Limestone silane

Nevertheless, with regard to filler treatment and limestone impregnation, it is still considered difficult to coat calcium carbonate with silicone. As shown in Table 1, the commercial monomeric silanes that are used for coating the surfaces of fillers nowadays are not effective for coating calcite [19, 20, 21]. The idea that the production of a silicone-coated surface is difficult may result from the misconception that attachment of high silicone polymers to calcium carbonate is equally problematic. The issue of attachment of silicone to the mineral surfaces has still not been finally resolved [62]. 

More detailed discussion regarding the model performance is given by Wen and Fan (1975) and Mori and Wen (1975). The literature-reported applications of this model include a combustion study of coal with limestone injection by Horio and Wen (1975), a coal gasification study by Mori et al. (1983), a study on catalytic oxidation of benzene by Jafffes et al. (1983), a catalytic ammoxidation of propylent by Stergiou and Laguerie (1983), a silane decomposition study by Li et al. (1989), a catalytic oxidation of methane by Mleczko et al. (1992), and a study on chlorination of rutile by Zhou and Sohn (1996). 

The effect of other organosilanes on deteriorated limestone was investigated. Particular attention was paid to the depth of penetration, effects on color, and the degree of consohdation. A solution of acryhc silane in methyltrimethoxysilane was found to be the most suitable consolidants for use on limestone (Bradley, 1987). It was also shown that organosilanes do not encapsulate salt in stone and that soluble salts could be removed by a poulticing technique following consolidation. 

Thickett D, Lee NJ, Bradley SM (2000) Assessment of the performance of silane treatments applied to Egyptian limestone sculptures displayed in a museum environment. In Fassina V (ed) Proceedings of 9th international congress on deterioration and conservation of stone, Venice, Vol 2, 19-24 June. Elsevier Science, Amsterdam, pp 503-511 Toniolo L, Poll T, Castelvetro V, Manariti A, Chiantore O, Lazzari M (2002) Tailoring new fluorinated acrylic copolymers as protective coatings for marble. J Cult Herit 3(4) 309-316. doi 10.1016/S 1296-2074(02)01240-2... 

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