Subject: Activated Carbon For Glyphosate Production
Our company is a Latin-American supplier of chemical products specially.
Right now we have a customer who had need one type of catalyst activated carbon for glyphosate syntesis:
Quantity request: 100 TN per year
Product: Close similar product to Norit SXRO
Application: GLYPHOSATE SYNTESIS: With this AC they obtain a yield of reaction > 98%. This AC is a catalyst per se, in liquid oxidation reactions using air as oxidising agent. Oxidative decarboxylation of phosphonomethyl imido diacetic acid (PMIDA) for the synthesis of N-(phosphonomethyl)glycine (N-PMG), or glyphosate. N-PMG or glyphosate is the active compound of herbicide Roundup, Monsanto, USA. The oxidative decarboxylation of water solution of PMIDA was performed at 95 centigrade, with air in the presence of these carbon catalysts. Mineral impurities are not involved in the oxidation process since synthetic carbons are quite active. We know that surface properties of active carbons from Norit have been modified by different treatments: oxidation by a solution of NaOCl with 4% active chlorine to create oxygen functional groups, or thermal treatments under N2 to remove them, treatment with ammoniac to introduce nitrogen. Thermal treatments under N2 and NH3, creating basic groups, enhance greatly the activity of the carbon. The nature of the nitrogen functional groups seems to play an essential role in the activity of catalysts.
They are running tests with Calgon type Centaur 80x325 US mesh, and Norit SX1G (raw material: peat, activated by steam with acid washed, particle side D50% 30 microns, Sbet 1055 m2/g, microporous volumen 0.73 cm3/g) but they found the best result with the Norit SXR0 (active carbon form peat). If you have this specific activated carbon product, please let us know and I?ll appreciate if you could quote your best price and send us sample and data sheet. It is mandatory that you have reference for this specific application. Maybe the best strategic way could be that you looking for what type of activated carbon use the factories of glyphosate in China or Japan.Glyphosate is a systemic organophosphoric herbicide absorbed by foliage, and rapidly translocated throughout the plant. It is used to control annual and perennial grasses and broad-leaved weeds. and in stubble, for cereals, peas, beans, oilseed rape, and so on.1) Common name: Glyphosate2) Chemical name: N-(phosphonoethyl)glycine3) Molecular formula: C3H8NO5P4) Molecular weight: 169.15) CAS no.: 1071-83-6We know that China is becoming strong in the production and export of Glyphosate and this activated carbon is very probable that it be used by the Chinese glyphosate manufacturers. There are 26 manufacturers of glyphosate technical in China. If you sold to them this AC or you know who AC manufacturer sold them, you can high chance for this busnees.
We will wait for your soonest reply,
Thank you in advance and best regards,
Rolando Valencia
NW
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84358.[AR]
阿根廷求购活性炭(activated carbon) 
