TABLE FOR LISTING NOTIFICATIONS OF PRODUCTION
AND USE OF A CLOSED-SYSTEM SITE-LIMITED INTERMEDIATES
PURSUANT TO NOTE (iii) OF ANNEX A AND NOTE (iii) OF ANNEX B
OF THE STOCKHOLM CONVENTION
|
Party |
Chemical |
Total production and use[1] |
Date of notification |
Any comments and link to actual notification[2] |
|
Brazil |
DDT (Dicofol production) |
Dicofol is produced by Nortox. The capacity of the plant is 200 kg/day Dicofol was not produced in 2003 and 2004. Production of Dicofol in: 2003 = 0 2004 = 0 Dicofol is used in formulations as an acaricide on cotton, citrus and apple |
13 September 2004 |
I - Production of dicofol: 1. DDT is produced using chloral, monochlorobenzene and oleum 2. DDT is dehydrochlorinated to dichlorodiphenyldichloroethane (DDE) 3. DDE is then chlorinated with chlorine producing the tetrachloro 4. Tetrachloro is purified by recristalization and then hydrolysed by an acidic hydrolytic medium to produce the acid Dicofol 5. Acid Dicofol extracted from the reaction mixture by decantation is neutralized and purified by vaccum distillation to get technical Dicofol II - The manufacture wastes containing DDTr are destroyed by incineration. III - The limit of DDTr required in dicofol technical is of 0.1%. The results of analyses of DDTr are required by the Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) for each batch produced or imported of product technical. Presentation of analyses results is a condition for import.
|
|
People's Republic of China |
DDT |
3,000,000 - 4,000,000 kg |
2 February 2005 |
About 80% of DDT is used as the intermediate in the production of dicofol. There are 6 enterprises having the capability to produce dicofol among which 4 enterprises produce it at present. At present, the amount of dicofol for the production of which DDT is used from pipeline to pipeline accounts for about 40%. |
|
People's Republic of China |
HCB |
3,000,000 - 4,000,000 kg |
2 February 2005 |
At present, the production of HCB and Na-PCP which used HCB as the intermediate occurs in the different workshops of the same enterprise. About 98% of HCB is used as the intermediate in the production of Na-PCP. |
|
India |
Dichloro Diphenyl Trichloroethane (DDT) |
Production: 150 ,000 kg |
27 October 2006 |
Dicofol is produced in closed system in batches. Through condensation of Chloral and MonoChloroBenzene(MCB), DDT is produced which is further Dehydrochlorinated to DDE followed by tetrachloro through chlorination. Tetrachloro further Hydrolysed by an acidic medium to produce Dicofol. Non transformed manufacture wastes Ethylene Di Chloride(EDC) is recovered from the final product for re-use through distillation. Whole manufacturing process is done in closed system where after every steps transformed materials are transferred through closed lines and reaction process occurs in closed vessel. |