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US 9,802,835 B2Granted
Method for producing metal carbonate and catalyst for producing the same
AssigneeTaigreen Science Inc.
InventorsTzung-Wen Chiou, Kuan-Fu Liu, Wen-Feng Liaw
Life of this patent
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Abstract
A method for producing metal carbonate is disclosed. The method includes the following steps of providing a first mixture of metal and a catalyst containing iron, NO groups, and N-containing ligands first; then introducing carbon dioxide to the first mixture to form a second mixture and obtaining a product. The method described here can improve the yield and decrease the cost of metal carbonate production.
Claims18
A method for producing metal carbonate, comprising following steps:
- (A) providing a first mixture of metal and a solution of a catalyst represented by the following formula (I):
- (Fe(NO)2)2L (I)
- wherein L is a ligand represented by the following formula (II);
- (R1R2)N—(CH2)2—N(R3)—(CH2)2—N(R4)—(CH2)2—N(R5R6) (II)
- wherein each of R1, R2, R3, R4, R5, and R6, independently is hydrogen, or C1-C3 alkyl;
- and
- (B) introducing carbon dioxide to the first mixture to form a second mixture and obtaining a product.
4 more elements
A compound represented by the following formula (I):
- (Fe(NO)2)2L (I)
- wherein L is a ligand represented by the following formula (II);
- (R1R2)N—(CH2)2—N(R3)—(CH2)2—N(R4)—(CH2)2—N(R5R6) (II)
- wherein each of R1, R2, R3, R4, R5, and R6, independently is hydrogen, or C1-C3 alkyl.
1 more element
Dependencies are inferred from the claim text.