专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20240270591A1 LITHIUM RECOVERY AND PURIFICATION 审中-公开
公开(公告)号：US20240270591A1
公开(公告)日：2024-08-15
申请号：US18569039
申请日：2021-06-11
申请人： XPS EXPERT PROCESS SOLUTIONS - GLENCORE CANADA CORPORATION , AG HYDROMETALLURGY SERVICES INC. , FRONTIER LITHIUM INC.
发明人： Ahmad GHAHREMAN , Gregg HILL , Mika MUINONEN
IPC分类号： C01D15/04 , C01F11/46 , C22B7/00 , H01M10/54
CPC分类号： C01D15/04 , C01F11/462 , C22B7/007 , H01M10/54
摘要： A process for recovering lithium chloride from a lithium sulfate (Li2SO4)-containing mixture is described, comprising a step of sulfate removal using barium chloride (BaCl2). In embodiments, the process may further comprise one or more steps to reduce the level of one or more metals other than lithium and to reduce the level of sulfate by increasing the pH of the (Li2SO4)-containing mixture, e.g., using a calcium salt. In embodiments, treatments to reduce the level of one or more metals other than lithium, sulfate, and other components (e.g., calcium if used) may be used, producing a solution substantially comprising Li2SO4 for barium chloride (BaCl2) treatment, to form a precipitate comprising barium sulfate (BaSO4) and a solution substantially comprising lithium chloride.

2. 发明公开

US20240190731A1 Method of Refining and Recovering Barium Sulfate from Contaminated Water Sources 审中-公开
公开(公告)号：US20240190731A1
公开(公告)日：2024-06-13
申请号：US18581673
申请日：2024-02-20
申请人： Chad Daloia
发明人： Chad Daloia
IPC分类号： C02F1/52 , C01F11/46 , C02F1/66 , C02F101/10 , C02F103/10
CPC分类号： C02F1/5236 , C01F11/462 , C01P2004/61 , C01P2006/10 , C02F1/66 , C02F2101/101 , C02F2103/10
摘要： A method is provided for recovering barium sulfate from a contaminated water source comprising barium cation. The method involves combining the contaminated water source with a source of sulfate ion, thereby forming a modified contaminated water source. The method includes forming precipitated barium sulfate within the modified contaminated water source; isolating precipitated barium sulfate from the modified contaminated water source, thereby forming isolated precipitated barium sulfate; dewatering the isolated precipitated barium sulfate, thereby forming a low-moisture precipitated barium sulfate; combining the low-moisture precipitated barium sulfate with clean water to form a slurry comprising precipitated barium sulfate; subjecting the slurry to density separation to form a refined barium sulfate; and subjecting the refined barium sulfate to particle size reduction and/or particle size classification to yield a recovered barium sulfate.

3. 发明授权

US12000788B1 Inline detection of gypsum panel calcination 有权
公开(公告)号：US12000788B1
公开(公告)日：2024-06-04
申请号：US17145519
申请日：2021-01-11
申请人： Gold Bond Building Products, LLC , MALCAM Ltd.
发明人： Eli Stav , Danny Moshe
IPC分类号： G01N22/04 , C01F11/46 , C04B11/00 , C04B111/00
CPC分类号： G01N22/04 , C01F11/46 , C04B11/00 , C01P2006/82 , C04B2111/0062
摘要： The present invention is directed to a method of determining a free moisture content and/or a degree of calcination of a gypsum panel. The method comprises the following: (a) transmitting a microwave beam through at least a first portion of the gypsum panel, such that said microwave beam is a transmitted microwave beam; (b) receiving the transmitted microwave beam to form a received microwave beam; (c) determining a phase shift and an attenuation from the received microwave beam; (d) repeating steps (a) to (c) for at least a second portion of the gypsum panel, such that a plurality of phase shifts and a plurality of attenuations is obtained; (e) using at least one empirical factor to correct the plurality of attenuations, producing a plurality of corrected attenuations; (f) calculating a raw moisture content of the gypsum panel from the corrected attenuations wherein the raw moisture content comprises a raw free moisture content and a raw crystal moisture content; (g) using a calibration factor to correct the plurality of phase shifts, producing a plurality of corrected phase shifts; (h) determining a density of the gypsum panel from the corrected phase shifts; and (i) calculating a final moisture content of the gypsum panel from the density and from the raw moisture content wherein the final moisture content comprises a final free moisture content and a final crystal moisture content.

