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Apparatus for sulfur melting by lateral displacement of heating

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Integrated sulfur mining - sulfuric acid production system

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Method and apparatus for utilizing accumulated underground water

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Method of and apparatus for melting block sulphur

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Method of electric smelting to matte in situ

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Method of melting sulphur

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
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Process for heating and chemically treating an aqueous process f

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
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Residue recovery process and apparatus

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
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Sulfur storage method

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Reexamination Certificate

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Sulfur well sealing method

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
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