高铁铝土矿直接还原-石灰烧结过程及机理研究 - 中南大学学报（自然科学版、英文版） 关键字: 高铁铝土矿；铁；直接还原；铝铁分离[gap=1523]Key words: ferric bauxite; iron; direct reduction; aluminum-iron separation
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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
degree of direct reduction 直接还原度
shaft furnace direct reduction process 竖炉直接还原法
direct-reduction ironmaking 直接还原炼铁
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。
Till now, direct reduction has been one indispensable part of the world steel production.
目前，直接还原已成为世界钢铁工业不可缺少的组成部分。
The commissioning of Hismelt plant will be a symbol showing that the new-generation direct reduction iron technology is mature in practical appeication.
该厂的建成投产是新一代直接还原炼铁法迈向商业化的重要一步。
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