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公开(公告)号：US20240270588A1
公开(公告)日：2024-08-15
申请号：US18562809
申请日：2022-05-24
申请人： Cinis Fertilizer AB
发明人： Jakob Liedberg
摘要： The present invention relates to a method for producing a potassium sulfate containing fertilizer composition from a sodium sulfate containing residue process stream of a battery manufacturing facility, battery recycling facility, or steel production plant, wherein residue process stream from a battery manufacturing facility, battery recycling facility, or steel production plant is provided; optionally water is provided; potassium chloride is provided; and a reaction mixture is provided comprising said optional water, potassium chloride and residue process stream, and is allowed to react, wherein potassium sulfate is obtained.
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公开(公告)号：US20240258597A1
公开(公告)日：2024-08-01
申请号：US18561016
申请日：2022-05-24
申请人： Umicore
发明人： Lennart SCHEUNIS
CPC分类号： H01M10/54 , C22B7/004 , C22B7/04 , C22B23/021 , C22B23/06
摘要： The present disclosure concerns a 2-step smelting process, for recovering of Ni and Co from batteries and other sources.
The process comprises the steps of:
defining an oxidizing level Ox, and a battery-bearing metallurgical charge;
oxidizing smelting of the metallurgical charge by injecting an O2-bearing gas into the melt to reach the defined oxidizing level Ox; and,
reducing smelting of the obtained slag using a heat source and a reducing agent.
The process is more energy-efficient than a single-step reducing smelting process and provides for a higher purity alloy and for a cleaner final slag.-
公开(公告)号：US20240182304A1
公开(公告)日：2024-06-06
申请号：US18074501
申请日：2022-12-04
IPC分类号： C01B25/37 , B01J20/06 , C01B25/30 , C01B25/36 , C22B7/04 , C22B21/00 , C22B21/04 , C22B26/12 , H01M10/54
CPC分类号： C01B25/375 , B01J20/06 , C01B25/303 , C01B25/36 , C22B7/04 , C22B21/0023 , C22B21/04 , C22B26/12 , H01M10/54
摘要： This method recycles iron phosphate slag, which is produced as waste during lithium iron phosphate battery recycling processes that contain leaching or crushing for the sole extraction of lithium. This method extracts aluminum phosphate, iron phosphate, and lithium phosphate from the waste slag. The recycling process comprises these steps: (a) extraction of aluminum phosphate through addition of sodium hydroxide; (b) removal of carbon additives, graphite and other organic compounds through solvation of solely lithium, iron, and phosphate compounds through addition of sulfuric acid; (c) precipitation of iron phosphate by addition of hydrogen peroxide; (d) extraction of lithium phosphate from the mother liquor; (e) recycling of mother liquor into water and sodium sulfate. This process wastes few chemicals while still having a high reclamation efficiency in terms of purity and quantity. Furthermore, due to its relatively low costs, the profit margin of this process is very good.
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公开(公告)号：US11859906B2
公开(公告)日：2024-01-02
申请号：US16947617
申请日：2020-08-10
申请人： ALTEK EUROPE LIMITED
发明人： Alan Peel , Andrew Gibbs
CPC分类号： F27D99/00 , C22B7/004 , C22B7/04 , C22B21/0069 , Y02P10/20
摘要： A compressing element, devices for using such a compressing element and methods of use are provided, in which the compressing element has: a upper surface provided with an inlet and an outlet; a lower surface; an at least partially hollow interior provided between the upper surface and the lower surface, the hollow interior being connected to the inlet and the outlet; the hollow interior being provided with: one or more fluid flow constraining surfaces provided by one or more walls of the follow interior; and one or more fluid flow control elements provided in the hollow interior, the one or more fluid flow control elements being additional to the one or more fluid flow constraining surfaces provided by the one or more walls of the hollow interior. The arrangement of inlet, outlet, fluid flow constraining surfaces and fluid control elements provides for improved cooling of the compressing element, for instance when used to press molten metal processing by-products to extract molten metal.
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公开(公告)号：US20230392230A1
公开(公告)日：2023-12-07
申请号：US17796951
申请日：2021-01-28
申请人： SMS GROUP GMBH
IPC分类号： C22B7/04
CPC分类号： C22B7/04 , C21B2400/026 , C21B2400/062 , C21B2400/08
摘要： The invention relates to a method for the granulation of a metallurgical slag, wherein liquid slag (1) is atomized by blowing air (2) onto it and the slag particles (3) granulated in this way are collected. In order to ensure a high quality of the granulate and operate in the most energy-efficient manner possible, the invention provides that the atomization is done by blowing heated air jet (2) free from the addition of water onto the liquid slag (1) and the slag is supplied to a working chamber (4), wherein the granulated slag particles (3) are collected in the floor region of the working chamber (4), wherein the air (5) escaping from the working chamber (4) is either supplied to a heat exchanger (6), which preheats the air jet blown onto the liquid slag (1), or directly recirculated in order to atomize the liquid slag (1).
