文章详细信息 关键词： 铬矿;;含碳球团;;直接还原 [gap=554]Keywords: chromium ore, pellet containing carbon, direct-reduction
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direct reduction [冶] 直接还原 ; 直接归约 ; 直接缩减
direct reduction pellets 直接还原用球团矿
direct reduction in shaft furnace 竖炉直接炼铁
direct reduction unit 直接还原装置
direct reduction mortgage 直接递减抵押
direct-reduction process [冶] 直接还原法
The activity of catalyst was higher when the direct reduction method was used than the calcination-reduction method. The optimized preparation conditions of catalysts are as follows: calcination temperature 450℃~500℃,reduction temperature 400℃,reduction time 6 hours.
结果表明:氧化镍最佳负载量为25%～30%之间;以硝酸镍为前驱体的镍基催化剂苯加氢活性最高;催化剂采取直接还原活化的方式具有更高的苯加氢活性;焙烧温度450～500℃,还原温度400℃,还原时间6小时催化剂的苯加氢活性最高。
参考来源 - 镍基催化剂的苯加氢性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
"We will not be able to talk direct reduction targets of the kind which developed countries are obliged to take," he told reporters.
我们不可能谈论发达国家有义务实现的那种直接减排的目标。
One key factor of direct reduction of cold bond pellets is the choice of shaped binder.
冷固结球团直接还原工艺成功的关键因素之一是成型粘结剂的选用。
The experiment showed that the new direct reduction technology had such advantages as short flow, small investment, high efficiency and low power consumption.
试验表明：冷固结球团矿直接还原新工艺具有工艺流程短、基建投资省、生产效率高、能源消耗少等特点。
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