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1. (WO2017150962) SYNTHESIS PROCESS FOR THE PRODUCTION OF QUARTERNARY CATIONIC SALTS THAT ARE USEFUL AS CHEMICAL TRACERS IN CARBONATE RESERVOIRS, AND PRODUCTS PRODUCED WITH SAME

Pub. No.:    WO/2017/150962    International Application No.:    PCT/MX2017/000024
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: C07C 211/63
C07C 211/52
C09K 8/58
Applicants: UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Inventors: LÓPEZ RAMÍREZ, Simón
ROMERO ÁVILA, Margarita
DURÁN VALENCIA, Cecilia de Los Ángeles
MALDONADO DOMÍNGUEZ, Carlos Mauricio
GONZÁLEZ ANTONIO, Oscar
ALMARAZ GIRÓN, Marco Antonio
CAÑAS ALONSO, Roberto Carlos
SOLANO VELÁZQUEZ, Alan Valentín
DÍAZ PAULINO, Luis Enrique
MATÍAS PÉREZ, Víctor
HERNÁNDEZ VARGAS, Iván
BARRAGÁN AROCHE, José Fernando
Title: SYNTHESIS PROCESS FOR THE PRODUCTION OF QUARTERNARY CATIONIC SALTS THAT ARE USEFUL AS CHEMICAL TRACERS IN CARBONATE RESERVOIRS, AND PRODUCTS PRODUCED WITH SAME
Abstract:
The invention relates to a process for the production of organofluoride quarternary cationic salts, comprising the following steps: a) adding a base; b) suspending the base in a suitable polar organic solvent; c) including an alkylating agent via slow addition; d) slowly adding an organofluoride substrate; e) heating the reaction mixture produced in the preceding step d); f) bringing the reaction mixture to ambient temperature; g) filtering the reaction mixture under vacuum, washing the remaining solid with a polar organic solvent; h) accelerating the evaporation of the solvent to complete dryness, producing a whitish solid; i) washing the solid with a non-polar organic solvent; j) purifying the compound produced in the preceding step i), using a polar or non-polar organic solvent, wherein the cationic salts produced with this method are used as chemical tracers to determine the heterogeneity in carbonate-type oil fields.