Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US-12330989-B2 · Jun 17, 2025 · US
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods
US2025100927A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025100927-A1 |
| Application number | US-202418971207-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 6, 2024 |
| Priority date | Jan 16, 2019 |
| Publication date | Mar 27, 2025 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method of producing calcium hydroxide, comprising: producing an acid and a base via electrolysis; dissolving a material comprising calcium using the acid to produce ions comprising calcium; precipitating calcium hydroxide from the ions comprising calcium using the base in a region of a reactor with a pH of 10 or higher; and collecting the calcium hydroxide. 2 . The method of claim 1 , wherein the material further comprises magnesium. 3 . The method of claim 2 , further comprising producing a product comprising the magnesium. 4 . The method of claim 3 , further comprising collecting the product comprising the magnesium. 5 . The method of claim 1 , wherein dissolving the material comprising calcium using the acid to produce ions comprising calcium is in a region of a reactor with a pH of 6 or less. 6 . The method of claim 1 , further comprising utilizing the calcium hydroxide in a downstream process. 7 . The method of claim 6 , wherein the downstream process comprises at least one of making a construction material, making a chemical, making pulp or paper, treating soil, or making food. 8 . The method of claim 6 , wherein the downstream process comprises making a cement. 9 . The method of claim 8 , wherein utilizing the calcium hydroxide in a downstream process to make a cement comprises mixing the calcium hydroxide with an aluminate, a silicate, and/or a pozzolanic material. 10 . The method of claim 9 , wherein utilizing the calcium hydroxide in a downstream process to make a cement comprises mixing the calcium hydroxide with the silicate. 11 . The method of claim 9 , wherein utilizing the calcium hydroxide in a downstream process to make a cement comprises mixing the calcium hydroxide with the pozzolanic material. 12 . The method of claim 8 , wherein utilizing the calcium hydroxide in a downstream process to make a cement comprises converting the calcium hydroxide into calcium oxide. 13 . The method of claim 8 , further comprising mixing the cement with water and an additive to form a concrete. 14 . The method of claim 8 , wherein the cement comprises Pozzolan cement. 15 . A method of producing calcium hydroxide, comprising: dissolving a material comprising calcium using an acid to produce ions comprising calcium; precipitating calcium hydroxide from the ions comprising calcium using a base in a region of a reactor with a pH of 10 or higher; and collecting the calcium hydroxide. 16 . The method of claim 15 , wherein dissolving the material comprising calcium using the acid to produce ions comprising calcium is in a region of a reactor with a pH of 6 or less. 17 . The method of claim 15 , wherein the material further comprises magnesium. 18 . The method of claim 17 , further comprising producing a product comprising the magnesium. 19 . The method of claim 18 , further comprising collecting the product comprising the magnesium. 20 . The method of claim 15 , further comprising utilizing the calcium hydroxide in a downstream process.
Assignees
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Classifications
Energy efficiency measures, e.g. improving or optimising the production methods · CPC title
- C04B7/06Primary
using alkaline raw materials (C04B7/60 takes precedence) · CPC title
Carbon capture and storage [CCS] · CPC title
Integrated combined plants or devices, e.g. combined foundry and concrete plant · CPC title
Continuous processes · CPC title
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Frequently asked questions
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- What does patent US2025100927A1 cover?
- Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described.
- Who is the assignee on this patent?
- Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification C04B7/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Mar 27 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).