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 5
... reaction is divided into an anodic portion and a cathodic one , occurring simultaneously at discrete points on the metallic surfaces . The anodic reaction , e.g. , Fe = Fe +++ 2e , represents loss of electrons ( oxidation ) by the ...
... reaction is divided into an anodic portion and a cathodic one , occurring simultaneously at discrete points on the metallic surfaces . The anodic reaction , e.g. , Fe = Fe +++ 2e , represents loss of electrons ( oxidation ) by the ...
Page 53
... reaction vessels where the reaction is completed . Though the basic reaction is the produc- tion of phosphoric acid and gypsum , because of impurities , side reactions occur simultaneously . The HF which is produced is very reactive and ...
... reaction vessels where the reaction is completed . Though the basic reaction is the produc- tion of phosphoric acid and gypsum , because of impurities , side reactions occur simultaneously . The HF which is produced is very reactive and ...
Page 56
... reaction . The process consists of three stages , viz . mixing of rock and acid , reaction in the den to allow the product to solidify and curing for complete conversion . In the manufacture of normal superphosphate , rock phosphate is ...
... reaction . The process consists of three stages , viz . mixing of rock and acid , reaction in the den to allow the product to solidify and curing for complete conversion . In the manufacture of normal superphosphate , rock phosphate is ...
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