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1.发明公开公开(公告)号：US20230192488A1
公开(公告)日：2023-06-22
申请号：US16627721
申请日：2019-01-15
摘要： The invention relates to the field of efficient separation and recovery of bromine by full wet method, especially to a two-step separating method of bromide and recovery of lead and zinc from printed circuit board Incineration ash. It mainly includes first sodium hydroxide alkaline leaching, secondary sodium peroxide alkaline leaching, pH adjustment, separate lead and zinc, bromide evaporation and crystallization to recover crude bromide and other steps. Compared with traditional comprehensive recovery process of ash, the invention uses sodium hydroxide to dissolve bromide, lead and zinc, and uses the strong oxidation of sodium peroxide in alkaline environment, copper bromide and other bromine are oxidized and leached; through two-step method, the efficient leaching of bromine, lead and zinc is realized, silver and other precious metals are enriched at the same time. It is beneficial to subsequent recovery of precious metals and has the characteristics of short tail liquid discharge.
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公开(公告)号：US10756335B2
公开(公告)日：2020-08-25
申请号：US15999573
申请日：2018-09-04
申请人： George E. Mayer
发明人： George E. Mayer
摘要： A microporous lead-containing solid material is produced, which can serve as a carrier for desired materials into a reaction for various desired purposes. For example, if the microporous solid is impregnated with borax it tends to inhibit the growth of unduly large crystals of tetrabasic lead, which is useful in producing batteries having improved functional qualities.
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3.发明授权公开(公告)号：US07011805B2
公开(公告)日：2006-03-14
申请号：US10803491
申请日：2004-03-19
CPC分类号： H01M4/20 , C01G21/20 , C01P2002/72 , C01P2004/03 , C01P2004/61 , C01P2006/40 , H01M4/56 , Y10T29/49108 , Y10T29/49115
摘要： The production of tetrabasic lead sulfate by means of solid state reactions at high temperatures allow the formation of powders having a particle size of less than 10 μm. In the methods the chemical reaction that takes place between lead oxide and different sulfated compounds occurs in a single high temperature treatment. The sulfated compounds used in the present invention to produce the tetrabasic lead sulfate are: PbSO4, 3PbO.PbSO4.H2O, H2SO4 and (NH4)2SO4. There are lead-acid battery pastes produced using the tetrabasic lead sulfate made, the lead-acid battery plates made with the pastes, and the lead-acid batteries subsequently made with the plates.
摘要翻译： 通过在高温下的固态反应生产四价硫酸铅可以形成粒径小于10um的粉末。 在该方法中，在单次高温处理中发生在氧化铅和不同硫酸化化合物之间发生的化学反应。 本发明中用于生产四价硫酸铅的硫酸化合物是：PbSO 4，3PbO.PbSO 4，H 2 O，H 2和3（SO 4）2 SO 2，SO 3，SO 2，SO 2， 使用制造的四价硫酸铅制成的铅酸电池浆料，用糊料制成的铅酸电池板，随后用板制成铅酸电池。
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公开(公告)号：US5660600A
公开(公告)日：1997-08-26
申请号：US410552
申请日：1995-03-24
申请人： Brijesh Vyas
发明人： Brijesh Vyas
CPC分类号： H01M4/20 , C01G21/20 , H01M10/128 , H01M4/56 , Y10T29/49115
摘要： Batteries based on lead chemistry, e.g., lead-acid batteries, are substantially improved through the use of a particular positive material. This material is formed by the electrochemical conversion of tetrabasic lead sulfate (TTB) where this TTB is synthesized at a pH in the range 9.3 to 12 and under reaction conditions that provide a substantial excess of sulfate to the reactive lead. The resulting materials provide needle-like structures with a width generally in the range 3 to 1 .mu.m. The relative narrow needles, when employed on the positive electrode of a lead acid battery, improve the efficiency of formation, provide good adhesive to the positive plate, extend battery life, as well as, yield excellent capacity per gram of active material.
摘要翻译： 基于铅化学的电池，例如铅酸电池，通过使用特定的正极材料而大大改善。 该物质通过四碱硫酸铅（TTB）的电化学转化形成，其中该TTB在9.3至12范围内的pH下以及在向反应性铅提供大量过量硫酸盐的反应条件下合成。 所得材料提供宽度通常在3至1微米范围内的针状结构。 相对较窄的针，当用于铅酸电池的正极时，提高了形成效率，为正极板提供了良好的粘合剂，延长了电池寿命，并且每克活性材料产生优异的容量。
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5.发明授权Method of reducing lead and acid waste contamination in battery plant operation 失效减少电池厂操作中铅和酸废物污染的方法
公开(公告)号：US4024055A
公开(公告)日：1977-05-17
申请号：US642109
申请日：1975-12-18
申请人： William Arthur Blann
发明人： William Arthur Blann
CPC分类号： C02F9/00 , C01G21/20 , C02F1/5236 , C02F1/5281 , H01M10/54 , C02F2101/101 , C02F2101/20 , C02F2209/06 , Y02W30/84
摘要： A method of reducing the sulfate ion and sulfuric acid contamination of waste water in lead-acid battery manufacturing operations and recovery of the lead in salvageable form is provided which comprises neutralizing aqueous sulfuric acid wastes by treatment with waste battery paste containing lead oxide under controlled pH conditions.
摘要翻译： 提供一种降低铅酸蓄电池制造操作中废水的硫酸根离子和硫酸污染的方法，并回收可回收的铅的方法，其包括通过在受控pH下含有氧化铅的废电池浆料处理来中和硫酸水溶液 条件。
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6.发明授权
公开(公告)号：US3440155A
公开(公告)日：1969-04-22
申请号：US3440155D
申请日：1966-03-15
发明人： PICKERING RALPH W , PIDGEON JOHN S
CPC分类号： C22B13/04
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公开(公告)号：US2249330A
公开(公告)日：1941-07-15
申请号：US17834937
申请日：1937-12-06
申请人： NAT LEAD CO
发明人： ALEXANDER STEWART
IPC分类号： C01G21/20
CPC分类号： C01G21/20
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公开(公告)号：US20220169527A1
公开(公告)日：2022-06-02
申请号：US17442344
申请日：2020-03-25
申请人： QUANTUM SCIENCE LTD
摘要： The present invention provides the use of a lead (IV) containing compound to prepare a lead chalcogenide nanocrystal and a method for producing broadband lead chalcogenide nanocrystals in a low cost, size-controllable and scalable method, the method comprising contacting a lead (IV) containing compound with an organic acid and a chalcogen-containing reagent.
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