SHT finds application in pharmaceutical industry as an antacid. SHT has also replaced heavy metal based heat stabilizers for PVC. SHT like compounds are imported under the trade name like DHT-4A, L-55R-II and Alcamizer. They are used as halogen scavenger in plastic processes such as the production of polypropylene. Other applications include base or Support catalysts, adsorbent for wastewater treatment, ion exchangers, drug releasers, anticorrosive materials as well as a wide range of environmental applications. The global demand of synthetic hydrotalcite is more than 75000 tons. Its demand is expected to grow further by 2020 to replace lead stabilizer due to regulatory norms in developed countries. In India most of the material( SHT) is being imported hitherto.
Central Salt & Marine Chemicals Research Institute (CSMCRI)
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