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    CATALYST-FREE METHOD FOR DEGRADING DIOXANE IN ALKYL ETHER SULFATE VACUUM REMOVAL WATER
    12.
    发明申请
    CATALYST-FREE METHOD FOR DEGRADING DIOXANE IN ALKYL ETHER SULFATE VACUUM REMOVAL WATER 有权

    公开(公告)号：US20230116436A1

    公开(公告)日：2023-04-13

    申请号：US18078251

    申请日：2022-12-09

    Applicant: Stepan Company

    Inventor： Matthew V. Vollmer ,  Donald E. Oulman ,  Aaron Brown ,  Dennis Smith ,  Doug Gustafson ,  Terry Applebury

    IPC: C02F1/72 ,  C02F1/78 ,  C02F1/42 ,  C02F1/28 ,  C02F1/02

    Abstract: A method of degrading 1,4-dioxane in the wastewater produced during the manufacture of alkyl ether sulfates is disclosed. The method includes the steps of (a) mixing from 100 to 10,000 ppm, preferably 1,000 to 4,000 ppm of ozone with the wastewater; (b) introducing H2O2 into the wastewater in an amount of 0.01 to 10, preferably 0.1 to 0.5 molar equivalents of H2O2 to ozone, and (c) mixing the ozone, H2O2, and wastewater to generate hydroxyl radicals reactive with the 1,4-dioxane, without the addition of a metal catalyst. The hydroxyl radicals react with the 1,4-dioxane and degrade it into carbon dioxide, water and/or carbonate. The method is effective to reduce a concentration of 1,4-dioxane in the wastewater from a range of about 10 ppm to about 1000 ppm of dioxane down to less than 5 ppb of 1,4-dioxane after treatment. The method is also effective for removing hydrocarbon species that may be present in the wastewater.

    AQUEOUS HARD SURFACE CLEANERS BASED ON TERPENES AND FATTY ACID DERIVATIVES
    20.
    发明申请
    AQUEOUS HARD SURFACE CLEANERS BASED ON TERPENES AND FATTY ACID DERIVATIVES 审中-公开
    基于食品和脂肪酸衍生物的水性硬表面清洁剂

    公开(公告)号：US20150098745A1

    公开(公告)日：2015-04-09

    申请号：US14395090

    申请日：2013-04-12

    Applicant: Stepan Company

    Inventor： Aaron Brown ,  Wilma Gorman ,  Ronald A. Masters

    IPC: C11D11/00 ,  B43K29/05 ,  C11D3/32 ,  C11D3/10 ,  C11D1/83 ,  C11D3/18

    CPC classification number: C11D11/0023 ,  B43K29/05 ,  C11D1/46 ,  C11D1/521 ,  C11D1/528 ,  C11D1/645 ,  C11D1/65 ,  C11D1/83 ,  C11D1/835 ,  C11D1/94 ,  C11D3/10 ,  C11D3/188 ,  C11D3/2037 ,  C11D3/2062 ,  C11D3/32 ,  C11D11/0052 ,  C11D17/046

    Abstract: Aqueous hard surface cleaner compositions useful for removing permanent ink are disclosed. The compositions comprise 75 to 99 wt. % of water; 0.1 to 5 wt. % of a monoterpene; 0.1 to 5 wt. % of a C10-C17 fatty acid derivative; and 0.1 to 5 wt. % of one or more surfactants. The fatty acid derivative is selected from N,N-dialkyl amides, N,N-dialkyl esteramines, and N,N-dialkyl amidoamines. Preferably, a base such as sodium carbonate or monoethanolamine is also included. The invention includes concentrates comprising the non-aqueous components recited above, as well as other applications for the cleaners and concentrates such as graffiti removers and permanent ink erasers. The combination of a monoterpene and certain fatty acid derivatives, especially fatty N,N-dialkyl amides, unexpectedly enables even dilute aqueous compositions to rapidly decolorize black permanent marker from hard, non-porous surfaces.

    Abstract translation: 公开了用于去除永久性油墨的水性硬表面清洁剂组合物。 组合物包含75至99wt。 ％的水; 0.1〜5重量％ ％的单萜; 0.1〜5重量％ ％的C 10 -C 17脂肪酸衍生物; 和0.1〜5wt。 ％的一种或多种表面活性剂。 脂肪酸衍生物选自N，N-二烷基酰胺，N，N-二烷基酯胺和N，N-二烷基酰氨基胺。 优选还包括碱如碳酸钠或单乙醇胺。 本发明包括浓缩物，其包含上述非水性组分，以及清洁剂和浓缩物如涂鸦去除剂和永久性墨水擦除剂的其它应用。 单萜和某些脂肪酸衍生物，特别是脂肪N，N-二烷基酰胺的组合意外地使得甚至稀释的含水组合物能够从硬的，无孔的表面快速脱色黑色永久标记。

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