TRANSITION METAL CRYSTALLINE OXYHYDROXIDE-MOLYBDATE Russian patent published in 2019 - IPC B01J23/887 C01G39/02 C01G49/02 C01G99/00 C01G51/04 C01G45/02 C01G53/04 C01G1/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to crystalline oxyhydroxide-molybdate of a transition metal, a hydrotreatment catalyst, a method of producing crystalline oxyhydroxide-molybdate of a transition metal, a method of producing a hydrotreatment catalyst and a hydrotreatment method. Transition metal crystalline oxyhydroxide-molybdate has the formula: (NH₄)_aM (OH)_bMo_xO_y, where "a" is in range from 0.1 to 10; "M" is a metal selected from Mg, Mn, Fe, Co, Ni, Cu, Zn and mixtures thereof; "b" is in range from 0.1 to 2; "x" is in range from 0.5 to 1.5; and "y" is a number which corresponds to the sum of valencies a, M, b and x; wherein the crystalline oxyhydroxide-molybdate of the transition metal has a powder X-ray diffraction pattern showing peaks at d-distances listed in Table A. Method of producing crystalline oxyhydroxide-molybdate of a transition metal involves: (a) forming a reaction mixture containing NH₃, H₂O and sources M and Mo; (b) adjusting the pH of the reaction mixture to pH of 8.5 to 10; (c) reacting the reaction mixture in range of 100 °C to 220 °C in autogenous medium; and (d) recovering crystalline oxyhydroxide-molybdate of a transition metal. Hydrotreatment catalyst contains sulfided crystalline oxyhydroxide-molybdate of a transition metal. Table A

d(Å) I/I₀% 10.0–9.53 avg. 7.72–7.76 str. 7.49–7.25 avg. 5.27–5.12 avg. 5.1–5.04 avg. 4.92–4.87 weak 3.97–3.92 avg. 3.69–3.64 str. 3.52–3.48 avg. 3.35–3.32 avg. 3.31–3.29 avg. 3.12–3.09 weak 3–2.97 avg. 2.76–2.73 avg.

See tab.

EFFECT: obtaining a novel crystalline oxyhydroxide-molybdate of a transition metal which has a unique X-ray diffraction pattern showing strong Bragg peaks at 9,65 Å, 7,3 Å and 5,17 Å.

9 cl, 1 dwg, 3 ex