DE2852771C3 - - Google Patents

Info

Publication number

DE2852771C3

DE2852771C3 DE2852771C3 DE 2852771 C3 DE2852771 C3 DE 2852771C3 DE 2852771 C3 DE2852771 C3 DE 2852771C3

Authority

DE

Germany

Prior art keywords

lead

protective layer

heat exchanger

water

heat exchangers

Prior art date

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

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• 150000003839 salts Chemical class 0.000 claims description 11
• 239000011241 protective layer Substances 0.000 claims description 8
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
• 150000001450 anions Chemical class 0.000 claims description 2
• 239000011230 binding agent Substances 0.000 claims 1
• HUTDDBSSHVOYJR-UHFFFAOYSA-H bis[(2-oxo-1,3,2$l^{5},4$l^{2}-dioxaphosphaplumbetan-2-yl)oxy]lead Chemical compound [Pb+2].[Pb+2].[Pb+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O HUTDDBSSHVOYJR-UHFFFAOYSA-H 0.000 claims 1
• MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 claims 1
• 230000000737 periodic effect Effects 0.000 claims 1
• 239000007789 gas Substances 0.000 description 8
• 230000015572 biosynthetic process Effects 0.000 description 7
• 239000010410 layer Substances 0.000 description 6
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
• 238000004519 manufacturing process Methods 0.000 description 3
• KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 2
• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
• NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
• RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
• 239000011248 coating agent Substances 0.000 description 2
• 238000000576 coating method Methods 0.000 description 2
• 238000009833 condensation Methods 0.000 description 2
• 230000005494 condensation Effects 0.000 description 2
• 229910052802 copper Inorganic materials 0.000 description 2
• 239000010949 copper Substances 0.000 description 2
• 230000007797 corrosion Effects 0.000 description 2
• 238000005260 corrosion Methods 0.000 description 2
• ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
• ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
• 239000002253 acid Substances 0.000 description 1
• 239000000956 alloy Substances 0.000 description 1
• 229910045601 alloy Inorganic materials 0.000 description 1
• 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
• 239000003795 chemical substances by application Substances 0.000 description 1
• 239000000460 chlorine Substances 0.000 description 1
• 229910052801 chlorine Inorganic materials 0.000 description 1
• KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
• AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
• 238000010438 heat treatment Methods 0.000 description 1
• 230000005923 long-lasting effect Effects 0.000 description 1
• 238000012423 maintenance Methods 0.000 description 1
• 230000001376 precipitating effect Effects 0.000 description 1
• 230000002265 prevention Effects 0.000 description 1
• 239000000126 substance Substances 0.000 description 1