AT307450B - PROCESS FOR PREVENTING FLUORINE EVOLUTION IN THE PRODUCTION OF SULFUR ACID AND CEMENT FROM WASTE CALCIUM SULFATE OF PHOSPHORIC ACID PRODUCTION - Google Patents
PROCESS FOR PREVENTING FLUORINE EVOLUTION IN THE PRODUCTION OF SULFUR ACID AND CEMENT FROM WASTE CALCIUM SULFATE OF PHOSPHORIC ACID PRODUCTIONInfo
- Publication number
- AT307450B AT307450B AT679671A AT679671A AT307450B AT 307450 B AT307450 B AT 307450B AT 679671 A AT679671 A AT 679671A AT 679671 A AT679671 A AT 679671A AT 307450 B AT307450 B AT 307450B
- Authority
- AT
- Austria
- Prior art keywords
- production
- cement
- calcium sulfate
- phosphoric acid
- waste calcium
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title 1
- 239000002253 acid Substances 0.000 title 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 title 1
- 239000004568 cement Substances 0.000 title 1
- 229910052731 fluorine Inorganic materials 0.000 title 1
- 239000011737 fluorine Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000011593 sulfur Substances 0.000 title 1
- 229910052717 sulfur Inorganic materials 0.000 title 1
- 239000002699 waste material Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
- C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
-
- 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)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15203270 | 1970-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT307450B true AT307450B (en) | 1973-04-15 |
Family
ID=5483273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT679671A AT307450B (en) | 1970-12-16 | 1971-08-03 | PROCESS FOR PREVENTING FLUORINE EVOLUTION IN THE PRODUCTION OF SULFUR ACID AND CEMENT FROM WASTE CALCIUM SULFATE OF PHOSPHORIC ACID PRODUCTION |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT307450B (en) |
| BG (1) | BG19887A1 (en) |
| DE (1) | DE2139334A1 (en) |
| PL (1) | PL72428B1 (en) |
-
1971
- 1971-08-03 AT AT679671A patent/AT307450B/en not_active IP Right Cessation
- 1971-08-06 DE DE19712139334 patent/DE2139334A1/en active Pending
- 1971-08-19 BG BG1838671A patent/BG19887A1/xx unknown
- 1971-12-15 PL PL15217471A patent/PL72428B1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL72428B1 (en) | 1974-06-29 |
| BG19887A1 (en) | 1975-10-30 |
| DE2139334A1 (en) | 1972-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |