Clay halogenation process

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iiia metal or beryllium

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423137, 423341, 423343, 423 76, 423 79, 423496, 423136, C01G 1500

Patent

active

040828336

ABSTRACT:
One of the major obstacles toward the needed and economic production of alumina and other values from kaolinitic clay and other ores by chlorination has been the slow reaction rates and low yields of the metal values. The present information provides methods for improving reaction rates and/or yields in the halogenation of various ores which comprises the addition of sulfur and/or functionally equivalent sulfur containing compounds as an ore conditioning agent and/or reaction promoter. These improvements also permit operation at low temperatures with advantage of savings of energy and of equipment and maintenance costs. The invention is applicable to both displacement halogenation and carbo-halogenation processes. The sulfur and/or functionally equivalent sulfur containing compounds can be added to the reaction mass during pre-halogenation steps or to the halogenation step or to combinations of steps ordinarily with additional benefits. The preferred embodiments are directed toward the carbochlorination of ores with illustrative examples given for clay, bauxite, ilmenite and aluminum phosphate; and for displacement chlorination of ores with illustrative examples given for hematite and ilmenite.

REFERENCES:
patent: 2127240 (1938-08-01), Stott
patent: 3244509 (1966-04-01), Nowak et al.
patent: 3861904 (1975-01-01), Othmer
Chemical Abstracts, vol. 55, Nos. 14223d,f, 20346, (1961).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Clay halogenation process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clay halogenation process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clay halogenation process will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-724285

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.