Waste glycerol purification involves pre-purifying glycerine impurity content and neutralizing with acid under stirring
NOVELTY – Waste glycerol purification involves pre-purifying glycerine impurity content at 35-55 wt% and neutralizing with acid under stirring to adjust pH 7.0. The obtained glycerine is filtered in vacuum, in which an anti-polymerizing salt is added. USE – Method for purifying waste glycerol. ADVANTAGE – The method purifies the glycerol in cost-effective and eco-friendly and manner without generating pollutant byproducts and wastewater. DESCRIPTION OF DRAWING(S) – The drawing shows a flowchart for pre-purification and purification of residual glycerin. (Drawing includes non-English language text).
Main Application Field
E17 (Other aliphatics.); J01 (Separation – including evaporation, crystallisation, solvent extraction, chromatography, dialysis, osmosis including drying gases and/or vapours, and separation of solids from gases, liquids and other solids. Isotope separation, filter materials (including molecular sieves for separation), and centrifuges (except where used for analysis) (B01D, B03, B04, B07B).)
INVENTORS:
DA SILVA NIVEA DE LIMA
MACIEL MARIA REGINA WOLF
MACIEL RUBENS JR
BATISTELLA CESAR BENEDITO
271_RESIDUO
Patent number: BR200906818-A2
PATENT STATUS:
GRANTED
FOR ADDITIONAL INFORMATION:
parcerias@inova.unicamp.br
+55 (19) 3521-5207 / 2607
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