Aluminum hydroxide production

Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423625, 423627, 423628, C01F 702, C01F 742

Patent

active

052252299

ABSTRACT:
A method for the production of aluminum hydroxide, including reacting water in the liquid phase and aluminum at a pH above about 12.4. In this pH range, aluminum hydroxide is produced at acceptable rates both for aluminum surface areas above 75,000 mm.sup.2 /g and for aluminum surface area of less than about 50,000 mm.sup.2 per gram, and even down to 20 mm.sup.2 per gram. According to an alternative view of the invention, it is characterized by the production of aluminum hydroxide by reacting aluminum with liquid water containing choline. Aluminum hydroxide particles having unique morphologies are obtained.

REFERENCES:
patent: 2405275 (1946-08-01), Stowe
patent: 2733219 (1956-01-01), Bloch
patent: 3488147 (1970-01-01), Keith et al.
patent: 3494733 (1970-02-01), Keith et al.
patent: 3655339 (1972-04-01), MacZura et al.
patent: 3899568 (1975-08-01), Frick et al.
patent: 4019914 (1977-04-01), Esper et al.
patent: 4051222 (1977-09-01), Gnyra
patent: 4175118 (1979-11-01), Wassermann et al.
patent: 4568527 (1986-02-01), Anjier et al.
patent: 4582697 (1986-04-01), Cristol et al.
patent: 4585645 (1986-04-01), Sucech
patent: 4595581 (1986-06-01), Misra et al.
patent: 4595665 (1986-06-01), Takayama et al.
patent: 4657754 (1987-04-01), Bauer et al.
patent: 4666687 (1987-05-01), Chantriaux et al.
patent: 4755374 (1988-07-01), Martin et al.
patent: 4822593 (1989-04-01), Wilhelmy
patent: 4847064 (1989-07-01), Pearson
Schmah, V. H. "Finfache Darstellung von gut durchgebiddetem Bayerit" Naturforschg, 1946 pp. 323-324.
Alcoa "Hydrated Alumina" publicity publication pp. 9-10.
Suwa, Yoshiko et al., "Lowering Crystallization Temperatures by Seeding in Structurally Diphasic Al.sub.2 O.sub.3 -MgO Xerogels", J. Am. Ceram. Soc., 68 [9] (1985), pp. 238-240.
Kumagai, Masato et al., "Controlled Transformation and Sintering of a Boehmite Sol-Gel by .alpha.-Alumina Seeding", J. Am. Ceram. Soc., 68 [9] (1985), pp. 500-505.
Lussy, Edward W., "Experience with Operation of the Alcoa Fluid Flash Calciner", Light Metals, (1980), pp. 69-79.
Wefers et al., "Oxides and Hydroxides of Aluminum", Alcoa Technical Paper No. 19, Revised, (1987), pp. 36-37.
Chemical Week, Jun. 1, 1977, pp. 35-36.
Edward et al., The Aluminum Industry, vol. 1, 1st Ed., McGraw Hill, New York (1930), pp. 164-167.

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

Aluminum hydroxide production does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1688311

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