The day before, the world's first rare earth sulfide colorant to Research Institute of Applied Chemistry Changchun Chinese core technology based on continuous tunnel kiln production line, built in Baotou Rare Earth Research Center Chinese Academy of Sciences, and realize the first breakthrough in the original product line, rare earth high value-added downstream application domain implementation again.

Non-toxic harmless, large market demand

Reporters learned that the properties of rare earth sulfide coloring coloring is excellent, non-toxic, and used in plastics, plastic, paint, ink, leather and other fields widely, market demand is expected to reach ten billion yuan.

The State encourages the development of alternative raw materials

Due to the use of alternative organic pigments and containing cadmium and lead heavy metal pigments cannot meet the requirements of environmental protection of the colorant, rare earth colorant was included in the jointly issued by the Ministry of science and technology ministry and the Ministry of environmental protection in 2016, "the State encourages the development of poisonous and harmful material products substitute list". The traditional synthesis of rare earth sulfide colorant is in the tube furnace with hydrogen sulfide as curing agent in high temperature, complex process, damage degree, high cost, not mass production, which greatly limits the application of rare earth sulfide colorant.

Using backlog materials to make raw materials

Chinese Jilin, Zick APP reporter also learned that the technology developed under mild conditions of rare earth sulfide colorant preparation method, do not use hydrogen sulfide and other dangerous gases, high yield, simple operation, safe and reliable. The products use North inventory high abundance of rare earth lanthanum and cerium serious as raw materials, rare earth resources and meet the national balance of the major alternative to toxic and hazardous products demand for high value-added rare earth new material application is of great significance to the market will have a greater economic and social benefits.

First product line

It is reported that the State Key Laboratory of team cooperation with the Baotou Academy of Sciences China center by rare earth Changchun applied chemistry research by academician Zhang Hongjie and Professor Li Chengyu led the rare earth resources, to Changchun should where rare earth sulfide preparation of three core technology patents as the basis, to carry out experiment of 10 tons in Baotou. After nearly a year of equipment design and process selection, in the end of 2016 to achieve the first product off the assembly line.