FR2311763A1 - Mineral binders prodn. - by subjecting starting materials to intensive ionising radiation - Google Patents
Mineral binders prodn. - by subjecting starting materials to intensive ionising radiationInfo
- Publication number
- FR2311763A1 FR2311763A1 FR7515825A FR7515825A FR2311763A1 FR 2311763 A1 FR2311763 A1 FR 2311763A1 FR 7515825 A FR7515825 A FR 7515825A FR 7515825 A FR7515825 A FR 7515825A FR 2311763 A1 FR2311763 A1 FR 2311763A1
- Authority
- FR
- France
- Prior art keywords
- prodn
- mineral binders
- intensive
- binders
- starting materials
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/081—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing particle radiation or gamma-radiation
- B01J19/085—Electron beams only
-
- 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
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4453—Burning; Melting using plasmas or radiations
-
- 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
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
Prodn. of mineral binders esp. Portland cement by subjecting a sufficiently thin layer of raw materials on a conveyor to ionising irradiation is improved in that the intensity of the irradiation is at least 1 Mrad/sec. The starting mixt. is pref. preliminarily heated to a temp. =600 degrees C. gamma-radiation or electron beams are used. No combustible fuel is used. the process is sufficiently intensive to be conducted on the industrial scale. The conversion is very rapid (a few secs). There is no need to work under vacuum. There is no contamination of the surrounding atmos. by combustion gases and dust. Apart from Portland cement, other mineral binders can be produced, such as alumina cement, gypsum, lime, magnesia, dolomite binders etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7515825A FR2311763A1 (en) | 1975-05-21 | 1975-05-21 | Mineral binders prodn. - by subjecting starting materials to intensive ionising radiation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7515825A FR2311763A1 (en) | 1975-05-21 | 1975-05-21 | Mineral binders prodn. - by subjecting starting materials to intensive ionising radiation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2311763A1 true FR2311763A1 (en) | 1976-12-17 |
FR2311763B1 FR2311763B1 (en) | 1977-12-09 |
Family
ID=9155485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7515825A Granted FR2311763A1 (en) | 1975-05-21 | 1975-05-21 | Mineral binders prodn. - by subjecting starting materials to intensive ionising radiation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2311763A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2521980A1 (en) * | 1982-02-22 | 1983-08-26 | Empresa Nac Hulleras Norte | PROCESS FOR THE MANUFACTURE OF CEMENT CLINKER USING A HIGH TEMPERATURE REACTOR |
EP1260489A1 (en) * | 2001-05-23 | 2002-11-27 | Carrières du Boulonnais | Process for producing sulfoaluminous and/or ferroaluminous cement, cement thus obtained and installation for carrying out the process |
-
1975
- 1975-05-21 FR FR7515825A patent/FR2311763A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2521980A1 (en) * | 1982-02-22 | 1983-08-26 | Empresa Nac Hulleras Norte | PROCESS FOR THE MANUFACTURE OF CEMENT CLINKER USING A HIGH TEMPERATURE REACTOR |
EP1260489A1 (en) * | 2001-05-23 | 2002-11-27 | Carrières du Boulonnais | Process for producing sulfoaluminous and/or ferroaluminous cement, cement thus obtained and installation for carrying out the process |
WO2002094732A1 (en) * | 2001-05-23 | 2002-11-28 | Carrieres Du Boulonnais, S.A.S. | Method for making a sulpho-aluminous and/or ferro-aluminous cement, resulting cement, and installation therefor |
FR2825086A1 (en) * | 2001-05-23 | 2002-11-29 | Carrieres Du Boulonnais | PROCESS FOR THE MANUFACTURE OF A SULFO-ALUMINOUS AND / OR FERRO-ALUMINOUS CEMENT, CEMENT OBTAINED BY THIS PROCESS, AND INSTALLATION FOR IMPLEMENTING IT |
US6833105B2 (en) | 2001-05-23 | 2004-12-21 | Carrieres Du Boulonnais | Method for making aluminate cement |
Also Published As
Publication number | Publication date |
---|---|
FR2311763B1 (en) | 1977-12-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |