Classification of rare earths
1) Light rare earth (also known as 铈 group): 镧 , 铈, 镨 , é’• , é’·, é’ , é“• , é’† .
2) Heavy rare earth (also known as é’‡ group): 铽 , é• , é’¬ , é“’ , é“¥ , 镱 , é•¥ , é’ª , é’‡.
The difference between the 铈 group and the 钇 group is because the rare earth mixture obtained by separation of minerals is often named after the ratio of lanthanum or cerium.
Rare earth metals (rare earth metals), also known as a rare earth element, is a general term for a group â…¢B periodic table scandium, yttrium, lanthanides 17 elements, commonly represented by R or RE. Their names and chemical symbols are é’ª (Sc), é’‡ (Y), 镧 (La), 铈 (Ce), 镨 (Pr), é’• (Nd), é’· (Pm), é’ (Sm), é“• (Eu ), Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu. Their atomic numbers are 21 (Sc), 39 (Y), 57 (La) to 71 (Lu).
é’(Sm)
In 1879, Beuys package Dresser discovered a new rare earth element yttrium niobium ore from the resulting "praseodymium neodymium", the samarium and named based on the name of this ore.
Samarium pale yellow, raw material is samarium cobalt permanent magnets, the first magnet is a samarium cobalt rare earth magnets obtained in industrial applications. Such permanent magnets are of the SmCo 5 type and the Sm 2 Co 17 type . In the early 1970s, the SmCo 5 series was invented, and the Sm 2 Co 17 series was invented later. Now it is based on the needs of the latter. The purity of cerium oxide used in samarium-cobalt magnets does not need to be too high, and from the viewpoint of cost, about 95% of products are mainly used. In addition, yttrium oxide is also used in ceramic capacitors and catalysts. In addition, niobium also has a nuclear nature, which can be used as a structural material for atomic energy reactors, screen materials and control materials to make nuclear fission generate huge energy for safe use.
Metal enamel
Yttrium oxide
Barium nitrate
Samarium cobalt magnet
fruit elevator
Low-level hoist for fruit cleaning and high-level hoist for fruit picking and transport to crushing station.
fruit washing machine
It is used for the cleaning and preliminary selection of ordinary fruits and the cleaning of melons and fruits with high cleaning degree such as carrots.
Crusher
Hammer crusher and squirrel cage crusher are used for primary crushing of fruits and vegetables.
Preheat enzyme inactivator
It is used to pasteurize and inactivate enzymes in time for the crushed materials to protect the color and soften the materials.
beater
It is used to make juice or sauce for tomato, strawberry, raspberry, mango, peach, apricot, kiwi and other berries or pre-cooked stone fruit.
Juicer
Screw juicer and belt juicer are suitable for juicing apples, pears and other pome fruits.
vacuum concentrator
Rising film, falling film juice concentration pot series, forced external circulation jam concentration equipment series.
Casing type sterilizer
Using steam, hot water and cold water as heat transfer medium, it is especially suitable for sterilization of medium and low viscosity materials.
Fruits Processing Line,Citrus Processing Line,Avocado Processing Line,Apple Chips Production Line
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