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公开(公告)号：US11008216B2
公开(公告)日：2021-05-18
申请号：US16074645
申请日：2017-02-01
发明人： Masakazu Enomura , Daisuke Honda
摘要： A method for modifying a fine particle dispersion liquid has excellent dispersibility and dispersion stability. In this method for modifying a fine particle dispersion liquid having improved fine particle dispersibility, impurities included in an agglomeration of fine particles contained in the fine particle dispersion liquid are released into the dispersion liquid by applying physical energy to the agglomeration and performing dispersion processing for dispersion into particles that are smaller than the agglomeration of fine particles. The impurities are removed from the dispersion liquid by means of a removal unit provided with a filtration membrane before reagglomeration is caused by the impurities.
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公开(公告)号：US10722860B2
公开(公告)日：2020-07-28
申请号：US16426760
申请日：2019-05-30
发明人： Edward Lester , Thomas Huddle
IPC分类号： B01J3/00 , B01J19/24 , B01J19/26 , B01J19/00 , B01F5/04 , B01F5/06 , B01J4/00 , B01F15/06 , B01J3/04 , C01G49/06 , B01F3/00
摘要： A mixing reactor for precipitating nanoparticles by mixing a precursor fluid with a second fluid at a higher temperature than the precursor fluid. The reactor comprises: a first fluid conduit with an inlet region configured to receive a flow of the precursor fluid, and an outlet region configured to output a mixed flow; and a second fluid conduit configured to receive a flow of the second fluid. The second fluid conduit extends into the first fluid conduit in a direction substantially perpendicular to the flow within the first fluid conduit, and has an opening for introducing the second fluid into the first fluid conduit. Related processes for producing nanoparticles are disclosed.
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公开(公告)号：US10703643B2
公开(公告)日：2020-07-07
申请号：US15857861
申请日：2017-12-29
申请人： FUJIFILM Corporation
发明人： Takao Mizoguchi , Takashi Fujimoto
摘要： The ε-iron oxide type ferromagnetic powder contains Fe, a metal element selected from the group consisting of monovalent metal elements and divalent metal elements at a content rate within a range of 0.2 to 16.5 at % with respect to 100.0 at % of Fe, and a pentavalent metal element at a content rate within a range of 0.2 to 7.5 at % with respect to 100.0 at % of Fe, in which a total content rate of metal elements other than Fe is within a range of 2.5 to 24.0 at % with respect to 100.0 at % of Fe.
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14.发明授权公开(公告)号：US10669161B2
公开(公告)日：2020-06-02
申请号：US15544147
申请日：2016-01-18
发明人： Shin-ichi Ohkoshi , Hiroko Tokoro , Koji Nakabayashi , Asuka Namai , Kenta Imoto , Kenji Masada
摘要： There are provided an oriented body such as a magnetic sheet in which a value of degree of orientation of magnetic particles is beyond 3.5, and a method for producing the same, and a device for producing the same, wherein the oriented body such as a magnetic sheet is produced through the steps of: mixing a mixed solution containing a solvent and a vehicle and ε-iron oxide particles by shaking stirring, and dispersing the ε-iron oxide particles in the mixed solution; providing a mixed solution in which the ε-iron oxide particles are dispersed, on a predetermined substrate; and removing the solvent while applying a magnetic field to the substrate provided with the mixed solution, to obtain an oriented body.
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公开(公告)号：US20200157653A1
公开(公告)日：2020-05-21
申请号：US16615205
申请日：2018-05-22
发明人： Nageh K. Allam , Mahmoud M. Aly
摘要： A method of extraction of pure iron (III) oxide from bulk iron ore is provided that includes crushing and grinding, using a crushing machine, raw hematite ore, where a milled ore is formed, water-washing the milled ore by rinsing under continuous stirring conditions, dilute acid-washing the milled ore with diluted hydrochloric acid under continuous stirring conditions, immersing the dilute acid-washed milled ore in concentrated acid under the continuous stirring conditions, and applying heat, treating the heated and immersed milled ore with an alkali to form a precipitate, washing with water the precipitate to purify the precipitate, and drying the purified precipitate, and igniting the purified dry precipitate to extract a pure iron (III) oxide from a bulk iron ore.
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16.发明授权公开(公告)号：US10570017B2
公开(公告)日：2020-02-25
申请号：US15838852
申请日：2017-12-12
发明人： Ka Wai Hui
IPC分类号： C01B32/366 , C01B32/15 , H01M4/38 , H01M4/48 , C01G49/06
摘要： A yolk-shell-structured material (16, 59, 59a, 74) is disclosed as including a plurality of silicon nano-particles (12, 54, 54a, 62) and a cavity (16, 60, 80, 84) enclosed by a micron-sized shell (18, 72) made of carbon nano-particles (14, 56, 58). A method of forming a yolk-shell-structured material with silicon nano-particles (12) and a cavity (16) enclosed by a micron-sized shell (18) made of carbon nano-particles (14) is disclosed as including (a) providing a micron-sized cornstarch core (10), (b) forming a layer of nano silicon-particle (12) on the cornstarch core (10), (c) forming a micron-sized shell (18) of carbon nano-particles (14) on the layer of nano silicon-particle (12), and (d) removing the cornstarch core (10) by heating.
