日本住友铝冶炼公司菊本铝联合企业,停止了普通铝绽的生产而转向生产高纯铝和特种氧化铝,以及无机材料和陶瓷,职工减到400名。日本能够生产高纯铝的厂家只有住友和日轻两家。采用三层法产能为3600吨,纯度可达99.998％以上,采用偏析法产能为2000吨。由 Japan’s Sumitomo Aluminum Smelter Co., Ltd., a joint venture of Kikumoto Aluminum, stopped production of ordinary aluminum flares and turned to produce high-purity aluminum and specialty aluminas, as well as inorganic materials and ceramics with 400 workers. Japan is able to produce only high-purity aluminum Sumitomo and Japan, the only two light. The three-tier production capacity of 3600 tons, purity up to 99.998%, segregation capacity of 2,000 tons. by