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1. 发明授权

US10995014B1 Process for producing crystallized metal sulfates 有权
公开(公告)号：US10995014B1
公开(公告)日：2021-05-04
申请号：US17066769
申请日：2020-10-09
申请人： Hatch Ltd. , Northvolt AB
发明人： Robert John Fraser , Evangelos Stamatiou , Mark Joseph Machado , Henry Christian Immo von Schroeter , Mahmood Alemrajabi
IPC分类号： C01G53/10 , C01G51/10 , C01G45/10 , C22B26/12 , H01M10/0525 , C22B7/00 , C22B3/00 , H01M10/54
摘要： A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.

2. 发明授权

US12054401B2 Process and method for producing crystallized metal sulfates 有权
公开(公告)号：US12054401B2
公开(公告)日：2024-08-06
申请号：US17222264
申请日：2021-04-05
申请人： Hatch Ltd. , Northvolt AB
发明人： Robert John Fraser , Evangelos Stamatiou , Mark Joseph Machado , Henry Christian Immo von Schroeter , Mahmood Alemrajabi
IPC分类号： C01G53/10 , C01G45/10 , C01G51/10 , C22B3/00 , C22B7/00 , C22B26/12 , H01M10/0525 , H01M10/54
CPC分类号： C01G53/10 , C01G45/10 , C01G51/10 , C22B7/007 , C22B23/0415 , C22B26/12 , H01M10/0525 , H01M10/54
摘要： A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.

3. 发明申请

US20230052881A1 SODIUM SULFATE BY-PRODUCT PROCESSING IN LITHIUM AND BATTERY CHEMICAL PRODUCTION 有权
公开(公告)号：US20230052881A1
公开(公告)日：2023-02-16
申请号：US17977523
申请日：2022-10-31
申请人： HATCH LTD.
发明人： Robert John Fraser , Evangelos Stamatiou
IPC分类号： C01D1/20 , C01D3/04 , B01J49/57 , B01J41/04 , B01J41/12 , C01D5/02
摘要： A process for battery chemical production, where a sodium sulfate stream is treated with an ion exchange process to provide potassium sulfate and sodium chloride. The sodium chloride may be treated with a chlor-alkali to produce sodium hydroxide for use upstream in the battery chemical production process.

4. 发明授权

US09850138B2 Ponds for cooling and/or salt recovery 有权
公开(公告)号：US09850138B2
公开(公告)日：2017-12-26
申请号：US14231351
申请日：2014-03-31
申请人： Hatch Ltd.
发明人： David R. Chinloy , Jianping Zhang , Evangelos Stamatiou
IPC分类号： B01D1/24 , C01D3/08 , F24J2/04 , C01D3/06 , F28C3/06 , C02F1/22
CPC分类号： C01D3/08 , B01D1/24 , C01D3/06 , C02F1/22 , F24S10/10 , F24S10/13 , F28C3/06
摘要： A pond for cooling and/or recovering salt from a hot aqueous solution of a salt such as potassium chloride produced by solution mining. The pond comprises a plurality of channels arranged side-by-side, each of the channels being defined by a plurality of sides. An inlet is provided in a side of a channel for receiving the aqueous solution, and an outlet is provided in a side of another one of the channels for discharging the aqueous solution. The pond has at least one dike separating the channels from one another. A gap is formed in each dike to permit the aqueous solution to flow between the channels, the gap having a length which is about 10 to about 40 percent of the length of the sides of the channels. Salt is crystallized and the solution is cooled as it passes through the channels of the pond.

5. 发明申请

US20150090408A1 PONDS FOR COOLING AND/OR SALT RECOVERY 有权
标题翻译：用于冷却和/或盐恢复的PONDS
公开(公告)号：US20150090408A1
公开(公告)日：2015-04-02
申请号：US14231351
申请日：2014-03-31
申请人： HATCH LTD.
发明人： David Chinloy , Jianping Zhang , Evangelos Stamatiou
IPC分类号： C01D3/08
CPC分类号： C01D3/08 , B01D1/24 , C01D3/06 , C02F1/22 , F24S10/10 , F24S10/13 , F28C3/06
摘要： A pond for cooling and/or recovering salt from a hot aqueous solution of a salt such as potassium chloride produced by solution mining. The pond comprises a plurality of channels arranged side-by-side, each of the channels being defined by a plurality of sides. An inlet is provided in a side of a channel for receiving the aqueous solution, and an outlet is provided in a side of another one of the channels for discharging the aqueous solution. The pond has at least one dike separating the channels from one another. A gap is formed in each dike to permit the aqueous solution to flow between the channels, the gap having a length which is about 10 to about 40 percent of the length of the sides of the channels. Salt is crystallized and the solution is cooled as it passes through the channels of the pond.
摘要翻译：用于从溶液开采产生的盐如氯化钾的热水溶液中冷却和/或回收盐的池。该池包括并排设置的多个通道，每个通道由多个侧面限定。在用于接收水溶液的通道的侧面设置有入口，并且在另一个通道的一侧设置有用于排出水溶液的出口。池塘至少有一个堤坝将渠道彼此分开。在每个堤坝中形成间隙以允许水溶液在通道之间流动，间隙具有通道侧面长度的约10至约40％的长度。盐结晶，溶液在通过池塘的通道时冷却。

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