公开(公告)号：US11846029B2

公开(公告)日：2023-12-19

申请号：US17850981

申请日：2022-06-27

申请人： Ecolab USA Inc.

发明人： Zhengang Zong ,  Roger W. Fowee ,  Joe L. Schwartz ,  Ashish Dhawan ,  Jeremy Moloney

IPC分类号： C23F11/14 ,  G21C13/02 ,  G21C13/08 ,  C02F5/12 ,  C09K8/54 ,  C02F103/02

CPC分类号： C23F11/141 ,  C02F5/12 ,  C09K8/54 ,  C23F11/14 ,  C23F11/143 ,  C23F11/145 ,  G21C13/02 ,  G21C13/08 ,  C02F2103/02 ,  C02F2303/08

摘要： Disclosed are oleyl propylenediamine-based compounds used in compositions and methods for inhibiting corrosion. The method comprises introducing into a fluid source a composition comprising one or more oleyl propylenediamine-based compounds comprising Formula I:






wherein Y1, Y2, and Y3 independently are hydrogen or a substituent of Formula (II):










wherein V is —O— or —NH—, W is optionally present and is a linear or branched C1-10 aliphatic group, X is —H, —NZ3+, —COOH, —SO3H, —OSO3H2, —PO3H, —OPO3H2, or a salt thereof, each Z independently is hydrogen or a linear or branched C1-20 aliphatic group optionally interrupted or substituted with one or more oxygen atoms, and R is hydrogen or methyl, provided that at least one of Y1, Y2, or Y3 is a substituent of Formula (II).

公开(公告)号：US11814734B2

公开(公告)日：2023-11-14

申请号：US16868752

申请日：2020-05-07

申请人： ECOLAB USA INC.

发明人： Anand Harbindu

IPC分类号： C23F11/14 ,  C07D487/04 ,  C02F5/12 ,  C02F1/72

CPC分类号： C23F11/149 ,  C02F5/12 ,  C07D487/04 ,  C02F1/72 ,  C02F2303/08 ,  C02F2303/22

摘要： The present disclosure relates to corrosion inhibitor compositions, formulations, and compounds. The compositions, formulations, and compounds may be used is various methods to inhibit corrosion of metallic surfaces in aqueous environments. The corrosion inhibitor compositions may include one of the following compounds or any combination of any of the compounds of formula (I):

公开(公告)号：US11781068B2

公开(公告)日：2023-10-10

申请号：US17005322

申请日：2020-08-28

申请人： Shanghai CEO Environmental Protection Technology Co., Ltd. ,  Tongji University

发明人： Fengting Li ,  Yufei Lu ,  Bingru Zhang ,  Xianwei Qu ,  Chunjiang Li

IPC分类号： C09F5/12 ,  C09K15/28 ,  C02F5/12 ,  C07C335/32 ,  C23F11/16 ,  C02F103/02

CPC分类号： C09K15/28 ,  C02F5/12 ,  C07C335/32 ,  C23F11/16 ,  C02F2103/023

摘要： A corrosion inhibitor for a soft water circulation heating and cooling system, wherein the corrosion inhibitor is pentapentanol core hyperbranched macromolecule functionalized by isothiourea and carboxyl, which has a chemical formula of C5H7O5{COC(CH3)[CH2OCOCH2CH(COOH)SC(NH)NH2]2}5. The corrosion inhibitor provided by the present invention is non-phosphorus, biodegradable, non-toxic, low in cost and has good corrosion inhibition effect. Moreover, it has excellent corrosion inhibition performance for circulating heating and cooling systems using soft water as the water source, and can significantly improve the reuse rate of circulating water. The present invention also provides a preparation method of the corrosion inhibitor, which is simple, easy to obtain raw materials and easy to industrialize.

公开(公告)号：US11708283B2

公开(公告)日：2023-07-25

申请号：US15734061

申请日：2019-05-31

申请人： CORNELL UNIVERSITY

发明人： Justin Wilson ,  Nikki Thiele

IPC分类号： C02F1/68 ,  C02F5/12 ,  C02F5/14 ,  C07D413/14 ,  C07F9/6533 ,  C02F101/00

CPC分类号： C02F1/683 ,  C02F5/12 ,  C02F5/14 ,  C07D413/14 ,  C07F9/6533 ,  C02F2101/006

摘要： Metal-chelating compositions having the structure (1a) wherein: R1, R2, R3, and R4 are independently selected from the following groups: (i) hydrogen atom, (ii) hydrocarbon groups (R) containing 1-12 carbon atoms; (iii) halogen atoms; (iv) —P(R5) (═O)OH groups; (v) —C(═O)OH groups; (vi) —S(═O)2OH groups; and (vii) —OH groups, wherein R5 is selected from hydrocarbon groups (R) and —OH; R1 and R2 may optionally interconnect to form Ring A fused to the ring on which R1 and R2 are present; R3 and R4 may optionally interconnect to form Ring B fused to the ring on which R3 and R4 are present; wherein Ring A and Ring B are optionally and independently substituted with one or more of groups (ii)-(vii). Methods of using the above-described compositions for chelating metal ions having an atomic number of at least 56 (e.g., Ba or Ra) are also described.

公开(公告)号：US11661365B2

公开(公告)日：2023-05-30

申请号：US16426397

申请日：2019-05-30

申请人： NCH Corporation

发明人： Marta Drewniak ,  Lyle H. Steimel

IPC分类号： C02F5/14 ,  C02F5/12 ,  C23F11/10 ,  C23F11/14 ,  C23F11/167 ,  C23F11/173 ,  C02F103/02

CPC分类号： C02F5/14 ,  C02F5/12 ,  C23F11/10 ,  C23F11/144 ,  C23F11/1676 ,  C23F11/173 ,  C02F2103/023 ,  C02F2303/08

摘要： A composition and method of inhibiting corrosion and white rust on metal components in a water system. The composition preferably comprises an amino-acid based polymer (most preferably a polyaspartic acid or a salt thereof), hydroxyphosphonoacetic acid, and a second phosphonic acid (preferably a phosphonocarboxylic acid), and does not require the use of regulated metals. The composition is effective even in the presence of biocides. A preferred method of inhibiting white rust comprises adding an amino-acid based polymer or hydroxyphosphonoacetic acid or both to the water system. A preferred method of inhibiting corrosion or white rust comprises adding an amino-acid based polymer, hydroxyphosphonoacetic acid, and a phosphonocarboxylic acid to the water system. Preferably the active concentrations are at least 3 ppm each of the amino-acid based polymer and hydroxyphosphonoacetic acid when added to a volume of water in the water system.

公开(公告)号：US20180200678A1

公开(公告)日：2018-07-19

申请号：US15743949

申请日：2016-03-23

申请人： KURITA WATER INDUSTRIES LTD.

发明人： Kazuki ISHII ,  Takahiro KAWAKATSU

IPC分类号： B01D65/02 ,  B01D71/56 ,  B01D61/02 ,  C11D1/02 ,  C11D3/20 ,  C11D3/37

CPC分类号： B01D65/02 ,  B01D61/025 ,  B01D71/56 ,  B01D2321/164 ,  B01D2321/168 ,  C02F1/441 ,  C02F5/10 ,  C02F5/12 ,  C02F2103/08 ,  C11D1/02 ,  C11D3/044 ,  C11D3/2086 ,  C11D3/37 ,  C11D7/06 ,  C11D7/265 ,  C11D11/0041 ,  Y02A20/131

摘要： An agent for cleaning an RO membrane, which includes an aldonic acid and/or a salt of an aldonic acid, removes effectively foulants that cannot be sufficiently removed with conventional cleaning agents when an RO membrane used for water treatment. In a method for cleaning an RO membrane with the cleaning agent or the cleaning liquid, while the detachment and hydrolysis effects are achieved by performing cleaning under alkaline conditions, chelation of heavy metals is caused by the aldonic acid and/or the salt of an aldonic acid. When an anionic surfactant is used in combination with the aldonic acid and/or the salt of an aldonic acid, the anionic surfactant causes the detachment of foulants. When a polyol having a molecular weight of 1000 or less is used in combination with the aldonic acid and/or the salt of an aldonic acid, the polyol causes wetting and swelling of foulants.

公开(公告)号：US20180105732A1

公开(公告)日：2018-04-19

申请号：US15562852

申请日：2016-03-01

申请人： Clariant International, Ltd.

发明人： Cyril Emeka OKOCHA ,  Jonathan Wylde

IPC分类号： C09K8/532

CPC分类号： C09K8/532 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C02F2101/101 ,  C02F2103/10 ,  C02F2303/22 ,  C09K8/528 ,  C09K2208/20 ,  C09K2208/32

摘要： The present invention provides a composition useful as a sulfide scale inhibitor for application in oilfield operations, comprising 1) at least one copolymer that comprises as monomers a) 0.1 to 10 mol-%, of structural units derived from vinylphosphonic acid and/or of a salt thereof, b) 40 to 80 mol-% of structural units derived from compounds of the formula (1) c) 1 to 50 mol-% of structural units derived from compounds of the formula (2) in which X is OH or NR3R4, and R3 and R4, independently of one another, are H or C1-C4-alkyl, 2) at least one of tris (hydroxymethyl) phosphine or a tetrakis(hydroxymethyl)phosphonium salt, 3) at least one surfactant, 4) at least one amine or ammonium salt.

