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1. 发明申请

US20220258180A1 PROCESS OF DISPOSAL IN PILES OF TAILINGS STEMMING FROM THE IRON ORE PROCESSING METHOD 有权
公开(公告)号：US20220258180A1
公开(公告)日：2022-08-18
申请号：US17595541
申请日：2020-05-13
申请人： Vale S.A.
发明人： Nilton Carlos TORQUATO , Washington Pirete DA SILVA
IPC分类号： B03D3/06 , C02F11/121 , C02F11/14 , B09B3/70
摘要： The present invention discloses a process of disposal of tailings in piles stemming from the iron ore processing method, replacing dams, and comprising the steps of thickening the ultra-fine tailings, thickening the sandy tailings, mixing the tailings in the proportion of 80 to 90% by weight of sandy tailings and 10 to 20% by weight of ultra-fine tailings, addition of coagulant, addition of flocculant, filtering the mixture and piling the filtered tailings. Unlike traditional processes, this invention promotes an economically and technically feasible tailing disposal process that can be added to any conventional iron ore concentration plant without the need for any change in the process flowchart.

2. 发明申请

US20210309809A1 METHOD AND APPARATUS FOR SEPARATING LIGNOCELLULOSE PARTICLE FRACTION AND LIGNIN PARTICLE FRACTION, LIGNIN PARTICLE COMPOSITION, LIGNOCELLULOSE PARTICLE COMPOSITION AND THEIR USE 有权
公开(公告)号：US20210309809A1
公开(公告)日：2021-10-07
申请号：US17349071
申请日：2021-06-16
申请人： UPM-KYMMENE CORPORATION
发明人： Mauno MIETTINEN
IPC分类号： C08H8/00 , C08H7/00 , C08L97/00 , C08L97/02 , B03D1/02 , B01J20/24 , B01J20/28 , B01J20/30 , B03D3/06
摘要： The invention relates to a method and an apparatus for separating lignocellulose particle fraction (3) and lignin particle fraction (4), in which crude lignin (1) formed from starting material (6) comprises lignocellulose particles and lignin particles. According to the invention, the method comprises adding stabilizing chemical (11) and/or hydrophobic chemical (12) into the crude lignin (1) in at least one step, and treating the crude lignin by separating the lignin particle fraction (4) and lignocellulose particle fraction (3) from each other in at least one separation step (2,8,9,10). Further, the invention relates to a lignocellulose particle fraction and a lignin particle fraction and their uses.

3. 发明授权

US11027288B2 Device and method for magnetic separation 有权
公开(公告)号：US11027288B2
公开(公告)日：2021-06-08
申请号：US16331536
申请日：2017-09-11
申请人： MHD Technologies B.V.
发明人： Paulus Wolfs , Robbie Hagelstein
IPC分类号： B03C1/30 , B03C1/005 , B03C1/28 , B03D3/06
摘要： The invention relates to an apparatus for removing magnetizable particles in a substance, the apparatus comprising a magnetic separation chamber for filtering magnetizable particles and flocs from the substance, wherein the magnetic separation chamber comprises a first housing that defines a first space through which the substance can flow, as well as at least one first magnet of which a first magnetic field reaches into the first space, and which first magnet is located within a first holder that has an interface with the first space; and a flocculation chamber for inducing flocculation of the particles in a substance, the flocculation chamber being in fluid connection with the magnetic separation chamber; wherein the magnetic separation chamber is located downstream of the flocculation chamber, and wherein the flocculation of the magnetizable particles results in magnetizable flocs, and the magnetic field of the first magnet causes the magnetizable flocs to be attracted towards the first magnet, thereby removing the flocs of magnetizable particles from the substance.

4. 发明申请

US20210094831A1 CRUMPLED MESOPOROUS MXENE POWDERS SYNTHESIZED BY ACID-, BASE-, OR SALT-INDUCED CRUMPLING 有权
公开(公告)号：US20210094831A1
公开(公告)日：2021-04-01
申请号：US16954786
申请日：2018-12-17
申请人： Drexel University
发明人： Michel W. BARSOUM , Di ZHAO , Varun NATU
IPC分类号： C01B32/921 , B03D3/06
摘要： The present disclosure describes a crumpled form of MXene materials, and methods of making and using these novel compositions.

