JP6825725B2 - リン含有物質からのリンの除去方法 - Google Patents
リン含有物質からのリンの除去方法 Download PDFInfo
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- JP6825725B2 JP6825725B2 JP2019562951A JP2019562951A JP6825725B2 JP 6825725 B2 JP6825725 B2 JP 6825725B2 JP 2019562951 A JP2019562951 A JP 2019562951A JP 2019562951 A JP2019562951 A JP 2019562951A JP 6825725 B2 JP6825725 B2 JP 6825725B2
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- 239000011574 phosphorus Substances 0.000 title claims description 150
- 229910052698 phosphorus Inorganic materials 0.000 title claims description 150
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 146
- 239000000126 substance Substances 0.000 title claims description 52
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 57
- 239000007789 gas Substances 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 44
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 43
- 229910052760 oxygen Inorganic materials 0.000 claims description 43
- 239000001301 oxygen Substances 0.000 claims description 43
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 34
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 34
- 238000011282 treatment Methods 0.000 claims description 31
- 239000002994 raw material Substances 0.000 claims description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims description 27
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000002844 melting Methods 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 13
- 238000003723 Smelting Methods 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- -1 phosphorus nitride Chemical class 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 80
- 229910052742 iron Inorganic materials 0.000 description 39
- 239000011572 manganese Substances 0.000 description 25
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 21
- 229910052748 manganese Inorganic materials 0.000 description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 17
- 239000002893 slag Substances 0.000 description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 229910052799 carbon Inorganic materials 0.000 description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 14
- 238000005121 nitriding Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000009628 steelmaking Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 7
- 235000012255 calcium oxide Nutrition 0.000 description 7
- 235000013980 iron oxide Nutrition 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229960004424 carbon dioxide Drugs 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 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 3
- 239000002245 particle Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910002596 FexO Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004455 differential thermal analysis Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 241000223218 Fusarium Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910018663 Mn O Inorganic materials 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- AOPJVJYWEDDOBI-UHFFFAOYSA-N azanylidynephosphane Chemical compound P#N AOPJVJYWEDDOBI-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical group [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- PYLLWONICXJARP-UHFFFAOYSA-N manganese silicon Chemical compound [Si].[Mn] PYLLWONICXJARP-UHFFFAOYSA-N 0.000 description 1
- VASIZKWUTCETSD-UHFFFAOYSA-N manganese(II) oxide Inorganic materials [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 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 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- C21C1/025—Agents used for dephosphorising or desulfurising
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
