A process for producing a surfactant having two head groups and a single tail group per molecule, including steps of: producing a compound of Formula (1) from ethanol and carbon disulfide; producing a compound of Formula (2) from a carboxylic acid and bromine; producing a compound of Formula (3) from the compound of Formula (2) and methanol; producing a compound of Formula (4) from the compound of Formula (1) and the compound of Formula (3); and producing a compound of Formula (5) from the compound of Formula (4) by a direct oxidation process or by a peracid oxidation process. The surfactant produced by the process has lower critical micelle concentration and enables a lower surface tension of a liquid as compared with prior surfactants with two head groups per molecule, thereby enabling the amount of surfactant required and thus the cost to be substantially reduced.

A process for producing a surfactant having two head groups and a single tail group per molecule, including steps of: producing a compound of Formula (1) from ethanol and carbon disulfide; producing a compound of Formula (2) from a carboxylic acid and bromine; producing a compound of Formula (3) from the compound of Formula (2) and methanol; producing a compound of Formula (4) from the compound of Formula (1) and the compound of Formula (3); and producing a compound of Formula (5) from the compound of Formula (4) by a direct oxidation process or by a peracid oxidation process. The surfactant produced by the process has lower critical micelle concentration and enables a lower surface tension of a liquid as compared with prior surfactants with two head groups per molecule, thereby enabling the amount of surfactant required and thus the cost to be substantially reduced.

A process for producing a surfactant having two head groups and a single tail group per molecule, including steps of: producing a compound of Formula (1) from ethanol and carbon disulfide; producing a compound of Formula (2) from a carboxylic acid and bromine; producing a compound of Formula (3) from the compound of Formula (2) and methanol; producing a compound of Formula (4) from the compound of Formula (1) and the compound of Formula (3); and producing a compound of Formula (5) from the compound of Formula (4) by a direct oxidation process or by a peracid oxidation process. The surfactant produced by the process has lower critical micelle concentration and enables a lower surface tension of a liquid as compared with prior surfactants with two head groups per molecule, thereby enabling the amount of surfactant required and thus the cost to be substantially reduced.

A process for producing a surfactant having two head groups and a single tail group per molecule, including steps of: producing a compound of Formula (1) from ethanol and carbon disulfide; producing a compound of Formula (2) from a carboxylic acid and bromine; producing a compound of Formula (3) from the compound of Formula (2) and methanol; producing a compound of Formula (4) from the compound of Formula (1) and the compound of Formula (3); and producing a compound of Formula (5) from the compound of Formula (4) by a direct oxidation process or by a peracid oxidation process. The surfactant produced by the process has lower critical micelle concentration and enables a lower surface tension of a liquid as compared with prior surfactants with two head groups per molecule, thereby enabling the amount of surfactant required and thus the cost to be substantially reduced.

An exemplary process for the production of alkali metal salts of dialkyldithiocarbamic acids produced according to the following steps: i) reaction of one or more dialkylamines, carbon disulphide and alkali metal hydroxides to form alkali metal salts of dialkyldithiocarbamic acids; ii) crystallisation to form a crystal suspension of alkali metal salts of dialkyldithiocarbamic acids; iii) separation of crystals of alkali metal salts of dialkyldithiocarbamic acids from the mother liquor in step ii; (iv) recirculation of the separated mother liquor into the crystallisation process; and v) drying of the alkali metal salts of dialkyldithiocarbamic acids.

An exemplary process for the production of alkali metal salts of dialkyldithiocarbamic acids produced according to the following steps: i) reaction of one or more dialkylamines, carbon disulphide and alkali metal hydroxides to form alkali metal salts of dialkyldithiocarbamic acids; ii) crystallisation to form a crystal suspension of alkali metal salts of dialkyldithiocarbamic acids; iii) separation of crystals of alkali metal salts of dialkyldithiocarbamic acids from the mother liquor in step ii; (iv) recirculation of the separated mother liquor into the crystallisation process; and v) drying of the alkali metal salts of dialkyldithiocarbamic acids.

The present invention relates to a process for the production of alkali metal salts of dialkyldithiocarbamic acids and to alkali metal salts of dialkyldithiocarbamic acids produced according to said process.

The present invention relates to a process for the production of alkali metal salts of dialkyldithiocarbamic acids and to alkali metal salts of dialkyldithiocarbamic acids produced according to said process.

The present invention concerns the use, as an active electrode material, of compounds comprising at least one entity of formula (I): in which the phenyl group is substituted with one to four identical or different substituent(s) R, chosen from a hydrogen atom, a halogen atom chosen from fluorine, chlorine, bromine or iodine, a C(S)SC+ group, an OC+ group, an SC+ group, C+ being an alkali cation chosen from Li+, Na+ and K+, a (C1-C12) alkyl radical, a (C2-C12) alkenyl radical, a (C6-C14) aryl or heteroaryl radical; or two vicinal substituents R that can, if appropriate, be linked to each other to together form a 3- to 7-membered ring optionally including another heteroatom chosen from N, O or S; in the base or salt form; and the tautomeric forms of same. It also concerns an electrode material, an electrode and a lithium, sodium or potassium secondary battery, obtained from these compounds.

The present invention concerns the use, as an active electrode material, of compounds comprising at least one entity of formula (I): in which the phenyl group is substituted with one to four identical or different substituent(s) R, chosen from a hydrogen atom, a halogen atom chosen from fluorine, chlorine, bromine or iodine, a C(S)SC+ group, an OC+ group, an SC+ group, C+ being an alkali cation chosen from Li+, Na+ and K+, a (C1-C12) alkyl radical, a (C2-C12) alkenyl radical, a (C6-C14) aryl or heteroaryl radical; or two vicinal substituents R that can, if appropriate, be linked to each other to together form a 3- to 7-membered ring optionally including another heteroatom chosen from N, O or S; in the base or salt form; and the tautomeric forms of same. It also concerns an electrode material, an electrode and a lithium, sodium or potassium secondary battery, obtained from these compounds.