PROCEDURE FOR THE CONTINUOUS OBTAINING OF 2-PHOSPHONOBUTANE-1,2,4-TRICARBOXYLIC ACID AND ITS ALKALINE METAL SALTS.

摘要

THE PRESENT INVENTION REFERS TO AN IMPROVED PROCEDURE FOR THE PRODUCTION OF 2- PHOSPHONOBUTANE-1,2,4-TRICARBONIC (PBTC) AND ITS ALKANINE METALLIC SALTS IN A CONTINUOUS PROCESS. THE PROCEDURE CONSISTS OF (A) REACTION A DIALKYL PHOSPHITE AND AN ETHENO - 1,2 DIALKYLESTERDICARBONIC IN THE PRESENCE OF BASIC CATALYZERS TETRALKYL STERILE, (B) TREAT THE STERILE OBTAIN ESTIMATE BASICS AND (C) SAPORIFY THE REACTION PRODUCT OF B) TO OBTAIN THE 2 - PHOSPHONUTUTANE 1,2,4 - TRICARBONIC (PBTC) OR ITS ALKALINE METALLIC SALTS. DIALKYLPHOSPHITE IS CHOSEN BETWEEN DIMETHYL OR DIETHYLPHOSPHITE AND ETHENO - 1,2 DIALKYL ESTERDICARBONIC IS CHOSEN BETWEEN DIMETILESTER, DIETILESTER OF MALECNIC OR FORMARIC ACID.