|
ES120157A1
|
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Improvements in devices to perform reactions between solids and gases.
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GB355272A
|
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Apparatus for condensing sulphur
|
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GB348651A
|
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Process of and apparatus for effecting reaction between solids and gases
|
|
ES113646A1
|
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Improvements in the production of ferric oxide.
|
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GB314075A
|
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Improvements in the production of ferric oxide
|
|
US1992685A
|
|
Production of ferric oxide by burning ferric chloride
|
|
CA292215A
|
|
Treating sulphid ores
|
|
CA311154A
|
|
Apparatus for effecting reactions between solids and gases
|
|
CA306798A
|
|
Method of burning ferric chloride
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