Adsorption of gases by amine complexed Mn (II)
First Claim
1. A method of sorbing a gas comprising contacting a manganese (II) complex with said gas at an effective temperature and pressure;
- said manganese (II) compound having the following general formula;
space="preserve" listing-type="equation">MnLX.sub.2wherein L represents a neutral nitrogen containing ligand which is sensitive to a compound selected from the group consisting of oxygen, nitrogen oxides, carbon monoxide, carbon dioxide, sulfur dioxide and C2 -C5 alkenes and X represents an anion.
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Abstract
Amine complexed Mn(II) compounds reversibly adsorb sulfur dioxide and oxygen as well as nitrogen oxides, carbon monoxide, carbon dioxide and lower alkenes. More specifically, these compounds have the following formula:
Mn(II)LX.sub.2
where X represents F-, Br-, I-, SCN- or OH-. L is a ligand having the formula
N(R.sub.1).sub.n or R.sub.2 --N═N--R.sub.3
wherein R1, R2 and R3 represents identical or different substituents generally including alkyl, aryl, cycloalkyl, heterocyclic and heterocyclic aromatic radicals and n is 1-3. The metal complexes are used to adsorb gases as a solid adsorbent, suspended on aluminum oxide or dissolved in a non-volatile solvent. The gas can be adsorbed at a low temperature in the range of 30°-200° C., and desorbed at a higher temperature in the range of 45°-230° C. or at a lower pressure.
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Citations
27 Claims
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1. A method of sorbing a gas comprising contacting a manganese (II) complex with said gas at an effective temperature and pressure;
said manganese (II) compound having the following general formula;
space="preserve" listing-type="equation">MnLX.sub.2wherein L represents a neutral nitrogen containing ligand which is sensitive to a compound selected from the group consisting of oxygen, nitrogen oxides, carbon monoxide, carbon dioxide, sulfur dioxide and C2 -C5 alkenes and X represents an anion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A compound having the following general formula:
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space="preserve" listing-type="equation">Mn(II)LX.sub.2wherein L represents nitrogen containing ligand which is sensitive to a compound selected from the group consisting of oxygen, nitrogen oxides, sulfur dioxide, carbon monoxide, carbon dioxides, and C2 -C5 alkenes and x represents an anion. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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- 20. A compound formed by reacting anhydrous Mn(II)X2 with an anhydrous ligand in an inert atmosphere wherein said ligand is an oxygen sensitive nitrogen containing ligand wherein x represents an anion.
- 24. A compound formed by reacting anhydrous Mn(II)X2 with an anhydrous ligand in an inert atmosphere wherein said ligand is a sulfur dioxide sensitive nitrogen containing ligand wherein x represents an anion.
Specification