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Topic: first pass retention in paper making  (Read 5061 times)

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Offline shavira

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first pass retention in paper making
« on: May 03, 2013, 04:18:42 AM »
can somebody explain to me in general first pass retention in paper making...
As i know they usually using alum or PAC in process.
Do I need add any others chemical in the process?
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Offline Borek

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Re: first pass retention in paper making
« Reply #1 on: May 03, 2013, 05:23:00 AM »
You have to show your attempts at solving the question to receive help. This is a forum policy.
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Offline shavira

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Re: first pass retention in paper making
« Reply #2 on: May 06, 2013, 09:32:41 PM »
I doing study for process differences as technical engineer now
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Offline curiouscat

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Re: first pass retention in paper making
« Reply #3 on: May 06, 2013, 11:31:27 PM »
Quote from: shavira on May 06, 2013, 09:32:41 PM
I doing study for process differences as technical engineer now

Man. That was non sequitur of the year.
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