Corrosion in Fertiliser and Petroleum Industry: Proceedings of Short Course on "Corrosion in Fertiliser and Petroleum Industry" Organised by the Corrosion Advisory Bureau at Udyogamandal from 20th to 24th December 1968K. N. P. Rao, A. K. Lahiri |
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Page 136
... amounts of chloride . The safest way is therefore to use inhibitors . Both chromates and dichromates are widely used ... amount of ammonia formed . Borax is very cheap and small amounts help in inhibiting the corrosion of steel and zinc ...
... amounts of chloride . The safest way is therefore to use inhibitors . Both chromates and dichromates are widely used ... amount of ammonia formed . Borax is very cheap and small amounts help in inhibiting the corrosion of steel and zinc ...
Page 137
... amount of divalent ions , such as , calcium or zinc also raises the limiting amount of chloride which may be tolerated . Excellent results have been obtained in preventing attack on mild steel by solutions containing upto 1,500 ppm ...
... amount of divalent ions , such as , calcium or zinc also raises the limiting amount of chloride which may be tolerated . Excellent results have been obtained in preventing attack on mild steel by solutions containing upto 1,500 ppm ...
Page 143
... amount of resistance the potential of the structure after the application of the cathodic protection has to suffer an IR drop . The IR drop at point will be more as the distance between the point and the source of the current increases ...
... amount of resistance the potential of the structure after the application of the cathodic protection has to suffer an IR drop . The IR drop at point will be more as the distance between the point and the source of the current increases ...
Contents
INTRODUCTION | 3 |
CHEMICAL CORROSION AND ITS PREVENTION | 13 |
CORROSION PROBLEMS IN THE MANUFACTURE OF NITROGEN BASED FERTILIZER | 27 |
9 other sections not shown
Common terms and phrases
addition alloys aluminium ammonia ammonium amount anodic application attack bottom carbon steel cast iron cathodic protection cause chemical chloride chromium coatings concentration construction containing cooling corrosion problems corrosion rate cracking crude developed distillation effective environment epoxy equipment exchangers failure fertiliser flow formation give given handling heat higher hydrogen hydrogen sulphide increase industry inhibitor iron lead material metal method mild steel Monel months natural observed occurred operating organic oxide oxygen paint petroleum phosphate pipe pitting plant plates potential practice presence pressure prevent pumps range reaction reduced refinery removal resistance rubber severe shell showing solution specially stainless steel steam storage tanks stress corrosion structure suitable sulphuric acid surface Table tanks temperature tests thickness tower treatment tubes unit various welding zinc