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公开(公告)号：US20210380431A1
公开(公告)日：2021-12-09
申请号：US17024737
申请日：2020-09-18
发明人： Xiaozhou Zhou , Huangjing Zhao
摘要： The present invention discloses the systems of producing calcium and magnesium carbonate from the Ca/Mg containing solution leached by a CO2-based hydrometallurgical process which includes: a precipitation reactor that the Ca/Mg containing leached solution is continuously added and fully mixed with the alkaline reagent at specific mole ratio into the precipitation reactor and the reactor also comprises a CO2 bubbling module where CO2 is captured and recirculated from the thermal decomposition process as needed; a solid-liquid separation unit that the treated slurry is treated by the solid-liquid separation unit to produce precipitated calcium and magnesium carbonate products where the recirculating water is recycled back into the precipitation reactor; a thermal decomposition unit that the calcium and magnesium carbonate products is calcined by the thermal decomposition unit to produce an alkaline reagent and the alkaline reagent is recycled back into the precipitation reactor for the next batch of reaction.
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2.发明申请公开(公告)号：US20210380406A1
公开(公告)日：2021-12-09
申请号：US17334858
申请日：2021-05-31
发明人： Xiaozhou Zhou , Huangjing Zhao
IPC分类号： C01B3/02 , B01J23/745 , C01B32/05 , B01J37/18 , B01J37/08 , B01J8/18 , B01J8/24 , C10B53/02 , C10B57/10 , C10B57/06 , C10B57/14 , B01D36/02 , C22B1/16
摘要： Systems of producing hydrogen and biochar from biomass assisted by iron and steel slag extract include: a pretreatment system that the reactants, including the biomass, iron-based catalyst and alkaline reagent, are pretreated and fully mixed at specific ratios in the pretreatment system; thermal reactor that the mixed reactants from the pretreatment device are transferred into and fully reacted in the thermal reactor; a solid residue collector that the solid residue is collected by the solid residue collector at the discharge outlet of the thermal reactor after the reacted mixture is separated; a gas collection system that he generated hydrogen-based gas is collected by the gas collection system from the exhaust port of the thermal reactor.
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公开(公告)号：US11408052B2
公开(公告)日：2022-08-09
申请号：US16985648
申请日：2020-08-05
发明人： Huangjing Zhao , Xiaozhou Zhou
摘要： The present invention is a CO2 based hydrometallurgical multistage reaction and separation system comprising: a pre-washing device configured to fully mix the feedstock, such as industrial solid waste, mineral and mine tailings with auxiliary reagents and water at specific ratio, a reactor configured to treat the washed slurry with CO2 bubbling and discharge the treated slurry to the next stage, multistage separators configured to separate solid particles from treated slurry and recycle the unreacted solids back into the pre-washing device, a by-product preparation device configured to generate calcium and magnesium based products from filtrate containing target elements, a water recirculating device configured to recycle the remaining liquor back to the system. The present invention ensures the whole system is able to continuously and consistently react at maximum capacity through continuous slurry feeding and CO2 bubbling into the reactors which also enables multistage circulating reaction.
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公开(公告)号：US20210381078A1
公开(公告)日：2021-12-09
申请号：US16985648
申请日：2020-08-05
发明人： Huangjing Zhao , Xiaozhou Zhou
摘要： The present invention is a CO2 based hydrometallurgical multistage reaction and separation system comprising: a pre-washing device configured to fully mix the feedstock, such as industrial solid waste, mineral and mine tailings with auxiliary reagents and water at specific ratio, a reactor configured to treat the washed slurry with CO2 bubbling and discharge the treated slurry to the next stage, multistage separators configured to separate solid particles from treated slurry and recycle the unreacted solids back into the pre-washing device, a by-product preparation device configured to generate calcium and magnesium based products from filtrate containing target elements, a water recirculating device configured to recycle the remaining liquor back to the system. The present invention ensures the whole system is able to continuously and consistently react at maximum capacity through continuous slurry feeding and CO2 bubbling into the reactors which also enables multistage circulating reaction.
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