4. 发明授权

US11806668B2 Method and system for extraction of minerals based on divalent cations from brine 有权
公开(公告)号：US11806668B2
公开(公告)日：2023-11-07
申请号：US17644121
申请日：2021-12-14
申请人： Saline Water Conversion Corporation
发明人： Ahmed Saleh Mohammed Alamoudi , Mohammed Farooque Ayumantakath , Nikolay Voutchkov , Seungwon Ihm , Christopher Michael Fellows , Eslam Alwaznani
IPC分类号： B01D61/02 , B01D9/00 , C01F5/34 , C01F11/46 , B01D9/02
CPC分类号： B01D61/026 , B01D9/0059 , B01D9/02 , C01F5/34 , C01F11/468 , B01D2009/0086
摘要： A system and method for producing minerals from divalent ion-containing brine stream includes rejecting sulfate from a divalent-ion rich reject stream in a first nanofiltration seawater reverse osmosis (NF-SWRO) unit, producing solid calcium sulfate dihydrate and a magnesium-rich brine stream in a first concentration unit, concentrating the magnesium-rich brine stream to a saturation point of sodium chloride in a second concentration unit, producing solid sodium chloride and a supernatant product stream in a first crystallizing unit, produce a concentrated magnesium-rich bittern stream from the supernatant product stream in a third concentration unit, and at least one of producing hydrated magnesium chloride from the concentrated magnesium-rich bittern stream in a second crystallizing unit and producing anhydrous magnesium chloride by prilling the concentrated magnesium-rich bitterns stream under a hydrogen chloride atmosphere in a dry air process unit.

5. 发明授权

US11673812B2 Countercurrent process for recovering high purity copper sulfate values from low grade ores 有权
公开(公告)号：US11673812B2
公开(公告)日：2023-06-13
申请号：US16994625
申请日：2020-08-16
申请人： Scandium International Mining Corp.
发明人： Willem P. C. Duyvesteyn
IPC分类号： C01F11/00 , C01F11/46 , C22B3/08 , C22B15/00 , B01J47/026 , C22B3/42
CPC分类号： C01F11/468 , B01J47/026 , C22B3/08 , C22B3/42 , C22B15/0071 , C01P2006/82
摘要： A method for extracting copper values from a low grade copper ore feedstock is provided. The method includes (a) providing an ore feedstock of a copper oxide ore; (b) subjecting the ore to at least one process selected from the group consisting of primary crushing processes and secondary crushing processes; (c) subjecting the ore feedstock to high pressure grinding roll crushing, thereby obtaining a crushed ore; (d) subjecting the crushed ore to acid curing, thereby obtaining a cured ore; (e) subjecting the cured ore to vat or heap leaching, thus yielding a leachate; (f) passing the leachate through a first ion exchange resin which is selective to base metals plus copper, thereby removing a portion of the copper values from the leachate and yielding a first loaded resin and a first treated leachate; (g) stripping base metals plus copper values from the first loaded resin with a first stripping solution, thereby yielding a base metals plus copper-loaded stripping solution; (h) selectively extracting copper values from the copper-loaded stripping solution via solvent extraction, thereby obtaining an extract and a raffinate; and (i) crystallizing a copper salt from the extract, thereby obtaining a crystallized copper salt.

6. 发明公开

US20230158449A1 DRY SORBENT INJECTION WITH RECIRCULATION 审中-公开
公开(公告)号：US20230158449A1
公开(公告)日：2023-05-25
申请号：US17990187
申请日：2022-11-18
申请人： Industrial Accessories Company
发明人： Pramodh Nijhawan
IPC分类号： B01D53/50 , C01F11/46 , B01J20/04 , B01D53/81 , B01D53/78
CPC分类号： B01D53/508 , C01F11/464 , B01J20/043 , B01D53/502 , B01D53/81 , B01D53/78 , B01D2251/604 , B01D2251/304 , B01D2251/606 , B01D2257/302
摘要： Described herein is a dry sorbent injection system and process for removing sulfur oxides from a flue gas. The process generally comprises treating the flue gas with a dry sorbent material to convert the sulfur oxides to sodium sulfate particulates. The sodium sulfate particulates may then be introduced into a mix tank with water to form sodium sulfate solution. The sodium sulfate solution may then be reacted with a calcium hydroxide slurry to produce a reaction mixture comprising calcium sulfate precipitate and a sodium hydroxide solution. The calcium sulfate (gypsum) may be recovered, and the sodium hydroxide solution may be recirculated to pre-treat the flue gas by removing at least a portion of the sulfur dioxide and/or cooling the flue gas stream.

7. 发明申请

US20230126633A1 INTEGRATED METHOD FOR PRODUCING SULPHUR DIOXIDE QUALITY SUITABLE FOR A SULPHURIC ACID PROCESS FROM CALCIUM SULPHATE/PHOSPHOGYPSUM FROM PHOSPHORIC ACID PRODUCTION 有权
公开(公告)号：US20230126633A1
公开(公告)日：2023-04-27
申请号：US17791869
申请日：2021-01-05
申请人： thyssenkrupp Industrial Solutions AG , thyssenkrupp AG
发明人： Peter STOCKHOFF , Zion GUETTA
IPC分类号： C01B17/74 , C01B17/50 , C01B25/232 , C01F11/46 , C01B17/56
摘要： A process for producing sulfuric acid and cement clinker may use calcium sulfate that is formed as a solid by-product and separated off in phosphoric acid production in a reaction of raw phosphate with sulfuric acid to form phosphoric acid. The process comprises treating calcium sulfate separated from the phosphoric acid with an acid to obtain a suspension comprising purified calcium sulfate, separating the purified calcium sulfate in solid form from the liquid phase of the suspension, mixing the purified calcium sulfate with admixtures and reducing agents to obtain a raw meal mixture for cement clinker production, burning the raw meal mixture to obtain the cement clinker, with formation of sulfur dioxide as offgas, and subjecting the sulfur dioxide formed to offgas purification and feeding the sulfur dioxide as raw material to sulfuric acid production to produce the sulfuric acid. The sulfuric acid produced may be used as starting material in phosphoric acid production.

