Budapesti Muszaki Egyetem

Peti Nitrogenmuvek

Novenyolajipari Es Mososzergyarto Vallalat

Sandor Gal

Erno Pungor

Geza Siposs

Margit Szeiler Nee Nemeth

Adorjan Monostory

Jozsef Barlai

Bela Eross

Jozsef Gulyas

Janisz Sztatisz

Jeno Zolnay

Eva Kurucz

Jozsef Barics

Lajos Kollar

Janos Hollo

Laszlo Zolna

Balazs Juhasz

Piroska Lukacs

Lajos Fodor

A process is disclosed for the production of a urea-fatty acid adduct composed of discrete solid particles and having high protein and starch equivalent values wherein an aqueous solution or melt of urea at increased temperature is reacted with a fatty acid or a mixture of fatty acid and neutral fat at an increased temperature in a weight ratio of urea to fatty acid between 40 : 60 and 60 : 40 in a confined reacting space for about 2.5 to 10 seconds and wherein the mixture has been sprayed into a spraying space to allow the particles to crystallize in the air stream from the spraying.

Process and apparatus for producing a urea fatty acid adduct consisting

A process for recovering reusable suspended metal catalyst with a pre-determined minimum particle size from a suspension of metal particles in a liquid phase by subjecting the suspension to a continuously moving magnetic field of a minimum intensity.

Process for recovering suspended metal catalyst from their suspension

The invention relates to a continuous process for the preparation of Raney catalysts with controlled particle size, wherein the alloy of the catalytically active metal formed with aluminium and/or zinc is subjected to alkaline leaching, the hydrogen gas formed in this leaching step is separated and removed, the obtained product is washed, and the obtained catalyst with the desired particle size is separated. The improvement in this process comprises leaching the aluminium and/or zinc component of the alloy in a medium constantly kept in a turbulent flow, and removing the solid particles smaller than the desired range during the washing of the catalyst. The invention relates further to an apparatus for carrying out the above process, comprising a reaction chamber 1 made of one or more reactor(s) and equipped with feeding inlets 2, 3, and 4, a separator 6 equipped with a gas removing outlet 7, a tubing connecting said reaction chamber 1 to said separator 6, a washing-separating-sorting unit 9 equipped with one or more washing liquid introducing inlet(s) 10 and washing liquid removing outlet(s) 11, a tubing 8 connecting said separator 6 to said washing-separating-sorting unit 9, a storing unit 12, and a tubing 13 connecting said washing-separating-sorting unit 9 to said storing unit 12. According to the invention Raney catalysts with controlled particle size and constant characteristics can be prepared in a continuous operation.

Process for the continuous production of Raney catalysts

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Budapest, Hungary

Sandor Gal