Aluminum Compounds, Inorganic

Abstract

The article contains sections titled: 1. Aluminum Sulfate and Alums 1.1. Aluminum Sulfate 1.1.1. Properties 1.1.2. Production 1.1.3. Uses 1.2. Alums 1.2.1. Potassium Aluminum Sulfate 1.2.2. Ammonium Aluminum Sulfate 1.2.3. Sodium Aluminum Sulfate 2. Aluminates 2.1. Sodium Aluminate 2.2. Barium Aluminates 3. Aluminum Alkoxides 4. Aluminum Chloride 4.1. Anhydrous Aluminum Chloride 4.1.1. Properties 4.1.2. Production 4.1.3. Quality Specifications and Analysis 4.1.4. Handling, Storage, and Transportation 4.1.5. Uses 4.2. Aluminum Chloride Hexahydrate 4.3. Basic Aluminum Chlorides 5. Toxicology

Separation of Aluminum Chloride from White Kaolinite by Slime Leaching Process

“…Fig (10) explains that at low molarity such as (3) ,the absorption degree is high , and starting to decrease gradually when the molarity increases specially at (5) molarity, so the optimal molarity was at (3) where the leaching rate increased, this may be due to the presence of the ionic solution at specific pH which increased the leaching rate of alumina in the powder(Ionic decomposition),after that a reaction between the aluminum positive ions with the negative chloride ionsoccured to form AlCl 3 which is soluble product in the solution. This agrees with the explanation of Otto Humboldt and others [14] who explained the effect of pH to form important reagent effected the leaching ability of sediments…”

In Situ XRD Detection of Reversible Dawsonite Formation on Alkali Promoted Alumina: A Cheap Sorbent for CO2 Capture

“…Nevertheless such high breakthrough capacities complete very well the information gathered by the structural study reported herein and support the proposed pathway under relatively high pressure and temperature. In contrast, previous studies on CO 2 sorption on alkali-promoted alumina carried out at ordinary pressure [30] or relative high CO 2 pressure without steam [31] have revealed much lower CO 2 capacities. …”

“…The present experiment shows for the first time that at higher pressures of CO 2 and steam the reformation of K-Dawsonite by a solidϪgas phase reaction occurs. Here again, the reformation process can be explained by enhanced rearrangement mechanisms of alumina under hydrothermal conditions that leads to an intimate mixing between potassium carbonate and aluminium (hydr-)oxide allowing reformation of KDawsonite, KAlCO 3 (OH) 2 . Finally the material adsorption capacity was tested in a fixed-bed reactor over 7 cycles by carrying out adsorption at 300°C and 20 bar total pressure (5 bar CO 2 , 5 bar steam and 10 bar N 2 ) while regeneration was carried out at 500°C and 1 bar total pressure (0.5 bar N 2 and 0.5 bar steam).…”

“…Moreover separation of CO 2 from hot gas streams in such large facilities requires robust and cheap sorbent materials that show both high stability and performance under long-term cyclic regenerative conditions at elevated temperatures and pressures. Activated alkali-promoted alumina materials are inexpensive products (obtained as intermediate during aluminium processing [2] ) and have been intensively studied throughout the last century in both catalysis [3] and acid gas adsorption [4] due to their bonate crystalline phase disappears between 300-400°C, and that K-Dawsonite crystalline phase can be reformed by lowering the temperature in the range 200-300°C and contacting the material with both steam and CO 2 at sufficiently high partial pressure. In a fixed-bed reactor a high breakthrough capacity of 1.5-1.7 mmol g -1 has been measured.…”

Aluminiumhydroxychlorid‐Flockungsmittel aus dem Kupferrecycling aus Abfällen der Leiterplattenproduktion

“…basischen Aluminiumchlorid. Das gelöste Aluminat wurde thermisch in AlCl 3 ·6H 2 O überführt, um ein marktfähiges Präparat zu erhalten. Es bildet nach dem Trocknen zunächst feste Agglomerate, die mithilfe einer Planeten‐Kugelmühle zerkleinert wurden, um ein feines Pulver (Handelsform) zu erhalten.…”