Sterically hindered, regenerable Schiff base complexes, solutions thereof and process using the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-013/02
C07F-007/00
C07F-009/00
출원번호
US-0522523
(1990-05-11)
발명자
/ 주소
Friesen Dwayne T. (Bend OR) Miller Warren K. (Bend OR) Johnson Bruce M. (Bend OR) Edlund David J. (Bend OR)
출원인 / 주소
Bend Research, Inc. (Bend OR 02)
인용정보
피인용 횟수 :
17인용 특허 :
0
초록
There are disclosed saltmen-type metallo Schiff base complexes and oxygen-sorbing and -desorbing solutions of the same, pressure- and temperature-swing oxygen separation processes using the complexes and solutions, and methods of regenerating such complexes and solutions.
대표청구항▼
A metallo Schiff base complex of the structural formula [Figure] where M is a +2 valence metal selected from Co, Fe, Cu, Ni, Mn, Ru and Rh; R1 and R2 are selected from tertiary alkyl groups containing from 4 to 8 carbon atoms; R3 and R4 are selected from R1 and R2 and 1-methylcyclohexyl; R5 and R6 a
A metallo Schiff base complex of the structural formula [Figure] where M is a +2 valence metal selected from Co, Fe, Cu, Ni, Mn, Ru and Rh; R1 and R2 are selected from tertiary alkyl groups containing from 4 to 8 carbon atoms; R3 and R4 are selected from R1 and R2 and 1-methylcyclohexyl; R5 and R6 are selected from linear alkyl groups containing from 1 to 8 carbon atoms; and R7 and R8 are selected from R5, R6 and, taken together, a butylene group. An oxygen-sorbing and -desorbing solution consisting essentially of a solvent, an axial base and a metallo Schiff base complex, said solvent being selected from linear and branched chain alkyl-, alkylene-, ester- and halogen-substituted aromatic hydrocarbons, mixtures thereof, and mixtures thereof with linear and branched-chain non-aromatic hydrocarbons, halocarbons, and esters, said axial base being capable of providing a coordinating atom to said metallo Schiff base complex, and said metallo Schiff base complex being of the structural formula [Figure] where M is a +2 valence metal selected from Co, Fe, Cu, Ni, Mn, Ru and Rh; R1 and R2 are selected from tertiary alkyl groups containing from 4 to 8 carbon atoms; R3 and R4 are selected from R1 and R2 and 1-methylcyclohexyl; R5 and R6 are selected from linear alkyl groups containing from 1 to 8 carbon atoms; and R7 and R8 are selected from R5, R6 and, taken together, a butylene group. A process for the separation of oxygen comprising: (a) contacting an oxygen-containing feed stream with a solution consisting essentially of a solvent, an axial base and an metallo Schiff base complex, said solvent being selected from linear and branched chain alkyl-, alkylene-, ester- and halogen-substituted aromatic hydrocarbons, mixtures thereof, and mixtures thereof with linear and branched-chain non-aromatic hydrocarbons, halocarbons, and esters, said axial base being capable of providing a coordinating atom to said metallo Shiff base complex, and said metallo Schiff base complex being of the structural formula [Figure] where M is a +2 valence metal selected from Co, Fe, Cu, Ni, Mn, Ru and Rh, R1 and R2 are selected from tertiary alkyl groups containing from 4 to 8 carbon atoms; R3 and R4 are selected from R1 and R2 and 1-methylcyclohexyl; R5 and R6 are selected from linear alkyl groups containing from 1 to 8 carbon atoms; and R7 and R8 are selected from R5, R6 and, taken together, a butylene group, thereby sorbing oxygen from said feed stream; and (b) desorbing oxygen from said solution to a product stream.
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이 특허를 인용한 특허 (17)
Nestler Bernd,DEX, Bleaching-active metal complexes.
Sanchez-Molinero, Ivan; Claeys, Christophe; De Smedt, Guillaume; Jallais, Simon, Method for deoxygenation of smokes and equipment for implementing same.
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