Use of carbonyl compounds as markers
    42.
    发明授权
    Use of carbonyl compounds as markers 失效
    使用羰基化合物作为标记物

    公开(公告)号:US5984983A

    公开(公告)日:1999-11-16

    申请号:US206020

    申请日:1998-12-04

    Abstract: Carbonyl compounds, such as ketones, aldehydes, esters, amides, anhydrides and carboxylic acids are added to a material, particularly a liquid material as markers. Subsequently the carbonyl compound(s) are identified by measuring the absorbency peak(s) of the carbonyl compounds in the mid-IR range. Carbonyl compounds soluble in non-polar solvents and substantially insoluble in water are particularly suitable for tagging and identifying petroleum fuels. For use in petroleum fuels, the carbonyl compound(s) preferably contains no element other than carbon, hydrogen, oxygen and nitrogen. Digital carbonyl marker systems, i.e., systems containing two or more carbonyl compounds in predetermined ratios, can be determined quantitatively with instruments, such as SpecTrace.TM. which measure absorbance in the mid-IR region.

    Abstract translation: 将羰基化合物如酮,醛,酯,酰胺,酸酐和羧酸加入到材料,特别是液体材料中作为标记物。 随后,通过测量中间IR范围内羰基化合物的吸收峰值来鉴定羰基化合物。 可溶于非极性溶剂且基本上不溶于水的羰基化合物特别适用于标记和鉴定石油燃料。 对于用于石油燃料中,羰基化合物优选不含碳,氢,氧和氮以外的元素。 数字羰基标记体系,即含有两个或多个预定比例的羰基化合物的体系可以用仪器定量测定,例如测量中红外区域的吸光度的SpecTrace TM。

    Detection of marked mineral oils and novel azo dyes
    46.
    发明授权
    Detection of marked mineral oils and novel azo dyes 失效
    检测标记矿物油和新偶氮染料

    公开(公告)号:US5487770A

    公开(公告)日:1996-01-30

    申请号:US321629

    申请日:1994-10-12

    Abstract: Method for detecting marked mineral oils by treating the marked mineral oil with an extractant comprising water, a solvent and a base comprises using as marker an azo dye of the formula ##STR1## where ring A may be benzofused,m is from 1 to 4,X.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano or nitro,X.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano, nitro, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.16 -alkoxycarbonyl,X.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl, cyano or C.sub.1 -C.sub.16 -alkoxycarbonyl, andX.sup.4 is hydrogen, hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, amino, C.sub.1 -C.sub.4 -dialkylamino or substituted or unsubstituted C.sub.1 -C.sub.16 -monoalkylamino,as solvent a partially or completely water-miscible organic solvent, and as base an alkali or alkaline earth metal hydroxide, an alkali metal carbonate or a quaternary ammonium hydroxide, the use of azo dyes as markers for mineral oils, and novel azo dyes.

    Abstract translation: 通过用包含水,溶剂和碱的萃取剂处理标记的矿物油来检测标记的矿物油的方法包括使用式为“IMAGE”的偶氮染料作为标记,其中环A可被苯并稠合,m为1至4, X 1是氢,C 1 -C 4 - 烷基,氰基或硝基,X 2是氢,C 1 -C 4 - 烷基,氰基,硝基,C 1 -C 4 - 烷氧基或C 1 -C 16 - 烷氧羰基,X 3是氢,C 1 -C 4烷基, 氰基或C 1 -C 16 - 烷氧基羰基,X 4是氢,羟基,取代或未取代的C 1 -C 8 - 烷基,C 1 -C 4 - 烷氧基,氨基,C 1 -C 4 - 二烷基氨基或取代或未取代的C 1 -C 16单烷基氨基,作为溶剂a 部分或完全水溶性有机溶剂,碱金属或碱土金属氢氧化物,碱金属碳酸盐或季铵氢氧化物作为碱,使用偶氮染料作为矿物油的标记物和新型偶氮染料。

    Liquid hydrocarbons containing a fluorescent compound
    48.
    发明授权
    Liquid hydrocarbons containing a fluorescent compound 失效
    含有荧光化合物的液体烃

    公开(公告)号:US4278444A

    公开(公告)日:1981-07-14

    申请号:US142799

    申请日:1980-04-22

    CPC classification number: C10L1/003

    Abstract: Method of determining the presence of one or more liquid hydrocarbons in a liquid hydrocarbon mixture, the method having the step of adding to the hydrocarbon or hydrocarbons to be detected a minor amount of an alkylated isodibenzanthrone.

    Abstract translation: 一种确定液体烃混合物中一种或多种液态烃的存在的方法,该方法具有以下步骤:将少量烷基化的异二苯并二恶烷加入待检测的烃或烃中。

    2-(2{40 ethylhexyl)-quinizarin
    49.
    发明授权
    2-(2{40 ethylhexyl)-quinizarin 失效
    2-(2 {40乙基] - 喹唑啉

    公开(公告)号:US3883568A

    公开(公告)日:1975-05-13

    申请号:US35996373

    申请日:1973-05-14

    Abstract: A new alkylated quinizarin, 2(2-ethylhexyl) quinizarin, useful for marking water immiscible organic liquids; marked water immiscible organic liquids; and a method of marking said liquids with an additive which may be subsequently extracted from said liquid and easily identified by visual inspection. The method comprises dissolving in the liquid to be marked an additive selected from the group consisting of an alkylated quinizarin, the reaction product of diazotized ortho tolidine and pnonylphenol and of diazotized xylidine and p-nonylphenol. The additive is detected by extraction from the marked liquid by means of a water soluble polar organic solvent containing a base and from 0 to about 75 percent by weight of water to yield a distinctively colored extract which is identified by visual inspection. The identification may be further corroborated by chromatographic separation of the additive or by spectrophotometric analysis.

    Abstract translation: 用于标记水不混溶有机液体的新的烷基化醌arin嗪(2(2-乙基己基)醌iz嗪) 标记水不混溶有机液体; 以及用添加剂对所述液体进行标记的方法,所述添加剂随后可以从所述液体中提取并且通过目视检查容易地识别。 该方法包括溶解在待标记的液体中,该添加剂选自烷基化的醌iz嗪,重氮化的邻甲苯胺和对壬基苯酚的反应产物和重氮化二甲苯胺和对壬基苯酚。 通过含有碱和0至约75重量%的水的水溶性极性有机溶剂从标记液体中萃取来检测添加剂,以产生通过目视检查鉴别的独特色的提取物。 可以通过添加剂的色谱分离或通过分光光度分析进一步证实该鉴定。

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