Copper-containing organometallic complexes and concentrates and diesel fuels containing same

US5562742A · kind A · utility

Assignee

• The Lubrizol Corporation · US

Inventors

• Christopher J. Kolp · Euclid, US
• Daniel T. Daly · Maumee, US
• Nai Z. Huang · Cambridge, US
• Scott T. Jolley · Mentor, US
• Frederick W. Koch · Willoughby Hills, US
• Stephen H. Stoldt · Powell, US
• Reed H. Walsh · Mentor, US
• Richard A. Denis · Parma Heights, US

Key dates

• Filing date: Jun 23, 1994
• Grant date: Oct 8, 1996
• Expiry date: Jun 23, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02B3/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to copper-containing organometallic complexes, and to concentrates and diesel fuels containing said complexes. The diesel fuels are useful with diesel engines equipped with exhaust system particulate traps. The copper-containing organometallic complex is used for lowering the ignition temperature of exhaust particles collected in the trap. The copper-containing 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 copper-containing metal reactant capable of forming a complex with the organic compound (i). The functional groups are .dbd.X, --XR, --NR., --NO., .dbd.NR, .dbd.NXR, .dbd.N--R*--XR, ##STR1## --CN, --N.dbd.NR or --N.dbd.CR.; 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). The copper can be combined with one or more metals selected from the group consisting Na, K, Mg, Ca, Sr, Ba, V, Cr, Mo, Fe, Co, Zn, B, Pb, Sb, Ti, Mn and Zr. This invention is also directed to methods of operating a diesel engine equipped with an exhau…