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US1160375A
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Process of removing sulfureted hydrogen from gases.
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GB191401415A
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Process for the Removal of Sulphuretted Hydrogen from Coal Gas and the like.
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GB191313724A
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Process for Removing Sulphuretted Hydrogen from Gases.
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GB191216172A
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Process for Removing Sulphuretted Hydrogen from Gases.
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GB191215977A
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A Process for Increasing the Yield of Ammonia from Gases of Dry Distillation.
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GB191215742A
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Process for Producing Ammonia from Sulpho-cyanide Compounds and for the Purification of Compounds Containing Sulpho-cyanide Compounds.
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GB191208217A
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A Process for Making Used Gas Purifying Mass Fit for Re-use by Roasting.
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GB191206471A
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Improved Process for the Production of Sulphite and Sulphate of Ammonia in the Manufacture of Gas.
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GB191112227A
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New or Improved Process for Converting Sulphite of Ammonia into Sulphate of Ammonia.
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US1034974A
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Method of converting ammonium sulfite into ammonium sulfate.
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GB191111517A
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Improvements in or connected with the Recovery of Sulphite and Sulphate of Ammonia in the Manufacture of Gas.
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CA131759A
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Process of separating sulphuretted hydrogen from gases
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GB191022335A
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New or Improved Process for Separating Sulphuretted Hydrogen from Gases.
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US1018479A
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Process of recovering sulfur from gas.
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GB191017359A
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Improved Process for Producing Sulphate of Ammonia in the Manufacture of Gas.
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GB191015877A
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Process for the Preparation of Ammonium Sulphite or Sulphate from Gases.
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US973164A
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Process of obtaining ammonium salts from gas.
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GB190820920A
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An Improved Process of Purifying Gases Generated by Dry Distillation, and of Obtaining By-products therefrom.
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CA201640A
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Process for removing sulphuretted hydrogen
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