Catalyst and method for synthesis of lactic acid and its derivatives
AssigneeMicrovast Power Systems Co., Ltd.
InventorsXiaoping Zhou, Rui Bi
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Abstract
A catalyst for synthesis of lactic acid and it derivatives is provided. The catalyst includes SnY2.mH2O and at least one of NH4X or quaternary ammonium salts, wherein X and Y are selected from F—, Cl—, Br—, I—, CH3SO3—, C6H5SO3—, CH3C6H4SO3— or CN—, m represents an integer of 1 to 15. A method for synthesis of lactic acid and it derivatives with the above catalyst is also provided. By using the above catalyst and method, it is capable of converting carbohydrate-containing raw material to lactic acid and its derivatives directly in a more efficient and economical way.
Claims19
A catalyst for synthesis of lactic acid and its derivatives, comprising:
- SnY2.mH2O and at least one of NH4X or quaternary ammonium salts, wherein X and Y are selected from F−, Cl−, Br−, I−, CH3SO3−, C6H5SO3−, CH3C6H4SO3− or CN−, m represents an integer of 1 to 15, and the mass ratio of the at least one of NH4X or quaternary ammonium salts to the SnY2.mH2O is in a range from 1:2 to 5:2.
A method for synthesis of lactic acid and its derivatives, comprising:
- providing a mixture, comprising:
- at least one carbohydrate-containing raw material, at least one alcohol, at least one catalyst, and at least one solvent, wherein the catalyst comprising SnY2.mH2O and at least one of NH4X or quaternary ammonium salts, wherein X and Y are selected from F−, Cl−, Br−, I−, CH3SO3−, C6H5SO3−CH3C6H4SO3−or CN−, m represents an integer of 1 to 15,and the mass ratio of the at least one of NH4X or quaternary ammonium salts to the SnY2.mH2O is in a range from 1:2 to 5:2;
- and
- heating the mixture to obtain lactic acid and its derivatives.
Dependencies are inferred from the claim text.