Method of recovering photographic film
    1.
    发明授权
    Method of recovering photographic film 失效
    摄影胶片的回收方法

    公开(公告)号:US6140378A

    公开(公告)日:2000-10-31

    申请号:US139320

    申请日:1998-08-25

    申请人: Sadao Nishibori

    发明人: Sadao Nishibori

    摘要: A method for recycling a photographic film is provided. The method comprises shredding the photographic film into a plurality of fragments to be processed; swelling the fragments to be processed formed in the shredding step by dipping each of these fragments to be processed into hot water; and drying the fragments to be processed swollen in the swelling step by applying an impact frictional striking force to each of these fragments to be processed, peeling layers other than a resin material base of the photographic film, i.e., a protective coat, an emulsion layer, and a base coat layer, from each fragment to be processed and classifying these layers, and grading the resin material base so as to be resin material to be recovered.

    摘要翻译: 提供一种再循环照相胶片的方法。 该方法包括将照相胶片切割成待处理的多个碎片; 通过将待处理的这些碎片中的每一个浸渍在热水中来使在粉碎步骤中形成的待处理碎片膨胀; 并且通过对这些待处理的碎片施加冲击摩擦击打力,在膨胀步骤中干燥待处理的碎片,除了照相胶片的树脂材料基底之外的剥离层,即保护涂层,乳剂层 和来自各个待加工片段的基底涂层,对这些层进行分级,并对树脂材料基材进行分级,以成为要回收的树脂材料。

    Recovery of polyester from spent film
    3.
    发明授权
    Recovery of polyester from spent film 失效
    从废膜中回收聚酯

    公开(公告)号:US5523329A

    公开(公告)日:1996-06-04

    申请号:US945675

    申请日:1992-09-16

    摘要: Spent photographic film having at least a polyester base, blue dye, and a polyvinylidene binder layer, and from which the photographic emulsion has been removed, is treated to recover usable polyester. The spent photographic film is heated in cyclohexanone at a temperature sufficient and for a time sufficient to remove both polyvinylidene and dye compounds from the polyester base. The recovered polyester may then be mixed with virgin polyester and extruded to produce a polyester product comprising in part recovered polyester and in part virgin polyester.

    摘要翻译: 处理具有至少聚酯基材,蓝色染料和聚偏二氟乙烯粘结剂层并且已经从其中除去照相乳液的废照相胶片,以回收可用的聚酯。 用过的照相胶片在足够的温度下在环己酮中加热足够的时间以从聚酯基体中除去聚偏二氯乙烯和染料化合物。 然后将回收的聚酯与原始聚酯混合并挤出以制备包含部分回收的聚酯和部分原始聚酯的聚酯产品。

    Method of treating photographic processing wastes
    5.
    发明授权
    Method of treating photographic processing wastes 失效
    处理照相处理废物的方法

    公开(公告)号:US5296111A

    公开(公告)日:1994-03-22

    申请号:US800128

    申请日:1991-11-29

    摘要: A method of treating photographic processing wastes is disclosed. The method comprises (1) mixing a silver-recovery system waste and a development system waste from photographic processing to produce a waste mixture, (2) adding to said waste mixture phosphorus as a nutritive substrate in an amount corresponding to at least 2% based on the COD value of the waste mixture, and (3) subjecting the resulting waste mixture to a bio-oxidation treatment using microflora containing sulfur-oxidizing bacteria. The method enables a continuously treatment of high concentration photographic processing wastes with high efficiency over a long period of time.

    摘要翻译: 公开了一种处理照相处理废物的方法。 该方法包括(1)将银回收系统废物和来自照相处理的显影系统废物混合以产生废物混合物,(2)将所述废物混合物中的磷作为营养基质添加至相当于至少2% 废弃混合物的COD值,(3)使用含有硫氧化细菌的微生物群落对所得废弃物进行生物氧化处理。 该方法能够长时间高效率地连续地处理高浓度摄影处理废物。

    Process for recovery of silver from spent, waste, acidic processing
fluids
    7.
    发明授权
    Process for recovery of silver from spent, waste, acidic processing fluids 失效
    从废弃的废物,酸性处理液中回收银的过程

    公开(公告)号:US4740244A

    公开(公告)日:1988-04-26

    申请号:US925296

    申请日:1986-10-31

    申请人: James E. Williams

    发明人: James E. Williams

    CPC分类号: C22B11/046 Y02P10/214

    摘要: Process for recovery of silver from spent, waste acidic silver halide photographic processing fluid, e.g., fixer solution, comprising passing the fluid through finely divided iron, e.g., steel wool, contained in a vessel in the presence of a metal salt of copper or cadmium, e.g., copper(II)sulfate, copper chloride dihydrate, cadmium sulfate, etc. The ratio of iron to metal salt is 25 to 1 to 4 to 1. An apparatus for recovery of silver is also described.

