GB1348061A - Process for utilising coal residues - Google Patents
Process for utilising coal residuesInfo
- Publication number
- GB1348061A GB1348061A GB1294671*[A GB1294671A GB1348061A GB 1348061 A GB1348061 A GB 1348061A GB 1294671 A GB1294671 A GB 1294671A GB 1348061 A GB1348061 A GB 1348061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal residues
- cement
- slag
- utilising
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003245 coal Substances 0.000 title abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000004568 cement Substances 0.000 abstract 3
- 239000002893 slag Substances 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000007792 addition Methods 0.000 abstract 1
- 239000002956 ash Substances 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000010881 fly ash Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/28—Cements from oil shales, residues or waste other than slag from combustion residues, e.g. ashes or slags from waste incineration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
1348061 Cement L TRIEF 4 May 1971 [4 May 1970] 12946/71 Heading C1H [Also in Division F4] A cement is obtained by heating a mixture of coal residues and CaCO 3 at a temperature below that at which it softens, raising the temperature to at least 1500‹ C. to form a molten slag which is rapidly water cooled and granulated which is then ground. The coal residues can be fly ash or mining detritus. Additions to the cement are crude ash, and hardeners, e.g. NaOH, Na 2 SO 4 , CaSO 4 , Na 2 CO 3 . When more than 4% Fe 2 O 3 occurs in the coal residues a third heating to 1800‹ C. is made whereby metal separates from the slag and is removed thus purifying the slag which transforms it into a "white" binder.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU60850 | 1970-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1348061A true GB1348061A (en) | 1974-03-13 |
Family
ID=19726348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1294671*[A Expired GB1348061A (en) | 1970-05-04 | 1971-05-04 | Process for utilising coal residues |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3759730A (en) |
| FR (1) | FR2090813A5 (en) |
| GB (1) | GB1348061A (en) |
| LU (1) | LU60850A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1107307A (en) * | 1976-11-04 | 1981-08-18 | Jozef K. Tylko | Production of hydraulic cements, cement-forming materials and aggregates |
| US4174974A (en) * | 1978-04-14 | 1979-11-20 | Standard Oil Company (Indiana) | Process for converting coal ash slag into portland cement |
| US4224077A (en) * | 1978-05-10 | 1980-09-23 | Olifer Vladimir P | Raw mix for the production of portland cement clinker |
| US4295744A (en) * | 1979-04-23 | 1981-10-20 | Muskogee Environmental Conservation Co. | Slurry gun |
| US4242313A (en) * | 1980-03-21 | 1980-12-30 | Extraction Research & Development, Inc. | Processes for the recovery of alumina from fly ash and production of cement constituents |
| US4508573A (en) * | 1981-12-02 | 1985-04-02 | Texas Industries, Inc. | Co-production of cementitious products |
| US4600438A (en) * | 1983-03-09 | 1986-07-15 | Texas Industries, Inc. | Co-production of cementitious products |
| FR2864074B1 (en) * | 2003-12-18 | 2006-05-19 | Lafarge Sa | HYDRAULIC MINERAL COMPOSITION AND PROCESS FOR THE PRODUCTION THEREOF, CEMENTITIOUS PRODUCTS AND HYDRAULIC BINDERS CONTAINING SUCH A COMPOSITION |
| US20060032408A1 (en) * | 2004-08-12 | 2006-02-16 | Strabala William M | Method of making pozzolands and cementitious materials from coal combustion by-products |
| CN109550932B (en) * | 2017-09-27 | 2022-10-18 | 北京君研碳极科技有限公司 | Preparation method of composite wave-absorbing material based on coal-to-liquid residue |
-
1970
- 1970-05-04 LU LU60850D patent/LU60850A1/xx unknown
-
1971
- 1971-04-27 FR FR7115019A patent/FR2090813A5/fr not_active Expired
- 1971-04-30 US US00138873A patent/US3759730A/en not_active Expired - Lifetime
- 1971-05-04 GB GB1294671*[A patent/GB1348061A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2122027B2 (en) | 1976-03-11 |
| US3759730A (en) | 1973-09-18 |
| DE2122027A1 (en) | 1971-11-18 |
| FR2090813A5 (en) | 1972-01-14 |
| LU60850A1 (en) | 1972-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |