Process of recovering silver from photographic solutions and inhibiting
formation of undesirable precipitate
    2.
    发明授权
    Process of recovering silver from photographic solutions and inhibiting formation of undesirable precipitate 失效
    从照相溶液中回收银并抑制不期望的沉淀物的形成的方法

    公开(公告)号:US5496474A

    公开(公告)日:1996-03-05

    申请号:US351849

    申请日:1994-12-08

    IPC分类号: C02F1/66 C02F9/00 C02F1/62

    摘要: A process for inhibiting the formation of an unwanted precipitate comprising [H.sub.2-n TMT]Na.sub.n [HNR.sub.3 ] during the precipitation of silver mercapto-s-triazine (AgTMT) from a silver containing photoprocessing solution, comprising the steps of:(a) providing a base solution;(b) providing a reagent solution containing mercapto-s-triazine (TMT), or a water soluble salt thereof;(c) mixing the TMT reagent solution with the photoprocessing solution; and(d) adding sufficent base to increase the pH of the mixture of the TMT reagent and photoprocessing solutions above the pH of the mixture before addition of base, and the base is mixed:(i) directly to the photoprocessing solution before mixing TMT reagent with the photoprocessing solution; or(ii) with the photoprocessing solution concurrently with TMT reagent; or(iii) immediately after the point TMT reagent begins mixing with the photoprocessing solution.

    摘要翻译: 在从含银的光处理溶液中沉淀银巯基-s-三嗪(AgTMT)期间,抑制形成包含[H 2 -NTT] Nan [HNR 3]的不需要的沉淀物的方法,包括以下步骤:(a) 碱溶液; (b)提供含有巯基三嗪(TMT)或其水溶性盐的试剂溶液; (c)将TMT试剂溶液与光处理溶液混合; 和(d)添加足够的碱,以在加入碱之前将TMT试剂和光处理溶液的混合物的pH提高到混合物的pH以下,并将碱混合:(i)在混合TMT试剂之前直接与光处理溶液 与光处理解决方案; 或(ii)与TMT试剂同时使用光处理溶液; 或(iii)在TMT试剂开始与光处理溶液混合之后立即。

    Process of recovering silver from photographic solutions
    3.
    发明授权
    Process of recovering silver from photographic solutions 失效
    从摄影溶液中回收银的过程

    公开(公告)号:US5437792A

    公开(公告)日:1995-08-01

    申请号:US281382

    申请日:1994-07-27

    摘要: A process for removing silver from a silver containing photoprocessing solution, including the steps of:a) mixing a mercapto-s-triazine, or a water soluble salt thereof, with the solution thereby causing formation of a mixture of i) precipitates and fines of silver mercapto-s-triazine and ii) the solution;b) mixing a copolymer flocculant with the mixture thereby causing flocculation and agglomeration of the silver TMT fines; wherein the copolymer i) consist of monomers selected from the group consisting of acryloyloxyethyl trimethylamine chloride and acrylamide and ii) has a reduced viscosity of 21 to 30 dL/g.

    摘要翻译: 一种从含银的光处理溶液中除银的方法,包括以下步骤:a)将巯基-s-三嗪或其水溶性盐与该溶液混合,从而形成i)沉淀物和细粉的混合物 银巯基-s-三嗪和ii)溶液; b)将共聚物絮凝剂与混合物混合,从而引起银TMT细粉的絮凝和聚结; 其中共聚物i)由选自丙烯酰氧基乙基三甲胺氯化​​物和丙烯酰胺的单体组成,和ii)具有21至30dL / g的比浓粘度。

    Multi-part photographic color developing composition and methods of manufacture and use
    6.
    发明授权
    Multi-part photographic color developing composition and methods of manufacture and use 失效
    多部分照相彩色显影组合物及其制造和使用方法

    公开(公告)号:US06428946B2

    公开(公告)日:2002-08-06

    申请号:US09851890

    申请日:2001-05-09

    IPC分类号: G03C7413

    CPC分类号: G03C7/413 G03C5/266

    摘要: A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.

    摘要翻译: 多部分彩色显影试剂盒包括可以混合以提供用于获得彩色照相图像的彩色显影组合物的光化学组合物的至少两个部分(或溶液)。 第一水溶液配制为游离碱形式的彩色显影剂,彩色显影剂的抗氧化剂,无机碱,三嗪基茋荧光增白剂,化学碱和水混溶性或水溶性羟基取代的, 直链有机溶剂。 用缓冲剂,相同或不同的化学碱和膦酸金属离子螯合剂配制第二水溶液。 两种溶液具有pH和均匀性,以提供使用和处理更安全的透明的显色组合物。

    Method of making trialkali and triammonium salts of tmt
    10.
    发明授权
    Method of making trialkali and triammonium salts of tmt 失效
    制备三碱和三铵盐的方法

    公开(公告)号:US5563267A

    公开(公告)日:1996-10-08

    申请号:US421585

    申请日:1995-04-12

    IPC分类号: C07D251/38 C09K3/00

    CPC分类号: C07D251/38

    摘要: A method for making trialkali metal and triammonium salts of 2,4,6 trimercapto-s-triazine comprising the steps of:(a) forming a reaction mixture of an acetone solution of cyanuric chloride and an aqueous solution of sodium hydrosulfide hydrates;(b) stirring the mixture thereby forming 2,4,6-trimercapto-s-triazine;(c) acidifying the mixture to form a precipitate; and(d) dissolving the precipitate in a basic solution selected from alkali metal hydroxides and ammonium hydroxide thereby forming a trialkali metal or triammonium salt of 2,4,6 trimercapto-s-triazine.

    摘要翻译: 制备2,4,6-三巯基-s-三嗪的三碱金属和三铵盐的方法,包括以下步骤:(a)形成氰尿酰氯的丙酮溶液和氢硫化钠水合物的水溶液的反应混合物; (b)搅拌混合物,从而形成2,4,6-三巯基-s-三嗪; (c)酸化混合物以形成沉淀物; 和(d)将沉淀物溶解在选自碱金属氢氧化物和氢氧化铵的碱性溶液中,从而形成2,4,6-三巯基-s-三嗪的三碱金属或三铵盐。