust on galvanized steel in water system. The composition preferably comprises two parts, a first part comprising oleylamine and optionally comprising 2-diethylaminoethanol and cyclohexylamine, and a second part comprising phosphonobutane tricarboxylic acid, tolytriazole, and a polymer, and optionally comprising a tracer or sodium hydroxide. A preferred composition comprises two commercially available products, Cetamine V217 S and Chem-Aqua 31155. A preferred method of inhibiting white rust comprises adding the two parts of the composition or two commerically available products to the water in a water system to be treated in an amount sufficient to provide a concentration of the first part of around 200-500 ppm and of the second part of around 50-150 ppm.

    Multiple hydrophilic head corrosion inhibitors
    10.
    发明授权
    Multiple hydrophilic head corrosion inhibitors 有权

    公开(公告)号：US10246628B2

    公开(公告)日：2019-04-02

    申请号：US15465787

    申请日：2017-03-22

    申请人： Multi-Chem Group, LLC

    发明人： Liangwei Qu ,  Nathan Darrell Davis ,  Funian Zhao ,  Qiang Fu

    IPC分类号： C09K8/54 ,  C23F11/04 ,  F16L58/04 ,  C09K8/035 ,  C09K8/40 ,  C23F11/14 ,  C23F11/167

    摘要： Compounds comprising multiple hydrophilic heads and a lipophilic tail may be contacted with a metal or other surface so as to adhere to the surface and inhibit corrosion, among other things. Suitable hydrophilic heads may include quaternary ammonium cation moieties, phosphonium cation moieties, and combinations thereof. Such corrosion-inhibiting compounds may be introduced into a wellbore penetrating at least a portion of a subterranean formation, for instance in oil and/or gas recovery operations and the like, whereupon the compound may adhere to a metal or other surface downhole so as to inhibit corrosion of the surface. These compounds may be employed in various other environments, such as any metal or other surface that may be exposed to corrosive conditions.