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GB403961A
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Treatment of iron pyrites for recovery of sulphur and formation of iron oxide
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GB358851A
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Method of recovering sulphur from gases
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GB359568A
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Improved process of treating sulphide materials
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GB350574A
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A method of removing arsenic and chlorine from sulphur
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GB350573A
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Method of treating recovered sulphur
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GB342140A
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Improvements in the production of iron compounds and of chlorine
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GB304054A
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Improvements in and connected with the separation of lead from solutions
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GB307188A
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Improvements in and relating to the treatment of iron pyrites
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GB309269A
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Improvements in or relating to the recovery of copper from copper rich material
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GB307190A
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Improvements in and relating to the treatment of iron pyrites
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GB304053A
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Electrolysis of ferrous chloride
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GB309268A
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Treatment of chloride solutions
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GB306691A
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Improvements in and relating to the treatment of pyrites
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