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.)
ROMETALLURGIQUES PECHINEY CIE
Pechiney SA
Original Assignee
ROMETALLURGIQUES PECHINEY CIE
Pechiney SA
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 ROMETALLURGIQUES PECHINEY CIE, Pechiney SAfiledCriticalROMETALLURGIQUES PECHINEY CIE
Publication of ES248500A1publicationCriticalpatent/ES248500A1/en
C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
Landscapes
Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Life Sciences & Earth Sciences
(AREA)
Geology
(AREA)
Inorganic Chemistry
(AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals
(AREA)
Abstract
Process perfected for obtaining alumina, characterized in that it comprises the decomposition of an aqueous solution of sodium aluminate by agitation in the presence of a bait dispersed in said solution, continuously introducing in the said solution a bait constituted by a mixture of alumina trihydrate with a liquid resulting from at least partial decomposition of the starting sodium aluminate solution containing said mixture, at least 40% by weight of al 0. (Machine-translation by Google Translate, not legally binding)
ES0248500A1958-04-091959-04-08Perfected procedure for the production of alumina (Machine-translation by Google Translate, not legally binding)
ExpiredES248500A1
(en)
Procedure for the separation of a salt 4: 4'-bipiridilio of a mix or solution that contains it. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of dialylamide from the 3-chloropiridazon- (6) -1-acetic acid. (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of halogenated derivatives of acetylenodyuride and its substitute products (Machine-translation by Google Translate, not legally binding)