초록 ▼

A process is provided for selectively separating oxygen from an oxygen-containing fluid stream by bringing said fluid stream into contact with a high capacity solid state cyanocobaltate complex in a non-aluminosilicate environment represented by the chemical formula: Ax/zz+[Co(CN)n]x-ㆍpS where: A is

A process is provided for selectively separating oxygen from an oxygen-containing fluid stream by bringing said fluid stream into contact with a high capacity solid state cyanocobaltate complex in a non-aluminosilicate environment represented by the chemical formula: Ax/zz+[Co(CN)n]x-ㆍpS where: A is an alkali, alkaline earth, transition, or Group 12 metal atom; z is 1, 2 or 3; n is any number from 3 to 5; x is n-2; p is any number from greater than zero to 6; and S is a ligand which is capable of coordinating with Az+, Co or both. These complexes chemically bind oxygen to form novel oxygen adducts, thereby selectively removing oxygen from the fluid stream. The bound oxygen may be recovered by increasing the temperature or by reducing the partial pressure of O2 above the adduct.

대표청구항 ▼

A process for removing oxygen from a fluid stream containing free oxygen and at least one other component which is inert to the complex described below, said process comprising bringing said fluid stream into contact with an aluminosilicate-free solid state composition comprising one or more cyanoco

A process for removing oxygen from a fluid stream containing free oxygen and at least one other component which is inert to the complex described below, said process comprising bringing said fluid stream into contact with an aluminosilicate-free solid state composition comprising one or more cyanocobaltate complexes represented by the chemical formula: Ax/zz+[Co(CN)n]x-ㆍpS where: A is an alkali metal atom, alkaline earth metal atom, Zn, Cd, or Hg atom; z is 1, 2 or 3; n is 3, 4 or 5; x is n-2; p is any number from greater than zero to 6; and S is a ligand selected from the group consisting of N,N-dialkyl amides, alkyl lactams, N-alkyl imides, ammonia, chelating tertiary amines, N-heterocycles, bipyridyls and substituted dipyridyls, organic nitriles, dicyanamide anion, dicyanomethane anion, halide ions, SCN-, NCS-and mixtures thereof which is capable of coordinating with Az+, Co or both; wherein said cyanocobaltate complex repeatedly, selectively and reversibly chemically binds oxygen, thereby removing oxygen from the fluid stream.