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6.发明申请公开(公告)号：US20190241994A1
公开(公告)日：2019-08-08
申请号：US16320000
申请日：2018-05-21
发明人： Zhi he DOU , Ting an ZHANG , Yan LIU , Guo zhi LV , Qiu yue ZHAO , Li ping NIU , Da xue FU , Wei guang ZHANG
CPC分类号： C22B34/1277 , C22B7/04 , C22B9/10 , C22B34/1295 , C22C1/02 , C22C1/06 , C22C14/00
摘要： The invention relates to a method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining, and belongs to the technical field of titanium-aluminum alloys. The method comprises the following steps of pre-treating raw materials, weighing the raw materials in the mass ratio of rutile or high-titanium slags or titanium dioxide to aluminum powder to V2O5 powder to CaO to KClO3 being 1.0:(0.60-0.24):(0.042-0.048):(0.12-0.26):(0.22-0.30), performing an aluminothermic self-propagating reaction in a gradient feeding manner to obtain high-temperature melt, performing a gradient reduction melting, performing heat insulation and separating the melt after the feeding is completed, then adding CaF2—CaO—TiO2—V2O5 based refining slags into the high-temperature melt, performing slag washing refining, and finally removing slags to obtain titanium alloys. This method has the advantages including short flow, low energy consumption, easy operation, easy control on Al and V contained in alloys, and so on.
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公开(公告)号：US09982323B2
公开(公告)日：2018-05-29
申请号：US14420634
申请日：2013-08-06
发明人： Paul Voigt
CPC分类号： C22B19/34 , B01D53/507 , B01D53/508 , B01D53/80 , B01D2257/302 , C22B7/007 , C22B7/04 , C22B19/22 , C22B19/30 , Y02P10/234
摘要： A method for recovering zinc from slag derived from lead smelting comprises subjecting the slag to a leaching step under conditions in which zinc is dissolved into solution and silica present in the slag dissolves and re-precipitates in a form that is readily separable from liquid, and recovering zinc from the solution. The slag may be subjected to leaching in at least two stages in which in a first leaching stage only part of the zinc is removed from the slag and further zinc leaching from the slag occurs in a second stage to form a pregnant leaching solution and recovering zinc from the solution. The method may be used to remove SO2 from a gas stream by using the SO2-containing gas stream to leach a slurry of the slag.
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公开(公告)号：US20180030575A1
公开(公告)日：2018-02-01
申请号：US15320697
申请日：2015-09-17
发明人： Guo CHEN , Jin CHEN , Jinhui PENG , Libo ZHANG , Shenghui GUO , Junwen ZHOU
IPC分类号： C22B34/12
CPC分类号： C22B34/124 , B09B3/0083 , C01G23/08 , C22B7/04 , C22B34/1209 , C22B34/1222 , C22B34/1227 , C22B34/1245 , C22B34/125 , C22B34/1259
摘要： Provided is a method for preparing rutile from acid-soluble titanium slag, including: grinding acid-soluble titanium slag; adding a sodium carbonate modifier, and performing microwave irradiation treatment in a microwave device; adding an ammonium bifluoride additive; and performing acid purification and calcination to obtain rutile. By means of a microwave heating mode, the equipment investment needed by the method is low, and the energy consumption is low. The purity of artificial rutile is more than 91%, byproducts are fewer, and the environmental pollution is low.
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公开(公告)号：US20170240432A1
公开(公告)日：2017-08-24
申请号：US15435801
申请日：2017-02-17
发明人： Kwang Deog JUNG , Heung Yong HA , Jun Woo OH , Ho Yong JO
CPC分类号： C01F11/181 , C01P2002/72 , C01P2004/03 , C01P2004/51 , C01P2004/62 , C01P2004/64 , C01P2006/80 , C21B15/00 , C22B7/007 , C22B7/04 , Y02P10/234
摘要： The present invention relates to a method and a process of preparing precipitated calcium carbonate of high purity by extracting calcium ion contained in an alkali ion-containing inorganic material such as mineral, steelmaking slag and waste concrete with the use of an acidic aqueous solution, separating other metal ions from the extracted solution, preparing an alkaline earth metal hydroxide using an alkaline aqueous solution and then contacting the same with carbon dioxide.
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公开(公告)号：US09695485B2
公开(公告)日：2017-07-04
申请号：US14419167
申请日：2012-09-06
CPC分类号： C21C5/36 , C04B5/06 , C04B7/147 , C21B3/08 , C22B7/04 , Y02P10/216 , Y02P40/143
摘要： The invention relates to a method for processing steel slag to produce a hydraulic mineral binder with a high hardening potential and to recover iron. There is provision for this purpose to provide a feed product comprising steel slag with MnO. This feed product is further processed as a melt by introducing reducing agent into the melt. A lime saturation factor of between 90 and 110 is hereby to be achieved in the mineral melt portion. Subsequently the melt is cooled in a defined manner and elementary iron is mechanically separated from the solidified melt. The solidified melt is then supplied for use as hydraulic mineral binder. Furthermore the invention relates to a hydraulic mineral binder.
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