On the utilization of aluminium and its alloys in the wine and brandy industry (14th Report):The influence of the iron-exchange treatment on the anti-corrosive effect of 1S in dry red wine

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To know about the utilization of the ion-exchange treatment for the counter-plan to the corrosion and to find the chemical compositions which influence to the attack of wine to aluminium alloy, corrosion tests were made in red wine treated with ion exchange resin.The ion exchange resin used were Amberlite IR-120 and Amberlite IRA-410 made by Rhon and Haas Co. The red wine was treated in "single bed system" or "double bed system". The specimens (10×50×1mm 1S plate) were dipped in this red wine, then, the following experiments were made:Measurement of the dissolved amount of specimen and the disappearing time of metallic briliance on the surface; Test of the change in flavour and taste of wine; Measurement of the change in pH-value or major mineral contents.It was found out that the dissolved amount of specimen in red wine cannot be controled in particular by the ion exchange treatment, but the flavour and taste tend to be improved regardless of the time of dipping in cation exchanged wine as well as the cation exchange-anion exchanged wine.This paper also states about the study on the corrosion resistance peoperties of 1S in the ion-exchanged red wine added with typical two sorts of poly-phosphate adding agents which seals the attack of red wine to the aluminium and improves the flavour and taste of wine as previously reported.
一般社団法人軽金属学会の論文