Introduction of Karamay Petrochemical Company

Established in 1959, Karamay Petrochemical Company（KPC） is an oil refining enterprise directly managed by PetroChina. It is located in Karamay Oilfield in the northwestern Xinjiang.     

Construction of One-Million-Ton-Class Ethylene Project Kicked off at Dushanzi

The construction of a 10-Mt/a oil refining and 1.0 Mt/a ethylene project at PetroChina Dushanzi Petrochemical Company （DPC） was kicked off in August 2005. This project includes 20 petroleum refining units and 12 chemical units with the budgeted investment amounting to 26.2 billion RMB. The construction of refining units is expected to be finished in 2007, while the construction of chemical units is slated for completion in 2008. After commissioning of the process units a production capacity of 5.5 Mt/a of finished petroleum products and 1.82 Mt/a of chemical products will be formed.     

文章摘要的写作要求

（1）用第三人称。作为一种可供阅读和检索的独立使用的文体，摘要只能用第三人称而不用其他人称来写。 （2）简短精炼，明确具体。简短，指篇幅短，一般要求50～300字（依摘要类型而定）；精炼，指摘录出原文的精华，无多余的话：明确具体，指表意明白，不含糊，无空泛、笼统的词语，应有较多而有用的定性和定量的信息。     

SGJ系列铝液精炼及变质效果检测仪

SGJ-Ⅰ型铝合金液精炼效果在线快速检测仪采用减压凝固试样、密度测试方法，定性与定量测试相结合，可广泛应用于各种铝合金的精炼效果检测，使用方便、测试数据准确、快速，在铝合金液精炼后静置的5分钟，即可得到铝合金液精炼效果，保证了铝铸件生产中精炼工序可靠性。SGJ-Ⅱ型铝合金液精炼、变质效果在线快速检测仪是在SGJ-Ⅰ铝合金液精炼效果在快速检测仪基础上研制开发的二代产品，     

铜精炼反射炉筑炉实践

文章详细介绍了铜精炼反射炉各主要部位的砌筑方法     

废铜的分类

一、一次废铜 如不合规格的阳极、阴极和坯料,阳极废品.这些废料不能进行深加工或出售,通常是将其返回上一步工序,不合规格的铜通常重新返回转炉或阳极炉进行电(解)精炼,有缺陷的坯料则进行重熔和重铸.