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    • 1. 发明授权
    • Process for preparing sintered shapes and compositions used therein
    • 制备烧结形状和组合物的方法
    • US5527624A
    • 1996-06-18
    • US417500
    • 1995-04-05
    • William HigginsFred E. HellerReed H. WalshRalph E. KornbrekkeStephen A. DiBiase
    • William HigginsFred E. HellerReed H. WalshRalph E. KornbrekkeStephen A. DiBiase
    • C04B35/632B32B27/32
    • C04B35/632Y10T428/31504Y10T428/31938
    • The invention relates to a process for preparing sintered shapes, comprising the steps of:(1) forming a green body from a mixture comprising a major amount of at least one inorganic powder; and one or more additives selected from the group consisting of: (A) at least one reaction product of a hydroxy compound with a carboxylic acylating agent; (B) at least one Mannich reaction product; (C) at least one hydrocarbyl-substituted amine; (D) at least one aminophenol; (E) at least one reaction product of a nitrophenol and amino compound; (F) at least one basic nitrogen-containing polymer; (G) at least one carboxylic acylating agent; (H) at least one aromatic acid or derivative thereof; (I) at least one aromatic oxime; and (J) at least one overbased or gelled overbased metal salt of an acidic organic compound provided that when the carboxylic acylating agent is a hydrocarbyl-substituted carboxylic acylating agent and the hydrocarbyl group contains less than an average of 40 carbon atoms, then the carboxylic acylating agent is a polycarboxylic acylating agent; and(2) sintering the body. Sintered shapes made from the compositions of the present invention have relatively high fired densities and grain sizes; and relatively low pore volume.
    • 本发明涉及一种制备烧结形状的方法,包括以下步骤:(1)从包含大量至少一种无机粉末的混合物中形成生坯体; 和一种或多种选自以下的添加剂:(A)羟基化合物与羧酸酰化剂的至少一种反应产物; (B)至少一种曼尼希反应产物; (C)至少一种烃基取代的胺; (D)至少一种氨基苯酚; (E)硝基苯酚和氨基化合物的至少一种反应产物; (F)至少一种碱性含氮聚合物; (G)至少一种羧酸酰化剂; (H)至少一种芳族酸或其衍生物; (I)至少一种芳族肟; 和(J)酸性有机化合物的至少一种高碱性或胶凝高碱性金属盐,条件是当羧酸酰化剂是烃基取代的羧基酰化剂且烃基含有少于40个碳原子的平均值时, 酰化剂是多羧酸酰化剂; 和(2)烧结身体。 由本发明组合物制成的烧结形状具有较高的烧制密度和晶粒尺寸; 和相对较低的孔体积。
    • 8. 发明授权
    • Low-sulfur diesel fuels containing organometallic complexes
    • 含有有机金属配合物的低硫柴油燃料
    • US5376154A
    • 1994-12-27
    • US753517
    • 1991-09-03
    • Daniel T. DalyPaul E. AdamsNai Z. HuangScott T. JolleyFrederick W. KochChristopher J. KolpStephen H. StoldtReed H. WalshRichard A. DenisDennis M. Dishong
    • Daniel T. DalyPaul E. AdamsNai Z. HuangScott T. JolleyFrederick W. KochChristopher J. KolpStephen H. StoldtReed H. WalshRichard A. DenisDennis M. Dishong
    • C10L1/14C10L1/18C10L1/22C10L1/30C10L10/06F02B3/06C10L1/26
    • C10L10/06C10L1/14C10L1/301C10L1/183C10L1/221C10L1/223F02B3/06
    • This invention relates to low-sulfur diesel fuels which are useful with diesel engines equipped with exhaust system particulate traps. These fuels contain an effective amount of an organometallic complex to lower the ignition temperature of exhaust particles collected in the trap. The sulfur content of these diesel fuels is no more than about 0.1% by weight, preferably no more than about 0.05% by weight. The organometallic complex is soluble or stably dispersible in the diesel fuel and is derived from (i) an organic compound containing at least two functional groups attached to a hydrocarbon linkage, and (ii) a metal reactant capable of forming a complex with the organic compound (i), the metal being any metal capable of reducing the ignition temperature of the exhaust particles. The functional groups include .dbd.X, --XR, --NR.sub.2, --NO.sub.2, .dbd.NR, .dbd.NXR, .dbd.N--R*--XR, ##STR1## --CN, --N.dbd.NR and --N.dbd.CR.sub.2 ; wherein X is O or S, R is H or hydrocarbyl, R* is hydrocarbylene or hydrocarbylidene, and a is a number (e.g., zero to about 10). Useful metals include Na, K, Mg, Ca, Sr, Ba, Ti, Zr, V, Cr, Mo, Mn, Fe, Co, Cu, Zn, B, Pb, Sb, and mixtures of two or more thereof. This invention is also directed to methods of operating a diesel engine equipped with an exhaust system particulate trap using the foregoing low-sulfur diesel fuels.
    • 本发明涉及用于配备有排气系统颗粒捕集器的柴油发动机的低硫柴油燃料。 这些燃料含有有效量的有机金属络合物以降低在捕集器中收集的废气颗粒的着火温度。 这些柴油的硫含量不超过约0.1重量%,优选不超过约0.05重量%。 有机金属络合物可溶于或稳定分散于柴油中,并衍生自(i)含有连接至烃键的至少两个官能团的有机化合物,和(ii)能够与有机化合物形成络合物的金属反应物 (i)中,金属是能够降低排气颗粒的着火温度的任何金属。 官能团包括= X,-XR,-NR2,-NO2,= NR,= NXR,= N-R * -XR,图像-CN,-N = NR和-N = CR2; 其中X为O或S,R为H或烃基,R *为亚烃基或亚烃基,a为数(例如0至约10)。 有用的金属包括Na,K,Mg,Ca,Sr,Ba,Ti,Zr,V,Cr,Mo,Mn,Fe,Co,Cu,Zn,B,Pb,Sb及其两种或更多种的混合物。 本发明还涉及使用前述低硫柴油燃料来操作配备有排气系统微粒捕集器的柴油发动机的方法。