KR100280264B1 - 탈탄슬러지를 이용한 고순도 석고 제조방법 - Google Patents
탈탄슬러지를 이용한 고순도 석고 제조방법 Download PDFInfo
- Publication number
- KR100280264B1 KR100280264B1 KR1019960068748A KR19960068748A KR100280264B1 KR 100280264 B1 KR100280264 B1 KR 100280264B1 KR 1019960068748 A KR1019960068748 A KR 1019960068748A KR 19960068748 A KR19960068748 A KR 19960068748A KR 100280264 B1 KR100280264 B1 KR 100280264B1
- Authority
- KR
- South Korea
- Prior art keywords
- gypsum
- sludge
- slurry
- decarbonated
- purity
- Prior art date
Links
- 239000010440 gypsum Substances 0.000 title claims abstract description 41
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 41
- 239000010802 sludge Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title abstract description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 33
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 11
- 239000013535 sea water Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000006114 decarboxylation reaction Methods 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 12
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- 239000000292 calcium oxide Substances 0.000 description 6
- 235000012255 calcium oxide Nutrition 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Description
Claims (1)
- 해수마그네시아 제조시 발생되는 탈탄산슬러지를 농도가 0.2wt%이상인 구연산(C6H8O7)수용액에 투입한 후 교반하여 슬러리를 제조하는 단계; 상기 슬러리에 황산을 투입한 후 교반하여 석고를 제조하는 단계; 및 상기 제조된 석고를 습식체거름으로 불순물을 제거하여 순도 97.5%이상의 석고를 얻는 단계를 포함하여 구성되는 것을 특징으로 하는 탈탄산 슬러지를 이용한 고순도 석고 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960068748A KR100280264B1 (ko) | 1996-12-20 | 1996-12-20 | 탈탄슬러지를 이용한 고순도 석고 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960068748A KR100280264B1 (ko) | 1996-12-20 | 1996-12-20 | 탈탄슬러지를 이용한 고순도 석고 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980049996A KR19980049996A (ko) | 1998-09-15 |
KR100280264B1 true KR100280264B1 (ko) | 2001-03-02 |
Family
ID=66444079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960068748A KR100280264B1 (ko) | 1996-12-20 | 1996-12-20 | 탈탄슬러지를 이용한 고순도 석고 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100280264B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020044434A (ko) * | 2000-12-06 | 2002-06-15 | 이구택 | 탄재를 혼합한 석회석 슬러지를 이용한 생석회의 제조방법. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960013993A (ko) * | 1994-10-05 | 1996-05-22 | 고다마 슌이찌로우 | 이수(二水)석고의 제조방법 |
-
1996
- 1996-12-20 KR KR1019960068748A patent/KR100280264B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960013993A (ko) * | 1994-10-05 | 1996-05-22 | 고다마 슌이찌로우 | 이수(二水)석고의 제조방법 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020044434A (ko) * | 2000-12-06 | 2002-06-15 | 이구택 | 탄재를 혼합한 석회석 슬러지를 이용한 생석회의 제조방법. |
Also Published As
Publication number | Publication date |
---|---|
KR19980049996A (ko) | 1998-09-15 |
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