EP 1149077 A1 20011031 - METHOD FOR THE PRODUCTION OF TETRAMETHYLTHIURAM DISULPHIDE
Title (en)
METHOD FOR THE PRODUCTION OF TETRAMETHYLTHIURAM DISULPHIDE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TETRAMETHYLTHIURAMDISULFID
Title (fr)
PROCEDE DE PREPARATION DE DISULFURE DE TETRAMETHYLTHIURAME
Publication
Application
Priority
- BE 9900071 A 19990203
- EP 0000867 W 20000203
Abstract (en)
[origin: WO0046192A1] The invention relates to a method for the production of tetramethylthiuram disulphide, wherein dimethylammonium dimethyldithiocarbamate is oxidized from an aqueous solution by means of oxygen, carbon disulphide is added, the reaction is carried out in the presence of 5-25 % lignosulphonate, calculated according to the theoretical amount of tetramethylthiuram disulphide that can be formed, with a pH value of the reaction mixture that ranges from 7.0-8.0. The inventive method enables a high concentration of tetramethylthiuram disulphide to be obtained in the reaction mixture whereby the reaction mixture can be used directly to create agro-chemical formulations.
IPC 1-7
IPC 8 full level
C07C 333/32 (2006.01)
CPC (source: EP US)
C07C 333/32 (2013.01 - EP US)
Citation (search report)
See references of WO 0046192A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0046192 A1 20000810; AU 2906400 A 20000825; BE 1012460 A3 20001107; EP 1149077 A1 20011031; US 6420602 B1 20020716
DOCDB simple family (application)
EP 0000867 W 20000203; AU 2906400 A 20000203; BE 9900071 A 19990203; EP 00907495 A 20000203; US 89039801 A 20011026