8. 发明授权

US11603332B2 Methods for coal combustion product (CCP) recovery and related products 有权
公开(公告)号：US11603332B2
公开(公告)日：2023-03-14
申请号：US17012141
申请日：2020-09-04
申请人： VHSC, LTD.
发明人： Clinton Wesley Pike, Sr.
IPC分类号： C04B18/06 , C01F11/48 , C01F11/46 , C04B5/00 , C04B28/04 , C01G49/12 , C21B7/00
摘要： Methods of recovering coal combustion products (CCPs) and/or dry bottom furnace slag (DBFS) from coal combustion byproducts are disclosed. The methods include compiling coal combustion byproducts (e.g., from combustion of lignite coal and/or bituminous coal), grinding the coal combustion byproducts to form ground coal combustion byproducts with a maximum particle size of 40 microns, and separating CCPs from the ground coal combustion byproducts using an electrostatic precipitator. The following CCPs can be separated from the coal combustion byproducts using the presently disclosed methods: fly ash, bottom ash (e.g., containing pyrites), scrubber materials (e.g., calcium sulfate and calcium sulfite), and raw coal.

9. 发明申请

US20230039227A1 INTEGRATED METHOD FOR THE COMMERCIAL AND INDUSTRIAL UTILISATION OF CALCIUM SULPHATE WHILST OBTAINING RARE EARTH ELEMENTS FROM THE PRODUCTION OF PHOSPHORIC ACID 有权
公开(公告)号：US20230039227A1
公开(公告)日：2023-02-09
申请号：US17791837
申请日：2021-01-05
申请人： thyssenkrupp Industrial Solutions AG , thyssenkrupp AG
发明人： Stefan HELMLE , Peter STOCKHOFF , Nicolai DAHEIM
IPC分类号： C01B17/74 , C01B25/232 , C04B11/26 , C04B7/04 , C01F11/08 , C01F11/46 , C22B3/06 , C22B59/00
摘要： A process may involve treating calcium sulfate separated from phosphoric acid with acid to obtain a suspension comprising purified calcium sulfate, separating the purified calcium sulfate in solid form from a liquid phase of the suspension, treating the purified calcium sulfate with water or with a salt- and/or chelate ligand-containing aqueous solution to leach rare earths out of the calcium sulfate, separating the further-purified calcium sulfate in solid form from the liquid phase of the suspension, mixing the purified calcium sulfate that is separated off with admixtures and reducing agents to obtain a raw meal mixture for cement clinker production, burning the raw meal mixture to obtain the cement clinker and thereby forming sulfur dioxide as offgas, and feeding the sulfur dioxide as raw material to sulfuric acid production to produce the sulfuric acid.

10. 发明授权

US11471848B1 Universal chemical processor 有权
公开(公告)号：US11471848B1
公开(公告)日：2022-10-18
申请号：US17508469
申请日：2021-10-22
申请人： Advanced Fusion Systems LLC
发明人： Curtis Birnbach , William Joyce
IPC分类号： B01J8/42 , A61L2/26 , B01J8/00 , B01J19/12 , B01J19/26 , C01B7/19 , C01B25/223 , C01F11/46 , C01B15/027 , C02F1/30 , B63H21/12 , B63H11/02 , B63B35/32 , A61L2/08 , C02F101/32 , C02F103/00 , C02F103/08
摘要： A universal chemical processor (UCP) including a reactor vessel with a main chamber, comprises inlets for feedstock, a fluidizing medium and reactants. The UCP further includes a reactive X-ray chemical processor (RXCP) having a large area hollow cylindrical cold cathode in the main chamber, a grid positioned concentrically with respect to the cathode, and an anode positioned concentrically with respect to the cathode and grid. In operation, when activated, the cathode of the RXCP emits electrodes onto the anode, which then emits X-rays into a radiation zone within the main chamber capable of ionizing feedstock and reactants, inducing chemical reactions, and sterilizing and decomposing organic materials within the radiation zone, and wherein, a fluidized bed is supported in the main chamber when the fluidizing medium and feedstock are supplied. The RXCP and the fluidized bed portions can be operated separately or in conjunction to achieve unanticipated results.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式