Development of downstream products for hydrochloric acid
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A client in the Middle East plans to install 25 sets of potassium sulfate production equipment, but is facing difficulties with the by-product HCL. The following options are available: 1. Using HCL and phosphate rock to produce light calcium, with the by-product calcium hydroxide being used to produce calcium chloride ； 2.HCL reacts directly with calcium carbonate to produce calcium chloride ； 3. Reaction of HCL gas with acetylene to produce PVC (high investment required) ； 4. Production of chlorosulfonic acid from HCl and sulfuric acid ； 5. HCL and bauxite are used to produce water purifiers. The area is rich in local potassium salts, phosphate ores, and sulfur resources, but lacks other supporting facilities. I would like to ask fellow users: Which design institute is better for chlorosulfonic acid and polyaluminum chloride projects? Thank you!
Hydrochloric acid treatment should be considered an environmentally friendly process; there are no issues in China, as the product can be used locally and sold there. However, it’s more difficult abroad due to insufficient supporting infrastructure.
There is a lot of pollution, and it’s also very dangerous. Let’s carry out some green environmental protection projects
The key issue lies in the by-products of upstream products; for example, when producing potassium sulfate or chlor-alkali, large amounts of hydrochloric acid are generated, which must be dealt with
PVC is also not an option now; we are considering the purification of hydrochloric acid, or whether it’s possible to obtain hydrochloric acid of food-grade quality
Hydrochloric acid can be decomposed, yielding hydrogen chloride gas, which has many uses.