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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DISTILLERIES DES DEUX SEVRES
Original Assignee
DISTILLERIES DES DEUX SEVRES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DISTILLERIES DES DEUX SEVRESfiledCriticalDISTILLERIES DES DEUX SEVRES
Application grantedgrantedCritical
Publication of FR37269EpublicationCriticalpatent/FR37269E/fr
C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
C07C51/42—Separation; Purification; Stabilisation; Use of additives
C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Crystallography & Structural Chemistry
(AREA)
Engineering & Computer Science
(AREA)
Oil, Petroleum & Natural Gas
(AREA)
FR37269D1929-03-191929-03-19Procédé continu d'obtention à l'état concentré de l'acide acétique en partant de ses solutions aqueuses
ExpiredFR37269E
(fr)
Procédé pour fabriquer la 1, 3-diamino-2-hydroxy-anthraquinone en partant de l'acide 4'-hydroxy-ortho-benzoyl-benzoïque et les produits intermédiaires