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公开(公告)号：US12037256B2
公开(公告)日：2024-07-16
申请号：US18507950
申请日：2023-11-13
Applicant: SHANXI UNIVERSITY
Inventor： Huaigang Cheng , Fangqin Cheng , Yanjie Huang , Hongzhou Lv
IPC: C01F5/40
CPC classification number: C01F5/40 , C01P2004/12 , C01P2004/61
Abstract: A device for creating hollow tubes of crystalline magnesium sulphate sized a micron pertains to the production technology for inorganic micron-scale materials. The device consist of two halogenation tanks, a solar collector, a temperature-controlled crystallization chamber, a centrifuge, a conveyor belt, and a dryer. The solar collector is connected to a heat pipe at the bottom of a brine pool to form a circulation path. Said method is to convert high magnesium brine into saturated brine with a Mg2+:Na+ mass ratio between (8˜15):1 by a brine blending operation at a temperature of 60° C.˜90° C. it is controlled to be cooled and crystallized at a cooling rate of 0.6˜2.0° C./min, solid-liquid centrifugal separation is carried out when it is cooled down to 40˜48.5° C., and the solid phase is dried at a temperature of 48.5˜70° C., and finally micron-sized crystalline magnesium sulfate hollow tubes are obtained.
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2.发明公开
公开(公告)号：US20240149091A1
公开(公告)日：2024-05-09
申请号：US18404387
申请日：2024-01-04
Applicant: FRS Group, LLC
Inventor： Dennis Hulbert , Robert J. Burnham , Michael S. Schnarr , Gerald Geissler , David W. Wilkening , Joseph McLellan , Michael White
CPC classification number: A62D1/005 , A62C3/02 , A62D1/0007 , A62D1/0035 , C01F5/40
Abstract: A forest fire retardant composition contains a retardant compound that includes a phosphate salt. The phosphate salt may include diammonium phosphate, diammonium orthophosphate, monoammonium phosphate, monoammonium orthophosphate, monosodium phosphate, disodium phosphate, disodium phosphate hydrate, sodium ammonium phosphate, sodium ammonium phosphate hydrate, sodium tripolyphosphate, trisodium phosphate, or dipotassium phosphate, and combinations thereof. The forest fire retardant composition may include an ammonium source. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
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公开(公告)号：US11883703B2
公开(公告)日：2024-01-30
申请号：US18182198
申请日：2023-03-10
Applicant: FRS Group, LLC
Inventor： Dennis Hulbert , Robert J. Burnham , Michael S. Schnarr , Gerald Geissler , David W. Wilkening , Joseph McLellan
CPC classification number: A62D1/005 , A62C3/02 , A62D1/0007 , A62D1/0035 , C01F5/40
Abstract: A forest fire retardant composition contains a retardant compound that includes a halide salt, a non-halide salt, a metal oxide, a metal hydroxide, a sulfate salt, or combinations thereof. The forest fire retardant composition may include at least one anhydrous salt and at least one hydrate salt. The sulfate salt may be magnesium sulfate. The magnesium sulfate hydrate has a formula MgSO4(H2O)x, where x is about 1 to about 11. For example, x may be equal to at least one of 1, 2, 3, 4, 5, 6, 7, 9, 10 or 11. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
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公开(公告)号：US11865392B2
公开(公告)日：2024-01-09
申请号：US18299525
申请日：2023-04-12
Applicant: FRS Group, LLC
Inventor： Dennis Hulbert , Robert J. Burnham , Michael S. Schnarr , Gerald Geissler , David W. Wilkening , Joseph McLellan , Michael White
CPC classification number: A62D1/005 , A62C3/02 , A62D1/0007 , A62D1/0035 , C01F5/40
Abstract: A forest fire retardant composition contains a retardant compound that includes a phosphate salt. The phosphate salt may include diammonium phosphate, diammonium orthophosphate, monoammonium phosphate, monoammonium orthophosphate, monosodium phosphate, disodium phosphate, disodium phosphate hydrate, sodium ammonium phosphate, sodium ammonium phosphate hydrate, sodium tripolyphosphate, trisodium phosphate, or dipotassium phosphate, and combinations thereof. The forest fire retardant composition may include an ammonium source. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
