ENVIRONMENTAL SUBSEA CONTROL HYDRAULIC FLUID COMPOSITIONS
    72.
    发明公开
    ENVIRONMENTAL SUBSEA CONTROL HYDRAULIC FLUID COMPOSITIONS 有权
    VERWENDUNGUMWELTVERTRÄGLICHERHYDRAULIKFLÜSSIGKEITSZUSAMMENSETZUNGENZUR UNTERWASSERKONTROLLE

    公开(公告)号:EP2470627A1

    公开(公告)日:2012-07-04

    申请号:EP10812455.3

    申请日:2010-06-28

    IPC分类号: C10M163/00

    摘要: An aqueous hydraulic fluid composition comprising (i) a salt of formic acid, and (ii) one or more lubricants such as a monovalent metal salt, ammonium, or amine salt of a dicarboxylic acid, is described in which the aqueous hydraulic fluid composition demonstrates increased thermal stability when exposed to elevated temperatures for a prolonged period of time while being able to tolerate the presence of 10% v/v synthetic seawater. The aqueous hydraulic fluid composition contains less than about 20% by weight (preferably none or substantially none) of an oil selected from the group consisting of mineral oils, synthetic hydrocarbon oils, and mixtures thereof. The hydraulic fluid preferably contains no glycols in some embodiments. The pH of the hydraulic fluid is preferably from 8 to 10 and is maintained by a buffer which preferably comprises borax in some embodiments.

    摘要翻译: 一种水性液压组合物,其包含(i)甲酸盐和(ii)一种或多种润滑剂,例如二羧酸的一价金属盐,铵或胺盐,其中水性液压组合物显示出 当暴露于升高的温度持续较长时间,同时能耐受10%v / v合成海水的存在时,增加了热稳定性。 水性液压组合物含有选自矿物油,合成烃油及其混合物中的少于约20重量%(优选没有或基本上没有)油。 在一些实施方案中,液压油优选不含二醇。 液压流体的pH优选为8至10,并且在一些实施方案中由优选包含硼砂的缓冲液维持。