Abstract: The invention relates to sheet metal or a sheet metal blank provided with a lubricant coating, especially an anti-corrosion oil of the Pre-Lube or Dry Lube variety. The sheet metal or sheet metal blank comprises a layer which is formed by applying a solution containing an organic phosphoric acid ester to the metal surface of the sheet metal. Sheet metal provided with said coating has excellent tribological properties.

Abstract: Solid, finely divided fuels based on coal with a particle size distribution according to which at least 90% of the particles have a size of less than 90 .mu.m, whereby the fuel contains 0.1 to 5 wt % calcium compounds and 0.01 to 1 wt % of a halogen-free and sulfur-free water-soluble iron compound, each based on dry weight, plus calcium and iron, permit an effective reduction n nitrogen oxide emissions in combustion gases when produced in such a way that the coal is impregnated with a 5 to 60 wt % aqueous solution of the iron salt and separately from that is also impregnated with a 10 to 75 wt % solution or suspension of calcium hydroxide and water in the absence of briquetting or pelletizing binders and then is milled in a milling and drying installation and dried to a water content of less than 1 wt %.