A (48:20:7 w/w) Cu-Zn-Al catalyst (Polish TMC-1) (reduced 12 h with 3.6 m(3) (S.T.P.) H-2/liter catalyst/h at 0.5 MPa and 190 degrees C), conventionally used for the synthesis of MeOH, converted 2-ethyl-3-propylacrolein in 100% into 2-ethylhexanol In a 1000 x 30(theta)-mm reactor filled with 670 mm TMC-1 on a ceramic packing 285 mm high. In the 1000-h long test, 260-380 cm(3)/liter cat./h, contact time 2.31 s, bed temp. 190-255 degrees C,. TCM-1 proved to be equivalent to a com. (26:52 w/w) Cu-Zn catalyst .