KR20160093088A - 인 및 칼슘의 회수 방법 및 상기 회수 방법에 의해 얻어지는 혼합물 - Google Patents
인 및 칼슘의 회수 방법 및 상기 회수 방법에 의해 얻어지는 혼합물 Download PDFInfo
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- KR20160093088A KR20160093088A KR1020167020286A KR20167020286A KR20160093088A KR 20160093088 A KR20160093088 A KR 20160093088A KR 1020167020286 A KR1020167020286 A KR 1020167020286A KR 20167020286 A KR20167020286 A KR 20167020286A KR 20160093088 A KR20160093088 A KR 20160093088A
- Authority
- KR
- South Korea
- Prior art keywords
- phosphorus
- calcium
- carbon dioxide
- aqueous solution
- mixture
- 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.)
- Granted
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- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 157
- 239000011574 phosphorus Substances 0.000 title claims abstract description 157
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 115
- 239000000203 mixture Substances 0.000 title claims abstract description 99
- 239000011575 calcium Substances 0.000 title claims abstract description 97
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910052791 calcium Inorganic materials 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims description 73
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 268
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 134
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 134
- 239000002893 slag Substances 0.000 claims abstract description 124
- 239000007864 aqueous solution Substances 0.000 claims abstract description 121
- 238000009628 steelmaking Methods 0.000 claims abstract description 80
- -1 phosphorus compound Chemical class 0.000 claims abstract description 44
- 229940043430 calcium compound Drugs 0.000 claims abstract description 38
- 150000001674 calcium compounds Chemical class 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims description 55
- 238000007664 blowing Methods 0.000 claims description 50
- 239000003570 air Substances 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 230000001376 precipitating effect Effects 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 9
- 150000003018 phosphorus compounds Chemical class 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 description 42
- 238000011084 recovery Methods 0.000 description 36
- 238000002474 experimental method Methods 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 19
- 239000002244 precipitate Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 230000006837 decompression Effects 0.000 description 13
- 238000003756 stirring Methods 0.000 description 12
- 239000000725 suspension Substances 0.000 description 12
- 235000010216 calcium carbonate Nutrition 0.000 description 10
- 238000010828 elution Methods 0.000 description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000000378 calcium silicate Substances 0.000 description 6
- 229910052918 calcium silicate Inorganic materials 0.000 description 6
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[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 XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- 229910004283 SiO 4 Inorganic materials 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- BVJRIMBTLVPCFB-UHFFFAOYSA-N [Fe+2].[O-2].[Ca+2].[O-2] Chemical compound [Fe+2].[O-2].[Ca+2].[O-2] BVJRIMBTLVPCFB-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 2
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 2
- FUFJGUQYACFECW-UHFFFAOYSA-L calcium hydrogenphosphate Chemical compound [Ca+2].OP([O-])([O-])=O FUFJGUQYACFECW-UHFFFAOYSA-L 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 235000019700 dicalcium phosphate Nutrition 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229910001872 inorganic gas Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- DFGKGUXTPFWHIX-UHFFFAOYSA-N 6-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]acetyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)C1=CC2=C(NC(O2)=O)C=C1 DFGKGUXTPFWHIX-UHFFFAOYSA-N 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- FPWJLQXCGHQXLL-UHFFFAOYSA-N [P].OP(O)(O)=O Chemical compound [P].OP(O)(O)=O FPWJLQXCGHQXLL-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
-
- 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
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/02—Preparation of phosphorus
- C01B25/027—Preparation of phosphorus of yellow phosphorus
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2200/00—Recycling of waste material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
Description
도 2는 본 발명의 다른 실시형태에 따른 인 및 칼슘의 회수 방법의 플로차트이다.
도 3은 실험 5에 있어서의 인 및 칼슘의 회수 방법의 플로차트이다.
