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    BUFFERED ACID CLEANER AND METHOD OF PRODUCTION
    1.
    发明申请
    BUFFERED ACID CLEANER AND METHOD OF PRODUCTION 审中-公开
    缓冲酸清洗剂及其生产方法

    公开(公告)号：US20060079424A1

    公开(公告)日：2006-04-13

    申请号：US11162749

    申请日：2005-09-21

    申请人： Stephen Perry

    发明人： Stephen Perry

    IPC分类号： C09D9/00

    CPC分类号： C23G1/083 ,  C11D3/1266 ,  C11D7/08 ,  C11D7/3272 ,  C11D11/0029 ,  C11D17/003 ,  C23G1/04 ,  C23G1/061 ,  C23G1/088

    摘要： A composition for cleaning oxide discoloration, rust, and high temperature-related scale from stainless steel and other metals. The composition comprises a nitrogen acid salt produced by the mixture of urea and an acid and a gelling agent. The preferred nitrogen acid salt used in the composition is urea hydrochloride, which is a buffered acid cleaner. Synthetic smectite clay is the preferred thixotropic gelling agent. Both of these ingredients are non-hazardous and do not produce any toxic or corrosive fumes. The invention also includes the method of preparing the composition.

    摘要翻译： 用于清洁不锈钢和其他金属的氧化物变色，锈蚀和高温相关尺度的组合物。 该组合物包含由脲与酸和胶凝剂的混合物产生的氮酸盐。 组合物中使用的优选的氮酸盐是作为缓冲酸清洁剂的尿素盐酸盐。 合成蒙脱石粘土是优选的触变胶凝剂。 这两种成分都是无害的，不产生任何有毒或腐蚀性烟雾。 本发明还包括制备组合物的方法。

    Moocxch
    2.
    发明授权
    Moocxch 失效

    公开(公告)号：US3124534A

    公开(公告)日：1964-03-10

    申请号：US3124534D

    IPC分类号： C23G1/04

    CPC分类号： C23G1/04

    Method for pickling iron and steel surfaces
    9.
    发明授权
    Method for pickling iron and steel surfaces 失效
    用于钢铁和钢表面的方法

    公开(公告)号：US5108544A

    公开(公告)日：1992-04-28

    申请号：US597686

    申请日：1990-10-16

    申请人： Lars A. H. Hakansson

    发明人： Lars A. H. Hakansson

    IPC分类号： C23F1/28 ,  C23G1/04 ,  C23G1/08 ,  C23G1/24

    CPC分类号： C23G1/24 ,  C23G1/04 ,  C23G1/08

    摘要： A method for pickling and/or etching iron and steel surfaces, in which the surfaces are treated in a pickling bath which contains inhibitors, mineral acids and metal salts of the anions of the acids. The inhibitor used is a mixture of tensides, silicates, phosphates and possibly oils, and the surfaces are preferably coated with inhibitor prior to being treated in the pickling bath. The surfaces are preferably first degreased with an aqueous tenside solution, therewith to emulsify hydrocarbons, such as grease and oils. Growth of microoganisms is stimulated for biological degradation of the hydrocarbons, by adding nutrient substances, whereafter the surfaces are treated in the pickling bath without intermediate rinsing.