Tatabanyai Szenbanyak

Mta Kozponti Kemiai Kutato Intezet

Istvan Nemes

Laszlo Kovacs

Andras Nemeth

Dezso Gal

Janos Szepvolgyi

Szilard Riederauer

Katalin Szabo Nee Mogyorosi

Geza Szentgyorgyi

Galina Moger Nee Eremineva

Erik Kroo

Karoly Remenyi

Laszlo Botar

Katalin Szabo Nee Mogyorossi

Peter Hajdu

Galina Moger Nee Jeremejeva

Karoly Heberger

Akos Bencsura

Gyorgy Plaveczky

Istyan Gyoni

Julia Lukacs

Istvan Kalocsai

The invention relates to stable brown-coal/oil suspensions and a process for preparing same. The suspension contains 20 to 60% by mass of coal powder and 40 to 80% by mass of fuel oil of 25 to 70% by mass of an agglomerate and 30 to 75% by mass of fuel oil. The invention renders possible to utilize brown-coal powders of low value for heating purposes.

Stable brown-coal/oil suspensions and a process for preparing same

The invention relates to an improved method for the production of liquid carbon compounds from coal. According to the invention coal is oxidized at 80.degree. to 300.degree. C. in the presence of the vapors of a C.sub.1-5 aliphatic alcohol, optionally under the introduction of steam, and then the liquid carbon compounds are separated from the resulting product mixture. The process according to the invention can also be performed under atmospheric pressure, 50-80% of the carbon content of the coal converted appear in the liquid product. The liquid product contains the more valuable fraction, boiling below 300.degree. C., as major component.

Method for the production of liquid carbon compounds from coal

The invention relates to an improved method for the liquid phase oxidation of coal performed with oxygen optionally in the presence of water. According to the invention oxidation is performed in the presence of a cooxidation partner selected from the group of liquid hydrocarbons and oxygen-containing liquid hydrocarbons, and if water is also present, the pH of the homogeneous solution formed from the cooxidation partner and water is maintained at a slightly acidic value. By the method of the invention the formation of carbon dioxide can be suppressed significantly.

Method for the chemical utilization of coal by liquid phase oxidation

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Budapest, Hungary

Istvan Nemes