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Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Furan Compounds
(AREA)
Abstract
Process for the manufacture of furfurol by the decomposition of aqueous solutions of pentoses by mineral acids, especially hc1, to heat, characterized in that a solution of pentoses, preferably concentrated for example at 30%, is gradually introduced into a solution diluted hc1, through which water vapor is conducted at the same time whose conditions of quantity and temperature are such that the concentration of the reaction mixture does not vary with respect to hc1 and pentoses, while furfurol it is taken immediately after its formation by water vapor. (Machine-translation by Google Translate, not legally binding)
ES1969150971U1969-08-041969-08-04
A FIXED HAND FOR CABINETS.
ExpiredES150971Y
(en)
A procedure for the obtaining of license carbonate of elevated purity, particularly of brutous lyric chloride, in aquatic solution (Machine-translation by Google Translate, not legally binding)
A procedure for obtaining mono-, di- or poly-hydroxy-alcohylxyantins and their nitric esters (Machine-translation by Google Translate, not legally binding)
A procedure for the continuous precipitation of gelatinous products, especially of pigments. (Machine-translation by Google Translate, not legally binding)