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Thermal stability of crandallite CaAl3(PO4)2(OH)5·(H2O)
A ‘Cave’ mineral from the Jenolan Caves
stability stems from the use of aluminophosphates as fertilizers [ 12 – 15 ]. Despite this interest, there have been very few studies on the thermal analysis of crandallites. Thermal analysis offers an important technique for the determination of the
autoclave heating. It is also energy efficient and economical [ 9 – 16 ]. This method has been successfully applied and reviewed for the synthesis of several types of zeolites, namely zeolite A, Y, ZSM-5, MCM-41, metal substituted aluminophosphate, silico-aluminophosphate
. Oxidation of glycerol with hydrogen peroxide using silicalite and aluminophosphate catalysts . Catal Lett. 1999 ; 63 : 193 – 7 http://dx.doi.org/10.1023/A:1019073122592 . 23. Nakamoto
introduction of silicon in the structure of aluminophosphate [ 8 ]. It was already observed that the microporous molecular sieves, such as ZSM-5 zeolite, present potential use as acid catalyst, for its uniform microporous structures and strong acidity [ 9
process into a heterogeneous one is to anchor the soluble catalyst on to large surface area inorganic supports [ 15 , 16 ]. Many different solid catalysts such as metal oxides [ 17 ], zeolites [ 18 ], aluminophosphates [ 19 ] can be used to heterogenize
.06.018 . 16. Faivre , A , Viviani , D , Phalippou , J 2005 Mixed alkali effect in Li and Na aluminophosphate glasses: influence of the cation environment . Solid State Ionics 176 : 325 – 332 10.1016/j.ssi.2004
.1016/0040-6031(88)87400-8 . 5. Tosi-Pellenq , N , Grillet , Y , Rouquerol , J , Llewellyn , P 1992 A microcalorimetric comparison of the adsorption of various gases on two microporous adsorbents: a model aluminophosphate and a natural clay
and H 2 O at 340 °C [ 17 ]. Oxidation of n -hexane with molecular O 2 catalyzed by Co and/or Mg deposited on aluminophosphate zeolite yielded various alcohols, acids, aldehydes and ketones at 200 °C [ 18 ]. n -Hexane combustion could be promoted by
