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
... preventing corrosion in supply waters because of the small amounts required . Furthermore , the treated waters are not harm- ful . Poly - phosphates perform a dual function they prevent scale formation and inhibit corrosion of steel and ...
... preventing corrosion in supply waters because of the small amounts required . Furthermore , the treated waters are not harm- ful . Poly - phosphates perform a dual function they prevent scale formation and inhibit corrosion of steel and ...
Page 137
... preventing attack on mild steel by solutions containing upto 1,500 ppm chloride ion by adding polyphosphate at a ... prevent the growth of sul- phur - reducing bacteria a small amount of bactericide may be added , e.g. , 5 ppm of ...
... preventing attack on mild steel by solutions containing upto 1,500 ppm chloride ion by adding polyphosphate at a ... prevent the growth of sul- phur - reducing bacteria a small amount of bactericide may be added , e.g. , 5 ppm of ...
Page 138
... prevent algae growth may increase corrosion if the concentration rises about 0.4 ppm . Concentration by evaporation may increase the original chloride and sulphate content to a level as high as 10 times the original value . Corrosion ...
... prevent algae growth may increase corrosion if the concentration rises about 0.4 ppm . Concentration by evaporation may increase the original chloride and sulphate content to a level as high as 10 times the original value . Corrosion ...
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