Method for enriching niobium and titanium in iron-containing niobium-titanium ore and use of nickel-containing substances
A niobium-titanium material technology, applied in the field of enriching niobium-titanium, can solve problems such as complicated procedures, and achieve the effect of improving the enrichment effect
Active Publication Date: 2022-04-22
BAOTOU RES INST OF RARE EARTHS +1
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Problems solved by technology
This method requires two major processes of selective reduction and melting to complete the enrichment of niobium, and the process is relatively complicated.
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Embodiment 1～3
[0090] The main components of iron-containing niobium-titanium are shown in Table 1. The ash content in the semi-coke is 11.8wt%, the volatile content is 15.72wt%, and the fixed carbon content is 71.32wt%. The particle size of semi-coke is between 0.3mm and 3mm (including 0.3mm and 3mm). The iron-containing niobium-titanium, nickel oxide and semi-coke were combined according to figure 1 The method shown is put into the reaction device 1, and the reaction device 1 is a reaction tank; wherein, the upper layer raw material 2 and the lower layer raw material 4 are semi-coke, and the middle layer raw material 3 is a mixture of iron-containing niobium-titanite and nickel oxide. Put the reaction device 1 into a resistance furnace to heat and react.
[0091] After the reaction is finished, the reaction product is cooled with the furnace, and then the product is taken out for cleaning to obtain nickel-iron alloy and niobium-titanium-rich slag, which are well separated.
[0092] The ...
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Abstract
The invention discloses a method for enriching niobium and titanium in iron-containing niobium-titanium ore and the use of a nickel-containing substance. The method of the present invention comprises the steps of: reacting the raw materials comprising 1 weight part of iron-containing niobium-titanite, 0.1-0.8 weight part of nickel-containing substance and 0.2-1 weight part of carbon at 800-1500° C. to obtain ferronickel and niobium respectively Titanium-rich slag; wherein, the nickel-containing substance is selected from one or more of nickel oxide or nickel ore; the amount of iron-containing niobium-titanium ore is calculated as iron element, and the amount of nickel-containing substance is calculated as nickel element. The method of the invention can separate elements such as iron and phosphorus in the iron-containing niobium-titanium ore from the niobium-titanium in one step.
Description
technical field [0001] The invention relates to a method for enriching niobium and titanium in iron-containing niobium-titanium ore and the use of nickel-containing substances. Background technique [0002] Niobium is an important strategic resource in my country. Although my country is rich in niobium resources, second only to Brazil and ranks second in the world, due to its low grade and fine particle size, it has not been able to realize the comprehensive utilization of valuable elements. At present, almost all niobium used in my country depends on imports. my country's niobium resources are mainly distributed in Baiyun Obo in Baotou, Taimei and Limu in Guangxi, Yichun in Jiangxi and Keketuohai in Xinjiang. Among them, Baiyun Obo has the largest reserves of niobium resources, accounting for 95% of my country's niobium resources reserves. Its prospective reserves reach 6.6 million tons and industrial reserves reach 1.57 million tons. [0003] The content of iron-contain...
Claims
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IPC IPC(8): C22B1/02C22B34/12C22B34/24C22C19/03C21B13/00
CPCC22B1/02C22B34/24C22B34/1209C21B13/006C22C19/03Y02P10/20C22B5/10C22B7/04C22B9/14C22C1/00
Inventor 刘玉宝赵二雄张先恒杨鹏飞李园陈国华吕卫东高日增苗旭晨于兵侯复生张全军黄海涛闫奇操张洋康佳董岳阳刘冉郝怡人
Owner BAOTOU RES INST OF RARE EARTHS