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DE349914C
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Process for cleaning zinc solutions
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US1382494A
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Purification of zinc solutions
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US1363052A
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|
Treatment of zinc solutions
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US1337058A
|
|
Purification of zinc solutions
|
|
US1331334A
|
|
Purification of zinc solutions
|
|
GB138950A
|
|
Improvements in or relating to the purification of metallic solutions
|
|
US1265547A
|
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Extraction of lead from its ores or lead-containing materials.
|
|
US1295080A
|
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Extraction of zinc.
|
|
GB104697A
|
|
Improvements in or relating to the Extraction of Zinc.
|
|
GB191506482A
|
|
Improvements in or relating to the Evaporation of Solutions, Salts and the like to Dryness.
|
|
GB191421737A
|
|
Improvements in or relating to the Extraction of Zinc Compounds from Zinc Ores or Products.
|
|
US1180765A
|
|
Extraction of zinc from its ores or products.
|
|
GB191321581A
|
|
Improvements in or relating to the Separation of Zinc from Sulphide Ores.
|
|
CA150709A
|
|
Deposition of metallic salts
|
|
US1074203A
|
|
Deposition of metallic salts from solutions containing them.
|
|
GB191110052A
|
|
Improvements in or relating to the Deposition of Metallic Salts from Solutions Containing them.
|
|
GB191107222A
|
|
Improvements in or relating to the Deposition of Metallic Salts from Solutions containing them.
|
|
US999213A
|
|
Apparatus for bringing a gas into contact with a liquid.
|
|
CA141164A
|
|
Oxide of zinc manufacture
|
|
US1007124A
|
|
Manufacture of oxid of zinc for smelting.
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