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公开(公告)号：US20210246529A1
公开(公告)日：2021-08-12
申请号：US17248702
申请日：2021-02-03
发明人： Ankur D. Jariwala , Gary W. Sams
摘要： Methods and apparatus for integrated alkali metal extraction are disclosed. Various exchange media are used to separate a chosen alkali metal, usually lithium, from a source stream and render the alkali metal into a product. In some cases, absorption/desorption processes, using solid and/or liquid absorption media, are used to purify a brine stream into a concentrate stream having elevated concentration of the desired alkali metal. Various processes, which may include use of liquid absorbents, electrochemical processing, centrifugation, evaporation, electrical mixing and separation, or combinations thereof, are used to separate the chosen metal from the source, and aqueous streams are recycled among the processes to facilitate the various separations.
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公开(公告)号：US20190203933A1
公开(公告)日：2019-07-04
申请号：US15862270
申请日：2018-01-04
IPC分类号： F23G7/08
CPC分类号： F23G7/08 , F05D2240/12 , F23G2207/101 , F23G2207/102 , F23G2207/20 , F23G2207/30 , F23G2209/14
摘要： Disclosed herein are systems, apparatuses, and methods for using a sensed combustion zone temperature to continuously control combustion of a first (main) gas within an enclosed combustor. The combustor is in fluid communication with a first gas line carrying the first gas, a second gas line independent of the first gas line carrying a second (assist) gas having a higher heating value than the first gas, and air dampers providing draft or assist air. The first gas may be vapors from a production source or tank. A computer control system monitors the combustion zone temperature of the enclosed combustor as sensed by a sensor in electronic communication with the computer control system and controls the combustion zone temperature by changing a condition of a first gas line valve of the first gas line, a second gas line valve of the second gas line, and the air dampers.
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公开(公告)号：US11725813B2
公开(公告)日：2023-08-15
申请号：US15862270
申请日：2018-01-04
CPC分类号： F23G7/08 , F23G7/065 , F05D2240/12 , F23G2204/103 , F23G2207/101 , F23G2207/102 , F23G2207/20 , F23G2207/30 , F23G2209/14 , F23G2209/141
摘要： Disclosed herein are systems, apparatuses, and methods for using a sensed combustion zone temperature to continuously control combustion of a first (main) gas within an enclosed combustor. The combustor is in fluid communication with a first gas line carrying the first gas, a second gas line independent of the first gas line carrying a second (assist) gas having a higher heating value than the first gas, and air dampers providing draft or assist air. The first gas may be vapors from a production source or tank. A computer control system monitors the combustion zone temperature of the enclosed combustor as sensed by a sensor in electronic communication with the computer control system and controls the combustion zone temperature by changing a condition of a first gas line valve of the first gas line, a second gas line valve of the second gas line, and the air dampers.
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公开(公告)号：US11643703B2
公开(公告)日：2023-05-09
申请号：US16904686
申请日：2020-06-18
摘要： Apparatus and methods for lithium extraction from aqueous sources are described herein. Divalent ions are removed using staged membrane separation. The aqueous source is subjected to a solvent extraction process that extracts lithium. Aqueous and organic phases of streams produced by the solvent extraction process are separated using electrical and/or gas flotation separation. The solvent is de-complexed to unload lithium. Streams produced by the de-complexing may be subjected to electrical and/or gas flotation separation. Solvent de-complexing can be performed using an electrical separator. Aqueous streams are pH adjusted for return to the environment.
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公开(公告)号：US10794167B2
公开(公告)日：2020-10-06
申请号：US16209401
申请日：2018-12-04
发明人： Z. Frank Zheng , Dahai Tang , Sandrine Hoebler , Matthew J. Hull , Gary W. Sams , Ankur D. Jariwala
摘要： Embodiments described herein provide methods of operating a linear contactor for absorbing contaminants from a gas stream. The gas stream flows from a first end to a second end of the linear contactor. Fresh absorbent is provided at the first end of the linear contactor based on the theoretical minimum amount of absorbent needed to remove the contaminants. Absorbent is recycled from the second end to the first end of the linear contactor. Fresh absorbent is provided at the second end based on chemical condition of the recycled absorbent. Apparatus for practicing the method is also described.
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公开(公告)号：US20200179866A1
公开(公告)日：2020-06-11
申请号：US16212076
申请日：2018-12-06
发明人： Z. Frank Zheng , Dahai Tang , Sandrine Hoebler , Matthew J. Hull , Gary W. Sams , Ankur D. Jariwala
摘要： Embodiments described herein provide methods of removing contaminants from a gas, the methods including providing a feed gas to a vertical contactor; flowing the feed gas in a gas flow direction through the vertical contactor; mixing a fresh absorbent makeup with a recycled absorbent to form an absorbent mixture; providing a fresh absorbent feed to the feed gas; flowing the absorbent mixture through the vertical contactor in a liquid flow direction counter to the gas flow direction; recovering a clean gas stream from the vertical contactor; and recovering the recycled absorbent from the vertical contactor.
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公开(公告)号：US20230392233A1
公开(公告)日：2023-12-07
申请号：US18328824
申请日：2023-06-05
IPC分类号： C22B26/12 , C22B3/08 , C22B3/12 , C22B3/42 , C22B3/44 , C01D15/08 , C01D15/02 , C01D15/04 , C01D15/06
CPC分类号： C22B26/12 , C22B3/08 , C22B3/12 , C22B3/42 , C22B3/44 , C01D15/08 , C01D15/02 , C01D15/04 , C01D15/06
摘要： Described herein are methods of recovering a target ion, such as lithium, from earth materials. The methods include leaching the target ion from an earth material such as a clay to form a target solution and extracting the target ion from the dilute lithium solution using a extraction process selective for the target ion to yield a concentrate which can be converted to a product.
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8.发明申请公开(公告)号：US20200173266A1
公开(公告)日：2020-06-04
申请号：US16209401
申请日：2018-12-04
发明人： Z. Frank Zheng , Dahai Tang , Sandrine Hoebler , Matthew J. Hull , Gary W. Sams , Ankur D. Jariwala
摘要： Embodiments described herein provide methods of operating a linear contactor for absorbing contaminants from a gas stream. The gas stream flows from a first end to a second end of the linear contactor. Fresh absorbent is provided at the first end of the linear contactor based on the theoretical minimum amount of absorbent needed to remove the contaminants. Absorbent is recycled from the second end to the first end of the linear contactor. Fresh absorbent is provided at the second end based on chemical condition of the recycled absorbent. Apparatus for practicing the method is also described.
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公开(公告)号：US20220055910A1
公开(公告)日：2022-02-24
申请号：US17444072
申请日：2021-07-30
发明人： Ankur D. Jariwala , Gary W. Sams
摘要： A method of recovering lithium from an aqueous source is described. Lithium is extracted from the aqueous source using a sorption/desorption process to form a lithium extract. Impurities are removed from the lithium extract to form a purified lithium extract, and the purified lithium extract is concentrated using a water removal process to form a lithium concentrate. The lithium concentrate is then converted to one or more of lithium carbonate and lithium hydroxide to form a converted stream. Various streams, including some lithium-containing streams, are recycled to the sorption/desorption process.
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