- C21C7/0645—Agents used for dephosphorising or desulfurising
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/216—Sintering; Agglomerating in rotary furnaces
-
- 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
- Y02P10/20—Recycling
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
a.前記リン含有物質と前記窒素含有ガスとの反応により、窒化リン(PN)を生成させてこれを除去すること、
b.前記リン含有物質と窒素含有ガスとの反応は、該窒素含有ガス中の窒素分圧PN2および酸素分圧PO2の調整下において行なうこと、
c.前記窒素含有ガス中の窒素分圧PN2(atm)は、下記式(1)の条件を満たすように調整すること、
[式1]
d.前記処理温度T(℃)は、下記式(2)の条件を満たし、前記窒素含有ガス中の酸素分圧PO2(atm)は下記式(3)の条件を満たすように調整すること、
[式2]
ここで、Tmはリン含有物質の融点(℃)である。
[式3]
e.前記窒素含有ガスは、一酸化炭素(CO)を含むこと、
f.前記窒素含有ガス中に一酸化炭素(CO)および二酸化炭素(CO2)を含み、その分圧比PCO/PCO2によって、前記酸素分圧PO2を調整すること、
がより好ましい実施形態になりうるものと考えられる。
・第1の方法は、るつぼ等の容器に固体試料を装入し、対象とするガス雰囲気下において、電気抵抗炉などにより毎分5℃、望ましくは毎分1℃以下で昇温しながら容器内の試料を連続的に観察し、固体試料の粒同士の隙間が消失し、表面に平滑面が生じた温度を融点とする方法である。
・第2の方法は、対象とするガス雰囲気下において、示差熱分析法により毎分5℃、望ましくは毎分1℃以下で昇温して測定した際の、吸熱ピークの極小点の温度を融点とする方法である。ここで、吸熱ピークが複数生じる場合、それぞれの吸熱ピークが生じた温度で測定を止めて、測定試料の外観を観察し、固体試料の粒同士の隙間が消失し、表面に平滑面が生じた温度の中で最も低温の吸熱ピークの極小点の温度を融点とする。
・第3の方法は、電子計算機の熱力学計算ソフトを用い、試料組成を入力して温度を変化させて液相率を計算し、計算液相率が95%を超える温度を融点とする方法である。
(1)固体の還元剤と窒素ガスとを高温で接触させる、
(2)一酸化炭素、水素、炭化水素等の還元性ガスを窒素ガスに混合する、
(3)電圧を印加した固体電解質に窒素ガスを導入して酸素を除去する、
など所定の酸素分圧を得ることができれば、いずれの方法でもよい。
Claims (7)
- 金属製錬用ないし金属精錬用の原料として用いられる固体酸化物であるリン含有物質を、この物質の融解温度(Tm)未満の処理温度T(℃)にて、低酸素分圧の環境で窒素含有ガスと反応させることを特徴とする、リン含有物質からのリンの除去方法。
- 前記リン含有物質と前記窒素含有ガスとの反応により、窒化リン(PN)を生成させてこれを除去することを特徴とする、請求項1に記載のリン含有物質からのリンの除去方法。
- 前記リン含有物質と前記窒素含有ガスとの反応は、該窒素含有ガス中の窒素分圧PN2および酸素分圧PO2の調整下において行なうことを特徴とする、請求項1または2に記載のリン含有物質からのリンの除去方法。
- 前記窒素含有ガスは、一酸化炭素(CO)を含むことを特徴とする、請求項1〜5のいずれか1項に記載のリン含有物質からのリンの除去方法。
- 前記窒素含有ガスは、一酸化炭素(CO)および二酸化炭素(CO2)を含み、その分圧比PCO/PCO2によって、酸素分圧PO2を調整することを特徴とする、請求項1〜6のいずれか1項に記載のリン含有物質からのリンの除去方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017250072 | 2017-12-26 | ||
JP2017250072 | 2017-12-26 | ||
PCT/JP2018/045661 WO2019131128A1 (ja) | 2017-12-26 | 2018-12-12 | リン含有物質からのリンの除去方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2019131128A1 JPWO2019131128A1 (ja) | 2020-02-27 |
JP6825725B2 true JP6825725B2 (ja) | 2021-02-03 |
Family
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Family Applications (1)
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JP2019562951A Active JP6825725B2 (ja) | 2017-12-26 | 2018-12-12 | リン含有物質からのリンの除去方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US11649514B2 (ja) |
EP (1) | EP3733882A4 (ja) |
JP (1) | JP6825725B2 (ja) |
KR (1) | KR102386946B1 (ja) |
CN (1) | CN111356776B (ja) |
AU (1) | AU2018394522B2 (ja) |
BR (1) | BR112020013037B1 (ja) |
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JP7047815B2 (ja) * | 2019-06-25 | 2022-04-05 | Jfeスチール株式会社 | 低リン鋼の製造方法 |
JP7047816B2 (ja) * | 2019-06-25 | 2022-04-05 | Jfeスチール株式会社 | 低リン鋼の製造方法 |
EP3992145A4 (en) * | 2019-06-25 | 2022-08-17 | JFE Steel Corporation | METHOD FOR REMOVING PHOSPHORUS FROM A PHOSPHORUS-CONTAINING SUBSTANCE, METHOD FOR PRODUCING A STARTING MATERIAL FOR METAL Smelting OR A STARTING MATERIAL FOR METAL REFINING, AND METHOD FOR PRODUCING METAL |
JP7047817B2 (ja) * | 2019-06-25 | 2022-04-05 | Jfeスチール株式会社 | 低リン鋼の製造方法 |
CN110423890B (zh) * | 2019-08-28 | 2021-06-18 | 重庆大学 | 一种在酸性提钒溶液中深度除磷的方法 |
CN113718083B (zh) * | 2021-09-06 | 2022-04-05 | 北京科技大学 | 电弧炉高效脱磷控制方法和应用 |
JP7476871B2 (ja) | 2021-11-30 | 2024-05-01 | Jfeスチール株式会社 | 金属の製造方法 |
WO2023100707A1 (ja) | 2021-11-30 | 2023-06-08 | Jfeスチール株式会社 | 金属鉄の製造方法 |
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JPS5675507A (en) | 1979-11-21 | 1981-06-22 | Sumitomo Metal Ind Ltd | Regenerating method of converter slag |
JPS60261501A (ja) | 1984-06-08 | 1985-12-24 | Nippon Touseki Kk | 鉄鉱石からの脱燐法 |
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