성분비율(질량%) | |||||||
Fe | Ca | Si | Mn | Mg | Al | P | |
슬래그 A | 14.0 | 35.1 | 7.1 | 3.7 | 1.6 | 2.3 | 0.8 |
슬래그 B | 14.6 | 34.2 | 6.7 | 4.9 | 2.0 | 0.9 | 2.1 |
슬래그 | 용출방법 | 슬래그량 (kg/100L) |
이산화탄소 제거방법 | 석출물 | |||||||||
가스 취입 (가스 종류) |
감압 | 가열 | 질량 (g/L) |
P 농도 (mass%) |
|||||||||
공기 | N2 | O2 | H2 | Ar | He | ||||||||
실시예1 | A | 이산화탄소 용해수 | 1 | ○ | - | - | - | - | - | - | - | 0.71 | 0.30 |
실시예2 | 3 | ○ | - | - | - | - | - | - | - | 1.79 | 0.43 | ||
실시예3 | 5 | ○ | - | - | - | - | - | - | - | 2.25 | 0.35 | ||
실시예4 | 1 | - | ○ | - | - | - | - | - | - | 0.66 | 0.41 | ||
실시예5 | 3 | - | ○ | - | - | - | - | - | - | 1.38 | 0.39 | ||
실시예6 | 5 | - | ○ | - | - | - | - | - | - | 1.99 | 0.45 | ||
실시예7 | 1 | - | - | ○ | - | - | - | - | - | 0.89 | 0.29 | ||
실시예8 | 1 | - | - | - | ○ | - | - | - | - | 0.70 | 0.38 | ||
실시예9 | 1 | - | - | - | - | ○ | - | - | - | 0.88 | 0.29 | ||
실시예10 | 1 | - | - | - | - | - | ○ | - | - | 0.75 | 0.36 | ||
실시예11 | 1 | - | ○ | - | - | ○ | - | - | - | 0.73 | 0.38 | ||
실시예12 | 1 | - | - | - | - | - | - | ○ | - | 0.29 | 0.69 | ||
실시예13 | 1 | - | - | - | - | - | - | - | ○ | 1.59 | 0.22 | ||
실시예14 | 1 | ○ | - | - | - | - | - | - | ○ | 1.70 | 0.19 | ||
실시예15 | 1 | ○ | - | - | - | - | - | ○ | - | 0.93 | 0.33 | ||
실시예16 | 1 | - | - | - | - | - | - | ○ | ○ | 1.75 | 0.15 | ||
실시예17 | 1 | ○ | - | - | - | - | - | ○ | ○ | 1.40 | 0.20 | ||
실시예18 | B | 1 | ○ | - | - | - | - | - | - | - | 0.79 | 0.67 | |
실시예19 | 1 | - | ○ | - | - | - | - | - | - | 0.86 | 0.70 | ||
실시예20 | 1 | - | - | ○ | - | - | - | - | - | 0.88 | 0.61 | ||
실시예21 | 1 | - | - | - | - | - | - | ○ | - | 0.31 | 1.32 | ||
실시예22 | 1 | - | - | - | - | - | - | - | ○ | 1.92 | 0.41 | ||
비교예1 | A | 물 | 1 | ○ | - | - | - | - | - | - | - | 0.05 | 0.01 |
슬래그 | 슬래그 량 (kg/100L) |
이산화탄소 제거방법 | 석출물 | ||||
이산화탄소 제거시간 | |||||||
0~5분 | 5~30분 | ||||||
질량 (g/L) |
P 농도 (mass%) |
질량 (g/L) |
P 농도 (mass%) |
||||
실시예23 | A | 1 | 공기 취입 | 0.08 | 3.17 | 0.79 | 0.01 |
실시예24 | 3 | 공기 취입 | 0.13 | 5.32 | 1.70 | 0.01 | |
실시예25 | 1 | 질소 취입 | 0.06 | 4.63 | 0.73 | 0.02 | |
실시예26 | 3 | 질소 취입 | 0.11 | 5.11 | 1.45 | 0.01 | |
실시예27 | 1 | 감압 | 0.02 | 9.82 | 0.25 | 0.02 | |
실시예28 | B | 1 | 공기 취입 | 0.07 | 8.85 | 0.66 | 0.02 |
실시예29 | 1 | 질소 취입 | 0.06 | 7.99 | 0.78 | 0.02 |
슬래그 | 슬래그 량 (kg/100L) |
이산화탄소 제거방법 | 석출물 | |||||
가스 취입 (0~5분) |
감압/가열 (5~30분) |
가스 취입 | 감압/가열 | |||||
질량 (g/L) |
P 농도 (mass%) |
질량 (g/L) |
P 농도 (mass%) |
|||||
실시예30 | A | 1 | 공기 취입 | 가열 | 0.07 | 3.84 | 1.66 | 0.01 |
실시예31 | 3 | 공기 취입 | 가열 | 0.12 | 5.58 | 2.29 | 0.01 | |
실시예32 | 1 | 질소 취입 | 감압 | 0.06 | 4.31 | 0.20 | 0.02 | |
실시예33 | 3 | 질소 취입 | 가열 | 0.13 | 5.67 | 2.99 | 0.01 | |
실시예34 | B | 1 | 공기 취입 | 가열 | 0.07 | 8.83 | 1.64 | 0.02 |
이산화탄소 제거방법 |
석출물 | ||||||
이산화탄소 제거시간 | |||||||
공기 취입량 (L/min) |
0~5분 | 5~30분 | |||||
