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.)
Expired
Application number
GB20326/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Publication of GB297381ApublicationCriticalpatent/GB297381A/en
C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F5/00—Compounds of magnesium
C01F5/14—Magnesium hydroxide
C01F5/22—Magnesium hydroxide from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides
Abstract
297,381. I. G. Farbenindustrie Akt.- Ges. Sept. 20, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Magnesium chloride and hydroxide.-Dolomite is calcined sufficiently to convert the whole of its magnesium content to oxide and then treated with calcium chloride solution and carbon dioxide to obtain a solution of magnesium chloride and a residue of calcium carbonate. From the chloride solution obtained magnesium hydroxide may be precipitated by lime or calcined dolomite with recovery of calcium chloride solution for re-use.
GB20326/28A1927-09-201928-07-12Process for the production of magnesium compounds and particularly magnesia, from dolomite
ExpiredGB297381A
(en)