DE2139334A1 - Sulphuric acid/cement mfr from waste calcium sulphate - - with prevention of fluorine loss by adding lime - Google Patents
Sulphuric acid/cement mfr from waste calcium sulphate - - with prevention of fluorine loss by adding limeInfo
- Publication number
- DE2139334A1 DE2139334A1 DE19712139334 DE2139334A DE2139334A1 DE 2139334 A1 DE2139334 A1 DE 2139334A1 DE 19712139334 DE19712139334 DE 19712139334 DE 2139334 A DE2139334 A DE 2139334A DE 2139334 A1 DE2139334 A1 DE 2139334A1
- Authority
- DE
- Germany
- Prior art keywords
- cement
- lime
- waste
- phosphoric acid
- mfr
- 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.)
- Pending
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title claims abstract description 24
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title claims abstract description 16
- 239000004568 cement Substances 0.000 title claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 9
- 239000004571 lime Substances 0.000 title claims abstract description 9
- 239000002699 waste material Substances 0.000 title claims abstract description 9
- 229910052731 fluorine Inorganic materials 0.000 title claims description 17
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims description 12
- 239000011737 fluorine Substances 0.000 title claims description 12
- 235000011132 calcium sulphate Nutrition 0.000 title claims description 7
- 239000001175 calcium sulphate Substances 0.000 title claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 title abstract 2
- 230000002265 prevention Effects 0.000 title 1
- 239000001117 sulphuric acid Substances 0.000 title 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 44
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 15
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000000292 calcium oxide Substances 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 21
- 235000012054 meals Nutrition 0.000 claims description 20
- 239000010440 gypsum Substances 0.000 claims description 16
- 229910052602 gypsum Inorganic materials 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 235000011007 phosphoric acid Nutrition 0.000 abstract description 22
- 239000000463 material Substances 0.000 abstract description 7
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 6
- 235000010216 calcium carbonate Nutrition 0.000 abstract description 4
- 229910052925 anhydrite Inorganic materials 0.000 abstract 2
- 235000012255 calcium oxide Nutrition 0.000 abstract 2
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 229910019142 PO4 Inorganic materials 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001089 mineralizing effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000184 acid digestion Methods 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 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 |
|---|---|
| DE2139334A1 true DE2139334A1 (en) | 1972-07-13 |
Family
ID=5483273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19712139334 Pending DE2139334A1 (en) | 1970-12-16 | 1971-08-06 | Sulphuric acid/cement mfr from waste calcium sulphate - - with prevention of fluorine loss by adding lime |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT307450B (enrdf_load_stackoverflow) |
| BG (1) | BG19887A1 (enrdf_load_stackoverflow) |
| DE (1) | DE2139334A1 (enrdf_load_stackoverflow) |
| PL (1) | PL72428B1 (enrdf_load_stackoverflow) |
-
1971
- 1971-08-03 AT AT679671A patent/AT307450B/de not_active IP Right Cessation
- 1971-08-06 DE DE19712139334 patent/DE2139334A1/de 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 |
|---|---|
| AT307450B (de) | 1973-04-15 |
| BG19887A1 (enrdf_load_stackoverflow) | 1975-10-30 |
| PL72428B1 (enrdf_load_stackoverflow) | 1974-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHA | Expiration of time for request for examination |