公开(公告)号：US20240300823A1

公开(公告)日：2024-09-12

申请号：US18660375

申请日：2024-05-10

申请人： Imam Abdulrahman Bin Faisal University

发明人： Hanan Hussein Amin MOHAMED

IPC分类号： C01G49/04 ,  B82Y30/00 ,  B82Y40/00 ,  C30B7/14 ,  C30B30/00

CPC分类号： C01G49/04 ,  C30B7/14 ,  C30B30/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/16

摘要： A method for producing crystalline α-Fe2O3 nanoparticles involving ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The method involves preparing an aqueous extract from the seeds of a plant in the family Linacae and dropwise addition of the extract to the solution of an iron (III)-containing precursor. The method yields crystalline nanoparticles of α-Fe2O3 having a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 250 m2/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3hysteresis loop. A method for the photocatalytic decomposition of organic pollutants using the nanoparticles is disclosed. An antibacterial composition containing the crystalline α-Fe2O3 nanoparticles is also disclosed.

公开(公告)号：US20190070598A1

公开(公告)日：2019-03-07

申请号：US16177652

申请日：2018-11-01

申请人： AluChem Companies, Inc.

发明人： Ian Manson

IPC分类号： B01J38/68 ,  C01F7/46 ,  C01G23/047 ,  C01F5/06 ,  B01D9/00 ,  C22B34/22 ,  C01G23/053 ,  C01G49/04 ,  C01F7/30 ,  B01J23/92 ,  B01J23/22 ,  B01J21/04 ,  B01J21/20 ,  C07C51/27

摘要： Digestion of impure alumina with sulfuric acid dissolves all constituents except silica. The resulting sulfates—aluminum sulfate, ferric sulfate, titanyl sulfate, and magnesium sulfate for alumina contaminated with iron-, titanium-, and/or magnesium-containing species—remain in solution at approximately 90° C. Hot filtration separates silica. Solution flow over metallic iron reduces ferric sulfate to ferrous sulfate. Controlled ammonia addition promotes hydrolysis and precipitation of hydrated titania from titanyl sulfate that is removed by filtration. Addition of ammonium sulfate forms ferrous ammonium sulfate and ammonium aluminum sulfate solutions. Alum is preferentially separated by crystallization. Addition of ammonium bicarbonate to an ammonium alum solution precipitates ammonium aluminum carbonate which may be heated to produce alumina, ammonia, and carbon dioxide. The remaining iron rich liquor also contains magnesium sulfate. The addition of oxalic acid generates insoluble ferrous oxalate which is thermally decomposed to ferrous oxide and carbon monoxide which is used to reduce the ferrous oxide to metallic iron. Further oxalic acid addition precipitates magnesium oxalate which is thermally decomposed to magnesium oxide.

公开(公告)号：US09457341B2

公开(公告)日：2016-10-04

申请号：US14224792

申请日：2014-03-25

申请人： Aisin Seiki Kabushiki Kaisha

发明人： Tomoya Tagami ,  Eiji Nakashima ,  Gang Xie ,  Saeki Yamamuro ,  Naoyuki Aratani ,  Takashi Nishikawa

IPC分类号： C01G49/00 ,  B01J23/745 ,  C22B3/16 ,  C01B31/02 ,  C01G49/04 ,  B82Y30/00 ,  B82Y40/00 ,  B01J35/00

CPC分类号： B01J23/745 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/006 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01G49/04 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/64 ,  C22B3/165

摘要： A method of manufacturing a ferrous oxide nanoparticle includes a water removing step raising temperature of a solution containing an iron oxide, an organic acid dissolving the iron oxide, and a first solvent to a first temperature and removing water in the solution, a second temperature maintaining step raising the first temperature to a second temperature and maintaining the second temperature, and a particle extracting step extracting the ferrous oxide nanoparticle from the solution after the second temperature maintaining step.