    摘要翻译: 废弃的酸性卤化银照相处理流体例如固定剂溶液回收银的方法,包括使流体通过在铜或镉金属盐存在下容纳在容器中的细分铁(例如钢丝绒) 例如硫酸铜(II),氯化铜二水合物,硫酸镉等。铁与金属盐的比例为25〜1〜4比1。还描述了回收银的装置。

    Photolithographic stripping method for removing contrast enhancement
layer
    8.
    发明授权
    Photolithographic stripping method for removing contrast enhancement layer 失效
    用于去除对比度增强层的光刻剥离方法

    公开(公告)号:US4623611A

    公开(公告)日:1986-11-18

    申请号:US691829

    申请日:1985-01-16

    申请人: Paul R. West

    发明人: Paul R. West

    CPC分类号: G03F7/422

    摘要: A method is provided for stripping a contrast enhancement layer from the surface of a photoresist such as a novolak-based resist without substantially altering its characteristic properties for photolithographic applications. The CEL composite photoresist is immersed or treated with toluene or a mixture thereof in a particular manner.

    摘要翻译: 提供了一种从光致抗蚀剂表面剥离对比度增强层的方法,例如基于酚醛清漆的抗蚀剂,而基本上不改变其光刻应用的特性。 将CEL复合光刻胶以特定方式浸渍或处理甲苯或其混合物。

    Recovery of silver from photographic films by high shear conditions
    9.
    发明授权
    Recovery of silver from photographic films by high shear conditions 失效
    通过高剪切条件从照相胶片回收银

    公开(公告)号:US4612057A

    公开(公告)日:1986-09-16

    申请号:US693252

    申请日:1985-01-22

    IPC分类号: C22B11/02 G03C11/24 B08B7/04

    摘要: A method for the recovery of silver from photographic film having a polyester base and a macromolecular organic polymer coating to which is adhered a light sensitive silver emulsion layer. The process includes mixing small film pieces in a hot aqueous liquid having a solids concentration level of at least 25 percent by volume. The mixture is subjected to conditions of high shear to remove the silver emulsion. The liquid containing the silver emulsion is then separated from the film pieces and the silver is recovered from the liquid.

    摘要翻译: 从具有聚酯基底和高分子有机聚合物涂层的照相胶片中回收银的方法,其上粘附有感光性银乳剂层。 该方法包括将固体浓度至少为25体积%的热水性液体中的小薄片混合。 使混合物经受高剪切条件以除去银乳剂。 然后将含有银乳液的液体与膜片分离,并从液体中回收银。

    Method for the recovery of silver from waste photographic fixer solutions
    10.
    发明授权
    Method for the recovery of silver from waste photographic fixer solutions 失效
    从废物照相定影剂溶液中回收银的方法

    公开(公告)号:US4445935A

    公开(公告)日:1984-05-01

    申请号:US449312

    申请日:1982-12-13

    摘要: The method of the present invention is directed to the recovery of silver from spent photographic fixer solutions and for providing an effluent essentially silver-free that is suitable for discharge into commercial sewage systems. The present method involves the steps of introducing the spent photographic fixer solution into an alkaline hypochlorite solution. The oxidizing conditions of the alkaline hypochlorite solution are maintained during the addition of the fixer solution so that the silver ion complexing agents of thiosulfate and sulfite ions are effectively destroyed. Hydrazine monohydrate is then added to the oxidizing solution to form a reducing solution to effect the formation of a precipitate of silver which can be readily removed by filtration or decanting. Experimental tests indicate that greater than 99.99% of the original silver in the spent photographic fixer can be efficiently removed by practicing the present method. Also, the chemical and biological oxygen demand of the remaining effluent is significantly reduced so as to permit the discharge thereof into sewage systems at levels in compliance with federal and state environmental standards.

    摘要翻译: 本发明的方法涉及从废照相定影剂溶液中回收银并提供基本上不含银的流出物,其适于排放到商业污水系统中。 本方法包括将用过的照相定影剂溶液引入碱性次氯酸盐溶液的步骤。 碱性次氯酸盐溶液的氧化条件在添加定影剂溶液期间保持,使得硫代硫酸盐和亚硫酸根离子的银离子络合剂被有效地破坏。 然后将一水合肼加入到氧化溶液中以形成还原溶液以形成银沉淀物,其可以通过过滤或倾析而容易地除去。 实验测试表明,通过实施本方法可以有效地除去废照相定影剂中原始银的99.99%以上。 此外,剩余废水的化学和生物需氧量显着降低,以便允许以符合联邦和州环境标准的水平排放到污水系统中。