CAJ | 학술논문

通过测定不同电解残渣添加量对电解电流电压曲线和对液镁汇集现象的影响研究,探讨电解残渣对镁电解系统的影响.结果表明:电解残渣严重影响液镁的汇集,且易吸附金属镁使其自身导电,故随电解残渣量的增加,电解过程中出现电子导电、电极电流分布不均匀和电解槽电压迅速降低等现象;电解残渣使阴极镁汇集变差,出现鱼鳞子镁现象,其主要原因是电解残渣吸附在阴极表面,造成湿润角减小;当电解残渣量小于6%时,其对电流效率的影响主要表现是吸附镁损失,而当其量大于6%时,将会出现电极电子短路现象造成电流效率降低,而通过原料净化和保护气氛电解2种方式可降低电解残渣的产生.
통과측정불동전해잔사첨가량대전해전류전압곡선화대액미회집현상적영향연구,탐토전해잔사대미전해계통적영향.결과표명:전해잔사엄중영향액미적회집,차역흡부금속미사기자신도전,고수전해잔사량적증가,전해과정중출현전자도전、전겁전류분포불균균화전해조전압신속강저등현상;전해잔사사음겁미회집변차,출현어린자미현상,기주요원인시전해잔사흡부재음겁표면,조성습윤각감소;당전해잔사량소우6%시,기대전류효솔적영향주요표현시흡부미손실,이당기량대우6%시,장회출현전겁전자단로현상조성전류효솔강저,이통과원료정화화보호기분전해2충방식가강저전해잔사적산생.
The influences of electrolysis residue feeding on the electrolytic current voltage curve and liquid magnesium pooling phenomenon were studied. The results show that the collect of the liquid magnesium is severely affected by the electrolysis residual, which produces electric conduction substance due to adsorption magnesium. With the increased electrolysis residual, phenomena of electric conduction, unequal electrode current and rapidly declining voltages are observed in the electrolysis system. Electrolysis residue causes the worsening aggregation of the liquid magnesium and produces magnesium particle with decreased moist angle for the cathode surface is covered by electrolysis residual. Magnesium adsorbed by electrolysis residual is the main reason for the declining current efficiency at residual content below 6 %. The current efficiency is reduced by the electronic short circuit between anode and cathode at residual content over 6 %. Refining electrolyte and electrolyzing by protection atmosphere can effectively reduce the residue production.