Globally, seawater has been recognized as a potential source of varieties of marine chemicals. More than 70% of salt produced in India (about 20 million t/y) is from seawater & the resultant mother liquor (commonly known as sea bittern) left after harvesting of salt, contains significant amount of potassium (about 1%) and magnesium (about 3.5%).
This assumes significance in view of India's import dependence for (i) potassic fertilisers (ii) high purity magnesium oxide (>97%; CC) suitable for refractory application& (iii) magnesium metal.
Annually, India imports about 4 million tons potash (e.g., 3.76 million tMoP in 2019-20at an expense of ₹ 8366 crores).
Similarly, India imported about 20000 tons refractory grade magnesium oxide in 2019-20 at an expense of ₹140 crores. Likewise, presently India imports magnesium and their alloys, especially from China, for strategic and defence needs.
This is a huge burden on the Indian economy where as the domestic technologies developed in different CSIR laboratories can be of great help to reduce the import substitution.
Considering the potentials of these sector and to explore the future possibilities, Indian Chamber of Commerce(ICC) is please to organize an E-Conference on Marine Chemicals Conclave ( Marine Chemicals Industry Meet) on 20th April in association with CSIR-CSMCRI from 2 PM to 5 PM in virtual platform.