ES411218A1 - Procedimiento para la obtencion de anhidrito sintetico. - Google Patents
Procedimiento para la obtencion de anhidrito sintetico.Info
- Publication number
- ES411218A1 ES411218A1 ES411218A ES411218A ES411218A1 ES 411218 A1 ES411218 A1 ES 411218A1 ES 411218 A ES411218 A ES 411218A ES 411218 A ES411218 A ES 411218A ES 411218 A1 ES411218 A1 ES 411218A1
- Authority
- ES
- Spain
- Prior art keywords
- mixture
- obtaining
- calcination
- steam
- synthetic
- 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
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
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
- C04B11/262—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke waste gypsum other than phosphogypsum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/468—Purification of calcium sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Procedimiento para la obtención de anhidríto sintético, a partir de los residuos de calcinación que se forman durante la obtención de fluoruro de hidrógeno por la reacción de espato-flúor con ácido sulfúrico concentrado en un horno caliente, caracterizado porque para la obtención de un anhidrito sintético neumáticamente trasladable, de libre fluidez, se añade un agente neutralizante, por ejemplo, óxido de calcio, hidróxido de calcio o una mezcla de los mismo, a dichos residuos de calcinación después de retirarle del horno y mientras aún se encuentra a temperatura elevada la mezcla caliente se enfría por evaporación agua, vapor de agua o una mezcla de los mismos a una temperatura de 80 a 150ºC y después se moltura dicho residuo de calcinación después de haber retirado el vapor de agua.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2205028A DE2205028C3 (de) | 1972-02-03 | 1972-02-03 | Verfahren zur Herstellung eines pneumatisch förderbaren Anhydrits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES411218A1 true ES411218A1 (es) | 1975-12-01 |
Family
ID=5834895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES411218A Expired ES411218A1 (es) | 1972-02-03 | 1973-02-02 | Procedimiento para la obtencion de anhidrito sintetico. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3834917A (es) |
| JP (1) | JPS5143835B2 (es) |
| BR (1) | BR7300791D0 (es) |
| DD (1) | DD102990A5 (es) |
| DE (1) | DE2205028C3 (es) |
| ES (1) | ES411218A1 (es) |
| FR (1) | FR2170199B1 (es) |
| GB (1) | GB1418402A (es) |
| IT (1) | IT977123B (es) |
| NL (1) | NL7301553A (es) |
| ZA (1) | ZA73757B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2330728B2 (de) * | 1973-06-16 | 1977-08-11 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung eines synthetischen anhydrits einheitlicher qualitaet und dessen verwendung |
| DE2904071B1 (de) * | 1979-02-03 | 1980-07-24 | Knauf Westdeutsche Gips | Verfahren zur Herstellung eines Anhydrit-Gipsgemisches aus feinteiligem synthetischen Anhydrit |
| FR2486928A1 (fr) * | 1980-07-16 | 1982-01-22 | Charbonnages Ste Chimique | Perfectionnement a un procede de fabrication de platre cellulaire |
| DE3239768A1 (de) * | 1982-10-27 | 1984-05-03 | Huels Chemische Werke Ag | Verfahren zur verbesserung der fliess- und foerderfaehigkeit von feuchten calciumsulfat-niederschlaegen |
| DE3827613A1 (de) * | 1988-08-13 | 1990-02-15 | Viktor Dr Ing Gobiet | Binder und trockenmoertel fuer anhydrit-fliessestrich und fliessestrich daraus |
| JP6350985B2 (ja) * | 2014-07-02 | 2018-07-04 | 俊介 田澤 | 地盤安定化薬液用硬化剤および地盤安定化薬液 |
-
1972
- 1972-02-03 DE DE2205028A patent/DE2205028C3/de not_active Expired
-
1973
- 1973-01-26 US US00326755A patent/US3834917A/en not_active Expired - Lifetime
- 1973-02-01 DD DD168610A patent/DD102990A5/xx unknown
- 1973-02-01 IT IT48001/73A patent/IT977123B/it active
- 1973-02-01 BR BR73791A patent/BR7300791D0/pt unknown
- 1973-02-02 NL NL7301553A patent/NL7301553A/xx not_active Application Discontinuation
- 1973-02-02 FR FR7303713A patent/FR2170199B1/fr not_active Expired
- 1973-02-02 GB GB524873A patent/GB1418402A/en not_active Expired
- 1973-02-02 JP JP48012996A patent/JPS5143835B2/ja not_active Expired
- 1973-02-02 ES ES411218A patent/ES411218A1/es not_active Expired
- 1973-02-02 ZA ZA730757A patent/ZA73757B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT977123B (it) | 1974-09-10 |
| DD102990A5 (es) | 1974-01-05 |
| BR7300791D0 (pt) | 1973-09-13 |
| FR2170199B1 (es) | 1976-09-10 |
| NL7301553A (es) | 1973-08-07 |
| US3834917A (en) | 1974-09-10 |
| DE2205028C3 (de) | 1978-08-24 |
| GB1418402A (en) | 1975-12-17 |
| FR2170199A1 (es) | 1973-09-14 |
| DE2205028A1 (de) | 1973-08-09 |
| ZA73757B (en) | 1973-10-31 |
| JPS48103497A (es) | 1973-12-25 |
| JPS5143835B2 (es) | 1976-11-25 |
| DE2205028B2 (de) | 1977-12-08 |
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