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I do something similar to this when setting up a refiner to run a cell, I have them digesting their sterling, or better yet their cement silver from replacing electrolyte, and making up a silver nitrate concentrate.

They enter into a spreadsheet custom for their size cell, the assay of the silver they want to digest and the program tells them how much nitric and distilled water to add to make the silver nitrate.

They store this concentrate and when they do the daily Volhard titration, they enter the result into the sheet and it tells them how much of the concentrate to add to bring the cell up to the level they like to operate at. Essentially what Chris is suggesting. I call it the Red Bull method. It does prevent the nitric additions to the cell and the associated re-dissolving of the crystals to raise the silver level.

The larger Italimpianti systems have large nitric holding tanks and a timed circuit which you calculate (based on anode impurities into the cell) an hourly dose of nitric to maintain the silver. I set up a system for a client which had a design capacity of 200,000 ounces a week of fine silver, the unit had 4 separate banks of cells so it had 4 nitric dosing tanks. To make up for the loss of production from the silver digested by the nitric additions, which was quite apparent, I used one of the banks to do the Red Bull method. No modifying of any hardware, just running to a different algorithm. And sure enough, that bank of cells immediately improved its production of fine silver.

<blockquote data-quote="4metals" data-source="post: 273656" data-attributes="member: 6914">I do something similar to this when setting up a refiner to run a cell, I have them digesting their sterling, or better yet their cement silver from replacing electrolyte, and making up a silver nitrate concentrate.&nbsp; They enter into a spreadsheet custom for their size cell, the assay of the silver they want to digest and the program tells them how much nitric and distilled water to add to make the silver nitrate.&nbsp; They store this concentrate and when they do the daily Volhard titration, they enter the result into the sheet and it tells them how much of the concentrate to add to bring the cell up to the level they like to operate at.&nbsp; Essentially what Chris is suggesting.&nbsp; I call it the Red Bull method. It does prevent the nitric additions to the cell and the associated re-dissolving of the crystals to raise the silver level.&nbsp; The larger Italimpianti systems have large nitric holding tanks and a timed circuit which you calculate (based on anode impurities into the cell) an hourly dose of nitric to maintain the silver.&nbsp; I set up a system for a client which had a design capacity of 200,000 ounces a week of fine silver, the unit had 4 separate banks of cells so it had 4 nitric dosing tanks.&nbsp; To make up for the loss of production from the silver digested by the nitric additions, which was quite apparent, I used one of the banks to do the Red Bull method. No modifying of any hardware, just running to a different algorithm.&nbsp; And sure enough, that bank of cells immediately improved its production of fine silver.</blockquote>

[QUOTE="4metals, post: 273656, member: 6914"] I do something similar to this when setting up a refiner to run a cell, I have them digesting their sterling, or better yet their cement silver from replacing electrolyte, and making up a silver nitrate concentrate. They enter into a spreadsheet custom for their size cell, the assay of the silver they want to digest and the program tells them how much nitric and distilled water to add to make the silver nitrate. They store this concentrate and when they do the daily Volhard titration, they enter the result into the sheet and it tells them how much of the concentrate to add to bring the cell up to the level they like to operate at. Essentially what Chris is suggesting. I call it the Red Bull method. It does prevent the nitric additions to the cell and the associated re-dissolving of the crystals to raise the silver level. The larger Italimpianti systems have large nitric holding tanks and a timed circuit which you calculate (based on anode impurities into the cell) an hourly dose of nitric to maintain the silver. I set up a system for a client which had a design capacity of 200,000 ounces a week of fine silver, the unit had 4 separate banks of cells so it had 4 nitric dosing tanks. To make up for the loss of production from the silver digested by the nitric additions, which was quite apparent, I used one of the banks to do the Red Bull method. No modifying of any hardware, just running to a different algorithm. And sure enough, that bank of cells immediately improved its production of fine silver. [/QUOTE]

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