Use of rare earth element lanthanum (Eu)

Use of rare earth element lanthanum (Eu)

Classification of rare earths

1) Light rare earth (also known as 铈 group): 镧 , 铈, 镨 , 钕 , 钷, 钐 , 铕, 钆 .

2) Heavy rare earth (also known as 钇 group): 铽 , 镝 , 钬 , 铒 , 铥 , 镱 , 镥 , 钪 , 钇.

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 ⅢB periodic table scandium, yttrium, lanthanides 17 elements, commonly represented by R or RE. Their names and chemical symbols are 钪 (Sc), 钇 (Y), 镧 (La), 铈 (Ce), 镨 (Pr), 钕 (Nd), 钷 (Pm), 钐 (Sm), 铕 (Eu ), Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu. Their atomic numbers are 21 (Sc), 39 (Y), 57 (La) to 71 (Lu).

铕 (Eu) In 1901, Eugene-Antole Demarcay discovered a new element from the 钐, named Europium.

é“• (Eu) application

Most of cerium oxide is used in phosphors. Eu 3 + is used as an activator for red phosphors and Eu 2 + is used for blue phosphors. Now Y 2 O 2 S: Eu 3 + is the best phosphor for luminous efficiency, coating stability, and recovery cost. In addition, improvements in technologies such as improved luminous efficiency and contrast are being widely used. In recent years, cerium oxide has also been used in stimulated emission phosphors of new X-ray medical diagnostic systems. Cerium oxide can also be used to make colored lenses and optical filters for use in magnetic bubble storage devices, and can also be used in control materials, screen materials and structural materials for atomic reactors.

Color phosphors are yttrium activated yttrium oxide

Next generation white light led with red luminescent eu(III) phosphor

Yttrium oxide

Rolling Movement Mixer

EYH two-dimensional movement mixer is mainly composed of three parts such as the drum, oscillating frame and machine frame. The drum is installed on the oscillating frame, supported by four rollers and positioned axially by two catch wheels. In the four supporting rollers, the two driving wheels are pulled by the rotation power system to make the drum turn. The oscillating frame is driven by a group of crank rocker mechanism, which is installed on the machine frame. The oscillating frame is supported on the machine frame by the bearing assembly.

Features:

The drum of the EYH two-dimensional movement mixer can carry out two movements simultaneously: one is the rotation of the drum and the other is the oscillation of the drum along with the oscillating frame. While the materials to be mixed carry out rotation, turning and mixing along with the drum, they also make reciprocating mixing movement along with the oscillation of the drum. Under joint action of the two movements, the materials are sufficiently mixed within a short time. The EYH two-dimensional movement mixer is suitable for mixing all powder and granular materials.

Drawing:

Rolling Movement Mixer,Movement Mixer Rolling,Dimensional Movement Mixer,Two Dimensional Blender Mixer

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