Process related copper leaching during a combined wood preservation process |
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Authors: | Andreas Treu Erik Larnøy Holger Militz |
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Affiliation: | 1. Section Wood Technology, Norwegian Forest and Landscape Institute, Pb. 115, 1431, ?s, Norway 2. Section of Wood Biology and Wood Products, University G?ttingen, Büsgenweg 4, 37077, G?ttingen, Germany
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Abstract: | A combined wood impregnation process including impregnation with a chromium-free wood preservative and oil treatment was evaluated with regard to leaching of copper during the oil process. Two different experimental setups make up the balance of copper content in oil, wood samples and condensate water, also taking different fixation times and process durations into account. Copper is sufficiently fixed after 24 hours, and leaching of copper into the oil is low. Increasing the oil process time does not lead to increased leaching. The hot oil treatment of impregnated wood under vacuum atmosphere is a fast drying method without major negative consequences for the impregnated copper. |
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