[Stoves] Upgrading charcoal by washing it

[neiltm at uwclub.net]

On 23 Sep 2016 at 9:30, Anand Karve wrote:

> Dear Neil, 
> the porosity of charcoal comes from the cellular structure
> of the plants and I assume that even after charring the minerals
> remain trapped in the cells. Therefore I felt that soaking charcoal
> in water and washing it might selectively remove the minerals, leaving
> behind carbon of a higher purity. I am conducting experiments on char
> to test this hypothesis. Yours A.D.Karve 

Ah, I see, I thought your concern was primarily with removing a large 
proportion of ash.  I have no idea about the removal of unwanted minerals 
by flushing I'm afraid, but it should be relatively easy to conduct such 
an experiment I imagine.  

Best wishes,   Neil