<報文>塩化アルミニウム電解浴添加塩としての塩化マグネシウムについて

概要

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Measurement of melting temperatures and specific electrical conductances of the AlCl_3 -MgCl_2 melts have been performed to study the nature and influence of MgCl_2 as the salt additive claimed in the recent patents for the AlCl_3 electrolytic processes. The addition of MgCl_2 only lowers the melting temperature of the bath and does not form any compound that may precipitate during electrolysis. The contribution of MgCl_2 to the improvement of the conductance of the bath is not expected and the addition of MgCl_2 may even increase the ohmic losses. Through the salt bath chlorination experiments chlorine gas dissolved in the melt containing MgCl_2 is found less reactive and its influence on the current efficiency of AlCl_3 electrolysis is discussed. Before utilization of MgCl_2 as the salt additive to the AlCl_3 electrolytic bath, several other aspects such as prices, handling difficulty, etc. must be taken acount of.
東北大学の論文
1981-10-20