Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Dehydration of Magnesium Chloride.

Authors
Dolezal-H
Source
U S Pat 3 962 408 1976 Jun; :
Link
NIOSHTIC No.
10011894
Abstract
Mgcl2, either as a solid hydrate or in solution as a brine, in the presence of a slight excess of an amine hydrochloride is heated to evaporate water and produce successively a hydrated equimolar addition compound, the anhydrous addition compound, and anhydrous mgcl2 suitable for electrolysis to mg metal. The volatilized amine hydrochloride is condensed and recycled. Suitable amines include diethylamine, triethylamine, and ethylenediamine; aniline; pyridine; toluidine; and picoline. In an example, 105 parts of mgcl2.Nh2o is mixed with 130 parts of aniline hydrochloride and heated to 100 deg c to evaporate free h2o. On further heating, hydrate h2o is evaporated at 180 deg c, mg oxides are converted to mgcl2 at 198 deg c, and the complex is decomposed to mgcl2 and aniline hydrochloride at 250 deg-320 deg c.
Publication Date
19760601
Document Type
PA;
Fiscal Year
1976
NTIS Accession No.
NTIS Price
Identifying No.
PAT 3,962,408
NIOSH Division
SLRC;
Source Name
U.S. Pat. 3,962,408; June 8, 1976; Chem. Abstr. 84:P166,871a
TOP