高效制酸新技术在大冶转炉烟气制酸技改工程的应用

全面介绍了大冶转炉烟气制酸技改工程中应用的新技术,采用的设计管理模式,“以人为本”的设计理念及“环保”、“节能”的措施。     

韶冶铅锌烧结机低浓度烟气两转两吸制酸工艺改造

对韶冶160kt／a铅锌烧结机低浓度烟气制酸系统改造工程的设计和生产实践进行总结，提出存在的问题及相应改进措施。该工艺采用Ⅳ Ⅰ—Ⅲ Ⅱ“3 1”二次转化流程，能实现自热平衡，转化率达99、7％。     

韶冶铅锌烧结机低浓度烟气两转两吸制酸工艺改造

对韶冶 16 0kt a铅锌烧结机低浓度烟气制酸系统改造工程的设计和生产实践进行总结 ,提出存在的问题及相应改进措施。该工艺采用ⅣⅠ—ⅢⅡ“3+1”二次转化流程 ,能实现自热平衡 ,转化率达 99.7%。     

大冶转炉烟气制酸技改工程的设计与投产

介绍了大冶有色金属公司冶炼厂铜转炉烟气制酸技改项目的工艺设计、装备水平,以及试车投产情况。该项目引进了动力波洗涤净化技术和低位高效的干吸技术,实践证明整个系统的设计是成功的。     

艾萨熔炼烟气制酸述评

介绍了云南铜业股份有限公司为配合铜火法冶炼系统改造进行的硫酸系统改扩建。对硫酸三、四系列的工艺及设备进行对比,分析总结了两个系列的工艺流程及设备特点,指出存在的问题并提出了解决方法。     

炼铜烟气制酸干法净化攻关试验

一、前言冶炼烟气制酸干法净化流程开始于1958年大跃进时期的“土接硫”(即土法接触硫酸)1966年,在南京化工设计研究院的协助下,富春江冶炼厂发展了“土接硫”的工艺,     

氟化盐制酸反应炉的改造

反应炉是确保氟化盐生产连续、优质、高产的重要热 工设备，、本文从生产实际出发，对反应炉的主要故障、“物料结壳”进行了认真手研究，并实施了改造。经改造后，降低了生产成本。     

冶炼烟气干法净化制酸工艺

一、前言冶炼烟气干法净化制酸流程渊源于1958年工农业大跃进时期的“土接硫”(即土接触法制酸)。1966年,在南京化工设计研究院的协助下,富春江冶炼厂发展了“土接硫”的工艺,并把它用于铜的冶炼烟气生产硫酸。1968年,在北京有色冶金设计院的参加下,沈阳冶炼厂在富春江冶炼厂初步试验的基础上,建成了12万(标米~3/时)烟量、     

两转两冷湿法制酸工艺在黏胶行业的应用

介绍了奥地利P@P公司设计的两转两冷湿法制酸工艺在黏胶行业的应用,分析了湿法制酸在黏胶行业的经济效益,以及当前系统存在的问题,如静电除雾器和接力风机腐蚀严重、熔盐翅片换热器堵塞、冷凝器集酸槽泄漏等问题。     

大型硫铁矿制酸装置的设计

主要介绍了铜陵有色金属（集团）公司年产80万t硫铁矿制酸装置的设计过程。该装置采用了高效净化洗涤技术、低位高效干吸技术及“3＋1”两次转化工艺。除少部分关键设备采用进口外,其它大部分设备和材料均实现国产化,装置的装备水平达到了国内领先水平。     

Advances in Organolanthanide Chmistry in China

ＡｄｖａｎｃｅｓｉｎＯｒｇａｎｏｌａｎｔｈａｎｉｄｅＣｈｍｉｓｔｒｙｉｎＣｈｉｎａＳｈｅｎＱｉ（沈琪）（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉｓｔｒｙ，ＳｕｚｈｏｕＵｎｉｖｅｒｓｉｔｙ，Ｓｕｚｈｏｕ２１５００６，Ｃｈｉｎａ）Ｒｅｃｅｉｖｅｄ：Ａｐｒｉｌ２...     

