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公开(公告)号：US20240209291A1
公开(公告)日：2024-06-27
申请号：US18538016
申请日：2023-12-13
Applicant: Beratherm AG
Inventor： Alexander POHL , Gunter Rolf BLUMHOFER , Michael Hugo GOEBEL
Abstract: An aqueous cleaning solution for removing rouging deposits on media-contacted surfaces of stainless steels comprises a first component and a second component. The first component is an alkali sulfite and the second component is an alkali formate, wherein the concentrations thereof are adjusted in such manner that formate is present in a molar ratio of 1.5 to 4.2 relative to sulfite, and that the pH value of the cleaning solution is 4.0 to 4.8. For preparing the aqueous cleaning solution, an aqueous solution of an alkali hydroxide is provided initially, thereafter a first amount of concentrated aqueous formic acid is admixed in an excess in such manner that a pH value of 3.5 to 4.5 is established, then a second amount of solid alkali sulfite is admixed in accordance with the sulfite concentration to be established, thus resulting in a pH value of 5.5 to 6.5, and finally a third amount of concentrated aqueous formic acid is admixed until a pH value of 4.0 to 4.8 is attained.
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公开(公告)号：US20180102194A1
公开(公告)日：2018-04-12
申请号：US15712616
申请日：2017-09-22
Applicant: Korea Atomic Energy Research Institute
Inventor： Sang Yoon Park , Hui-Jun Won , Seonbyeong Kim , Wangkyu Choi , Mansoo Choi , Chong-Hun Jung , In-Ho Yoon , JeikWon Moon , Jun Young Jung , Jungsoon Park
Abstract: The present invention provides a decontamination method including the steps of decontaminating an object containing radioactive contaminated metals or alloys with a chemical decontamination agent comprising sulfuric acid (H2SO4) and forming a Ba or Sr precipitate by adding Ba or Sr cation and hydroxyl ion or halogen anion salts to the decontamination waste water.The present invention also provides a kit for decontamination including a chemical decontamination agent including sulfuric acid (H2SO4) to decontaminate an object containing radioactive contaminated metals or alloys and Ba or Sr cation and hydroxyl ion or halogen anion salts to be added to the decontamination waste water to form a precipitate.
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公开(公告)号：US09926517B2
公开(公告)日：2018-03-27
申请号：US14874924
申请日：2015-10-05
Applicant: General Electric Company
Inventor： Nicole Jessica Tibbetts , Evan J. Dolley , Bernard Patrick Bewlay , Denise Anne Anderson , Nathan David McLean , Eric John Telfeyan , Frank Wagenbaugh
IPC: B08B3/08 , C11D3/20 , C11D3/30 , F01D25/00 , C23G1/02 , C11D11/00 , C23G1/08 , C11D1/94 , C11D3/34 , C23G1/06 , C11D1/10 , C11D1/72 , C11D1/88
CPC classification number: C11D3/2086 , B08B3/08 , C11D1/72 , C11D1/88 , C11D1/94 , C11D3/30 , C11D3/3409 , C11D11/0041 , C23G1/02 , C23G1/061 , C23G1/088 , F01D25/002 , Y02T50/672
Abstract: A method of cleaning a turbine engine includes directing a cleaning solution towards a component of the turbine engine having a layer of foreign material thereon, the cleaning solution including water, a first organic acidic component, a second organic acidic component, isopropylamine sulphonate, alcohol ethoxylate, triethanol amine, and sodium lauriminodipropionate. The cleaning solution has a pH between 2.5 and 7.0.
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公开(公告)号：US09822456B2
公开(公告)日：2017-11-21
申请号：US15333872
申请日：2016-10-25
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Youhao Yang , Liming Zhang , Yingna Wu , Lawrence James Whims , Hong Zhou , Hui Zhu , Chuan Lin
Abstract: A method for removing oxide from a metallic substrate is described. The method includes providing a stream of boron trifluoride; heating the metallic substrate at a first temperature; and heating the metallic substrate at a second temperature different from the first temperature. An associated apparatus is also described.
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公开(公告)号：US09782804B1
公开(公告)日：2017-10-10
申请号：US14057817
申请日：2013-10-18
Applicant: CORRLINE INTERNATIONAL, LLC
Inventor： Loren L. Hatle , James J. Knocke
CPC classification number: C11D3/042 , B08B3/00 , B08B3/04 , C11D3/044 , C11D3/10 , C11D3/124 , C11D3/1266 , C11D3/2075 , C11D3/222 , C11D3/30 , C11D3/3947 , C11D11/0029 , C11D11/0052 , C11D11/0064 , C23C22/02 , C23G1/00 , C23G1/02
Abstract: A method for passivating substrate surfaces by removing surface contaminants. The method can remove impurities and components from the surface of a substrate to prevent corrosion and undesirable chemical activity. The method further provides an optimized surface for the application of protective barrier coatings. The method provides significant cost savings due to increased life of substrate, reduced maintenance, and superior barrier coating performance.
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Patent Agency Ranking
公开(公告)号：US20170121829A1
公开(公告)日：2017-05-04
申请号：US15333872
申请日：2016-10-25
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Youhao YANG , Liming ZHANG , Yingna WU , Lawrence James WHIMS , Hong ZHOU , Hui ZHU , Chuan LIN
IPC: C23G1/02
Abstract: A method for removing oxide from a metallic substrate is described. The method includes providing a stream of boron trifluoride; heating the metallic substrate at a first temperature; and heating the metallic substrate at a second temperature different from the first temperature. An associated apparatus is also described.
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公开(公告)号：US20170114900A1
公开(公告)日：2017-04-27
申请号：US15305108
申请日：2015-03-16
Applicant: NISSHIN STEEL CO., LTD.
