Separation of ammonia from sulfur compounds
AssigneeSundance Resources Inc.
InventorRobert V. Kerley
Life of this patent
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Abstract
A method for separating ammonia and sulfides from a sour water stream is disclosed. The stripping of a sour water stream where it is stripped to create a sour water stripper overhead gas and then contacted with an alkali hydroxide in order to separate ammonia and make an alkali sulfide.
Claims25
A method of separating a sour water stream containing ammonia and sulfides comprising the steps of:
- Stripping the sour water stream to create an SWS Gas, and
- Contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide.
A method of disposing of a sour water stream comprising the steps of:
- Stripping a sour water stream to create an SWS Gas,
- Contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide, and
- Using the alkali hydrosulfide in a mining process.
A method to produce a copper concentrate depressant (separator) from a molybdenum concentrate from ore comprising the steps of:
- Stripping a sour water stream to create an SWS Gas,
- Contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide, and
- Using the alkali hydrosulfide to separate copper concentrate from molybdenum concentrate from ore.
A method of separating a SWS gas containing ammonia and sulfides comprising the step of:
- contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide.
A method to produce a copper concentrate depressant (separator) from a molybdenum concentrate from ore using SWS Gas comprising the steps of:
- Contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide, and
- Contacting the alkali hydrosulfide with molybdenum concentrate from ore to separate copper concentrate.
A method of disposing of a SWS gas comprising the steps of:
- contacting the SWS Gas with an alkali hydroxide in order to separate ammonia and make an alkali hydrosulfide, and
- using the alkali hydrosulfide in a mining process or for other applications requiring a high quality, high analysis NaHS and using the ammonia in industrial applications.
Dependencies are inferred from the claim text.