EP 1153012 A1 20011114 - METHOD FOR PREPARING TETRA-ALKYLTHIURAM DISULPHIDES
Title (en)
METHOD FOR PREPARING TETRA-ALKYLTHIURAM DISULPHIDES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON TETRAALKYLTHIURAMDISUFIDEN
Title (fr)
PROCEDE DE PREPARATION DE DISULFURES DE TETRA-ALKYLTHIURAME
Publication
Application
Priority
- BE 9900115 A 19990219
- EP 0000868 W 20000203
Abstract (en)
[origin: WO0048995A1] The invention concerns a method for preparing tetra-alkylthiuram disulphides, which consists in: oxidising dialkylammonium dialkylthiocarbamate in an aqueous solution with oxygen, with addition of carbon disulphides, the reaction being carried out in the presence of a metal catalyst and a dispersing agent, at a pH value of the reaction mixture ranging between 7.0 and 8.0. The method enables to obtain very pure tetra-alkylthiuram disulphide, for rubber vulcanisation, and at a higher concentration in the reaction mixture, thereby enabling it to be used directly for formulations designed for agricultural chemistry.
IPC 1-7
IPC 8 full level
C07C 333/32 (2006.01)
CPC (source: EP)
C07C 333/32 (2013.01)
Citation (search report)
See references of WO 0048995A1
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 0048995 A1 20000824; AU 2546500 A 20000904; BE 1013030 A3 20010807; EP 1153012 A1 20011114
DOCDB simple family (application)
EP 0000868 W 20000203; AU 2546500 A 20000203; BE 9900115 A 19990219; EP 00903668 A 20000203