Patent ID: 8858691

Claim:
Adsorbents comprising oxides of elements selected from the group consisting of Cu, Fe, Zn, Ni, Co, Mn, Mg, Ba, Zr, Ce, La or combinations of these elements, which adsorbents have a copper oxide content of at least 30% by weight and have pore volumes of less than 0.175 ml·g −1 for pores having a radius of less than 20 nm which adsorbents are obtained by a process comprising the following steps: a) producing a solution of the components of the adsorption mass and/or of soluble starting compounds thereof, b) precipitating a solid from the solution by adding a base, c) separating off the precipitated product, d) washing the precipitated product, e) drying the precipitated product, f) calcining the precipitated product to form a pretreated powder, g) precompacting and tableting the pretreated powder to give tablets, and h) recalcination of the tablets at a temperature up to 650° C.