Abstract: The present invention relates to a method for the production of a urea fertilizer with elemental sulphur from sulphur in liquid stage and a liquid urea melt. The surface tension between the two phases of sulphur and urea are influenced in the liquid stage at temperatures above the melting points, by supply of an additive being temperature stable and amphoteric to the liquid sulphur/urea melt to obtain a homogeneous mixed phase, that subsequently is distributed and solidified. The invention also relates to a urea-sulphur fertilizer where the fertilizer comprises urea and elemental sulphur and an additive being temperature stable and amphoteric.

Abstract: The present invention relates to a method for the production of a urea fertilizer with elemental sulphur from sulphur in liquid stage and a liquid urea melt. The surface tension between the two phases of sulphur and urea are influenced in the liquid stage at temperatures above the melting points, by supply of an additive being temperature stable and amphoteric to the liquid sulphur/urea melt to obtain a homogeneous mixed phase, that subsequently is distributed and solidified. The invention also relates to a urea-sulphur fertilizer where the fertilizer comprises urea and elemental sulphur and an additive being temperature stable and amphoteric.

Abstract: Process for the partial oxidation of a hydrocarbon feedstock, comprising the steps of gasification, partial oxidation and removal of the carbon by forming a soot water slurry containing the unburned carbon and ash and filtration of the soot water slurry to form a filtercake of carbon and ash, wherein the filter cake is dried by means of a fluid bed and the dried filtercake is burned at temperatures between 600.degree. C. and 1000.degree. C. Preferably The fluid bed is operated by means of a fluidizing gas at a temperature of at least 150.degree. C. The dried filtercake is burned under circumstances that carbon is left in the resulting ash.