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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A process for the purification of lactic acid, characterized in that the broth of encentrado origin with a lactic acidity of the order of 50% previously prepared by selective oxidation process, then passing to a previous reducing wash the atom-micronized with a organic solvent and subsequently cyclonized to obtain the separation of layers of more acidic solvent and mother liquor, then to carry out a second reducing wash of the solvent-acid system followed by distillation to benefit the solvent and obtain the pure lactic acid separately. (Machine-translation by Google Translate, not legally binding)
ES0297969A1964-03-241964-03-24A procedure for the purification of lactic acid (Machine-translation by Google Translate, not legally binding)
ExpiredES297969A1
(en)
Recovery procedure of pirrolidone-carboxylic acid, starting from various mixtures, especially from beet juice (Machine-translation by Google Translate, not legally binding)
A method of purifying impured aqueous solutions containing vitamin b12, and variants of the same (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 5-fluor-2-methyl-1- (p-metilsulfinilbenciliden) -3-indenil-acetic acid. (Machine-translation by Google Translate, not legally binding)