Customizable FootprintThe footprint of our Sulfuric Acid Recovery System takes many shapes, depending upon the system size and our customer's available space. The system can be rectangular (as in the picture above) or the framework can be L-shaped. Substituting a ladder for a stairway to get to tank height saves money and a few feet of valuable space. Low Temp DesignView our Low Temperature Design for plants which require an unusually low level of iron in the pickle tank -- 50 to 60 grams/liter. Our conventional sulfuric acid recovery system maintains iron levels at 75 to 95 grams/liter. 
Pickling sulfuric acid is drawn from the tank by means of a chemical pump and fed through a Pre-filter to remove gross particles. The sulfuric acid solution then enters the Primary Exchanger where the temperature is reduced by chilled acid traveling counter-currently through the exchanger (returning from the end of the process). Digital temperature indicators display the temperatures of the solution entering and exiting the Exchanger. The pre-chilled spent sulfuric acid then enters the Reactor where the acid is blended with the chilled acids circulating through the process. Our new design features an external chilling loop that uses a centrifugal pump to force the spent sulfuric acid through a specially designed carbon graphite heat exchanger and return the superchilled sulfuric acid solution to the reactor. The pump maintains a violent and thorough agitation to minimize formation of crystals on the surface of the exchanger. A controlled portion of the returning superchilled spent sulfuric acid solution is diverted to the Crystal Settler. This slurry of superchilled sulfuric acid and crystals is directed through a thickening tube that sends the crystals to the conical section of the vessel while the clarate (solution without iron crystals) rises to the top of the tank. The overflow port allows the clarate to return to the pump back station where it is pumped through the Primary Exchanger and back to the pickling tank as recovered sulfuric acid. The chilled sulfuric acid is heated by the hot acid coming in from the process tank and uses its own thermal energy to cool the hot acid coming in. In this manner up to 400,000 B.T.U.s can be utilized in each direction, significantly reducing the operating cost of the system and the cost of re-heating the process sulfuric acid. 
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 1 Cell Collection Brochure 2 Cell Collection Brochure 3 Cell Collection Brochure Low Temperature Brochure |
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