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公开(公告)号：US10548874B2
公开(公告)日：2020-02-04
申请号：US14200292
申请日：2014-03-07
发明人： Susanne Wagner , Matthias Taupitz , Eyk Schellenberger , Jorg Schnorr , Monika Ebert , Gesche Genter , Harald Kratz
IPC分类号： C01G49/02 , A61K9/51 , B82Y30/00 , C01G49/06 , A61K45/06 , A61K31/375 , A61K33/26 , A61K9/50
摘要： The present invention relates to a phosphate adsorbent on the basis of maghemite or maghemite/magnetite comprising (i) an iron oxide core comprising a crystal structure of inverse spinel iron oxide, (ii) a coating selected from monomeric carbohydrates, in particular monosaccharides or disaccharides, alditols, or mixtures thereof, and/or (iii) a pharmaceutical excipient selected from polymeric carbohydrates, wherein the phosphate adsorbent has the form of nanoparticles with a particle size of the iron oxide core (i) of less than 20 nm. The present invention further relates to a method for the production of a phosphate adsorbent on the basis of maghemite or maghemite/magnetite, to pharmaceutical compositions comprising the phosphate adsorbent, and to medical uses thereof, especially for the prevention and/or treatment of hyperphosphatemia.
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公开(公告)号：US10457565B2
公开(公告)日：2019-10-29
申请号：US15724624
申请日：2017-10-04
发明人： Hideki Sasaki , Hiroyuki Mitsui , Yasumasa Kan
摘要： Provided is a production method for refining iron oxide (hematite), which has such a low sulfur content as to be used as a raw material for ironmaking from a leach residue containing iron oxide, the leach residue being produced by a high pressure acid leach (HPAL) process and being a raw material that can be cheaply and stably procured. In the method of producing (high purity) hematite for ironmaking by a process of adding an oxidant and sulfuric acid to nickel oxide ore and then leaching nickel, a leach residue obtained after the leaching of nickel is heated to 600° C. or more, and preferably 800° C. or more and 1400° C. or less.
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19.发明申请公开(公告)号：US20190210104A1
公开(公告)日：2019-07-11
申请号：US16316060
申请日：2017-07-10
发明人： Hidenori YAMAJI , Masahiro GOTOH
CPC分类号： B22F1/0007 , B22F1/00 , B22F1/02 , B22F3/00 , B22F9/04 , B22F9/22 , B22F2009/044 , B22F2301/35 , B22F2302/256 , C01G49/06 , C01P2004/54 , C01P2006/20 , C01P2006/42 , C22C38/00 , H01F1/20 , H01F1/24
摘要： An iron powder and method of making an iron powder. The method includes a step of neutralizing an acidic aqueous solution containing a trivalent iron ion and a phosphorus-containing ion, with an alkali aqueous solution, so as to provide a slurry of a precipitate of a hydrated oxide, or a step of adding a phosphorus-containing ion to a slurry containing a precipitate of a hydrated oxide obtained by neutralizing an acidic aqueous solution containing a trivalent iron ion with an alkali aqueous solution. A silane compound is added to the slurry so as to coat a hydrolysate of the silane compound on the precipitate of the hydrated oxide. The precipitate of the hydrated oxide after coating is recovered through solid-liquid separation, the recovered precipitate is heated to provide iron particles coated with a silicon oxide, and a part or the whole of the silicon oxide coating is dissolved and removed.
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公开(公告)号：US20190143289A1
公开(公告)日：2019-05-16
申请号：US16098417
申请日：2017-05-03
申请人： nFluids Inc.
发明人： Maen HUSEIN , Alexey BORISOV
摘要： A method for preparing concentrated and stable nanoparticle organosols using phase transfer is disclosed. The method includes transferring nanoparticles from a hydrosol into a hydrocarbon carrier with the aid of a transfer agent. The transfer agent can be added before, during or after the reaction of nanoparticle preparation and can be added to the aqueous or the organic carrier. The nanoparticles may be prepared in situ, pre-prepared in-house or commercially available. At the optimum values of the different parameters; namely precursor concentrations, amount of transfer agent and concentration of nanoparticles in the organosol, complete transfer of the nanoparticles may be achieved. The approach employs room temperature, moderate mixing and minimum number and quantity of chemicals relative to prior art. The nanoparticles may be used in fluids used in oil and gas recovery including drilling, completion, and stimulation fluids.
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