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5.发明申请
公开(公告)号：US20190194524A1
公开(公告)日：2019-06-27
申请号：US15855438
申请日：2017-12-27
Applicant: Saudi Arabian Oil Company
Inventor： Subhash AYIRALA , Abdulkareem M. AL-SOFI , Jinxun WANG , Ali Abdallah AL-YOUSEF
IPC: C09K8/588 , C09K8/584 , C09K8/04 , C08F220/38 , C08F220/56 , C01D3/04 , C01D5/10 , C01F5/30 , C01F5/40 , C02F1/68
CPC classification number: C09K8/588 , C01D3/04 , C01D5/10 , C01F5/30 , C01F5/40 , C02F1/68 , C02F2103/08 , C08F220/38 , C08F220/56 , C08F2220/382 , C09K8/04 , C09K8/584 , E21B43/20
Abstract: A composition for use in surfactant polymer flooding processes in a carbonate reservoir, the composition comprising a surfactant, the surfactant operable to reduce interfacial tension, a polymer, the polymer operable to increase the viscosity of the composition, and a tailored water, the tailored water operable to alter a wettability of the in-situ rock, where the tailored water has a total dissolved solids of between 5,000 wt ppm and 7,000 wt ppm, where the total dissolved solids comprises a salt, where the composition has a viscosity between 3 cP and 100 cP.
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6.发明申请
公开(公告)号：US20180111839A1
公开(公告)日：2018-04-26
申请号：US15569207
申请日：2016-05-04
Applicant: Yara Dallol BV
Inventor： Richard W. CHASTAIN , Ingrid T. BUCKHURST , Antoine LEFAIVRE , Thomas H. NEUMAN
Abstract: There are provided methods for the production of potassium sulphate. The methods comprise contacting an aqueous potassium- and sulphate-containing composition with magnesium chloride (MgCl2), thereby obtaining a composition comprising kainite; optionally concentrating the kainite from the composition; reacting the kainite with magnesium sulphate (MgSO4) and potassium sulphate (K2SO4) so as to convert the kainite into leonite (K2SO4.MgSO4.4H2O); optionally contacting the leonite with water to remove excess MgSO4; and contacting the leonite with water so as to leach the MgSO4, contained in the leonite, and to at least substantially selectively precipitate potassium sulphate (K2SO4). The method according to the invention can be operated at higher temperatures, in particular at temperatures above 35° C. and does not require a cooling step at 20 to 25° C. The method produces potassium sulphate with a low amount of chloride.
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公开(公告)号：US20180002187A1
公开(公告)日：2018-01-04
申请号：US15543594
申请日：2016-01-14
Applicant: Imerys USA, Inc
Inventor： Christopher PAYNTER , Kalena STOVALL , Douglas WICKS , Gavin BUTLER-LEE , Parvin Golbayani , Nigel Victor JARVIS , Graham M. PRING , David TAYLOR , Ricario M. PEREZ
CPC classification number: C01F11/18 , B01D53/501 , B01D53/502 , B01D2251/404 , B01D2251/606 , C01F5/24 , C01F5/40 , C01F11/181 , C01F11/182 , C01F11/183 , C01F11/185 , C01F11/464 , C01F11/468 , C01P2002/76 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/60 , C01P2006/80 , C04B14/28 , C08K3/26 , C08K2003/265 , C09C1/021 , D21H17/67 , D21H17/675
Abstract: A process for treating a sulfurous fluid to form gypsum and magnesium carbonate, whereby the sulfurous fluid is scrubbed with a sequestrating agent to yield a scrubbed fluid, gypsum and magnesium sulfate. The flue gas desulfurized gypsum is isolated from the magnesium sulfate solution by filtration or centrifugation. The magnesium sulfate is reacted with a carbonate salt to produce a magnesium carbonate whereby the reaction conditions are controlled to control the properties of the magnesium carbonate produced.
