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  1. DASHENG4551

    Ventilation rate, H-release, batch reactor w/ 32% HCI +H2o at 150F, precious metal recovery

    All vapors are exhausted to a wet fume scrubber before discharging to atmosphere. The exhaust fan motors are external, belt driven. Where motors are in the airstream they are explosion proof. the VFDs are external to the Process Production/Reactor(s) room. Once startup is initiated the...
  2. DASHENG4551

    Ventilation rate, H-release, batch reactor w/ 32% HCI +H2o at 150F, precious metal recovery

    The exhaust vapors are conveyed to a wet fume scrubber. No burn offs. The recoverable precious metal mass is a propriety "Client" information. There are other chemicals added to the Batch Reactor(s) to facilitate the precipitation and deposition process. These "other" chemicals are unknown...
  3. DASHENG4551

    Ventilation rate, H-release, batch reactor w/ 32% HCI +H2o at 150F, precious metal recovery

    Thank you for your questions and thoughts. There are at least 30 reactors. The reactors are manufactured of stainless steel I do not know the exact type, e.g., 304, 316, etc. The precious metals are gold, silver. I make-up of the 800 gallon mix is 256 gallons of HCI and 544 gallons H20 of city...
  4. DASHENG4551

    Ventilation rate, H-release, batch reactor w/ 32% HCI +H2o at 150F, precious metal recovery

    A heated 800 gallon batch reactor contains HCI at 32% concentration and city water, receives precious metals waste. The HCI oxygenates the process to precipitate the precious metals. Hydrogen is released into the headspace. the batch reactor diameter is 72 inches headspace is 28 cu.ft. The...
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