Calcium oxide or magnesium oxide production with alkali and sulfur dioxide intermediates
US-12017985-B2 · Jun 25, 2024 · US
Method for producing cement clinker
US2025214891A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025214891-A1 |
| Application number | US-202318848832-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 9, 2023 |
| Priority date | Mar 28, 2022 |
| Publication date | Jul 3, 2025 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
It is a production method of cement clinker comprising a calcination step of calcinating cement clinker powder raw material injected in a calcination kiln, with a kiln burner using a thermal energy source comprising gas fuel, wherein the used amount of gas fuel in the thermal energy source to be used in the kiln burner is adjusted so that the temperature of the kiln burner is lower that its heat resistant temperature.
First claim
Opening claim text (preview).
1 . A method for producing a cement clinker comprising: calcinating a cement clinker powder raw material injected in a calcination kiln with a kiln burner by using a thermal energy source comprising gas fuel, wherein the used amount of the gas fuel in the thermal energy source to be used in the kiln burner is adjusted so that a temperature of the kiln burner is lower than a heat resistant temperature of the kiln burner. 2 . The method for producing a cement clinker according to claim 1 , wherein the temperature of the kiln burner is adjusted to be 40° C. or more below the heat resistant temperature of the kiln burner. 3 . The method for producing a cement clinker according to claim 1 , wherein the gas fuel is hydrogen. 4 . A method for producing a cement, comprising: mixing gypsum to the cement clinker produced by the method for producing a cement clinker according to claim 1 , and crushing the cement clinker mixed with the gypsum. 5 . The method for producing a cement clinker according to claim 2 , wherein the gas fuel is hydrogen. 6 (New) A method for producing a cement, comprising: mixing gypsum to the cement clinker produced by the method for producing a cement clinker according to claim 2 , and crushing the cement clinker mixed with the gypsum. 7 . A method for producing a cement, comprising: mixing gypsum to the cement clinker produced by the method for producing a cement clinker according to claim 3 , and crushing the cement clinker mixed with the gypsum. 8 . A method for producing a cement, comprising: mixing gypsum to the cement clinker produced by the method for producing a cement clinker according to claim 5 , and crushing the cement clinker mixed with the gypsum.
Assignees
Inventors
Classifications
Aspects relating to the protection of the environment · CPC title
Waste or refuse used as fuel · CPC title
Preparing or treating the raw materials individually or as batches {, e.g. mixing with fuel; (C04B7/362 takes precedence)} · CPC title
Preheating with addition of fuel, e.g. calcining · CPC title
Grinding {; After-treatment of ground cement} · CPC title
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- What does patent US2025214891A1 cover?
- It is a production method of cement clinker comprising a calcination step of calcinating cement clinker powder raw material injected in a calcination kiln, with a kiln burner using a thermal energy source comprising gas fuel, wherein the used amount of gas fuel in the thermal energy source to be used in the kiln burner is adjusted so that the temperature of the kiln burner is lower that its hea…
- Who is the assignee on this patent?
- Tokuyama Corp
- What technology area does this patent fall under?
- Primary CPC classification C04B7/367. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 03 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).