To eliminate the fumes above the solution we first drained the tank which created pressure, now the scrubber could actually suck out of the reactor. Then we cooled the reactor by running chilled water through the steam jacket, this served 2 purposes, the cooler acid didn't smell as much and the cool acid drops most of its silver so it can be filtered much more effectively.
There was never any strong acid small in the refinery, the room did have a good air turnover though.
The shot was loaded in by tilting the reactor and pouring the shotted material so it slid down the wall. After a few years of doing this we could see where the shot had scratched the shiny surface of the glass along its path but not enough damage to cause concern.
The acid was added with double diaphragm drum pumps, a 316 stainless one for nitric and a composite one for hydrochloric.
The chlorides were pure white and fluffy never trapped any gold, probably because the silver percentage going in was so low.
There was never any strong acid small in the refinery, the room did have a good air turnover though.
The shot was loaded in by tilting the reactor and pouring the shotted material so it slid down the wall. After a few years of doing this we could see where the shot had scratched the shiny surface of the glass along its path but not enough damage to cause concern.
The acid was added with double diaphragm drum pumps, a 316 stainless one for nitric and a composite one for hydrochloric.
The chlorides were pure white and fluffy never trapped any gold, probably because the silver percentage going in was so low.