5. 发明授权

US10513451B2 Treatment of mature fine tailings in produced water by flocculation and dewatering 有权
公开(公告)号：US10513451B2
公开(公告)日：2019-12-24
申请号：US15934764
申请日：2018-03-23
申请人： BAKER HUGHES, A GE COMPANY, LLC
发明人： Christabel T. Tomla , Oleksandr V. Kuznetsov , Radhika Suresh
IPC分类号： C02F1/56 , C02F11/147 , C10G1/04 , B01D21/01 , E21B21/06 , C02F1/00 , C02F101/10 , C02F103/10 , B03D3/06
摘要： A process for drying mature fine tailings is provided. A low molecular weight anionic organic polymer is contacted with a tailings stream to flocculate mature fine tailings and enhance dewatering. The tailings stream can contain, for example, water, sand, silt and fines clays produced from a bitumen extraction process for oil sands ore. The process can also involve rigidification of the suspension.

6. 发明申请

US20190201915A1 METHOD OF PREPARING A WATER IN OIL EMULSION 审中-公开
公开(公告)号：US20190201915A1
公开(公告)日：2019-07-04
申请号：US16323621
申请日：2017-08-04
申请人： The University of Newcastle
发明人： Kevin Patrick Galvin , Kim van Netten
IPC分类号： B03D3/06 , B01F17/00
CPC分类号： B03D3/06 , B01F17/00 , B01F17/0085 , B03D2201/002 , B03D2203/02
摘要： A method of preparing a water in oil emulsion comprises forming a mixture of oil and emulsifying agent, progressively adding an aqueous salt solution to the mixture and dispersing the aqueous salt solution into the mixture. A concentrated water in oil emulsion is formed with drops of the aqueous salt solution (1) packed inside the oil solution phase (2). The emulsion is added to water and then mixed so that the emulsion absorbs the water. The salt concentration of the emulsion relative to the salt concentration of the water is controlled. Methods of agglomerating fine hydrophobic particles in a slurry using the water in oil emulsion are provided, where the emulsion is added to the slurry and then mixed so that the emulsion absorbs the water in the slurry. The salt concentration of the emulsion relative to the salt concentration of the slurry is controlled.

7. 发明授权

US09982324B2 Rare earth element compositions obtained from particulate material comprising kaolin and methods for obtaining such compositions 有权
公开(公告)号：US09982324B2
公开(公告)日：2018-05-29
申请号：US14399642
申请日：2013-03-15
申请人： IMERYS PIGMENTS, INC.
发明人： Jondahl Davis , Robert J. Pruett
IPC分类号： C22B59/00 , B03D3/06 , C01F17/00 , B01D21/01 , C04B35/50 , C22B3/22
CPC分类号： C22B59/00 , B01D21/01 , B03D3/06 , C01F17/0006 , C04B35/50 , C22B3/22 , Y10T428/2982
摘要： A method for obtaining rare earth element compositions may include providing a dispersed aqueous suspension of a particulate material including at least one rare earth element compound and kaolinite. The method may further include adding to the suspension a selective flocculation polymer that facilitates separation of at least a portion of the at least one rare earth element compound from the kaolinite by flocculating the kaolinite and allowing particles of the rare earth element compound to be or remain deflocculated. The method may also include allowing the suspension containing the polymer to separate in a selective flocculation separator into layers including a flocculated product layer and a deflocculated layer containing the portion of the at least one rare earth element compound. The method may further include extracting each of the separated layers from the separator. The rare earth element compound may include La2O3, CeO2, Nd2O3, or Y2O3.

8. 发明授权

US09956563B1 Separation of clean water from effluent streams 有权
公开(公告)号：US09956563B1
公开(公告)日：2018-05-01
申请号：US15789996
申请日：2017-10-21
申请人： Aicardo Roa-Espinosa , Samuel William Roa-Lauby , Kim Huong Pham , Joaquin Camilo Perez-Mahecha
发明人： Aicardo Roa-Espinosa , Samuel William Roa-Lauby , Kim Huong Pham , Joaquin Camilo Perez-Mahecha
IPC分类号： B01D61/02 , B01D17/04 , C02F1/52 , B01D21/01 , C02F9/00 , B03D1/00 , B03D1/14 , C02F1/44 , B03D1/016 , B03D3/06 , B01D21/02 , B01F17/00 , C02F1/56 , C02F11/12 , B01D61/04 , B01D61/00 , B01D21/00 , C02F1/00 , B03D3/00 , B01D37/00 , B03B5/60 , B03B5/64 , B01D33/64
CPC分类号： B03D1/016 , B01D17/047 , B01D21/00 , B01D21/01 , B01D21/02 , B01D33/64 , B01D61/025 , B01D61/04 , B01D2201/14 , B01D2311/2642 , B01F17/0028 , B03D3/06 , B03D2201/00 , B03D2201/002 , B03D2201/007 , C02F1/441 , C02F1/56 , C02F11/125
摘要： A process for separating clean water which has an impurities content of less than 100 ppm from waste materials such as farm manure is disclosed. In a first step, a plate separator splits the waste material stream into a first effluent fraction and a first solids fraction. The first solids fraction then undergoes two stages of pressing to increase the solids contents to about 30 to 40 percent which makes it suitable for granulation or pelletizing. The first effluent fraction is treated in successive stages with various chemical agents resulting in the removal of most of the solids and inorganic impurities from the effluent to achieve drinkable water purity.

