Recovering polyoxyalkylene glycols from wastewater
    3.
    发明授权
    Recovering polyoxyalkylene glycols from wastewater 失效
    从废水中回收聚氧亚烷基二醇

    公开(公告)号:US5425884A

    公开(公告)日:1995-06-20

    申请号:US231001

    申请日:1994-04-21

    Applicant: Frank K. Botz

    Inventor: Frank K. Botz

    CPC classification number: C08L71/02

    Abstract: A method has been discovered for recovering polyoxyalkylene glycols from wastewater. A skimming surface is heated to a temperature above the cloud point. The heated surface is contacted with the wastewater, causing the polymer to deposit. Deposited polymer skimmed from the surface is recovered. Heating, or other processing of the bulk wastewater is avoided.

    Abstract translation: 已经发现从废水中回收聚氧亚烷基二醇的方法。 撇渣表面被加热到高于浊点的温度。 加热的表面与废水接触,导致聚合物沉积。 回收从表面脱落的沉积聚合物。 避免了散装废水的加热或其他加工。

    System and process for recycling aqueous cleaners
    4.
    发明授权
    System and process for recycling aqueous cleaners 失效
    回收水性清洁剂的系统和工艺

    公开(公告)号:US5232460A

    公开(公告)日:1993-08-03

    申请号:US729131

    申请日:1991-07-12

    Applicant: Frank K. Botz

    Inventor: Frank K. Botz

    CPC classification number: C23G1/36

    Abstract: A system and process for recycling alkaline aqueous cleaners for electronic components. Such cleaners generally contain saponifiers which react with rosin flux on the electronic components to form rosin soaps. Spent cleaner is concentrated, the pH is lowered to cause a separation between the cleaner and the soils within the cleaner. The cleaner then is filtered to further remove any soils. The filtered cleaner is then reconstituted to a determined concentration and pH level and returned to the cleaning system.

    Abstract translation: 用于回收电子部件的碱性水性清洁剂的系统和方法。 这样的清洁剂通常含有与电子部件上的松香助熔剂反应以形成松香皂的皂化剂。 净化剂被浓缩,pH降低,导致清洁剂和清洁剂内的土壤之间分离。 然后将清洁剂过滤以进一步除去任何污垢。 然后将经过滤的清洁剂重构至确定的浓度和pH水平并返回到清洁系统。

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