METHOD OF SEPARATING STRAIGHT HYDROCARBONS FROM BRANCHED ISOMERS THEREOF Russian patent published in 2013 - IPC C07C7/135 C07C7/12 C07C9/10 C07C9/14 C07C9/22 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of separating at least one straight C₄-C₂₀ hydrocarbon from a fluid mixture containing said straight hydrocarbon and at least one branched isomer thereof. The method involves a step of bringing the fluid mixture into contact with an adsorbent which contains a porous organometallic skeletal material containing at least one at least bidentate organic compound, having a coordination bond with at least one metal ion for adsorption of the straight hydrocarbon, where the at least one at least bidentate organic compound is a monocyclic, bicyclic or polycyclic ring system and is unsubstituted or has one or more substitutes, independently selected from a group consisting of a halogen atom, C_1-6-alkyl, phenyl, NH₂, NH(C_1-6-alkyl), N(C_1-6-alkyl)₂, OH, O-phenyl and OC_1-6-alkyl, where the substitutes C_1-6-alkyl and phenyl are unsubstituted or have one or more substitutes, independently selected from a group consisting of a halogen atom, NH₂, NH(C_1-6-alkyl), N(C_1-6-alkyl)₂, OH, O-phenyl and OC_1-6-alkyl, wherein the ring system of the at least one at least bidentate organic compound is a substituted imidazole, and where said at least one metal ion is an ion of a metal selected from a group consisting of Zn, Cu, Co, Ni, Fe and Mn. The invention also relates to use of said porous organometallic skeletal material in the method of separating straight hydrocarbons from branched isomers thereof.

EFFECT: present invention provides an alternative, easily to make absorbent.

9 cl, 4 ex, 3 dwg