Additive compositions for fuels comprising nitrogen-containing products
incorporating two imide rings and fuels containing them
    93.
    发明授权
    Additive compositions for fuels comprising nitrogen-containing products incorporating two imide rings and fuels containing them 失效
    用于燃料的添加剂组合物,其包含含有两个酰亚胺环的含氮产物和含有它们的燃料

    公开(公告)号:US5425788A

    公开(公告)日:1995-06-20

    申请号:US145542

    申请日:1993-11-04

    Abstract: An additive composition for fuels comprising at least one constituent (A) and at least one constituent (B), the said constituent (A) comprising at least one multinitrogen-containing compound of general formula (I): ##STR1## where R.sup.1 and R.sup.2, which are the same or different each represent a hydrocarbon group or a group of formula R.sup.5 --(--O--R.sup.6 --).sub.a --(--O--R.sup.7 --).sub.b --, R.sup.3 is a hydrocarbon group or a group of formula R.sup.8 --(--X--R.sup.9 --).sub.c --(--X--R.sup.1 O--).sub.d --(--X--R.sup.1 1--).sub.e -- in which X is selected from the groups --O-- and --NR.sup.1 2--, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.1 0 and R.sup.1 1 each represent a hydrocarbon group, a, d and e are each zero or a whole number, b and c are each a whole number, R.sup.4 and R.sup.1 2 each represent a hydrogen atom or a hydrocarbon group and n is a number from 0 to 20 and the said constituent (B) comprises at least one polyglycol which is soluble in the fuel in question. The additive composition may also contain a detergent-dispersant product. These compositions are useful as multipurpose additives for fuels used in internal combustion engines, in particular in spark ignition engines.

    Abstract translation: 一种用于燃料的添加剂组合物,其包含至少一种组分(A)和至少一种组分(B),所述组分(A)包含至少一种通式(I)的含多含氮化合物: IMAGE>其中相同或不同的R 1和R 2表示烃基或式R 5 - ( - O-R 6 - )a - ( - O-R 7 - )b - 的基团,R 3是烃基或 式中R8为 - ( - X-R9-)c - ( - X-R1O-)d - ( - X-R11-)e-,其中X选自基团-O-和-NR12-​​,R5 ,R 6,R 7,R 8,R 9,R 10和R 11各自表示烃基,a,d和e各自为零或整数,b和c各自为整数,R 4和R 12各自表示氢原子或 烃基,n是0至20的数,所述组分(B)包含至少一种可溶于所述燃料的聚二醇。 添加剂组合物还可以含有洗涤剂分散剂产品。 这些组合物可用作用于内燃机,特别是火花点火发动机中的燃料的多用途添加剂。

    Mixtures of fatty alkyl lower alkyl esters having improved
low-temperature stability
    95.
    发明授权
    Mixtures of fatty alkyl lower alkyl esters having improved low-temperature stability 失效
    具有改善的低温稳定性的脂肪烷基低级烷基酯的混合物

    公开(公告)号:US5389113A

    公开(公告)日:1995-02-14

    申请号:US78197

    申请日:1993-08-17

    CPC classification number: C10L1/026 F02B3/06 Y02E50/13

    Abstract: Mixtures containinga) 58 to 95% by weight of at least one ester with an iodine value of 50 to 150 derived from fatty acids containing 12 to 22 carbon atoms and lower aliphatic alcohols containing 1 to 4 carbon atoms,b) 4 to 40% by weight of at least one ester of fatty acids containing 6 to 14 carbon atoms and lower aliphatic alcohols containing 1 to 4 carbon atoms andc) 0.1 to 2% by weight of at least one polymeric ester, are distinguished by particular low-temperature stability and can be used as a fuel for diesel engines.

    Abstract translation: PCT No.PCT / EP91 / 02312 Sec。 371日期:1993年8月17日 102(e)日期1993年8月17日PCT 1991年12月4日PCT PCT。 公开号WO92 / 11345 日期:1992年7月9日。含有a)58至95重量%的至少一种碘值为50至150的酯,衍生自含有12至22个碳原子的脂肪酸和含有1至4个碳原子的低级脂族醇 ,b)4至40重量%的至少一种含6至14个碳原子的脂肪酸酯和含有1至4个碳原子的低级脂族醇和c)0.1至2重量%的至少一种聚合酯,分别为 区别于特定的低温稳定性,可用作柴油发动机的燃料。

    Dispersing asphaltenes in hydrocarbon refinery streams with
.alpha.-olefin/maleic anhydride copolymer
    98.
    发明授权
    Dispersing asphaltenes in hydrocarbon refinery streams with .alpha.-olefin/maleic anhydride copolymer 失效
    用α-烯烃/马来酸酐共聚物在烃精炼料流中分散沥青质

    公开(公告)号:US5214224A

    公开(公告)日:1993-05-25

    申请号:US910230

    申请日:1992-07-09

    Abstract: Dispersing asphaltenes in liquid hydrocarbons, particularly formed during the refining of crude petroleum, is disclosed. The dispersant comprises a free radically polymerized copolymer of an .alpha.-olefin of from about 10 to about 36 carbon atoms and maleic anhydride wherein the anhydride moieties along the copolymer backbone are substantially unhydrolyzed or otherwise not derivatized. The copolymer has a ratio of .alpha.-olefin to maleic anhydride of from about 1:1 to about 1:5 and a molecular weight of from 5000 to about 100,000. Alternatively the dispersant comprises a mixture of the .alpha.-olefin/maleic anhydride copolymer and an alkyl substituted phenol/formaldehyde liquid polymer, such as nonyl phenol/formaldehyde polymer, or a lipophilic/hydrophilic vinylic polymer, such as hydroxyethyl methacrylate/lauryl acrylate copolymer. Also disclosed is a liquid hydrocarbon dispersion containing asphaltenes and 1-100 ppm of the .alpha.-olefin/maleic anhydride copolymer.

    Abstract translation: 公开了在石油精炼期间特别形成的液体烃中沥青质分散体。 分散剂包含约10至约36个碳原子的α-烯烃和马来酸酐的自由基聚合共聚物,其中沿着共聚物主链的酸酐部分基本上未水解或以其它方式不衍生。 共聚物的α-烯烃与马来酸酐的比例为约1:1至约1:5,分子量为5000至约100,000。 或者,分散剂包括α-烯烃/马来酸酐共聚物和烷基取代的酚/甲醛液体聚合物如壬基苯酚/甲醛聚合物或亲脂性/亲水性乙烯基聚合物如甲基丙烯酸羟乙酯/丙烯酸月桂酯共聚物的混合物。 还公开了含有沥青质和1-100ppm的α-烯烃/马来酸酐共聚物的液体烃分散体。

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