Über ein basisches Aluminiumchlorid

Treadwell, W. D.; Lien, O. T.

doi:10.1002/hlca.19310140145

Cited by 26 publications

(4 citation statements)

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“…We avoided these difficulties by preparing 0 -1 M aluminium chloride solutions of different basicity by the method of Treadwell and Lien (1931): slightly amalgamated aluminium wire (2.7 g A.R. Al) was dissolved in 15, 20, 23, and 26 ml A.R.…”

Section: Methodsmentioning

confidence: 99%

The Reactions of Soluble Aluminium With Montmorillonite

Brown

1973

Journal of Soil Science

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The amount of aluminium sorbed by calcium bentonite from basic aluminium chloride solutions depends on the ratio of OH to A1 in the original solution.Except when OH/A1 = 0 , only part of the sorbed A1 is exchanged by dilute solutions of barium or calcium chlorides and the exchange capacity of the clay decreases in proportion to the amount of aluminium retained by the clay. Albentonite appears to contain a mixture of A13+ and a basic cation in which OH/Al is 2.5. Neutralizing Al-bentonite with calcium acetate of pH 7.2 restores only part of the exchange capacity and some charged interlayer aluminium is thought to remain in the clay at tKis pH. It seems possible, therefore, that charged interlayer aluminium may be found even in soils with a neutral reaction. describe c P ay-aluminium interaction and to provide material that would

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Section: Methodsmentioning

confidence: 99%

The Reactions of Soluble Aluminium With Montmorillonite

Brown

1973

Journal of Soil Science

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“…Upon losing one H § a 1/3 basic aluminum cation dimer [A12(OH)2(H20)s] +4 is obtained. 1 As the pH is increased, the dimers condense to form chain structures until a stable 2/3 basic aluminum salt [A16(OH)12(H20)~] +6 is formed (Treadwell and Lien, 1931;Hsu and Bates, 1964). As the basicity of the solution is increased further, these six-member ring oligomers coalesce producing a stable 5/6 basic aluminum cation, such as [(A128(OH)70(H20)2s] +14 (Denk and Alt, 1952;Hem and Roberson, 1967).…”

Section: Interlayering Cationmentioning

confidence: 99%

Physicochemical Properties of Montmorillonite Interlayered with Cationic Oxyaluminum Pillars

Occelli¹,

Tindwa

1983

Clays and clay miner.

228

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Abstract--By ion exchanging expandable clay minerals with large, cationic oxyaluminum polymers, "pillars" were introduced that permanently prop open the clay layers. On the basis of thermal, infrared spectroscopic, adsorption, and X-ray powder diffraction (XRD) analysis, the interlayering of commercial sodium bentonite with aluminum chlorohydroxide, lAI1304(OH)24(HzO)12] +7, polymers appears to have produced an expanded clay with a surface area of 200-300 m2/g. The pillared product contained both Br6nsted and Lewis acid sites. XRD and differential scanning calorimetry measurements indicated that the micropore structure of this interlayered clay is stable to 540~ Between 540 ~ and 760~ the pillared day collapsed with a corresponding decrease in surface area (to 55 m2/g) and catalytic cracking activity for a Kuwait gas oil having a 260~176 boiling range.

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“…To avoid confounding the system with Na ions, one can dissolve AI metal in HCI (Treadwell, 1931), or in AICI3 (Barshad, 1960), or react OH-resin with A1C13 (Barnhisel and Rich, 1965). It should be pointed out that hydrolysis increases with dilution and a clear solution does not necessarily mean the system is polymer-free (Aveston, 1965).…”

Section: Synthesis Of Interlayersmentioning

confidence: 99%