还原焙烧

新工艺核心为弱还原焙烧脱锡、锌和砷，以及强还原焙烧制备金属化球团（DRI）。

The cores of the new technology were selective separation of tin , zinc and arsenic by weak reduction roasting , and preparation of metallic pellets ( DRI ) by strong reduction roasting .

本实验采用还原焙烧、硫酸浸取、催化氧化聚合的工艺制取聚合硫酸铁，确定了各个阶段的最佳工艺条件，并对制取的PFS进行了产品质量检验和水处理效果实验，取得了良好效果。

The whole experiment process was divided into three parts - reduction roasting pyrite cinder , vitriol lixiviation and catalytic-oxidation polymerization , the optimum condition was defined in every part , and the production quality and flocculation performance were tested , good results were gained .

砷华生产废渣中Fe质量分数达45.6%，氧化焙烧脱硫后，可采用还原焙烧-磁选方法回收其中的铁。

Fe_3O_4 was recovered from cinder of arsenic-production by reduction roasting and subsequent magnetic separation after being desulfurized by oxidation roasting .

采用还原焙烧分选法，从湿法炼锌的浸锌渣中富集回收有价元素Ga、Ge、Ag等。

Comprehensive recovery of valuable elements such as Ga , Ge , Ag , etc. from zinc leaching residues has been studied by means of reducing roasting followed by magnetic separation .

本文叙述了包头铁矿石经还原焙烧后磁选尾矿中稀土矿物，用氟硅酸及其盐类作活化剂，在适当的矿浆pH值及矿浆浓度下，可以顺利地进行浮选回收，获得的结果较为满意。

Rare-earth minerals in railings obtained after the reduction roast and magnetic separation of Bao tou iron ores can be floated successfully using fluorosilicic acid and fluorosilicates as activating agent at the appropriate pH value and pulp concentration . And satisfactory results can be obtained .

磁化还原焙烧工艺处理贫锰铁矿的研究

Research of Magnetic Reduction Roasting of Low Grade Ferromanganese Ore

用还原焙烧法从硫铁矿烧渣中提取铁的研究

Investigation of extracting iron from pyrite cinder by reductive roasting

锌焙砂还原焙烧工艺的试验研究

Test and Research on Reduction Roasting Process of Zinc Calcine

低品位氧化铜矿还原焙烧-氨浸试验研究

The Study of Reduction Roasting-Ammonia Leaching of a Low Grade Copper Oxide Ore

该技术的关键有：还原焙烧、水淬、酸浸。

The key technology consists of reduction roasting , shrend and acid leaching .

选择性还原焙烧&氨浸自红土矿中提镍时硫的行为

Behaviour of sulphur during selective reduction Roasting-Ammonia leaching process for extracting nickel from laterites

张家口地区鲕状赤铁矿还原焙烧-弱磁选试验研究

Test research on roasting-low intensity magnetic separation of oolitic hematite ore in Zhangjiakou area

含锡铁精矿还原焙烧脱锡试验研究

Investigation on removal of tin from Sn - bearing iron concentrates by reduction roasting

硫酸渣复合球团还原焙烧法制备高品位磁铁精矿

Magnetic-separation Preparation of high quality magnetite concentrate from pyrite cinder by composite pellet reduction-roasting and

回转窑预还原焙烧红土矿工艺模拟研究

A simulation study on the pre-reduction and calcination process of laterite ore in rotary kiln

研究了高温还原焙烧、硫酸浸取提取硫铁矿烧渣中的铁。

The extracting iron from pyrite cinder by reductive roasting and sulfuric acid leaching was investigated .

綦江式赤菱混合矿粉矿造球还原焙烧磁选试验研究

Pelletization , Reducing Roast and Magnetic Separation Tests of Mixture Fine Ore of Qijiang-type Hematite and Siderite

采用还原焙烧工艺对内蒙黄岗高锡铁精矿的处理进行了研究，考察了主要工艺参数对脱锡效果的影响。

Experimental research on the treatment of Sn-bearing iron concentrates for tin removal were performed by reductive roasting .

研究了浸锌渣还原焙烧分选综合回收有价元素的工艺。

Comprehensive recovery of valuable elements from zinc leaching residues is study by reducing roast followed by magnetic separation .

还原焙烧工艺是处理高锡、锌铁精矿行之有效的方法。

Reductive roasting is an effective solution to treating the iron concentrate with high contents of Sn and Zn .

文摘：锌焙砂含有少量难溶的铁酸锌，通过还原焙烧可以降低铁酸锌含量。

Abstract : Zinc calcine contains a small amount of refractory zinc ferrite that can be reduced by reduction roasting .

还原焙烧－氨浸法处理松桃高磷锰矿石的试验

An experiment to treat Song Tao high phosphorus manganese ore by tne process of reduction roasting and leaching with ammonia

该工艺由两部分构成：第一步，采用还原焙烧&磁选工艺从渣中分离有价元素；

It includes two parts : one is separation valuable elements from residue by the process of reducing roast followed by magnetic separation ;

本文着重从热力学和动力学上对广西三水铝土矿拜尔法赤泥还原焙烧机理进行分析和探讨。

The reducing-roasting mechanism of Bayer red mud of Guanxi gibbsite bauxite have been analysed and studied mainly based on thermodynamics and dynamics in this paper .

本文用合成样品对氧化矿还原焙烧过程中铁钻化合物物相变化进行了考察。

Synthetic samples were prepared and studied to simulate the phase changes of iron cobalt compounds in the reduction roasting ammoniacal leaching processing of oxidized ore .

东鞍山烧结厂含菱铁矿浮选中矿经700℃还原焙烧&磁选工艺处理，可以得到品位为60.43%，回收率为83.59%的铁精矿。

Through roasting-magnetic separation technology to treat flotation middling containing siderite at700 ℃, an iron concentrate with Fe grade of60.43 % and Fe recovery of83.59 % was obtained .

浸锌渣通过成型、固结、还原焙烧、磁选，高效地实现了锌、铁、镓、锗和银的富集回收。

The enrichment and recovery of Zn , Fe , Ga , Ge , Ag have been realized by cold-bonded briquette pellet direct reduction technique from Zinc-leaching residues .

在规模为84吨/日的工业试验中，成功地应用了高效的两段沸腾炉作还原焙烧；

In a series of commercial experiments for a scale of 84 T / day , a high efficiency two-stage fluidized bed roaster was successfully used for reduction roasting ;

通过对攀钢高炉粉尘利用的分析研究，提出了采用含碳球团直接还原焙烧法处理高炉瓦斯泥的工艺。

By analyzing and researching utilization of BF dust , a technology of dealing with the BF gas slime adopting the containing carbon pellet direct roasting reduction method was put forward .

包头矿稀土催化剂焙烧反应动力学研究从包头铁矿石还原焙烧磁选尾矿中浮选回收稀土矿物

Study on Decomposition Mechanism of Rare Earth Catalyst from Baotou Rare Earth Concentrate RECOVERY OF RARE-EARTH MINERALS FROM TAILINGS OBTAINED AFTER THE REDUCTION ROAST AND MAGNETIC SEPARATION OF BAO TOU IRON ORES