Produit de référence: Aluminium oxide [en]
Unité fonctionnelle: 1000 m3
Région: Chine (CN) · Précision géographique non précisée
Année de référence: 2011

Description du jeu de données

我国氧化铝生产中拜耳法、烧结法、混联法三种工艺并行。因为我国铝土矿主要为品味较低的一水硬铝，单位资源与能源消耗较高。随着生产技术的进步，拜耳法生产的氧化铝在我国铝产量中的比例已经由2000年的11.4%提升到2010年的75.8%，而烧结法则由2000年的23.65%减至5.9%。烧结法氧化铝生产过程中主要的能耗介质中煤占60%，蒸汽约20%，电约12%，其中煤主要消耗在烧成工序，蒸汽主要消耗在脱硅与蒸发工序，油主要消耗在焙烧工序。 [zh]

Description technologique

Alumina produced using the sintering method is mainly utilized in the metallurgy industry for the production of aluminum via the electrolytic process. It is derived from bauxite, typically of a lower grade with higher resource and energy consumption. While the Bayer process is more prevalent in China's alumina production, the sintering method holds a small but specific share, catering to particular types of bauxite and specific production requirements. [en]

Enregistrement

Classification: ILCD · C · Manufacturing; ILCD · 24 · Manufacture of basic metals; ILCD · 242 · Manufacture of basic precious and other non-ferrous metals; ILCD · 2420 · Manufacture of basic precious and other non-ferrous metals