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1.发明授权Process and solvent for extraction of the chromates present in an aqueous solution 失效用于萃取存在于水溶液中的铬酸盐的方法和溶剂
公开(公告)号：US4446026A
公开(公告)日：1984-05-01
申请号：US358053
申请日：1982-03-15
CPC分类号： C25B15/08 , C01B11/145 , C01D3/18 , C01G37/003 , C01G37/14 , C22B3/0095 , Y02P10/234 , Y10S204/13 , Y10S210/913
摘要： The invention relates to a process and a solvent for extraction of the chromates present in an aqueous solution. According to the invention, the aqueous phase is brought into contact with an organic phase comprising 2 to 10% by volume of a solvent selected from the group of tertiary or quaternary amines and 15 to 40% of a solvent selected from the group of esters of phosphoric acid in a diluent based on petroleum hydrocarbons. The invention is applicable to the production of concentrated solutions of chromates easily recyclable from an extraction of the chromates contained in an industrial solution.
摘要翻译： 本发明涉及用于提取存在于水溶液中的铬酸盐的方法和溶剂。 根据本发明，使水相与包含2至10体积％的选自叔胺或季胺的溶剂和15至40％的选自以下的溶剂的有机相接触： 基于石油烃的稀释剂中的磷酸。 本发明适用于从工业溶液中所含的铬酸盐萃取中容易回收的铬酸盐浓缩溶液的生产。
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2.发明授权
公开(公告)号：US4548793A
公开(公告)日：1985-10-22
申请号：US458148
申请日：1983-01-14
申请人： Didier Beutier , Hugues Bruvier , Claude Palvadeau
发明人： Didier Beutier , Hugues Bruvier , Claude Palvadeau
摘要： The invention relates to a process for removing nickel from lead chloride dissolved into chloride brine to obtain lead chloride solution wherein the nickel concentration is under 50 mg/liter. The present invention comprises the following steps:(a) adjusting the content of an element selected from the group of arsenic and antimony to a value of at least 1/5 of the concentration in nickel expressed in grams per liter;(b) contacting the solution from (a) with lead powder thus precipitating nickel and the said element selected from the group of arsenic and antimony.
摘要翻译： 本发明涉及一种从溶解在氯化物盐水中的氯化铅中去除镍的方法，以获得镍浓度低于50mg /升的氯化铅溶液。 本发明包括以下步骤：（a）将选自砷和锑的元素的含量调节至至少为镍浓度的1/5，以克/升表示; （b）使来自（a）的溶液与铅粉接触，从而沉淀镍和选自砷和锑的所述元素。
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3.发明授权Method for the selective dissolution of lead from mixed minerals containing zinc 失效铅从含锌混合矿物中选择性溶解的方法
公开(公告)号：US4568525A
公开(公告)日：1986-02-04
申请号：US525933
申请日：1983-08-24
申请人： Didier Beutier
发明人： Didier Beutier
IPC分类号： C22B3/00 , C22B3/04 , C22B3/10 , C22B13/00 , C22B15/00 , C22B19/02 , B01F1/00 , C01G3/05 , C01G3/12
CPC分类号： C22B3/10 , C22B19/02 , Y02P10/234
摘要： The invention is concerned with a method for the selective dissolution of lead in relation to zinc that is present as a sulphurized compound.The method comprises treating said compound to lixiviation with a solution containing ferrous chloride, while bubbling a gas that contains oxygen through the lixiviating solution.
摘要翻译： 本发明涉及相对于作为硫化化合物存在的锌的铅的选择性溶解的方法。 该方法包括用含有氯化亚铁的溶液处理所述化合物以浸泡，同时通过浸提溶液鼓泡含有氧的气体。
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公开(公告)号：US4891193A
公开(公告)日：1990-01-02
申请号：US237681
申请日：1988-08-25
申请人： Didier Beutier , Yves Le Quesne
发明人： Didier Beutier , Yves Le Quesne
IPC分类号： C01G39/00
CPC分类号： C01G39/003 , C22B3/24 , Y02P10/234 , Y10S210/912 , Y10S423/14
摘要： A process for the separation of molybdenum present in a sulfuric solution, in which the sulfuric solution is placed in contact with a stationary phase whose active group contains an oxime group, and the stationary phase is eluted using an alkaline solution.
摘要翻译： 将硫酸溶液与活性基团含有肟基的固定相接触的硫酸溶液中存在的钼的分离方法和使用碱性溶液洗脱的方法。
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公开(公告)号：US4640710A
公开(公告)日：1987-02-03
申请号：US678998
申请日：1984-12-06
CPC分类号： C01G5/00 , C22B11/04 , C22B3/44 , Y02P10/234
摘要： The invention relates to a process for recovering silver in sulfuric solutions. Its characterizing feature is that the silver solution is contacted with a quantity of zinc sulfide which is at least equal to the stoichiometric quantity and the surface area of which is at least equal to K Ag.sup.2/3 x V, K being a constant, Ag being the silver concentration in the solution expressed in kilograms per cubic meter, and V the volume of the solution in cubic meters, the surface area being expressed in square meters and the value of K being greater than or equal to approximately 10. Application to the recovery of silver in zinc plant residues.
摘要翻译： 本发明涉及一种在硫酸溶液中回收银的方法。 其特征在于，银溶液与至少等于化学计量的硫化锌的量接触，其表面积至少等于K Ag2 / 3×V，K为常数，Ag为 溶液中的银浓度以千克每立方米表示，V表示溶液体积，以立方米表示，表面积以平方米表示，K值大于或等于约10。应用于回收 的银在锌植物残渣中。
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