lanthanum cerium (la/ce) metal alloy
1、 Definition and Properties
Lanthanum cerium metal alloy is a mixed oxide alloy product, mainly composed of lanthanum and cerium, and belongs to the rare earth metal category. They belong to the IIIB and IIB families respectively in the periodic table. Lanthanum cerium metal alloy have relatively active chemical properties and good processing and physical properties. Widely used in nuclear industry, medicine, electronics, lighting, steel and other fields.
2、 Refining and Production
1)The extraction methods of lanthanum cerium metal mainly include:
(1) Ion exchange method: adsorb rare earth elements through ion exchange resin, and then wash, separate, concentrate, and purify them to obtain products;
(2) Solvent extraction method: using different solvents to extract rare earth elements with different abilities, achieving element separation;
(3) Electrolysis method: Adding rare earth containing raw materials to an electrolytic cell to obtain metal or oxide products through electrolysis.
2)Production process: The production process may vary depending on the specific extraction method and raw materials used. This generally includes steps such as raw material preparation, roasting, leaching, separation and purification, and product preparation.
3、 Specification and form, appearance and index
(1),Specifications: The specifications of lanthanum cerium metal and its products vary depending on the application field and production process. Common specifications include metal blocks, metal powders, alloys, etc. Conventional 50kg/block or cut according to customer requirements.
(2),Form: The form varies depending on the production process, including granular, rod-shaped, linear, etc.
(3),Appearance: lanthanum cerium metal alloy is in block shape, with a silver gray new fracture surface.
(4) Index:
|
Test Item |
Standard |
Result |
|
Re |
≥99% |
99.68% |
|
Ce |
≥62% |
64.76% |
|
La |
≥33% |
34.85% |
|
Sm |
≤0.1% |
0.06% |
|
Mg |
≤0.1% |
0.05% |
|
Zn |
≤0.05% |
0.02% |
|
Fe |
≤0.2% |
0.03% |
|
Si |
≤0.05% |
0.02% |
|
W+Mo |
≤0.035% |
0.01% |
|
Ca |
≤0.02% |
0.012% |
|
C |
≤0.02% |
0.01% |
|
Pb |
≤0.02% |
0.008% |
|
Storage |
Room temperature with sealed well |
|
|
Conclusion |
Comply with the standard of GB/T 4153-2008 |
|
4、 Reserves and Distribution
(1) Reserves: The global reserves of lanthanum cerium metals alloy are abundant, mainly distributed in rare earth resource bases in China.
(2). Distribution: In addition to China, lanthanum cerium metals alloy are also distributed in countries such as Mongolia, the United States, and Australia.
5、 Price and Market
(1). Price: The price of lanthanum cerium metal alloy is influenced by market supply and demand, production costs, and other factors, resulting in significant price fluctuations.
(2). Market: The global market for lanthanum cerium metals alloy is mainly concentrated in China, which is the world’s largest producer and exporter of rare earths.
6、 Preparation methods and processes
(1). Preparation methods: The main methods for preparing lanthanum cerium metals alloy include chemical synthesis and physical methods. The chemical synthesis method is to prepare rare earth compounds through chemical reactions, and then obtain metals through high-temperature smelting; The physical laws include electrolysis, regional melting, and so on.
(2). Process flow: The process flow may vary depending on the selected preparation method. This generally includes steps such as raw material preparation, smelting, purification, and molding.
7、 Application Fields and Development Trends
(1). Application areas: Lanthanum cerium metal alloy is widely used in both high-tech and traditional industrial fields, such as catalytic cracking catalysts
Hydrogen storage materials, luminescent materials, etc. Used as a grain refining agent, steel additive, desulfurizer, deoxidizer, etc
With the continuous progress of technology, the application fields of lanthanum cerium metal alloy will continue to expand.
(2). Development trend: With the increasing awareness of environmental protection and the continuous progress of technology, the production process of lanthanum cerium metal will be more environmentally friendly and efficient; Meanwhile, with the continuous emergence of new materials, the application fields of lanthanum cerium metal will also continue to expand.
8、 Safety precautions for the use of lanthanum cerium metal
(1). Avoid contact with skin and eyes: When using and operating lanthanum cerium metal alloy, avoid contact with skin and eyes. If accidentally touched, rinse immediately with plenty of water and seek medical attention promptly.
(2). Prevent ignition sources: Lanthanum cerium metal alloy has flammable and explosive properties, so it should be kept away from open flames and electrostatic fields during use and operation. If a fire occurs, appropriate fire extinguishing measures should be taken immediately.
(3). Avoid contact with water and oxidants: Lanthanum cerium metal alloy can react chemically with water to produce hydrogen gas, which may cause explosions. Meanwhile, during storage and operation, keep away from oxidants.
(4). The storage method should be correct: Lanthanum cerium metal alloy should be stored in a dry, well ventilated place, away from fire sources and other flammable materials, and easily oxidized places. The storage environment temperature should be controlled between 5 ℃ and 30 ℃.
(5). Avoid confusion and cross contamination: Mixing lanthanum cerium metal alloy with other metals or being contaminated by other metals can affect its performance and quality. Therefore, it is important to avoid confusion and cross contamination during operation and storage.
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