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1. 发明授权

US5094946A Enzymatic processing of materials containing chromium and protein 失效
标题翻译：含铬和蛋白质的材料的酶加工
公开(公告)号：US5094946A
公开(公告)日：1992-03-10
申请号：US476843
申请日：1990-02-08
申请人： Maryann M. Taylor , Edward J. Diefendorf , George C. Na , William N. Marmer
发明人： Maryann M. Taylor , Edward J. Diefendorf , George C. Na , William N. Marmer
IPC分类号： C02F3/34 , C12P21/06 , C12S7/00
CPC分类号： C02F3/342 , C12P21/06 , C02F2103/24 , Y10S210/913
摘要： Materials containing both chromium and protein and treated by processes which include the steps of: combining a material to be treated (i.e. containing both chromium and protein) with sufficient water to produce a mixture having from about 75 wt. % water to about 95 wt. % water, and an additive which both provides an alkaline pH and provides calcium or magnesium as an enzyme cofactor. The mixture is thereafter held at a temperature of from about 60.degree. C. to about 75.degree. C. for a period of time of from about 0.5 hour to about 4 hours. Subsequently, at least one enzyme is utilized to hydrolyze the protein, thus producing a product containing solubilized hydrolyzed protein and insoluble chromium. After separation of the soluble fraction from the insoluble fraction, the chrome in the insoluble residue may be recycled into the pickling or tanning process, and the essentially chrome-free protein hydrolyzate is potentially useful as an ingredient in feeds, fertilizers, and cosmetics. The processes of the present invention are used to particular advantage to treat wastes from the leather tanning industry, for example, material such as blue stock, chrome shavings, chrome buffing dust, chrome cakes and chrome sludges.
摘要翻译：含有铬和蛋白质并且通过方法处理的材料包括以下步骤：将待处理材料（即含有铬和蛋白质）与足够的水组合以产生具有约75wt。％水至约95wt。％的水和添加剂，其都提供碱性pH并提供钙或镁作为酶辅因子。然后将混合物在约60℃至约75℃的温度下保持约0.5小时至约4小时的时间。随后，使用至少一种酶水解蛋白质，从而产生含有溶解的水解蛋白质和不溶性铬的产品。在将可溶性级分与不溶性级分分离后，不溶残留物中的铬可以再循环到酸洗或鞣制过程中，并且基本上无铬的蛋白质水解产物作为饲料，肥料和化妆品中的成分潜在地有用。本发明的方法特别有利于处理皮革制革工业中的废物，例如蓝色原料，铬屑，铬抛光粉，铬饼和铬泥等材料。

2. 发明授权

US5271912A Enzymatic processing of materials containing chromium and protein 失效
标题翻译：含铬和蛋白质的材料的酶加工
公开(公告)号：US5271912A
公开(公告)日：1993-12-21
申请号：US848775
申请日：1992-03-10
申请人： Maryann M. Taylor , Edward J. Diefendorf , Willian N. Marmer , Eleanor M. Brown
发明人： Maryann M. Taylor , Edward J. Diefendorf , Willian N. Marmer , Eleanor M. Brown
IPC分类号： C01G37/00 , C02F3/34 , C12P21/06 , C12S7/00 , C14C3/32 , C22B34/32 , C12J7/00
CPC分类号： C02F3/342 , C01G37/00 , C12P21/06 , C14C3/32 , C22B34/32 , C02F2103/24 , Y02W30/76 , Y10S210/913
摘要： Chromium containing protein materials are treated by processes which include the steps of: combining the material to be treated with sufficient water to effect the solubilization of the gelable protein recovered therefrom, and an alkali additive. The mixture is thereafter held at a temperature of from about 60.degree. C. to about 85.degree. C. for a period of time of from about 0.5 hour to about 8 hours. The mixture is then filtered to remove the aqueous phase, which contains solubilized gelable protein. Subsequently, water is again added to the resultant chrome-containing proteinaceous cake and at least one enzyme is utilized to hydrolyze the remaining protein thus producing a product containing solubilized partially hydrolyzed protein and insoluble chromium. After separation, the chrome in the insoluble residue may be recycled into the pickling or tanning process, and the essentially chrome-free protein components may be used as ingredients in feeds, fertilizers, and cosmetics. The processes of the present invention are used to particular advantage to treat wastes from the leather tanning industry including blue stock, chrome shavings, chrome buffing dust, chrome cakes and chrome sludges.
摘要翻译：含铬蛋白质材料通过包括以下步骤的方法处理：将待处理的材料与足够的水组合以实现从其回收的可胶凝蛋白的溶解，以及碱添加剂。然后将混合物在约60℃至约85℃的温度下保持约0.5小时至约8小时的时间。然后过滤混合物以除去含有溶解的可胶凝蛋白的水相。随后，再向所得含铬蛋白质滤饼中加入水，并使用至少一种酶来水解剩余的蛋白质，从而产生含有溶解的部分水解蛋白质和不溶性铬的产物。分离后，不溶残留物中的铬可以再循环到酸洗或鞣制过程中，并且基本上不含铬的蛋白质组分可以用作饲料，肥料和化妆品中的成分。本发明的方法特别有利于处理皮革制革行业的废物，包括蓝色原料，铬屑，铬抛光粉，铬蛋糕和铬泥。

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