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
alloys aluminium amine ammonia ammonium nitrate ammonium sulphate anodic protection attack austenitic bacteria brass carbon dioxide carbon steel cast iron cathodic protection cause caustic cell chemical chloride chromium coatings concentration condensate containing cooling copper Corpn corrosion due corrosion problems corrosion rate corrosion resistance distillation effective environment epoxy equipment erosion evaporator failure fertiliser flow galvanic gases graphite Hastelloy high temperatures hydrochloric acid hydrogen sulphide increase inhibitor intergranular layer liquor material of construction metal surface mild steel Monel nickel nitric acid nitrogen occurred operating oxide oxygen paint petroleum industry phenol phosphate phosphoric acid pipe pipelines pitting plant plates polyester potential presence pressure Prot pumps reaction reboiler reduced refinery resin rubber saturation sea water shell Sindri sodium solution stainless steel steam storage tanks stress corrosion cracking structure sulphuric acid tower tubes type of corrosion upto velocity welding zinc