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hissingnoise
International Hazard
Posts: 3940
Registered: 26-12-2002
Member Is Offline
Mood: Pulverulescent!
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Nice! Filtering the old CAN fertiliser was time-consuming and messier but the product was about the same!
Its cost, though, was altogether different . . .
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NedsHead
Hazard to Others
Posts: 409
Registered: 9-12-2014
Location: South Australia
Member Is Offline
Mood: No Mood
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I wish I had the option to to just grab a bag of CAN and filter it, I would even settle for a supply of nitric acid. I currently have to first make
the nitric so I can then make the ammonium nitrate but it's also very time consuming.
I think I'll look for some other processes with OTC chems
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Bert
Super Administrator
Posts: 2821
Registered: 12-3-2004
Member Is Offline
Mood: " I think we are all going to die. I think that love is an illusion. We are flawed, my darling".
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Dedication...
Could you estimate hours of your time spent & actual materials cost per kg of finished AN?
Granted, equipment for making nitric acid and performing the metathesis reaction is minimal, but I have to think amateurs in a few countries WOULD be
ahead to improvise a small Haber-Bosch plant- Bet THAT would surprise hell out of the judges at your local high school science fair!
Whip out your collection of Raspberry Pi and PID bits for process control and start fabbing. You'll need the school's art dept. ceramics kiln for
firing the porous ceramic catalysts, and a bit of time in the metal shop for assembling the rest of the process equipment.
A school year should be enough? Then just wheel the unit into the science fair exhibition hall, plug the unit in, turn on the air compressor and
natural gas supply. Stand back.
Anything worth doing is worth OVER doing! 
Rapopart’s Rules for critical commentary:
1. Attempt to re-express your target’s position so clearly, vividly and fairly that your target says: “Thanks, I wish I’d thought of putting it
that way.”
2. List any points of agreement (especially if they are not matters of general or widespread agreement).
3. Mention anything you have learned from your target.
4. Only then are you permitted to say so much as a word of rebuttal or criticism.
Anatol Rapoport was a Russian-born American mathematical psychologist (1911-2007).
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NedsHead
Hazard to Others
Posts: 409
Registered: 9-12-2014
Location: South Australia
Member Is Offline
Mood: No Mood
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Maybe I'll stop complaining and continue concentrating battery acid and distilling the nitric acid it is a pain but I'm rewarded in the end. I'm considering buying a larger RBF so I can produce larger batches at one
time, the largest RBF I own at the moment is only 1000ml and foaming prevents me from using its full capacity.
I haven't calculated the actual cost in materials, I buy in bulk so the costs are quite low.
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