Method for producing N-phosphonomethylglycine

    公开(公告)号:IN2032CH2003A

    公开(公告)日:2004-12-11

    申请号:IN2032CH2003

    申请日:2003-12-03

    Applicant: BASF AG

    Abstract: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.

    METHOD FOR PRODUCING ALKOXYLATED PRODUCTS AT OPTIMIZED REACTION PRESSURES

    公开(公告)号:AU2003229726A1

    公开(公告)日:2004-05-04

    申请号:AU2003229726

    申请日:2003-04-25

    Applicant: BASF AG

    Abstract: Producing alkoxylate, comprising contacting an ethylene oxide (EO)-containing alkylene oxide mixture with a starter compound in the presence of a binary metal cyanide compound (I) by using a total inert gas and EO pressure of 1.5-6.0 bar in the induction phase, is new. Alkoxylate production by contacting an ethylene oxide (EO)-containing alkylene oxide mixture with a starter compound in the presence of a binary metal cyanide compound of formula (I) comprises using a total inert gas and EO pressure of 1.5-6.0 bar in the induction phase. M1a(M2(CN)b(A)c)d.fM1gXn.h(H2O).eL.kP (I). M1 = Zn2+, Fe2+, Fe3+, Co3+, Ni2+, Mn2+, Co2+, Sn2+, Pb2+, Mo4+, Mo6+, Al3+, V4+, V5+, Sr2+, W4+, W6+, Cr2+, Cr3+, Cd2+, Hg2+, Pd2+, Pt2+, V2+, Mg2+, Ca2+, Ba2+, Cu2+, La3+, Ce3+, Ce4+, Eu3+, Ti3+, Ti4+, Ag+, Rh2+, Rh3+, Ru2+ or Ru3+; M2 = Fe2+, Fe3+, Co3+, Mn2+, Mn3+, V4+, V5+, Cr2+, Cr3+, Rh3+, Ru2+ or Ir3+; A, X = halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate, nitrate, nitrosyl, bisulfate, phosphate, (di)hydrogen phosphate or bicarbonate; L = a water-soluble alcohol, aldehyde, ketone, ether, polyether, ester, polyester, polycarbonate, urea, amide, amine, pyridine, nitrile, sulfide, phosphide, phosphite, phosphine, phosphonate or phosphate ligand; k, e, f, h = 0 or more; P = an organic additive; and a, b, c, d, g, n = numbers such that (I) is electrically neutral and c can be zero. An Independent claim is also included for an alkoxylate produced as above.

    Production of alkoxylates useful as emulsifiers, foam regulators or wetting agents comprises using a defined inert gas and ethylene oxide pressure in the induction phase

    公开(公告)号:DE10243366A1

    公开(公告)日:2004-04-01

    申请号:DE10243366

    申请日:2002-09-18

    Applicant: BASF AG

    Abstract: Producing alkoxylate, comprising contacting an ethylene oxide (EO)-containing alkylene oxide mixture with a starter compound in the presence of a binary metal cyanide compound (I) by using a total inert gas and EO pressure of 1.5-6.0 bar in the induction phase, is new. Alkoxylate production by contacting an ethylene oxide (EO)-containing alkylene oxide mixture with a starter compound in the presence of a binary metal cyanide compound of formula (I) comprises using a total inert gas and EO pressure of 1.5-6.0 bar in the induction phase. M1a(M2(CN)b(A)c)d.fM1gXn.h(H2O).eL.kP (I). M1 = Zn2+, Fe2+, Fe3+, Co3+, Ni2+, Mn2+, Co2+, Sn2+, Pb2+, Mo4+, Mo6+, Al3+, V4+, V5+, Sr2+, W4+, W6+, Cr2+, Cr3+, Cd2+, Hg2+, Pd2+, Pt2+, V2+, Mg2+, Ca2+, Ba2+, Cu2+, La3+, Ce3+, Ce4+, Eu3+, Ti3+, Ti4+, Ag+, Rh2+, Rh3+, Ru2+ or Ru3+; M2 = Fe2+, Fe3+, Co3+, Mn2+, Mn3+, V4+, V5+, Cr2+, Cr3+, Rh3+, Ru2+ or Ir3+; A, X = halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate, nitrate, nitrosyl, bisulfate, phosphate, (di)hydrogen phosphate or bicarbonate; L = a water-soluble alcohol, aldehyde, ketone, ether, polyether, ester, polyester, polycarbonate, urea, amide, amine, pyridine, nitrile, sulfide, phosphide, phosphite, phosphine, phosphonate or phosphate ligand; k, e, f, h = 0 or more; P = an organic additive; and a, b, c, d, g, n = numbers such that (I) is electrically neutral and c can be zero. An Independent claim is also included for an alkoxylate produced as above.

    PROCEDIMIENTO PARA LA OBTENCION DE N-FOSFONOMETILGLICINA.

    公开(公告)号:AR034597A1

    公开(公告)日:2004-03-03

    申请号:ARP020102292

    申请日:2002-06-19

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de N-fosfonometilglicina de la fórmula (1) a partir de una mezcla acuosa que contiene disueltos en la misma N-fosfonometilglicina, halogenuros de amonio, así como también halogenuros de metales alcalinos o alcalinotérreos y eventualmente impurezas orgánicas, en donde a) se ajusta el pH de la mezcla a un valor en el rango de 2 a 8; b) se realiza una separación de la mezcla en una membrana de nanofiltración selectiva, obteniéndose un retentato más rico en N-fosfonometilglicina y más pobre en halogenuros y un permeato más rico en halogenuros y más pobre en N-fosfonometilglicina; y c) se obtiene N-fosfonometilglicina a partir de retentato. El procedimiento descripto permite la obtención de la N-fosfonometilglicina con separación simultánea de las sales de halogenuros. La N-fosfonometilglicina, también conocida como glifosato, es un herbicida total ampliamente utilizado en el agro.

    PROCEDIMIENTO PARA LA PREPARACION DE N-FOSFONOMETILGLICINA

    公开(公告)号:AR034596A1

    公开(公告)日:2004-03-03

    申请号:ARP020102291

    申请日:2002-06-19

    Applicant: BASF AG

    Abstract: Procedimiento para la preparación de N-fosfonometilglicina de la fórmula (1) en la que a) se hace reaccionar un derivado de hexadihidrotriazina de la fórmula (2) en donde X representa CN, COOZ, CONR1R2 o CH2OY, Y representa H o un resto que puede ser intercambiado fácilmente por H; Z representa H, un metal alcalino, un metal alcalinotérreo, alquilo C1-18 o arilo opcionalmente sustituido por alquilo C1-4, NO2 o OC1-C4-alquilo; R1 y R2 que pueden ser iguales o diferentes, representan H o alquilo C1-4 con un triacilfosfito de la fórmula (3): P(OCOR3)3 en donde los restos R3, que pueden ser iguales o diferentes, representan alquilo C1-18 o arilo, que está opcionalmente sustituido por alquilo C1-4, NO2 o OC1-4-alquilo en un solvente orgánico; b) se extrae la mezcla de reacción obtenida con agua o una solución acuosa de un ácido o una solución acuosa de una base; c) se separan las fases; y d) se hidroliza el producto obtenido en la fase acuosa. Por este procedimiento se evita la descomposición del solvente orgánico durante la saponificación. La fosfonometilglicina o glifosato es un herbicida total que es utilizado ampliamente.

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