9. 发明授权

US09914136B2 Process for reducing soluble organic content in produced waters associated with the recovery of oil and gas 有权
公开(公告)号：US09914136B2
公开(公告)日：2018-03-13
申请号：US14416772
申请日：2013-07-22
申请人： AQUERO COMPANY, LLC , 1257 122 ALBERTA LTD.
发明人： Timothy J. Webber , T. Daniel Sikes , C. Steven Sikes
IPC分类号： B01D17/04 , B01D21/01 , B03D3/00 , C02F1/52 , C02F1/24 , B03D1/00 , B01D29/00 , B03D1/14 , B01D21/02 , B03D1/016 , B03D3/02 , B03D3/06 , C02F1/66 , C02F1/56 , C02F9/00 , C02F1/00 , B01D35/00 , B01D37/00 , C02F1/40 , B01D21/00 , C02F101/32 , C02F103/10 , C02F103/36
CPC分类号： B03D1/1443 , B01D17/047 , B01D21/01 , B01D21/02 , B01D25/04 , B01D29/0018 , B03D1/016 , B03D3/02 , B03D3/06 , C02F1/24 , C02F1/5281 , C02F1/56 , C02F1/66 , C02F9/00 , C02F2101/325 , C02F2103/10 , C02F2103/365 , C02F2201/003
摘要： A chemical treatment process and separation module are described for removal of soluble organic compounds and suspended or emulsified oils and/or solids from produced waters that accompany operations for oil and gas recovery. The process occurs in its entirety within an interval of several minutes. The solubility of organic compounds is first reduced, in an optional step, by pH reduction, followed by treatment with coagulants and flocculants, the latter in conjunction with microbubble flotation. The organic compounds that are rendered insoluble, along with other oily solids, are captured in the floe created by the coagulant and flocculant treatment, and simultaneously made buoyant by the concurrent addition of microbubbles. The water and floe is passed over an array of sloped strainers that separates and diverts the floe from the effluent water, which contains significantly reduced soluble organic content. The separated stream of oily solids can be dewatered for disposal as waste.

10. 发明申请

US20170276661A1 PORTABLE TEST-DEVICE FOR SELECTIVE FLOCCULATION 审中-公开
公开(公告)号：US20170276661A1
公开(公告)日：2017-09-28
申请号：US15467911
申请日：2017-03-23
申请人： Tata Consultancy Services Limited
发明人： VENUGOPAL TAMMISHETTI , Dharmendr Kumar , Beena Rai , Pradip
IPC分类号： G01N33/24 , B01F13/10 , B03D3/06 , B01F5/06
CPC分类号： G01N33/24 , B01F5/0602 , B01F13/1016 , B01F2215/0083 , B03D3/06 , B03D2201/002 , B03D2201/007
摘要： This disclosure relates generally to selective flocculation, and more particularly to portable test-device for performing selective flocculation experiments in continuous mode. The test-device includes a slurry inflow system, a flocculant tank, a static mixer, a control pumping system, and a thickener system. The static mixer is connected to the slurry inflow system and the flocculant tank, to receive and mix flocculant solution and slurry and cause formation of floc. The control pumping system connects the flocculant tank and the slurry inflow system to the static mixer to control the control parameters responsible for pumping the slurry and flocculant solution in the continuous mode in the static mixer. The thickener system comprises a thickener tank to receive treated slurry and the floc from the static mixer, separately collect tailings and the floc from the thickening tank. The components of the portable test-device are removably connected to each other.

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