Manufacturing Industry
LG Chem develops a new production process for TPAL.(NEW TECHNOLOGY)
China Chemical Reporter, December, 2005
LG Chem, Ltd. announced on November 29th, 2005 that it developed a new environment-friendly process to mass-produce terephthalaldehyde (TPAL).
TPAL is an organic synthesis intermediate for dyestuffs, pharmaceuticals, specialty polymers, electronic materials, and at present it is mostly used to produce fluorescent whitening agents.
The existing TPAL production process involves chlorination of para-xylene and hydrolysis of the chlorinated xylene. The process is harmful to the environment as it uses chlorine as a reactant and emits hydrochloric acid as a by-product. Another problem with the existing process is that it is not cost effective enough to mass-produce. Currently, China and India are major producers.
LG Chem's new manufacturing process...
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