Convert dichloroisopropyl ether into a halogenated derivative by contacting the dichloroisopropyl ether with a source of hydrogen and a select heterogeneous hydrogenation catalyst under process conditions selected from a combination of a temperature within a range of from 50 degrees centigrade ( C.) to 350 C., a pressure within a range of from atmospheric pressure (0.1 mega-pascals) to 1000 pounds per square inch (6.9 MPa), a liquid feed volume flow to catalyst mass ratio between 0.5 and 10 L/Kg*h and a volume hydrogen/volume liquid ratio between 100 and 5000 ml gas/ml liquid. The halogenated derivative is at least one of 1-chloro-2-propanol and 1,2-dichloropropane 1, and glycerin monochlorohydrin.

Provided is a process of preparing dichloropropanol, DCP. The process includes the step of: subjecting a three-carbon material to a first chlorination reaction with an aqueous hydrochloric acid solution in the presence of a carboxylic acid catalyst; adding the three-carbon material into the first mixture solution to undergo a second chlorination reaction and obtain a second mixture solution containing less than 13 wt % of hydrochloric acid; distilling the second mixture solution; and purifying the overhead product by oil-water separation to obtain DCP from the oil phase. By lowering the concentration of the hydrochloric acid contained in the mixture to be distilled, the DCP product can be straightly obtained via distillation and oil-water separation, thereby effectively simplifying the process of preparing DCP.

Provided is a process of preparing dichloropropanol, DCP. The process includes the step of: subjecting a three-carbon material to a first chlorination reaction with an aqueous hydrochloric acid solution in the presence of a carboxylic acid catalyst; adding the three-carbon material into the first mixture solution to undergo a second chlorination reaction and obtain a second mixture solution containing less than 13 wt % of hydrochloric acid; distilling the second mixture solution; and purifying the overhead product by oil-water separation to obtain DCP from the oil phase. By lowering the concentration of the hydrochloric acid contained in the mixture to be distilled, the DCP product can be straightly obtained via distillation and oil-water separation, thereby effectively simplifying the process of preparing DCP.

The present disclosure relates to a recycling method for producing dimethyl carbonate. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

The present disclosure relates to a recycling method for producing dimethyl carbonate. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

The present disclosure relates to a recycling method for producing dimethyl carbonate and dimethyl carbonate derivatives. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

The present disclosure relates to a recycling method for producing dimethyl carbonate and dimethyl carbonate derivatives. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

The present disclosure relates to a recycling method for producing dimethyl carbonate. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

The present disclosure relates to a recycling method for producing dimethyl carbonate. The process is unique in that it produces a by-product that can be re-used in the process as a raw material for repeating the process. For example, when the process is directed to synthesizing dimethyl carbonate, glycerol is used as a starting material. Glycerol is also a by-product produced during formation of dimethyl carbonate, and therefore it can be re-used as starting material to generate more dimethyl carbonate.

As shown by the following reaction formula, disclosed is a fluorine-containing hydroxyaldehyde production method, including the step of obtaining a fluorine-containing hydroxyaldehyde represented by the general formula (1) by reacting a fluorine-containing ketone represented by the general formula (4) and an aldehyde represented by the general formula (5) in the presence of an organic base selected from a heterocyclic compound which contains a nitrogen atom in its ring or a tertiary amine. By this production method, it is possible to obtain the fluorine-containing hydroxyaldehyde in a high yield. Furthermore, it is possible to easily obtain in high yields a fluorine-containing propanediol, which is a derivative of this fluorine-containing hydroxyaldehyde, and a fluorine-containing alcohol monomer by using the same. ##STR00001##