Enhance decarboxylation reaction of carboxylic acids in clay minerals

Negrón‐Mendoza, A.; Ramos, S.; Albarrán, G.

doi:10.1016/0969-806x(95)00219-n

Cited by 10 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One possible explanation for the emergence of some of these compounds is esterification and decarboxylation reactions. Reactions of this kind have also already been observed with or with the participation of clay minerals and zeolites [47][48][49]. It is to be assumed that the reaction products similarly undergo further reactions, which would ultimately lead to mineralization coupled with the production of carbon dioxide and water.…”

Section: Thermal Extraction In the Microchambermentioning

confidence: 93%

Catalyzed Reactions on Mineral Plaster Materials Used for Indoor Air Purification

Gunschera¹,

Markewitz²,

Koberski³

et al. 2013

CLEAN Soil Air Water

View full text Add to dashboard Cite

Zeolites have been used for a long time for purification and catalytical purposes. Recently, first products appeared on the market using zeolites also for improving the indoor air quality so far volatile organic compounds (VOC) are concerned. However, porous compounds like zeolites can be found also in plaster material. Therefore, it was manifest to evaluate the capability of plaster with regard to air cleaning. In this article, the contribution of plaster compounds toward adsorption and catalytical decomposition of VOCs is evaluated using a-pinene, chlorobenzene, 2-ethoxyethylacetate, and pentanal as target substances under standard conditions (238C, 50% r.H.). These compounds were chosen because of their VOC typical physicochemical properties like molecular dimensions, density, boiling point, vapor pressure, and octanol-water distribution coefficient (logk ow ). Hydrated lime and metakaolin were found out to have good adsorption properties under these circumstances. Also natural zeolites showed good results especially on pentanal. By investigations in environmental chambers the reduction potential of test plasters on chlorobenzene and 2-ethoxyethylacetate concentrations could be shown. Application of coatings had no or only temporary influence on the performance of the plaster. Additional tests in small chambers demonstrated the possibility to improve the properties of plasters with help of FAU-or MFI-type zeolites but the experiments also showed that a-pinene and pentanal undergo chemical reactions. Further effort should be made on investigations also toward other compounds, especially more volatile ones like formaldehyde. Also additional building materials like insulation material or boards should be taken into account.

show abstract

Section: Thermal Extraction In the Microchambermentioning

confidence: 93%

Catalyzed Reactions on Mineral Plaster Materials Used for Indoor Air Purification

Gunschera¹,

Markewitz²,

Koberski³

et al. 2013

CLEAN Soil Air Water

View full text Add to dashboard Cite

show abstract

“…They studied the radiation-induced decomposition of a carboxylic acid adsorbed in a clay mineral (Ramos- Bernal and Negrón-Mendoza, 1992;Negrón-Mendoza, et al, 1993;Negrón-Mendoza, et al, 1995, andRamos-Bernal, 1998). They studied the radiation-induced decomposition of a carboxylic acid adsorbed in a clay mineral (Ramos- Bernal and Negrón-Mendoza, 1992;Negrón-Mendoza, et al, 1993;Negrón-Mendoza, et al, 1995, andRamos-Bernal, 1998).…”

Section: Heterogeneous Catalysis By Radiation Relevance In Chemical mentioning

confidence: 99%