질량 (g/L) |
석출속도 (g/min·L) |
P 농도 (mass%) |
질량 (g/L) |
석출속도 (g/min·L) |
P 농도 (mass%) |
||
실시예35 | 0.20 | 0.07 | 0.014 | 3.34 | 0.70 | 0.028 | 0.01 |
실시예36 | 0.10 | 0.04 | 0.008 | 8.12 | 0.73 | 0.029 | 0.01 |
실시예37 | 0.05 | 0.02 | 0.003 | 14.60 | 0.81 | 0.032 | 0.02 |
이산화탄소 제거 3회 | 공기 취입(25분간) | |||||
질량 (g/L) |
석출속도 (g/min·L) |
P 농도 (mass%) |
질량 (g/L) |
석출속도 (g/min·L) |
P 농도 (mass%) |
|
실시예38 | 0.04 | 0.009 | 7.89 | 0.72 | 0.029 | 0.01 |
Claims (8)
- 제강 슬래그로부터 인 및 칼슘을 회수하는 방법이며,
이산화탄소를 30 ppm 이상 포함한 수용액과, 상기 제강 슬래그를 접촉시키고, 상기 제강 슬래그중의 인 및 칼슘을 상기 수용액에 용출시키는 제1 공정과,
상기 제1 공정 뒤, 상기 수용액으로부터 상기 이산화탄소를 제거하고, 인 화합물 및 칼슘 화합물을 포함한 혼합물을 석출시키는 제2 공정을 가지는,
인 및 칼슘의 회수 방법. - 청구항 1에 있어서,
상기 제2 공정은,
상기 수용액으로부터 상기 이산화탄소의 일부를 제거하고, 상기 혼합물을 석출시키는 제3 공정과,
상기 제3 공정의 뒤에, 상기 수용액으로부터 상기 이산화탄소를 더 제거하고, 상기 혼합물을 석출시키는 제4 공정을 가지고,
상기 제4 공정으로 얻어지는 상기 혼합물에 있어서의 상기 인 화합물의 비율은, 상기 제3 공정으로 얻어지는 상기 혼합물에 있어서의 상기 인 화합물의 비율보다 적은,
인 및 칼슘의 회수 방법. - 청구항 2에 있어서,
상기 제3 공정에 있어서의 상기 혼합물의 석출 속도는, 0.1 g/min·L이하인,
인 및 칼슘의 회수 방법. - 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,
상기 제2 공정에서는, 공기, 질소, 산소, 수소, 아르곤 및 헬륨으로 되어있는 군으로부터 선택되는 1 또는 2이상의 가스를 상기 수용액내에 취입함으로써, 상기 이산화탄소의 제거를 행하는,
인 및 칼슘의 회수 방법. - 청구항 4에 있어서,
상기 제3 공정에서는, 상기 가스의 상기 수용액내로의 취입을 단속적으로 행하는, 인 및 칼슘의 회수 방법. - 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,
상기 제2 공정에서는, 상기 수용액을 감압함으로써, 상기 이산화탄소의 제거를 행하는, 인 및 칼슘의 회수 방법. - 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,
상기 제2 공정에서는, 상기 수용액을 가열함으로써, 상기 이산화탄소의 제거를 행하는, 인 및 칼슘의 회수 방법. - 청구항 1 내지 청구항 7 중 어느 한 항에 기재한 인 및 칼슘의 회수 방법에 의해 얻어지는 혼합물이며,
인 화합물 및 칼슘 화합물을 포함하고,
인을 원자 환산으로 1 질량%이상 함유하는,
혼합물.
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CA (1) | CA2937214C (ko) |
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JP6263144B2 (ja) * | 2015-03-23 | 2018-01-17 | 日新製鋼株式会社 | 製鋼スラグからカルシウムを含有する固体成分を回収する方法、および回収された固体成分 |
JP6593084B2 (ja) * | 2015-10-13 | 2019-10-23 | 日本製鉄株式会社 | 鉄鋼スラグからのリン酸塩の回収方法 |
CN106180121B (zh) * | 2016-07-06 | 2018-09-04 | 洪昆喨 | 一种转炉石废料的处理方法 |
JP6794842B2 (ja) * | 2017-01-18 | 2020-12-02 | 日本製鉄株式会社 | 製鋼スラグからカルシウムを溶出させる方法、および製鋼スラグからカルシウムを回収する方法 |
CN110872105A (zh) * | 2018-08-31 | 2020-03-10 | 贵州芭田生态工程有限公司 | 一种高效浸取磷矿中钙和镁离子的方法 |
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CN115925291B (zh) * | 2022-11-19 | 2024-03-12 | 济南大学 | 一种高效利用磷石膏的低钙多元水泥熟料及其制备方法 |
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CA2937214A1 (en) | 2015-08-06 |
US9783418B2 (en) | 2017-10-10 |
RU2618004C1 (ru) | 2017-05-02 |
CN105980326A (zh) | 2016-09-28 |
EP3090991A1 (en) | 2016-11-09 |
CN105980326B (zh) | 2018-05-11 |
ES2718606T3 (es) | 2019-07-03 |
US20160347615A1 (en) | 2016-12-01 |
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KR101815160B1 (ko) | 2018-01-04 |
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