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Topic: Paper bleaching with h202 for handmade paper  (Read 4767 times)

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bjorn_nepal

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Paper bleaching with h202 for handmade paper
« on: April 25, 2005, 10:53:53 AM »
Hi!

I am running a handmade paper company in Nepal and I need som help with environmental friendly bleaching.
All companies here use Clorine for bleaching, and we like to use Hydrogen Peroxide instead, but how do we do it in practice??

I have managed to find som very technical papers on this, but since none of us in the company have a higher education we don't understand how to apply this in practice.

Could someone here explain this very practically? or give me a link somewhere?
We would need to bleach about 25-50 kg pulp each day.

How strong solution is needed?
Do we need to boil it?
Should we attempt an electrolysis?
What are the risks involved?

Thanks a lot!
Bjorn Soderberg
Watabaran Org Nepal
www.watabaran.org



Offline kevins

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Re:Paper bleaching with h202 for handmade paper
« Reply #1 on: April 25, 2005, 11:56:11 AM »
Please read the following and see any help

http://aic.stanford.edu/jaic/articles/jaic23-01-005.html

bjorn_nepal

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Re:Paper bleaching with h202 for handmade paper
« Reply #2 on: April 26, 2005, 02:09:42 AM »

Thanks, but this is way to technical.. and it is not really for the application we need.

Any more ideas??

/Björn

Offline Mitch

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Re:Paper bleaching with h202 for handmade paper
« Reply #3 on: April 26, 2005, 02:28:40 AM »
I suggest hiring a local Chemistry student from a Nepal University to help you out, it shouldn't be too difficult for them.
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