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8.发明申请
公开(公告)号：US20170355609A1
公开(公告)日：2017-12-14
申请号：US15527050
申请日：2015-11-18
Applicant: ALLIANCE MAGNÉSIUM
Inventor： Joël FOURNIER , Laury GAUTHIER
CPC classification number: C01F5/12 , C01B7/035 , C01B17/50 , C01B17/74 , C01B33/12 , C01F5/30 , C01F5/40 , C01G49/02 , C01G53/003 , C01G53/04 , C22B3/10 , C22B3/22 , C22B3/44 , C22B26/22 , C25C3/04 , Y02P10/234
Abstract: The present description relates to a process for extracting magnesium compounds from magnesium-bearing ores comprising leaching serpentine tailing with dilute HCl to dissolve the magnesium and other elements like iron and nickel. The resudial silica is removed and the rich solution is further neutralized to eliminate impurities and recover nickel. Magnesium chloride is transformed in magnesium sulfate and hydrochloric acid by reaction with sulfuric acid. The magnesium sulfate can be further decomposed in magnesium oxyde and sulphur dioxyde by calcination. The sulphur gas can further be converted into sulfuric acid.
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公开(公告)号：US20170266100A1
公开(公告)日：2017-09-21
申请号：US15615085
申请日：2017-06-06
Applicant: Henkel AG & Co. KGaA
Inventor： Thorsten Knappe , Rolf Bayersdoerfer , Thomas Foerster
CPC classification number: A61K8/86 , A61K8/046 , A61K8/20 , A61K8/34 , A61K8/463 , A61K2800/87 , A61Q5/06 , C01D3/04 , C01F5/30 , C01F5/40
Abstract: The invention relates to a cosmetic product, comprising a) a cosmetic preparation, including, in relation to its total weight, a1) 65 to 96 wt % of at least one polar solvent; a2) 0.1 to 34 wt % of at least one inorganic salt; b) a device for flash evaporation of the cosmetic preparation a), and to a method using corresponding products and to the use of the cosmetic preparation a) as process material in a device for flash evaporation.
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公开(公告)号：US20140348732A1
公开(公告)日：2014-11-27
申请号：US14365842
申请日：2012-12-14
Applicant: SUMITOMO METAL MINING CO., LTD.
Inventor： Yoshitomo Ozaki , Jun-ichi Takahashi , Yu Yamashita , Hideki Ohara
IPC: C22B3/00
CPC classification number: C22B23/043 , C01B17/501 , C01F5/12 , C01F5/40 , C01F11/46 , C01P2002/72 , C01P2004/03
Abstract: It is an object to provide a method for producing magnesium oxide by which magnesium oxide being high in purity and low in impurity content can be produced simply and efficiently from a sulfuric acid solution containing magnesium and calcium such as waste water. In the present invention, calcium is precipitated as calcium sulfate and separated by concentrating a sulfuric acid solution containing magnesium and calcium, and magnesium is precipitated as magnesium sulfate and separated by further concentrating the solution resulting from the separation of calcium. The separated magnesium sulfate is roasted together with a reductant, so that magnesium oxide and sulfur dioxide are obtained. The resulting magnesium oxide is washed to produce magnesium oxide with high purity.
Abstract translation: 本发明的目的是提供一种生产氧化镁的方法，通过该方法可以从含有镁和钙的硫酸溶液如废水中简单有效地制备纯度高，杂质含量低的氧化镁。 在本发明中，作为硫酸钙析出钙，通过浓缩含有镁和钙的硫酸溶液进行分离，镁以硫酸镁的形式析出，并通过进一步浓缩由钙分离得到的溶液进行分离。 将分离的硫酸镁与还原剂一起焙烧，得到氧化镁和二氧化硫。 将所得的氧化镁洗涤以产生高纯度的氧化镁。
