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 1968 |
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Page 48
AMMONIUM CHLORIDE Although not widely used as a process , ammonium
chloride is produced in some plants by direct neutralisation of ammonia and
hydrochloric acid ; major process which is used for the manufacture of this
fertilizer is ...
AMMONIUM CHLORIDE Although not widely used as a process , ammonium
chloride is produced in some plants by direct neutralisation of ammonia and
hydrochloric acid ; major process which is used for the manufacture of this
fertilizer is ...
Page 72
Mr . M . J . Deshmukh ( Hindustan Zinc Ltd . , Debari , Udaipur ) In our
superphosphate plant where we are using rock phosphate containing high
amounts of chloride severe corrosion of type 316 stainless steel used in the
fabrication of ...
Mr . M . J . Deshmukh ( Hindustan Zinc Ltd . , Debari , Udaipur ) In our
superphosphate plant where we are using rock phosphate containing high
amounts of chloride severe corrosion of type 316 stainless steel used in the
fabrication of ...
Page 73
In my opinion the main reason for such corrosion is the presence of chloride .
Even in the presence of as low a chloride as 5 ppm its concentration at crevices
may go up considerably , leading to failure due to stress corrosion cracking .
In my opinion the main reason for such corrosion is the presence of chloride .
Even in the presence of as low a chloride as 5 ppm its concentration at crevices
may go up considerably , leading to failure due to stress corrosion cracking .
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Contents
INTRODUCTION | 3 |
CHEMICAL CORROSION AND ITS PREVENTION | 13 |
DISCUSSION | 22 |
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 give given handling heat hydrogen hydrogen sulphide increase industry inhibitor iron lead less 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