BE516022A - - Google Patents
Info
- Publication number
- BE516022A BE516022A BE516022DA BE516022A BE 516022 A BE516022 A BE 516022A BE 516022D A BE516022D A BE 516022DA BE 516022 A BE516022 A BE 516022A
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- sulfuric acid
- gypsum
- calcium
- anhydrite
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 96
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 45
- 229910052602 gypsum Inorganic materials 0.000 claims description 43
- 239000010440 gypsum Substances 0.000 claims description 43
- 235000019738 Limestone Nutrition 0.000 claims description 32
- 239000006028 limestone Substances 0.000 claims description 32
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 28
- 229910052925 anhydrite Inorganic materials 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 239000002253 acid Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- 238000006386 neutralization reaction Methods 0.000 claims description 16
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 14
- 235000011132 calcium sulphate Nutrition 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 235000011149 sulphuric acid Nutrition 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 229940043430 calcium compound Drugs 0.000 claims description 7
- 150000001674 calcium compounds Chemical class 0.000 claims description 7
- 239000001175 calcium sulphate Substances 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 2
- 239000002699 waste material Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000002002 slurry Substances 0.000 description 11
- 229910001868 water Inorganic materials 0.000 description 11
- 239000000049 pigment Substances 0.000 description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 9
- 235000010216 calcium carbonate Nutrition 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 7
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 7
- 238000011282 treatment Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000012452 mother liquor Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 239000001038 titanium pigment Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 230000009974 thixotropic effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- CSRQCQGILGEYLR-UHFFFAOYSA-L [O-2].[O-2].[Ca+2].[Ti+4].[O-]S([O-])(=O)=O Chemical compound [O-2].[O-2].[Ca+2].[Ti+4].[O-]S([O-])(=O)=O CSRQCQGILGEYLR-UHFFFAOYSA-L 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- WKPSFPXMYGFAQW-UHFFFAOYSA-N iron;hydrate Chemical class O.[Fe] WKPSFPXMYGFAQW-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 235000020094 liqueur Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE516022A true BE516022A (enrdf_load_stackoverflow) |
Family
ID=153349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE516022D BE516022A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE516022A (enrdf_load_stackoverflow) |
-
0
- BE BE516022D patent/BE516022A/fr unknown
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