公开(公告)号：US09714181B2

公开(公告)日：2017-07-25

申请号：US15109261

申请日：2014-12-29

申请人： GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND RESEARCH INSTITUTE

发明人： Bo Yang ,  Maodong Li ,  Zhigang Chen ,  Weiwen Ye ,  Hua Li ,  Junming Zhao ,  Hui Zhang ,  Jinmei Lin ,  Wen Yu ,  Ming Zeng ,  Zongjie Yin ,  Juan Liu

IPC分类号： C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C02F5/08 ,  C09K15/32 ,  C02F101/10

CPC分类号： C02F5/105 ,  C02F5/083 ,  C02F5/12 ,  C02F5/125 ,  C02F5/145 ,  C02F2101/10 ,  C02F2303/08 ,  C09K15/328 ,  C23F11/08 ,  C23F14/02

摘要： A terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning, containing tourmaline, polyaspartic acid, polyepoxysuccinic acid, polymaleic acid, etidronic acid, zinc salt, and the like, wherein the content of the tourmaline is 5-500 g/t (calculated based on solid form); the content of polyaspartic acid, polyepoxysuccinic acid, polymaleic acid and etidronic acid is 2-60 g/t (calculated based on liquid form); and the content of the zinc salt is 0.2-0.8 g/t (calculated based on solid form), is provided. Also disclosed is a method of preparing the terpolymerized corrosion and scale inhibitor used in circulating cooling water of central air conditioning.

公开(公告)号：US20170174543A1

公开(公告)日：2017-06-22

申请号：US15448429

申请日：2017-03-02

申请人： Massachusetts Institute of Technology

发明人： Prakash Narayan Govindan ,  Windsor Sung ,  Steven Lam ,  Maximus G. St. John ,  John H. Lienhard ,  Mohammed Mirhi ,  Anurag Bajpayee

IPC分类号： C02F5/08 ,  C02F1/66 ,  C02F1/44

CPC分类号： C02F5/08 ,  B01D61/025 ,  B01D61/04 ,  B01D61/145 ,  B01D61/364 ,  B01D61/44 ,  B01D61/58 ,  B01D2311/08 ,  C02F1/04 ,  C02F1/441 ,  C02F1/444 ,  C02F1/66 ,  C02F1/683 ,  C02F5/12 ,  C02F9/00 ,  C02F2101/10 ,  C02F2103/08 ,  C02F2103/10 ,  C02F2303/16 ,  C09K8/528 ,  Y02A20/128 ,  Y02A20/131 ,  Y02A20/134 ,  B01D2311/18

摘要： Cations that can precipitate from an aqueous composition to produce scaling are sequestered by adding a multi-dentate ligand to the aqueous composition. The multi-dentate ligand bonds with the cation to form a non-scaling ionic complex; and the aqueous solution with the ionic complex is used in a process that produces substantially pure water from the aqueous composition, where the cation, absent formation of the ionic complex, is subject to scaling. The pH of the aqueous composition (or a brine including components of the aqueous composition) is then reduced to release the cation from the multi-dentate ligand; and the multi-dentate ligand, after the cation is released, is then reused in a predominantly closed loop.

公开(公告)号：US09656914B2

公开(公告)日：2017-05-23

申请号：US13875061

申请日：2013-05-01

申请人： Ecolab USA, Inc.

发明人： Jasbir Gill ,  Tzu Y Chen ,  Reagan Faith ,  Adam Coulterman

IPC分类号： C01F11/02 ,  C04B2/00 ,  C02F5/02 ,  C02F5/08 ,  C02F5/10 ,  C02F1/52 ,  C01F5/02 ,  C02F1/00 ,  C01B13/14 ,  B03D3/00 ,  B01D21/01 ,  C02F5/00

CPC分类号： C08K3/22 ,  C01F5/02 ,  C01F11/02 ,  C01P2006/22 ,  C02F5/00 ,  C02F5/083 ,  C02F5/105 ,  C02F5/12 ,  C02F2101/10 ,  C02F2103/02 ,  C02F2103/10 ,  C02F2209/09 ,  C04B2/00 ,  C08K2003/222

摘要： Rheology modifying agents and methods of modifying the rheology of a slurry are disclosed, in addition to methods for the prevention of fouling. The slurry can be a lime slurry or a magnesium oxide slurry. The rheology modifying agent can be a low molecular weight anionic polymer, a high molecular weight polymer, a mixture of a low molecular weight anionic polymer and a high molecular weight polymer, a mixture of a high molecular weight polymer and a chelating agent, and a mixture of a chelating agent, a high molecular weight polymer, and a low molecular weight anionic polymer.