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103 条记录 (耗时 0.015 秒)

    Hydrometallurgical process for the recovery of silver as silver halide or silver pseudohalide from waste photographic paper and film and other sensitized materials
    91.
    发明授权
    Hydrometallurgical process for the recovery of silver as silver halide or silver pseudohalide from waste photographic paper and film and other sensitized materials 失效
    用于从废纸相片和薄膜等敏化材料中回收银作为卤化银或拟卤化银的湿法冶金工艺

    公开(公告)号：US4256704A

    公开(公告)日：1981-03-17

    申请号：US35532

    申请日：1979-05-03

    申请人： Michael S. Howard

    发明人： Michael S. Howard

    IPC分类号： C01G5/00 ,  C01G5/02 ,  G03C11/24 ,  C01C3/20

    CPC分类号： C01G5/00 ,  C01G5/02 ,  G03C11/24

    摘要： The invention provides a process for the recovery of transition and post-transition metals the halides and pseudohalides of which are hyperlinearly soluble in excess halide or pseudohalide, and especially of silver as halide or pseudohalide from waste photographic paper, photographic film, and other sensitized materials. The process comprises washing the material, removing wash, bringing the silver present to a form solubilizable in concentrated halide or pseudohalide solution, by oxidation if necessary, dissolving the silver salt or salts by means of a concentrated reagent solution of the halide or pseudohalide of an alkali or alkaline-earth metal, or ammonium, separating said complex solution from solid matter, washing the solid in turn with a dilute solution of the halide or pseudohalide and then with water, treating said separated complex solution with said dilute halide or pseudohalide wash and water-wash combined to form a precipitate and separating the precipitate of said silver halide or pseudohalide, reconcentrating dilute reagent, separating unwanted, accumulated salts from reagent and purifying silver salt.

    摘要翻译： 本发明提供了一种用于回收过渡金属和过渡金属的方法，其卤化物和拟卤化物在过量的卤化物或拟卤化物中尤其是卤化物或拟卤化物的卤化物或拟卤化物的高度线性溶解，从废纸，照相胶片和其它敏化材料 。 该方法包括洗涤材料，除去洗涤物，使银存在于可浓缩的卤化物或拟卤化物溶液中的形式，如果需要，通过氧化，通过卤化物或拟卤化物的浓缩试剂溶液溶解银盐或盐 碱或碱土金属或铵，将所述络合物溶液与固体物质分离，依次用卤化物或拟卤化物的稀溶液，然后用水洗涤固体，用所述稀卤化物或拟卤化物洗涤处理所述分离的络合物溶液， 水洗组合形成沉淀并分离所述卤化银或拟卤化物的沉淀物，重新浓缩稀释试剂，从试剂中分离不需要的积累盐并纯化银盐。

    Recovery of silver and other valuable constituents from polyester based photographic film
    92.
    发明授权
    Recovery of silver and other valuable constituents from polyester based photographic film 失效
    从聚酯基摄影胶片中回收银和其他有价值的成分

    公开(公告)号：US4078916A

    公开(公告)日：1978-03-14

    申请号：US784829

    申请日：1977-04-05

    申请人： Arthur H. Gerber ,  Eugene Wainer

    发明人： Arthur H. Gerber ,  Eugene Wainer

    IPC分类号： C08L67/00 ,  B09B3/00 ,  B29B11/00 ,  B29B17/02 ,  B29B17/04 ,  C08J3/14 ,  C08J11/08 ,  G03C11/24 ,  C22B11/00 ,  C08J11/04

    CPC分类号： C08J11/08 ,  C08J3/14 ,  G03C11/24 ,  C08J2367/02 ,  Y02P20/582 ,  Y02W30/701

    摘要： Scrap photographic film comprising at least a four component system involving a polyalkyleneterephthalate film base, an adhesive or subbing layer utilizing a terpolymer consisting chiefly of polyvinylidenechloride and a gelatin layer containing metallic silver or a compound thereof and a variety of contaminants such as causal dirt, dyes and the like is broken down for recovery of the valuable constituents therein including the silver, the polyvinylidenechloride terpolymer, and the polyesters by treating the chopped photographic film at an elevated temperature with a solvent for both the polyester and polyvinylidenechloride values in which solvent both the gelatin and silver values are insoluble, under conditions chosen to insure the quantitative recovery of the silver values.

    摘要翻译： 包含至少一种涉及聚对苯二甲酸亚烷基酯薄膜基材的四组分体系的废料照相胶片，使用主要由聚偏二氯乙烯组成的三元共聚物和含有金属银或其化合物的明胶层的粘合剂或底胶层以及各种污染物如致病污垢，染料 通过用聚酯和聚偏二氯乙烯的溶剂处理短时间的照相胶片，在高温下处理切碎的照相胶片，分解其中的有价值成分，包括银，聚偏二氯乙烯三元共聚物和聚酯，其中溶剂都是明胶 并且在选择的条件下，银值是不溶的，以确保银值的定量回收。