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US 11,890,572 B1Granted
Soda magcite composition, methods of manufacture and use in carbon dioxide (CO2) sequestration
AssigneeAspiring Materials Limited
InventorsAllan Charles Nye Scott, Christopher John-Paul Oze
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Abstract
Described herein is a soda magcite composition, methods of manufacture of soda magcite compositions and use of soda magcite for carbon dioxide sequestration. The soda magcite composition comprises a mixture of magnesium hydroxide, metal hydroxide and water to create a composition that is highly effective at sequestering carbon dioxide.
Claims18
A magnesium based hydrate composition, comprising:
- 60-90% by weight of magnesium hydroxide containing material;
- 1 to 10% by weight of NaOH;
- and
- greater than 5% of water;
- wherein said magnesium hydroxide containing material and said NaOH and said water are all configured to be mixed together to form the magnesium based hydrate composition, such that via said NaOH of said magnesium based hydrate composition, said magnesium based hydrate composition is configured to catalyze sequestration of carbon to said magnesium hydroxide containing material.
2 more elements
A method of manufacturing a magnesium based hydrate composition, comprising:
- selecting a magnesium containing silicate source;
- subjecting the magnesium containing silicate source that is selected to acid wash, to produce an acid digested solution;
- subjecting the acid digested solution to a base wash by adding a base solution to the acid digested solution to produce a magnesium salt solution and, during this step, removing silica, iron or other metals and minerals from the magnesium salt solution;
- subjecting the magnesium salt solution to electrolysis to recover magnesium hydroxide;
- mixing the magnesium hydroxide that is recovered with a solution containing NaOH and water to produce the magnesium based hydrate composition;
- wherein said magnesium based hydrate composition comprises
- 60-90% by weight of magnesium hydroxide containing material;
- 1 to 10% by weight of said NaOH;
- and
- greater than 5% of said water,
- such that via said NaOH of said magnesium based hydrate composition, said magnesium based hydrate composition is configured to catalyze sequestration of carbon to said magnesium hydroxide containing material.
8 more elements
A method of manufacturing a magnesium based hydrate composition comprising:
- selecting a magnesium containing silicate source;
- subjecting the magnesium containing silicate source that is selected to a base wash by adding a base solution to the magnesium containing silicate source to produce a magnesium hydroxide solution;
- mixing magnesium hydroxide that is recovered with a solution containing NaOH and water to produce the magnesium based hydrate composition;
- wherein said magnesium based hydrate composition comprises
- 60-90% by weight of magnesium hydroxide containing material;
- 1 to 10% by weight of said NaOH;
- and
- greater than 5% of said water,
- such that via said NaOH of said magnesium based hydrate composition, said magnesium based hydrate composition is configured to catalyze sequestration of carbon to said magnesium hydroxide containing material.
6 more elements
A method of manufacturing a magnesium based hydrate composition comprising:
- selecting a magnesium containing silicate source;
- subjecting the magnesium containing silicate source that is selected to acid wash, to produce an acid digested solution;
- subjecting the acid digested solution to a base wash by adding a base solution to the acid digested solution to produce a magnesium salt solution and, during this step, removing silica, iron or other metals and minerals from the magnesium salt solution;
- completing a further base wash to separate magnesium hydroxide in solution and filtering the magnesium hydroxide in solution that is separated and recovering a magnesium hydroxide retentate and a permeate, the permeate comprising metal salt in solution;
- mixing the magnesium hydroxide that is recovered with a solution containing NaOH and water to produce the magnesium based hydrate composition, said magnesium based hydrate composition comprising
- 60-90% by weight of magnesium hydroxide containing material;
- 1 to 10% by weight of said NaOH;
- and
- greater than 5% of said water,
- such that via said NaOH of said magnesium based hydrate composition, said magnesium based hydrate composition is configured to catalyze sequestration of carbon to said magnesium hydroxide containing material.
7 more elements
Dependencies are inferred from the claim text.