How to process aluminum ducting in fume hood

[autumnwillow]

Well, I was a total newbie back then so I used aluminum, it now has holes and no longer usable.
I'll be replacing it with polypropylene ducting this time. It lasted about 3 years. I use a vacuum scrubbing for all my reactions so what attacked the aluminum is probably the acid fumes that got away (eg while filling the reaction flask).

Now, I wonder are there any values here?
If I process it, I assume that I would just dissolve it in hcl, wash the solids then process in AR.
Or should I just throw this away?

 

[Geo]

How much weight? HCl or sodium hydroxide will dissolve aluminum.

 

[autumnwillow]

I think its about 3-4kgs.

Hmm its weird though, from what I know this is an aluminum ducting, upon dismantling it, its plastic with some metal support around it.

There were a lot of accumulated dusts inside. I assume this could be gold or silver since this same duct is also connected to my melting area.

 

[FrugalRefiner]

Can you post a picture of the ducting? It may help you get more suggestions.

For help on posting pics, see Attaching Images or Files, Working with Attachments.

Dave

 

[nickvc]

If it is plastic lined simply wash the ducting with a rinse bottle and collect the liquid and any solids, place the solution in a beaker and heat to evaporate the excess water and add Hcl followed by very small additions of nitric watching for any reaction, if none cool filter and precipitate.

 

[autumnwillow]

I've been getting this 404 error sometimes when visiting this website not sure why. Oh well, we ended up incinerating and just removing the steel support. It went okay.

 

[FrugalRefiner]

Can you tell us more about when you get the 404 error code? Are you trying to access a site outside the forum (like lazersteve's site), or are you trying to access a link inside the forum? We can try to figure it out, but we need specific examples that we can repeat.

Dave

 

[autumnwillow]

In my cellphone when I visit the site I get a 403 error, in a PC I think I have solved it, as it was a bookmarked link.