Inventor： Hiroyasu MATSUBAYASHI , Sadayuki NAKAMURA , Junichi KATSUKI , Ryoji HIROTA
IPC: F16J15/08 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C23G1/02 , C22C38/04 , C22C38/02 , C22C38/00 , C21D9/46 , C21D8/02 , C22C38/58 , C22C38/06
CPC classification number: F16J15/0806 , C21C7/06 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D8/0278 , C21D9/46 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C23G1/02 , F16J15/08
Abstract: Provided is a martensitic stainless-steel sheet having a reduced anisotropy in workability and fatigue resistance which are attributable to oxide based inclusions. A martensitic stainless-steel sheet which has a steel composition that contains, in terms of mass %, 0.030 to 0.300% C, 0.20 to 2.50% Si, 0.15 to 4.00% Mn, 0.01 to 1.00% Ni, 11.00 to 15.00% Cr, 0.001 to 0.100% N, 0.0001 to 0.0350% Al, 0 to 0.50% V, 0 to 0.50% Nb, 0 to 0.50% Ti, 0 to 0.020% B, and a balance of Fe and unavoidable impurities, and that has a value of γmax, determined by the following equation (1), of 80.0 or greater, and in which oxide based inclusions are observed in the metallographic structure, the oxide based inclusions having a converted composition comprising up to 30 mass % or less Al2O3, 20 to 60 mass % SiO2, and 15 to 70 mass % MnO.
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公开(公告)号：US09612218B2
公开(公告)日：2017-04-04
申请号：US14761022
申请日：2014-02-07
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Tetsuji Kawakami , Hiroyuki Mitsui , Yoshiyuki Inoue
Abstract: This method for determining whether an acidic aqueous solution is usable or not comprises: a first detection step (S21) in which the solution concentration of an acidic aqueous solution resulting from pickling is determined; a second detection step (S23a, S23b) in which the concentration of a specific metal in the acidic aqueous solution resulting from pickling is determined, the metal having been contained in the coating layer; a concentrated-solution addition step (S25b) in which in cases when the solution concentration is equal to or less than a predetermined first threshold, a concentrated acidic aqueous solution is newly added; and a determination step (S24a, S24b) in which in cases when the concentration of the specific metal is equal to or higher than a predetermined second threshold, it is determined that the acidic aqueous solution is unusable.
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公开(公告)号：US20160251603A1
公开(公告)日：2016-09-01
申请号：US14902498
申请日：2014-03-03
Applicant: Xeros Limited
Inventor： John Edward Steele , Robert Andrew Bird
CPC classification number: C11D17/0013 , B08B3/08 , B24C1/00 , C11D3/0073 , C11D3/2075 , C11D3/2086 , C11D3/28 , C11D3/3715 , C11D3/3719 , C11D3/3749 , C11D11/0029 , C23G1/00 , C23G1/02 , C23G1/025 , C23G1/088 , C23G1/125 , C23G1/14 , C23G1/19 , C23G1/22 , C23G1/26
Abstract: A method of removing at least a portion of an oxide layer from the surface of a metal substrate comprising exposing the metal substrate to a body of treatment liquor comprising a treatment formulation and a multiplicity of solid particles which comprise or consists of a multiplicity of polymeric particles and wherein said treatment formulation comprises one or more promoters selected from the group consisting of acids, bases and surfactants wherein the method further comprises causing the solid particles and the metal substrate to enter into contacting relative movement.
Abstract translation: 一种从金属基材的表面去除氧化物层的至少一部分的方法，包括将金属基材暴露于包含处理配方的处理液体和包含多个聚合物颗粒或由多个聚合物颗粒组成的多个固体颗粒的主体 并且其中所述处理制剂包含一种或多种选自酸，碱和表面活性剂的促进剂，其中所述方法还包括使固体颗粒和金属基质进入接触相对运动。
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公开(公告)号：US20160251602A1
公开(公告)日：2016-09-01
申请号：US14902506
申请日：2014-03-03
Applicant: Xeros Limited
Inventor： John Edward Steele , Robert Andrew Bird
IPC: C11D11/00 , C11D3/20 , C11D3/28 , C11D3/00 , B24C1/00 , B08B3/08 , B08B7/00 , B08B3/10 , C23C26/00 , C11D3/37 , C11D17/00
CPC classification number: C11D11/0029 , B08B3/08 , B08B3/102 , B08B7/00 , B24C1/00 , C11D3/0073 , C11D3/2075 , C11D3/2086 , C11D3/28 , C11D3/3715 , C11D3/3719 , C11D3/3749 , C11D3/43 , C11D7/06 , C11D7/08 , C11D7/265 , C11D17/0013 , C23C26/00 , C23G1/00 , C23G1/02 , C23G1/025 , C23G1/088 , C23G1/125 , C23G1/14 , C23G1/19 , C23G1/22 , C23G1/26
Abstract: A method of cleaning a metal substrate, the method comprising exposing the metal substrate to a body of cleaning liquor comprising a cleaning formulation and a multiplicity of solid particles wherein the method further comprises causing the solid particles and the metal substrate to enter into contacting relative movement; wherein i) the cleaning formulation comprises at least one acid which has a pKa greater than about −1.7; and/or ii) the cleaning formulation comprises at least one base which has a pKb greater than about −1.7; and the length of the particles is from about 0.5 mm to about 6 mm.
Abstract translation: 一种清洁金属基底的方法，所述方法包括将金属基底暴露于包含清洁制剂和多种固体颗粒的清洁液体中，其中所述方法还包括使固体颗粒和金属基材进入接触相对运动 ; 其中i）所述清洁制剂包含至少一种pKa大于约-1.7的酸; 和/或ii）清洁制剂包含至少一个pKb大于约-1.7的碱; 并且颗粒的长度为约0.5mm至约6mm。
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