TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: In step (a), a pH-value of the suspension is adjusted to at least 10, preferably at least 12 and/or a weight ratio between the red mud and water is adjusted to a value of 0.8-1.2. In step (a), a weight ratio between the calcium salt and the red mud is adjusted to a value of at least 0.15, preferably at least 0.20, and/or a molar ratio between calcium and aluminum is adjusted to a value of 1.6-2, preferably 1.8. The suspension in step (b) is heated to a temperature of 40-75 degrees C, preferably 43-48 degrees C, and/or 50-68 degrees C, preferably 65 degrees C. The suspension in step (b) is heated for 10 minutes to 6 hours, preferably 1-2 hours. The liquid phase in step (c) is separated using a filter press, a chamber filter press and/or a separator (20) from the solid product mixture comprising the catalyst. The solid product mixture comprising the catalyst according to step (c) is dried and/or the catalyst is cleaned. In step (a1), a kerogen, coal, tar, oil and/or biomass is used as an organic carbon compound and/or the catalyst and the organic carbon compound are mixed in a weight ratio of 2-3, preferably 2.5. The mixture in step (b1) is heated to a temperature of 250-450 degrees C, preferably 280-400 degrees C, and/or for a period of 30 minutes to 2 hours, preferably 40 minutes to 1 hour. The mixture in step (b1) is heated without oxygen and/or when heated by an inert gas curtain, preferably a carbon dioxide curtain is shielded. The steps (a1) to (c1) are performed continuously, and preferably in a counter-current gasifier. In step (c1), at least a gaseous reaction product is separated, which contains carbon monoxide, hydrogen and/or methane, and/or a magnetic reaction product containing at least magnetite and/or maghemite is separated and/or a solid non-magnetic reaction product is separated, which contains at least carbon, a hydrocarbon, at least one silicate, at least one carbonate and/or an aluminum compound. EXAMPLE - No suitable example given.