3V TECH provides the optimized solution for your calcium chloride plant. Conventionally the process starts with reaction between hydrochloric acid and crushed limestone of higher purity to provide 36% liquid solution. Solution may be further evaporated and dried either as flakes or granulate.
Calcium Chloride is frequently used as oil and gas drilling fluid, de-icing chemicals, road dedusting materials, as food additive (high purity) and paper additive (without colorants). Calcium Chloride Plants frequently converts excessive HCl of chlor-alkali plants to a high purity Calcium Chloride. Ultimate advantage is a long shelf storage time for chlorine. Potassium Production by Mannheim Process has the same motivation for excess of HCl produced.Other sources of weaker Calcium Chloride brine are Soda Ash Production (Solway Process) or processing of Phosphate Rocks typically providing a weak brine with NaCl and CaCl2 content in a range 10-20%. Environmental sources of Calcium Chloride are produced waters from oil and gas extraction, or leachates with high content of Calcium Chloride. The global market is around 1.3 billion €.
Reaction and Neutralization Plant Producing 36% Liquid Calcium Chloride Solution includes reaction and neutralization of excessive hydrochloric acid to react with limestone to produce 36 % calcium chloride solution which can be chemically treated for heavy metals and magnesium.
Evaporation and Selective Crystallization Plant. For less concentrated salty brines with significant content of Calcium Chloride (as a rule more than 10% TDS may be considered as significantly enriched water) one can use evaporative crystallization to recover variously soluble salts from Calcium Chloride concentrate of 36% (typical recoverable KCl, NaCl).
Flakes Plant at around 75-78% Calcium Chloride. The solution is concentrated to very high concentration and send to flaker. Flakes are dried on surface, screened and bagged as per clients request.
Granulate or Prilling Plant producing 94-97% Calcium Chloride. Solution is concentrated and then spray atomized into granulator or prilling tower to form nearly anhydrous aggregates of typical size 1-4mm. performed in isolated rector and chlorination can be done in dedicated standalone reactor allowing substantial elimination of NaCl from production of calcium hypochlorite
Calcium Hypochlorite plant is composed of the following sections:
Main auxiliaries needed that we normally do not include:
utilities such as steam, cooling water, chilled water, natural gas, instrumentation air, storage tanks, civil works, local environmental permission, sewage system and sludge handling
Calcium Chloride Plant is frequently integral part of chloralkali plants as ultimate shelf storage of produced chlorineDepleted Brine Circuit of Chloralkali Plant to take back high purity NaCl recovered from Calcium Chloride concentrate
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