ISSN (Print) - 0012-9976 | ISSN (Online) - 2349-8846

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Sen-Raleigh Limited

of Shriram Fertilisers and Chemicals has contributed an interesting and very useful paper on "Hydrochloric Acid Process for Manufacture of Phosphoric Acid", in the March 1967 issue of the Indian Chemical Manufacturer. He has described the process in outline and has shown that phosphoric acid of 80-95 per cent purity (58-69 per cent P2 Os) can be produced by using hydrochloric acid instead of sulphuric acid, and the comparison of cost per ton of P 2 O 5 in phosphoric acid shown that the HCl-based process is cheaper than the H2SO-rbaed process.

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