PROCEDIMIENTO PARA LA DEPURACION DE LAS AGUAS RESIDUALES DE UNA REACCION DE ALDOLIZACION CON LA SUBSIGUIENTE HIDROGENACION

• Main Authors: ROTZHEIM, MARIOLA, ZGORZELSKI, WOLFGANG
• Format: Patent
• Language: Spanish
• Published: 16.11.2002
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

SE DESCRIBE UN PROCEDIMIENTO PARA LA PURIFICACION DE AGUAS RESIDUALES, QUE PROCEDEN DE LA PREPARACION DE ALCOHOLES, COMPRENDIENDO ESTA PREPARACION DE ALCOHOLES UNA REACCION DE ALDOLIZACION, UNA HIDROGENACION ASI COMO UNA DESTILACION FINAL DE ALCOHOL. ESAS AGUAS RESIDUALES CONTIENEN DIFERENTES FRACCIONES DE AGUAS RESIDUALES DE LAS DIFERENTES ETAPAS DE LA PREPARACION DE ALCOHOL. EL PROCEDIMIENTO PARA LA PURIFICACION DE ESTAS AGUAS RESIDUALES INCLUYE UNA ACIDIFICACION Y EXTRACCION DE UNA O DE VARIAS DE ESTAS FRACCIONES DE AGUAS RESIDUALES, Y SE CARACTERIZA PORQUE UNA O VARIAS DE LAS FRACCIONES DE AGUAS RESIDUALES SE PONEN EN CONTACTO EN EL TRANSCURSO DEL PROCEDIMIENTO CON UN FILTRO DE COALESCENCIA. Purification of 3 waste liquor fractions from the production of alcohols by aldol condensation and hydrogenation comprising extraction with 8-16C monoalcohols and/or 6-12C hydrocarbons in which before extraction, at least 2 of the 3 fractions are combined and adjusted to pH 0-6 and the resultant organic phase is optionally separated and 1 or more of the fractions is contacted with a coalescing filter during purification. Purification of waste liquor from the production of alcohols by aldol condensation and hydrogenation, which consists of 3 fractions, comprising: (1) the aqueous phase containing catalyst from aldol condensation; (2) the washing water from the purification of the alpha , beta -unsaturated aldehyde obtained in the aldol condensation stage; and (3) the washing water from the purification of the residue from alcohol distillation. Purification involves extracting the waste liquor with 8-16C monoalcohols and/or 6-12 C hydrocarbons. Before extraction, at least 2 of the 3 fractions are combined and adjusted to pH 0-6, preferably 1-3 and the resultant organic phase is optionally separated and 1 or more of the fractions is contacted with a coalescing filter during purification.