METHOD OF PARAHYDROGEN SYNTHESIS AND A CATALYST FOR ITS REALIZATION Russian patent published in 1995 - IPC

FIELD: chemical technology. SUBSTANCE: method involves contacting of hydrogen containing ortho-hydrogen under cryogenic conditions at the volume rate (4-10) x (4-10)×10⁴ h^-1 in the presence of granulated catalyst on the basis of trivalent transient metal hydroxide of hexagonal polymorphic modification of the general formula α-Fe_xMe_(1-x)O(OH) where Me rare-earth metal of lanthanum group, X 0.88-0.99; α crystal lattice type. Used catalyst is activated preliminary in hydrogen flow at 383-423 K. Catalyst granules made of indicated hydroxide, preferably Me Gd, Dy, Te. Method is used for liquid hydrogen producing. EFFECT: improved method of parahydrogen synthesis. 4 cl, 2 dwg, 1 tbl