12-03-2020 дата публикации
Номер: US20200078727A1
Принадлежит:
Herein are disclosed compositions of matter, processes of manufacture and processes of use of solid state admixtures that include an inorganic base and a sulfide selected from the group consisting of an ammonium sulfide, an alkali metal sulfide, an alkali-earth metal sulfide, transition metal sulfide, and a mixture thereof. The composition can include solid state inorganic bases (e.g., calcium hydroxide and sodium sesquicarbonate) and/or gaseous bases (e.g., ammonia) and, optionally, a support material for one or more of the inorganic base and sulfide. The compositions are useful for capturing environmental contaminants, for example, from the flue gas of a coal fired power plant. 1. A composition comprising:a solid state admixture of an inorganic base and a sulfide selected from the group consisting of an ammonium sulfide, an alkali metal sulfide, an alkali-earth metal sulfide, transition metal sulfide, and a mixture thereof.2. The composition of consisting essentially of an admixture of the inorganic base and the sulfide.3. The composition of further comprising a support carrying the admixture.4. The composition of claim 3 , wherein the composition consists essentially of the support carrying the admixture.5. The composition of - claim 3 , wherein the support is selected from the group consisting of a silicate claim 3 , an aluminate claim 3 , an aluminosilicate claim 3 , a carbon claim 3 , and a mixture thereof.6. The composition of any one of - claim 3 , wherein the support is a phyllosilicate selected from the group consisting of bentonite claim 3 , montmorillonite claim 3 , hectorite claim 3 , beidellite claim 3 , saponite claim 3 , nontronite claim 3 , volkonskoite claim 3 , sauconite claim 3 , stevensite claim 3 , fluorohectorite claim 3 , laponite claim 3 , rectonite claim 3 , vermiculite claim 3 , illite claim 3 , a micaceous mineral claim 3 , makatite claim 3 , kanemite claim 3 , octasilicate (illierite) claim 3 , magadiite claim 3 , kenyaite claim 3 , ...
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