By Navin G. Ashar, Kiran R. Golwalkar
This serious quantity offers sensible insights on sulfuric acid and comparable plant layout and on thoughts to enhance and increase considerably the potency of an current plant by way of small adjustments. The booklet offers readers with a greater knowing of the state-of-art in sulfuric acid manufacture in addition to, importantly, within the manufacture of value-added items according to sulfur which are additionally linked to the manufacture of sulfuric acid. total, engineers and plant managers might be brought to applied sciences for making their sulfuric acid organisations extra effective, remunerative, and environmentally pleasant. A functional advisor to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents covers sulfuric acid and spinoff chemical plant information from the nuts-and-bolts point to a holistic viewpoint in response to real box adventure. The booklet is critical to an individual occupied with enforcing a sulfuric acid or comparable chemical plant.
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Additional resources for A Practical Guide to the Manufacture of Sulfuric Acid, Oleums, and Sulfonating Agents
Since the solubility of HCl in CSA is very low, the product is of high grade. The advantage of this process is that it is carried out at atmospheric pressure and all the equipment is in Mild Steel (MS) construction and corrosion is minimum due to lower temperatures. A large plant of up to 200 TPD capacity is feasible with this process. It may be of interest to the reader that India is today producing the maximum output of chloro sulphonic acid in the world. 2 Detailed Account of Sulfonating Agents 41 In India the first commercial production started with a 100 TPY plant in the early 1960s.
The vapors are condensed and the product DMS is transferred to day tanks wherein the quality is checked and sent to storage by gravity. The product is then filled into drums for dispatch to the consumers. It is important to note that DMS is a very poisonous chemical and has a threshold limit value (TLV) of 1 ppm. The manufacturing process (though seemingly very simple) requires expertise and knowledge of handling DMS, especially during unforeseen breakdowns. In India there are two major manufacturers of DMS producing about 80–100 TPD.
The unreacted HCl gas is sent to a scrubber which produces a large quantity of liquid effluent. Due to maintaining the temperature of reaction close to the boiling point of chloro, it is claimed that the product has a purity of 99 %. The entire system is under pressure. The limitation of this process is that the HCl and SO3 gases are required to be fed at high temperature of about 90–100 °C. Another limitation of this process is that this cannot take gases directly from electrolytic cells producing HCl gas due to the danger of explosion (since a mixture of hydrogen and oxygen is formed after HCl is absorbed).