摘要翻译： 制造氧化亚铁纳米粒子的方法包括将含有氧化铁，溶解氧化铁的有机酸和第一溶剂的溶液的水分除去步骤升高到第一温度并除去溶液中的水，第二温度保持 将第一温度升高到第二温度并保持第二温度，以及在第二温度保持步骤之后从溶液中提取氧化亚铁纳米颗粒的颗粒提取步骤。

公开(公告)号：US09193603B2

公开(公告)日：2015-11-24

申请号：US13712579

申请日：2012-12-12

申请人： National Chung Cheng University

发明人： Yuan-Yao Li ,  Hsin-Chih Yu ,  Li-Chieh Hsu

IPC分类号： C01G49/00 ,  C01G49/02 ,  C01G49/04 ,  C01G49/06 ,  C01G49/08 ,  B22F1/02

CPC分类号： C01G49/02 ,  B22F1/02 ,  C01G49/04 ,  C01G49/06 ,  C01G49/08 ,  Y10T428/2982

摘要： The present invention relates to an urchin-like iron oxide and a method for producing the urchin-like iron oxide. The urchin-like iron oxide comprises a core and multiple needle-like elongations protruded from the core. The needle-like elongations could be wire, rod, tube, cone, and flake. The length/width ratio of the needle-like elongation is high enough to apply in an optoelectronic field. The method in accordance with the present invention is to stably heat an iron-contained powder under room temperature by a thermal oxidation. The surface of the iron-contained powder is slow oxidized to form an urchin-like iron oxide with multiple uniform distributed needle-like elongations protruded from the surface. The size of each needle-like elongation is easily adjusted and changed by controlling the heating temperature. The method has advantages of simplified operation and lowered expense.

摘要翻译： 本发明涉及一种类似于海胆的氧化铁及其制造方法。 类似于海胆的氧化铁包括从芯部突出的芯和多个针状延伸。 针状伸长可以是丝，棒，管，圆锥和片。 针状伸长率的长宽比足够高以适用于光电子场。 根据本发明的方法是通过热氧化在室温下稳定地加热含铁粉末。 含铁粉末的表面被缓慢氧化，形成具有从表面突出的多个均匀分布的针状伸长率的类似于海胆的氧化铁。 通过控制加热温度，可以容易地调节和改变每个针状伸长的尺寸。 该方法具有操作简单，成本降低的优点。

公开(公告)号：US4565683A

公开(公告)日：1986-01-21

申请号：US628520

申请日：1984-07-06

申请人： David J. C. Yates ,  Rees T. Baker

发明人： David J. C. Yates ,  Rees T. Baker

IPC分类号： C01G49/04 ,  D01F9/127 ,  C01B31/02 ,  D01F9/12

CPC分类号： B82Y30/00 ,  C01G49/04 ,  D01F9/1275 ,  D01F9/1278 ,  C01P2002/80 ,  C01P2004/20

摘要： Disclosed is a method for producing carbon filaments by dissociating a carbon-containing gas at a temperature to about 800.degree. C. in the presence of iron monoxide. The iron monoxide can be produced by treating a sample of substantially pure iron with steam at a temperature from about 540.degree. C.

摘要翻译： 公开了一种在一氧化碳存在下，将含碳气体在约800℃的温度下解离来生产碳丝的方法。 一氧化碳可以通过在约540℃的温度下用蒸汽处理基本上纯铁的样品来制备。

公开(公告)号：US1367409A

公开(公告)日：1921-02-01

申请号：US40505520

申请日：1920-08-21

申请人： HERBERT C BUGBIRD ,  JAMES G ROWE ,  RAY H BENNETT

发明人： MACDOUGALL ARCHIBALD J

IPC分类号： C01G49/04

CPC分类号： C01G49/04

公开(公告)号：US11739003B2

公开(公告)日：2023-08-29

申请号：US17543899

申请日：2021-12-07

申请人： Imam Abdulrahman Bin Faisal University

发明人： Hanan Hussein Amin Mohamed

IPC分类号： C01G49/00 ,  C01G49/04 ,  C30B30/00 ,  C30B7/14 ,  B82Y40/00 ,  B82Y30/00

CPC分类号： C01G49/04 ,  C30B7/14 ,  C30B30/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/72 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/16

摘要： Crystalline α-Fe2O3 nanoparticles prepared by ultrasonic treatment of a solution of an iron (III)-containing precursor and an extract from the seeds of a plant in the family Linaceae. The crystalline α-Fe2O3 nanoparticles have a spherical morphology with a diameter of 100 nm to 300 nm, a mean surface area of 240 to 260 m2/g, and a type-II nitrogen adsorption-desorption BET isotherm with a H3 hysteresis loop. The crystalline α-Fe2O3 nanoparticles have a band gap of 2.10 to 2.16 eV and a mean pore size of 7.25 to 9.25 nm. A method for the photocatalytic decomposition of organic pollutants using the crystalline α-Fe2O3 nanoparticles. An antibacterial composition containing the crystalline α-Fe2O3 nanoparticles.

