Conversion of Metal Carbonate into Metal Chloride
AssigneeSiemens Aktiengesellschaft
InventorsGuenter SCHMID, Dan TAROATA, Ralf KRAUSE
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Abstract
A method for producing metal chloride Mx+Clx− includes reacting metal carbonate in solid form using phosgene, diphosgene and/or triphosgene to form metal chloride Mx+Clx−, wherein the metal M is selected from the group containing alkali metals, alkaline earth metals, Al and Zn, Li and Mg, or Li, for example, and x corresponds to the valency of the metal cations. An apparatus for performing such method is also disclosed.
Claims18
A method for producing metal chloride Mx+Clx−, the method comprising:
- providing phosgene, diphosgene and/or triphosgene,
- reacting metal carbonate as solid with the phosgene, diphosgene and/or triphosgene to produce metal chloride Mx+Clx−,
- wherein the metal M is selected from the group consisting of the alkali metals, alkaline earth metals, Al and Zn, Li and Mg, and Li, and
- wherein x indicates the valence of the metal cation.
An apparatus for reacting metal carbonate as solid with phosgene, diphosgene and/or triphosgene to produce metal chloride Mx+Clx−, wherein the metal M is selected from the group consisting of the alkali metals, alkaline earth metals, Al and Zn, Li and Mg, and Li, and wherein x indicates the valence of the metal cation, the apparatus comprising:
- a first reactor for the reaction of metal carbonate and phosgene, diphosgene and/or triphosgene;
- a first supply device configured to introduce metal carbonate as solid into the first reactor;
- a second supply device configured to introduce phosgene, diphosgene and/or triphosgene into the first reactor;
- a first discharge device configured to remove metal chloride from the first reactor;
- and
- a second discharge device configured to remove gaseous products of the reaction of metal carbonate and phosgene, diphosgene and/or triphosgene from the first reactor.
An apparatus for reacting metal carbonate as solid with phosgene, diphosgene and/or triphosgene to produce metal chloride Mx+Clx−, the metal M being selected from the group consisting of the alkali metals, alkaline earth metals, Al and Zn, Li and Mg, and Li, and x indicating the valence of the metal cation, and wherein metal M is additionally added as reactant, the apparatus comprising
- a first reactor for the reaction of metal carbonate and phosgene, diphosgene and/or triphosgene;
- a first supply device configured to introduce metal carbonate as solid into the first reactor;
- a seventh supply device configured to introduce chlorine into the first reactor;
- a first discharge device configured to remove metal chloride from the first reactor;
- at least one eighth supply device configured to introduce carbon monoxide and/or phosgene, diphosgene and/or triphosgene into the first reactor;
- and
- a second discharge device configured to remove gaseous products of the reaction of metal carbonate and phosgene, diphosgene and/or triphosgene from the first reactor, and
- a third supply device configured to introduce metal M into the first reactor.
Dependencies are inferred from the claim text.