Basf Aktiengesellschaft

Guenter Zirker

Laszlo Marosi

Franz J Broecker

Matthias Schwarzmann

Bruno Triebskorn

Knut Kaempfer

Winfried Dethlefsen

Franz Merger

Leopold Hupfer

Matthias Irgang

Juergen Paetsch

Ernest Miesen

Joachim Stabenow

Knut Eger

Karl-Heinz Gruendler

Amorphous metal/magnesium silicates of the general formula

Preparation of amorphous metal/magnesium silicates

A process for the preparation of methanol by reacting a gaseous mixture of carbon monoxide, carbon dioxide and hydrogen at an elevated temperature and under superatmospheric pressure over a catalyst which contains zinc, copper and aluminum, the catalyst being prepared from a co-crystalline material of the formula

Preparation of methanol synthesis catalyst comprising zinc, copper and

Hydrogenation catalysts which are prepared from mixed crystals of copper-zinc compounds, obtained by precipitation, of the formula

Preparation of propanediols using a copper-and zinc containing

A two-stage process for the manufacture of methane from hydrocarbons is described. In the first stage, the hydrocarbons are converted into methane-rich gases, using the nickel catalyst described below. The cracked gases thus obtained are cooled and converted into methane-rich gases in a further catalytic process stage, using a methanization catalyst or the nickel catalyst mentioned below. To produce the nickel catalyst, the compound Ni.sub.6 Al.sub.2 (OH).sub.16.CO.sub.3.4H.sub.2 O is prepared in aqueous solution. The catalyst is obtained from this compound by drying, calcination and subsequent reduction in a stream of hydrogen whilst maintaining very specific temperature gradients between the drying stage and the calcination stage.

Manufacture of methane

The compound Ni.sub.6 Al.sub.2 (OH).sub.16. CO.sub.3. 4H.sub.2 O is isolated from aqueous solution. The catalyst is obtained from this compound by drying, calcination and subsequent reduction in a stream of hydrogen, whilst maintaining very specific temperature gradients between the drying stage and the calcination stage. A process for the manufacture of gases containing methane from hydrocarbons by steam cracking, in which the abovementioned catalyst is employed, is also described.

Catalyst for the manufacture of gases containing methane

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Ludwigshafen, Germany

Guenter Zirker