通过对某一具体铝电解项目清洁生产水平分析,并与我国铝电解行业清洁生产水平现状相比较,揭示了我国目前铝电解行业在清洁生产方面存在的问题,参照国际先进铝电解生产技术经济指标,指出我国铝电解行业发展方向及应采取的有效措施.

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利用固体透氧膜(SOM)法直接由含钛渣还原制备金属钛及其合金。将粉态含钛渣压片制成阴极,以YSZ管内碳粉饱和的铜液为阳极,以1100℃电解温度、3.5V槽电压在CaCl2熔盐中电解,研究成型压力及电解时间对电解产物的影响,分析电解过程中的杂质行为。结果表明,随电解时间的延长,电解产物中的钛、铁含量不断增大,产物颗粒形貌趋于匀细疏松;对于铁钛渣,电解6h可获得钛铁合金;对于高钛渣,成型压力为3MPa时,电解4h可除去氧,电解6h可获得纯金属钛;较小成型压力下的多孔阴极有利于杂质元素的去除。

Ti and Ti alloy were prepared by solid oxygen-ion membrane (SOM ) process from Ti-bear-ing slag directly .Ti-bearing slag powder was pressed into pellets and then employed as the cathode , and carbon-saturated liquid copper loaded in YSZ tube was used as the anode ,which were electrolyzed in molten CaCl2 at 1100 ℃ with a potential of 3 .5 V .The influence of forming pressure and electro-lytic time on electrolytic products was analyzed .The results show that Ti and Fe increase in content with electrolytic time ,whose morphology develops towards even ,fine and loose .Ti-Fe alloy can be obtained from Ti-Fe slag after electrolysis for 6 h ,and for Ti-rich slag ,when the forming pressure is 3 MPa ,electrolysis for 4 h can remove oxygen completely and for 6 h ,yield pure Ti .Under small forming pressure ,the porous cathode helps remove the impurities .

采用隔膜电解法生产硫酸亚锡,在电解过程中阳极板上均产生一定量的阳极泥。产生的阳极泥沉在隔膜槽底,累积到一定程度将会影响整个电解过程的电解效率。文章针对如何减少电解过程中阳极泥的产出量进行了研究,重点探讨了电解电压、电解酸酸度、阳极板杂质等因素对阳极泥的影响。结果表明,电解电压的高低,阳极板中杂质的含量对阳极泥的产出量有显著的影响。

Stannous sulfate was produced by diaphragm electrolysis. In the process of electrolysis, a certain amount of anode slime is found on the positive plate. The anode slime sinks in the bottom of the diaphragm tank, when it accumulates to a certain extent, it will have an affect on the efficiency of the whole process of electrolytic. In this topic, how to reduce the production of anode slime in the process of electrolysis is mainly studied .The factors such as electrolytic voltage, electrolytic sour degrees and the impurities of anode plate are discussed, which have an impact on the anode slime. It is shown that, the level of electrolytic voltage and the Impurity ion content on the positive plate have a significant impact on the production of anode slime.

本文探讨了强碱电解水的制备工艺，通过对电解池串联块数、电解液种类、电解液浓度和电解电压的实验，得出选用两块电解池串联，电解液为碳酸钾（K2 cO3）溶液，其质量浓度为0.5%，电解电压为21 V 时可快速制得 pH 值为11.55的电解碱水。实验中对电解碱水保质时间的测定，可以得出新制的电解碱水在封闭条件下可以短时间保存。

In this thesis,the preparation of strong alkaline electrolyzed water was discussed. The number of electrolytic cell''s blocks in series,type of electrolyte,the electrolyte concentration and the electrolysis voltage were investigated. The results show that:when choosing two blocks of electrolytic cell in series,using potassium carbonate(K2 cO3 )solution as the electrolyte,the concentration of K2 cO3 solution was 0. 5% and the electrolysis voltage was 21 V,the pH value of 11. 55 of alkaline electrolysis water can be quickly obtained . By the determination of the shelf time of the electrolytic alkaline water,it shows that strong alkaline electrolyzed water can be stored in short time under closed conditions.

文章综述了电解二氧化锰生产工艺,对电解二氧化锰的生产技术、掺杂改性等方面进行了详细的评述,并展望了电解二氧化锰工业的发展趋势。

In the article, the progress of Electrolytic manganese dioxide production technology in recent years was described, and conducted a detailed review of doping、modification process for the production of Electrolytic manganese dioxide, Electrolytic manganese dioxide industry trends and prospects were prospected.