ZA701471B - Process for the production of defluorinated cement clinkers from phosphoric acid-by-product-gypsum - Google Patents
Process for the production of defluorinated cement clinkers from phosphoric acid-by-product-gypsumInfo
- Publication number
- ZA701471B ZA701471B ZA701471A ZA701471A ZA701471B ZA 701471 B ZA701471 B ZA 701471B ZA 701471 A ZA701471 A ZA 701471A ZA 701471 A ZA701471 A ZA 701471A ZA 701471 B ZA701471 B ZA 701471B
- Authority
- ZA
- South Africa
- Prior art keywords
- defluorinated
- gypsum
- production
- product
- phosphoric acid
- Prior art date
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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT219069A AT284701B (de) | 1969-03-06 | 1969-03-06 | Verfahren zur Herstellung von fluorarmem Zementklinker aus Phosphorsäureabfallgips |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA701471B true ZA701471B (en) | 1971-10-27 |
Family
ID=3529632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA701471A ZA701471B (en) | 1969-03-06 | 1970-03-04 | Process for the production of defluorinated cement clinkers from phosphoric acid-by-product-gypsum |
Country Status (6)
Country | Link |
---|---|
US (1) | US3652308A (xx) |
AT (1) | AT284701B (xx) |
BR (1) | BR7017255D0 (xx) |
GB (1) | GB1248885A (xx) |
PL (1) | PL80471B1 (xx) |
ZA (1) | ZA701471B (xx) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3222721A1 (de) * | 1982-06-18 | 1983-12-22 | Krupp-Koppers Gmbh, 4300 Essen | Verfahren zum betrieb einer gips-schwefelsaeureanlage |
PL186189B1 (pl) * | 1997-06-23 | 2003-11-28 | Kosicka Dobroslawa | Sposób przetwarzania odpadów fosfogipsowych |
DE102020100249A1 (de) | 2020-01-08 | 2021-07-08 | Thyssenkrupp Ag | Integriertes Verfahren zur kommerziellen und industriellen Verwertung von Kalziumsulfat unter Gewinnung von Seltenen Erden aus der Phosphorsäureproduktion |
DE102020100260A1 (de) | 2020-01-08 | 2021-07-08 | Thyssenkrupp Ag | Integriertes Verfahren zur Herstellung von Schwefelsäureprozess-geeigneter Schwefeldioxidqualität aus Kalziumsulfat/Phosphorgips aus der Phosphorsäureproduktion |
CN111847927A (zh) * | 2020-07-23 | 2020-10-30 | 湖州南浔兴云建材有限公司 | 一种以废弃砌块为主要原料的水泥熟料的制备方法 |
CN113354315B (zh) * | 2021-07-09 | 2022-11-22 | 贵州大学 | 利用磷矿酸不溶渣生产高硅硫铝酸盐水泥的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2252279A (en) * | 1938-07-06 | 1941-08-12 | Walther H Duisberg | Manufacture of sulphur dioxide and portland cement from calcium sulphate and the usual additions containing aluminum silicate |
US2528103A (en) * | 1946-01-07 | 1950-10-31 | Robert M Willson | Method of producing sulfuric acid and hydraulic cement from gypsum |
US2863726A (en) * | 1955-03-31 | 1958-12-09 | Kamlet Jonas | Process for the joint manufacture of portland cement and sulfur |
US3024123A (en) * | 1959-06-03 | 1962-03-06 | Theilacker Helmuth | Process for producing synthetic anhydrite |
US3017246A (en) * | 1960-04-21 | 1962-01-16 | Kamlet Edna Yadven | Process for the joint manufacture of hydrofluoric acid and portland cement clinker |
-
1969
- 1969-03-06 AT AT219069A patent/AT284701B/de not_active IP Right Cessation
-
1970
- 1970-03-02 US US15843A patent/US3652308A/en not_active Expired - Lifetime
- 1970-03-04 PL PL1970139185A patent/PL80471B1/pl unknown
- 1970-03-04 ZA ZA701471A patent/ZA701471B/xx unknown
- 1970-03-05 GB GB00719/70A patent/GB1248885A/en not_active Expired
- 1970-03-05 BR BR217255/70A patent/BR7017255D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
AT284701B (de) | 1970-09-25 |
GB1248885A (en) | 1971-10-06 |
BR7017255D0 (pt) | 1973-04-26 |
US3652308A (en) | 1972-03-28 |
PL80471B1 (xx) | 1975-08-30 |
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