Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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COAL TAR RES ASS
Akzo Nobel UK PLC
Original Assignee
COAL TAR RES ASS
Courtaulds PLC
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Filing date
Publication date
Application filed by COAL TAR RES ASS, Courtaulds PLCfiledCriticalCOAL TAR RES ASS
Priority to FR869990ApriorityCriticalpatent/FR1296902A/fr
Application grantedgrantedCritical
Publication of FR1296902ApublicationCriticalpatent/FR1296902A/fr
C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
C07C51/42—Separation; Purification; Stabilisation; Use of additives
C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C46/00—Preparation of quinones
C07C46/10—Separation; Purification; Stabilisation; Use of additives
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
C07C51/54—Preparation of carboxylic acid anhydrides
C07C51/573—Separation; Purification; Stabilisation; Use of additives
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Engineering & Computer Science
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Oil, Petroleum & Natural Gas
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FR869990A1961-08-031961-08-03Procédé pour séparer la naphtoquinone d'un mélange la contenant avec des acides phtalique et maléique
ExpiredFR1296902A
(fr)
Procédé pour séparer l'acide dextro-trans-pyréthrique de l'acide dextro-trans-B-(2,2-diméthyl-3-méthoxycarbonyl-cyclopropyl) méthacrylique dans un mélange des deux composés
Procédé de séparation des produits de réaction de l'eau, du trifluorure de bore et d'un oxyde minéral modifié par ce trifluorure d'avec un hydrocarbure liquide contenant ces produits