风吹石墨在莱钢6m焦炉的应用

针对石墨在焦炉内的生成机理,对莱钢7号、8号焦炉炉墙上的石墨采用压缩空气进行吹扫,有效控制了石墨的生长速度,降低了劳动强度。     

浅谈博茨瓦纳某工程项目管理经验和总结

以博茨瓦纳某地方法院工程为例，简要介绍了在非洲承揽工程项目的管理经验和总结。     

武钢炼焦技术进步

介绍武钢焦化公司50年来炼焦技术进步,重点阐述炼焦配煤技术研究、焦炉热修补维护、140t／h干熄焦技术消化以及7．63m特大型焦炉的技术创新。     

重庆高校推进产学研合作的案例分析

以重庆大学、重庆邮电大学和重庆理工大学为例,剖析重庆高校推进产学研合作的基本模式,已经取得的突出成绩,分析总结其基本经验.从完善政策法规体系、强化经济调控、建立组织机构、加强中介建设及开展国际产学研合作等方面,提出了深入推进重庆高校产学研合作的对策建议.     

Trends in Temperature Extremes in Association with Weather-Intraseasonal Fluctuations in Eastern China

Trends in the frequencies of four temperature extremes (the occurrence of warm days, cold days, warm nights and cold nights) with respect to a modulated annual cycle (MAC), and those associated exclusively with weather-intraseasonal fluctuations (WIF) in eastern China were investigated based on an updated homogenized daily maximum and minimum temperature dataset for 1960-2008. The Ensemble Empirical Mode Decomposition (EEMD) method was used to isolate the WIF, MAC, and longer-term components from the temperature series. The annual, winter and summer occurrences of warm (cold) nights were found to have increased (decreased) significantly almost everywhere, while those of warm (cold) days have increased (decreased) in northern China (north of 40°N). However, the four temperature extremes associated exclusively with WIF for winter have decreased almost everywhere, while those for summer have decreased in the north but increased in the south. These characteristics agree with changes in the amplitude of WIF. In particular, winter WIF of maximum temperature tended to weaken almost everywhere, especially in eastern coastal areas (by 10%-20%); summer WIF tended to intensify in southern China by 10%-20%. It is notable that in northern China, the occurrence of warm days has increased, even where that associated with WIF has decreased significantly. This suggests that the recent increasing frequency of warm extremes is due to a considerable rise in the mean temperature level, which surpasses the effect of the weakening weather fluctuations in northern China.     

Benzimidazole resistance in cyathostomes in horses in the Ukraine

The efficacy of treatment with cambendazole was tested in 1-year-old horses on a farm in Dubrovka, Ukraine. Thirty-five horses were treated. Their egg output was compared on the day of treatment and 14 days later with that of 33 untreated horses. Before treatment the mean number of eggs g-1 faeces was 614 in the controls and 766 in horses that had been treated. After 14 days the mean egg output in the controls was 580 and in the treated horses 369. This means a reduction of 54.5%. Only cyathostome larvae could be cultured from faeces collected after treatment. It can be concluded that benzimidazole resistance in cyathostomes is present in the Ukraine.     

Apoptosis in experimental myocardial infarction in situ and in the perfused heart in vitro

We report the appearance of apoptotic cells in experimental myocardial infarction (rabbit heart) in in situ and in vitro preparations. Apoptosis was recognized by intravital staining with Hoechst 33342 (Ho342), by nick-end labeling (TUNEL) and by DNA laddering. A steady rise in the relative number of apoptotic cardiomyocytes (apoptotic index) was noted in in situ preparations. Apoptosis was first noted 6 h after the onset of ischemia with its highest value occurring after 72 h. Apoptotic nuclei were absent in remote areas of the left and right ventricles. Apoptotic nuclei within the infarcted area showed diminished intensity of Ho342 fluorescence. Three days after ischemia, a border zone adjacent to the infarcted area consisting of apoptotic macrophages was recognized. A novel finding was the appearance of apoptotic cardiomyocytes in the isolated perfused ischemic heart. Occurring as early as 50 min after the onset of ischemia, a high apoptotic index was present adjacent to the ligature placed around the coronary artery. This observation provides the opportunity to selectively examine factors leading to apoptosis in the ischemic heart under controlled experimental conditions.