公开(公告)号：US20230212027A1

公开(公告)日：2023-07-06

申请号：US18090683

申请日：2022-12-29

申请人： BYD COMPANY LIMITED

发明人： Shengye WANG ,  Junlan LIAN ,  Hongye LIN

IPC分类号： C01G49/04 ,  C01G49/00

CPC分类号： C01G49/04 ,  C01G49/0009 ,  C01P2002/70 ,  C01P2006/42

摘要： The present disclosure provides a method for separating iron element in brine and application thereof. The method for separating iron element in brine comprises: adding a pH adjusting agent to brine, to adjust pH of the brine to 6.0-7.0, and controlling the temperature of the brine to 75° C.-90° C.; introducing an oxygen-containing gas into the brine, to covert the iron element in the brine into magnetic iron oxide; and separating the magnetic iron oxide from the brine by magnetic adsorption to obtain an iron-removed brine.

公开(公告)号：US09605234B2

公开(公告)日：2017-03-28

申请号：US15261406

申请日：2016-09-09

申请人： Refined Technologies, Inc.

发明人： Sean Sears

IPC分类号： C11D1/75 ,  C11D7/10 ,  C01G49/04 ,  C01B17/02 ,  C01B17/06 ,  C01B21/50 ,  B08B3/08 ,  B08B9/08

CPC分类号： C11D1/75 ,  B08B3/08 ,  B08B9/08 ,  C01B17/02 ,  C01B17/06 ,  C01B21/50 ,  C01G49/04 ,  C11D7/105

摘要： Pyrophoric material such as iron sulfide is frequently found in refinery equipment. When the equipment is opened to the atmosphere for maintenance, an exothermic reaction can take place that may cause injury to personnel and catastrophic damage to equipment. A process used to treat pyrophoric material uses sodium nitrite injected into a gaseous carrier stream to oxidize iron sulfides to elemental sulfur and iron oxides. The sodium nitrite solution may be buffered to a pH of about 9 with disodium phosphate or monosodium phosphate. A chemical additive that provides a quantitative measure of reaction completion may be added to the treatment solution.

公开(公告)号：US09023237B2

公开(公告)日：2015-05-05

申请号：US13921600

申请日：2013-06-19

申请人： New Technology Ventures, Inc.

发明人： Floyd E. Farha ,  Veronica M. Irurzun

IPC分类号： C10G25/00 ,  C10G49/00 ,  B01D53/52 ,  C01G49/04 ,  C01G49/00

CPC分类号： C10G25/003 ,  B01D53/52 ,  B01D53/8612 ,  B01D2255/20738 ,  B01D2255/9202 ,  B01J20/0229 ,  B01J20/06 ,  B01J20/28007 ,  B01J23/745 ,  B01J35/0013 ,  B01J35/12 ,  C01G49/009 ,  C01G49/02 ,  C01G49/04 ,  C01P2004/04 ,  C01P2004/64 ,  C10L3/103 ,  C10L2290/542 ,  Y02E50/346

摘要： The invention involves the formation of a stable iron (II) oxide and/or hydroxide. Preferably these oxides and/or hydroxides are present as nanoparticles in the 5-10 nanometer range. It has been discovered that such particles can be formed at lower cost and with fewer impurities by using ferrous carbonate (FeCO3) from siderite as compared to known processes from various iron salts such as sulfates and chlorides. The novel nanoparticles are particularly adapted to removing sulfur compounds such as H2S from liquid and/or gaseous streams, such as hydrocarbon streams.

摘要翻译： 本发明涉及形成稳定的氧化铁（II）和/或氢氧化物。 优选地，这些氧化物和/或氢氧化物以5-10纳米范围内的纳米颗粒存在。 已经发现，与来自各种铁盐如硫酸盐和氯化物的已知方法相比，通过使用来自菱铁矿的碳酸亚铁（FeCO 3），可以以更低的成本和更少的杂质形成这样的颗粒。 新型纳米颗粒特别适用于从液体和/或气流如烃流中除去硫化合物如H2S。