C07C68/06

PROCESS FOR THE PRODUCTION OF HIGH VOLTAGE ELECTROLYTE SOLVENTS FOR LI-ION BATTERIES

A method for producing halogenated carbonates is provided, the method having the steps of reacting a halogenated hydroxyl moiety with an alkyl formate in the presence of a liquid solvent and a solid base. An exemplary halogenated carbonate so produced is trifluoroethyl methyl carbonate.

Direct synthesis of bio-based alkyl and furanic diol ethers, acetates, ether-acetates, and carbonates

A method of preparing a glycol mono-ether or mono-acetate, or carbonate involving either one of two pathways from alkylene glycols, HMF or its reduction derivative products (i.e., FDM, bHMTHFs), is provided. In particular, according to one pathway, the alkylene glycol, HMF or FDM, bHMTHFs are reacted with a dialkyl carbonate in the presence of a deprotonating agent, in substantial absence of an extrinsic catalyst, to produce an ether, and subsequently reacting the ether with an acid base. According to the other pathway, alkylene glycols are reacted with an acetate donor in the presence of an acid, base, to generate an alkylene mono-acetate, and etherified with a carbonate in the presence of a deprotonating agent.

Direct synthesis of bio-based alkyl and furanic diol ethers, acetates, ether-acetates, and carbonates

A method of preparing a glycol mono-ether or mono-acetate, or carbonate involving either one of two pathways from alkylene glycols, HMF or its reduction derivative products (i.e., FDM, bHMTHFs), is provided. In particular, according to one pathway, the alkylene glycol, HMF or FDM, bHMTHFs are reacted with a dialkyl carbonate in the presence of a deprotonating agent, in substantial absence of an extrinsic catalyst, to produce an ether, and subsequently reacting the ether with an acid base. According to the other pathway, alkylene glycols are reacted with an acetate donor in the presence of an acid, base, to generate an alkylene mono-acetate, and etherified with a carbonate in the presence of a deprotonating agent.

SOLVENT COMPOUNDS FOR USE AS REPLACEMENTS FOR SLOW EVAPORATING SOLVENTS

The present disclosure provides, in part, a solvent compound for use as a slow evaporating replacement. More specifically, the present disclosure relates to volatile organic components (VOC)-exempt solvent compounds that may be used as a slow evaporating replacement that may, for example, be useful as a component or diluent in the production of paints and coatings, and other industrial products.

SOLVENT COMPOUNDS FOR USE AS REPLACEMENTS FOR SLOW EVAPORATING SOLVENTS

The present disclosure provides, in part, a solvent compound for use as a slow evaporating replacement. More specifically, the present disclosure relates to volatile organic components (VOC)-exempt solvent compounds that may be used as a slow evaporating replacement that may, for example, be useful as a component or diluent in the production of paints and coatings, and other industrial products.

METHOD FOR PRODUCING DIPHENYL CARBONATE
20240400496 · 2024-12-05 · ·

Provided is a method for producing diphenyl carbonate, comprising a first purification step of continuously introducing a reaction mixture containing diphenyl carbonate obtained by specific steps to a high-boiling substance separation column A, and continuously separating by distillation the mixture into a column top component (A.sub.T) containing diphenyl carbonate and a column bottom component (A.sub.B) containing a catalyst; a specific second purification step; and two specific circulation steps, wherein a mass concentration ratio (DPC/HB) of diphenyl carbonate to a high-boiling substance in the column bottom component (A.sub.B) of the high-boiling substance separation column A is 0.1 to 1.0, and a mass concentration ratio (DPC/catalyst) of the diphenyl carbonate to the catalyst is 1.0 to 10.0.

METHOD FOR PRODUCING DIPHENYL CARBONATE
20240400496 · 2024-12-05 · ·

Provided is a method for producing diphenyl carbonate, comprising a first purification step of continuously introducing a reaction mixture containing diphenyl carbonate obtained by specific steps to a high-boiling substance separation column A, and continuously separating by distillation the mixture into a column top component (A.sub.T) containing diphenyl carbonate and a column bottom component (A.sub.B) containing a catalyst; a specific second purification step; and two specific circulation steps, wherein a mass concentration ratio (DPC/HB) of diphenyl carbonate to a high-boiling substance in the column bottom component (A.sub.B) of the high-boiling substance separation column A is 0.1 to 1.0, and a mass concentration ratio (DPC/catalyst) of the diphenyl carbonate to the catalyst is 1.0 to 10.0.

METHOD FOR PRODUCING CARBONATE

The present invention relates to a method for producing a carbonate. According to the method of the present invention, column plugging occurring in a producing process of a carbonate, specifically, a purification process, can be suppressed.

METHOD FOR PRODUCING CARBONATE

The present invention relates to a method for producing a carbonate. According to the method of the present invention, column plugging occurring in a producing process of a carbonate, specifically, a purification process, can be suppressed.

METHOD FOR PRODUCING CARBONATE

The present invention relates to a method for preparing a carbonate. According to the method according to the present invention, it is possible to increase the DMC conversion rate and EMC selectivity in a transesterification reaction of DMC and EtOH.