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Subject: Re: Online Assistance to Corrosion Problems

Date: 10/02/01 at 4:26 PM
Posted by: RENGİN DEMİRÖZ
E-mail: rengind@yahoo.com
Message Posted:

In Reply to: Online Assistance to Corrosion Problems posted by Dr. R.D. Kane on 01/05/01 at 8:42 AM:

DEAR,
DURING PET POLYMERISATION REACTION ,WE APPLY VACUUM TO PULL REACTION SIDE PRODUCTS FROM THE REACTOR.SIDE PRODUCTS ARE MONOETHYLENEGLYCOL(71%),WATER(21%),OLİGOMERES(7%),DI-GLYCOL(0,6%),ALDEHYDE(0,1%).TO PROCEED VACUUM WE USE STEAM AND COOLING WATER TO CONDANSATE THIS STEAM.WE HAVE BIG CORROSION PROBLEM IN COOLING WATER LINES.LINES ARE AS FOLLOWS:FROM VACUUM UNIT WATER GOES TO COOLING TOWER,FROM THERE TO WATER POOL AND PUMPED TO VACUUM UNIT.ACIDITY OF THIS WATER INCREASES VERY QUICKLY.WHAT ARE THE REASONS OF THIS PROBLEM?WHAT CAN YOU SUGGEST TO LOWER THIS ACIDITY & CORROSIVITY?

SINCERELY YOURS,
RENGİN DEMİRÖZ
POLYMERISATION CHIEF OF POLYLEN COMPANY


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