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  • VECOM: Global Expert in Chemical Cleaning

    VECOM: Global Expert in Chemical Cleaning

  • FLUITEC Measure. Consult. Treat.

    FLUITEC Measure. Consult. Treat.

  • GEXCON: World-leading Safety Experts

    GEXCON: World-leading Safety Experts

  • GRANDPERSPECTIVE: We make visible the invisible hazard

    GRANDPERSPECTIVE: We make visible the invisible hazard

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For our complete overview of Safety Risks, Incidents and Near Misses, check out FIORDA

This invention is written together with patent 2933526 which describes a process which consists of a vacuum evaporation stage, a cooling phase with air until nearly the crystallization temperature and that a further cooling against urea fines leading to a free flowing product with a crushing strength of 30 kg/cm2, a biuret figure lower than 2 wt% and a low moisture content of 0.1-0.2 wt%.
A further improvement to reduce the biuret content is described in this patent, which is accomplished by maintaining a gaseous phase of ammonia in the vacuum evaporation  stage and cooling phase. The biuret figure reduces then to 1 wt%.