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PIERRE LEPERS
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PIERRE LEPERS
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C07C7/00—Purification; Separation; Use of additives
C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
C07C7/17—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with acids or sulfur oxides
C07C7/171—Sulfuric acid or oleum
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FR503982A1917-12-271917-12-27Procédé de séparation à l'état pur du métaxylène
ExpiredFR503982A
(fr)