1、毕业设计（论文） 1 1 年产 700 吨氧化铝的车间工艺设计 摘要：本设计为年产 700 吨氧化铝的车间工艺设计，介绍了含氧化铝量为 28%的高岭土类矿石在盐酸的作用下浸 出，在萃取分离后经与氨水反应生成氢氧化铝，后经煅烧生成氧化铝。根据设计要求，对生产原理和工艺流程进行了 选择和论证，对整个装置进行了物料衡算和热量衡算，对主要设备进行了设计和选型，同时对本装置的安全生产与三 废治理做了相关的探讨。 关键词：高岭土; 盐酸; 氧化铝 The Technical Contrivance of 700ton Alumina Factory Ract Abstract:This design is
2、 focused on the product of 700 tons alumina technical contrivance. The production procedure of kaolinite solution is presented. The kaolinite are containing alumina 28% and react with hydrochloric acid to produce the aluminium solution. The solution is treated by extraction system and react with amm
3、onia water ,aluminium hydroxide will be precipitated out. Using roaster calcing it and alumina is produced. according to the design, the produce principle and craft production way of formaldehyde are selected with the techonology also investigated. The calculating mass balance and the heat balance o
4、f the subordination equipments; Right for the major equipment design and selection, on the devices safety production and waste management have done a related study. Key words:kaolinite; hydrochloric acid; alumina 毕业设计（论文） 2 2 目录 1 总论 5 1.1 世界铝土矿的情况 6 1.2 国内铝土矿的情况 6 1.3 国内氧化铝工业现状 7 1.4 国内氧化铝工业的发展前景 8 2 主要反应物与产品性质 9 2.1 矿石资料 9 2.2 氧化铝的性质 9 2.3 铝的性质 .10 2.4 盐酸的性质 .10 2.5 氨水的性质 .11 3 生产工艺的选择 5 15 14 135 15 14 13 .12 3.1 氧化铝的生产方法 4412 3.1.1 酸法生产氧化铝 .12 3.1.2 碱法生产氧化铝 .12 3.1
