Electrolytic silver refining process and apparatus
    3.
    发明授权
    Electrolytic silver refining process and apparatus 失效
    电解银精制工艺及装置

    公开(公告)号:US4670115A

    公开(公告)日:1987-06-02

    申请号:US642986

    申请日:1984-08-22

    IPC分类号: C25C1/20

    CPC分类号: C25C1/20

    摘要: In an electrolytic silver refining process, crude silver is anodically dissolved while refined silver is cathodically deposited and at the accompanying (impurity) metals are selectively extracted from the used (spent) electrolyte and transferred to an aqueous phase. The used electrolyte is enriched in silver and accompanying metals are cathodically deposited and thus removed from the electrolyte. For this purpose, a specific electrolysis cell is provided. The cell being preferably a diaphragm cell with an anionic diaphragm. The extraction of the accompanying metals is achieved by liquid membrane permeation, preferably combined with solvent extraction.

    摘要翻译: 在电解银精炼过程中,粗银被阳极溶解,而精制银被阴极沉积,并且伴随(杂质)金属从所用(废)电解质中选择性提取并转移到水相中。 所使用的电解质富含银,伴随的金属被阴极沉积,从而从电解质中除去。 为此,提供了特定的电解槽。 电池优选为具有阴离子膜片的隔膜电池。 伴随金属的萃取通过液膜渗透实现,优选与溶剂萃取相结合。

    Apparatus for mixing media capable to flow
    4.
    发明授权
    Apparatus for mixing media capable to flow 失效
    用于混合能够流动的介质的装置

    公开(公告)号:US4989988A

    公开(公告)日:1991-02-05

    申请号:US218306

    申请日:1988-07-13

    CPC分类号: B01F5/0646 B01F5/0415

    摘要: An apparatus for fine-mixing, dispersing, and emulsifying media capable to flow, such as gases or fluids, comprising an injection nozzle for injecting the pre-mixed media and a hollow body with a bore, disposed mirror-inverted and at a small distance thereto, the outlet end of said nozzle and inlet end of said hollow body, seen in the direction of flow, being a part of an annular gap working as pre-emulsifying chamber. For intensifying the mixing and effecting a pre-emulsification, the hollow body with the bore is sharp-edged. The apparatus further comprises a following homogenizing chamber having at its internal walls means for enhancing the turbulence of the mixture.If no pre-mixed media are used, it is also possible to provide for one or more channels, disposed perpendicularly to the injection nozzle and reaching into said annular gap for injecting a second medium or further media.The small, sharp-edged annular gap and the means for enhancing the turbulence of the mixture in the homogenizing chamber provide for a very good and stable emulsion needing less energy than known apparatus.

    Process for producing alcohol-reduced or alcohol-free beverages made by
natural fermentation
    5.
    发明授权
    Process for producing alcohol-reduced or alcohol-free beverages made by natural fermentation 失效
    用于生产通过天然发酵制成的醇还原或无酒精饮料的方法

    公开(公告)号:US4867997A

    公开(公告)日:1989-09-19

    申请号:US940138

    申请日:1986-12-10

    IPC分类号: B01D11/02 C12G3/08 C12H3/02

    摘要: A process is described for preparing in particular alcohol-free wine in which by extraction with supercritical CO.sub.2 firstly a specific aroma fraction with limited ethanol content is separated from the starting wine. The residual wine is then subjected to a vacuum distillation in which apart from the complete separation of the ethanol from the residual wine a fraction of more difficulty extractable aromatic substances not affected by the extraction is recovered which in the end together with the extract is added to the dealcoholized residual wine again to obtain an alcohol-free wine. The method permits an almost complete removal of the alcohol content without detrimentally affecting the basic wine and with retention of all the aromatic and flavoring substances characteristic of the wine.

    摘要翻译: 描述了一种用于制备特别是不含酒精的葡萄酒的方法,其中通过用超临界CO 2萃取,首先将具有有限乙醇含量的特定香味部分与起始酒分离。 然后对残余的葡萄酒进行真空蒸馏,除了乙醇与残余酒精的完全分离之外,回收不能被萃取物影响的难以提取的芳族物质的一部分,其最终与提取物一起加入 脱醇酒余酒再次获得无酒精酒。 该方法允许几乎完全除去酒精含量,而不会不利地影响基本的葡萄酒,并保留葡萄酒特有的所有芳香和调味物质。