Linde LienHwa China Becomes High-purity Ammonia Supplier for Xiamen-based LED Maker Kaistar

Linde LienHwa (LLH) China , the joint venture led by gases and engineering firm The Linde Group of Munich, Germany and Taiwan’s LienHwa MiTAC Group, has signed an exclusive supply agreement with Xiamen-based LED maker Kaistar to supply bulk gases and high-purity ammonia (NH3).

Kaistar is a joint venture of Epistar and China Electronics Corp (CEC).And its new facility will be constructed near to Linde’s ultra-high-purity ammonia plant in Xiamen (opened in 2010) to meet demand from the fast-growing Chinese LED industry. Using technology for purification, packaging and analytical methodology, the facility is the first operating plant in China to produce ultra-high-purity ammonia.

According to Linde, its ammonia plant guarantees security of supply to Kaistar’s new facility and to other LED makers’ facilities as the growth of the local LED industry continues. The plant, which has an initial capacity of 500 tonnes per year, produces ultra-high-purity ammonia at the 7N (99.99999%) level.

To help reduce the cost of manufacturing and to ensure consistently stable high purity, Kaistar will use Linde’s new SpectraPure high-flow ammonia delivery system, which provides the very high flow rates and cost-effective logistics required for high-volume manufacturing in today’s large fabs, with integral purification helping to improve process consistency and ensuring the highest available purity supply to Kaistar’s facility, Linde says.

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