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| History |
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Rare Earth Element Developing Stage (1958-1970)
Rare earth ore decomposition, chemical separation,
ion-exchanged separation, solvent-extracted separation,
chlorination and molten salt electrolysis, preparation
of individual rare earth metals and alloys, and related
basic theories were comprehensively studied. 16
individual rare earth oxides and individual rare earth metals were
successfully produced, and the complete technical
reports were prepared in details. Historic contributions
to the foundation of the rare earth industry in China had
been made, and many national prizes were obtained.
*Industrialization Stage of the Rare Earth Techniques (1971-1990)
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The integrated
applications of the rare earth resources in Baotou were mainly
investigated. The first-, second- and third-generation
methods of sulphatizing calcination for producing rare earth chlorides
from Baotou rare earth concentrates had been invented. The separation
techniques for individual rare earth and those for the Southern
ionized rare earth ores were successfully developed. These complete
techniques had been transferred to Gansu Rare Earth Company, Baotou
Rare Earth Metallurgical Plant, 202 Plant, Nongnan Rare Earth Plant, Jiangxi
806 Plant etc. First in China, SmCo permanent magnets,
trichromatic phosphors and rare earth polish powders were successfully
developed, and the commercial productions were fulfilled
in enterprises such as the Shanghai Yuelou Chemical Plant
etc. The precedent of the research of rare earth for agricultural
use in China was initiated, series of advanced techniques
were developed, and distinct benefits were achieved from
the spread of the patented techniques and the Changle
products through the united organization of several enterprises.
Lots of RE specialists were sent to many places for supporting
the establishment of the RE research bases such as Baotou
RE Institute, Guangzhou Research Institute for Nonferrous
Metals etc. Great contributions had been made to the development
of the RE industry in China, and the National Advanced
Group for the Spread of the RE Application was awarded
to our Institute.
* Industrialization Stage of the Advanced RE Function
Materials (1991-)
CREM has courageously been taking up the historic mission
to transfer the primary products to those with high additive
values. CREM has made great efforts to develop advanced
RE materials, and to improve the progress of the RE applications.
Five production lines has already been built up: RE metals
and alloys, RE magnetic aterials, RE luminescent materials,
RE fine chemical materials and RE materials for agriculture
development. PDP-used phosphors, giant magneto-strictive
materials, magneto-optical materials, catalytic and environmental
materials, long afterglow materials, biological materials
and other advanced RE function materials are being developed.
Through technical innovation, system innovation and management
innovation, and with the help of the social resources
such as the capital market etc, jumping development is
hoped to be fulfilled, and the hi-tech enterprise with
quite international influence is hoped to be established.
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