JPH08503879A - プロセス残留物からの金属有価物の回収 - Google Patents
プロセス残留物からの金属有価物の回収Info
- Publication number
- JPH08503879A JPH08503879A JP50356394A JP50356394A JPH08503879A JP H08503879 A JPH08503879 A JP H08503879A JP 50356394 A JP50356394 A JP 50356394A JP 50356394 A JP50356394 A JP 50356394A JP H08503879 A JPH08503879 A JP H08503879A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- uranium
- liquid phase
- organic
- tantalum
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 title claims abstract description 42
- 238000011084 recovery Methods 0.000 title claims description 14
- 150000002739 metals Chemical class 0.000 title claims description 12
- 239000010909 process residue Substances 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 70
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 62
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229910052770 Uranium Inorganic materials 0.000 claims abstract description 60
- 239000007791 liquid phase Substances 0.000 claims abstract description 45
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 43
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 43
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 239000008346 aqueous phase Substances 0.000 claims abstract description 15
- 239000007790 solid phase Substances 0.000 claims abstract description 14
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 12
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 12
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 8
- 229910001512 metal fluoride Inorganic materials 0.000 claims abstract description 8
- 238000010411 cooking Methods 0.000 claims abstract description 7
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000007787 solid Substances 0.000 claims description 27
- 239000012071 phase Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 17
- 229910052758 niobium Inorganic materials 0.000 claims description 16
- 239000010955 niobium Substances 0.000 claims description 16
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 16
- 239000012074 organic phase Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 6
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 6
- 239000001099 ammonium carbonate Substances 0.000 claims description 6
- 238000005201 scrubbing Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 4
- 229910052799 carbon Inorganic materials 0.000 claims 4
- 238000004064 recycling Methods 0.000 claims 1
- 238000000638 solvent extraction Methods 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 6
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005342 ion exchange Methods 0.000 abstract description 5
- 238000009283 thermal hydrolysis Methods 0.000 abstract description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000292 calcium oxide Substances 0.000 abstract description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000415 inactivating effect Effects 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 231100001261 hazardous Toxicity 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000002285 radioactive effect Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- ZMBHCYHQLYEYDV-UHFFFAOYSA-N trioctylphosphine oxide Chemical compound CCCCCCCCP(=O)(CCCCCCCC)CCCCCCCC ZMBHCYHQLYEYDV-UHFFFAOYSA-N 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052776 Thorium Inorganic materials 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 239000002925 low-level radioactive waste Substances 0.000 description 3
- UXDAWVUDZLBBAM-UHFFFAOYSA-N n,n-diethylbenzeneacetamide Chemical compound CCN(CC)C(=O)CC1=CC=CC=C1 UXDAWVUDZLBBAM-UHFFFAOYSA-N 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000010808 liquid waste Substances 0.000 description 2
- 229910000484 niobium oxide Inorganic materials 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 229910001936 tantalum oxide Inorganic materials 0.000 description 2
- -1 uranium and thorium Chemical class 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- WZECUPJJEIXUKY-UHFFFAOYSA-N [O-2].[O-2].[O-2].[U+6] Chemical compound [O-2].[O-2].[O-2].[U+6] WZECUPJJEIXUKY-UHFFFAOYSA-N 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
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000000622 liquid--liquid extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- YRGLXIVYESZPLQ-UHFFFAOYSA-I tantalum pentafluoride Chemical compound F[Ta](F)(F)(F)F YRGLXIVYESZPLQ-UHFFFAOYSA-I 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229910000439 uranium oxide Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0252—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes treatment or purification of solutions or of liquors or of slurries
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G33/00—Compounds of niobium
- C01G33/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G35/00—Compounds of tantalum
- C01G35/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/24—Obtaining niobium or tantalum
-
- 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
- C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
- C22B60/02—Obtaining thorium, uranium, or other actinides
- C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
- C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
- C22B60/0221—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching
- C22B60/0226—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using acidic solutions or liquors
- C22B60/0234—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using acidic solutions or liquors sulfurated ion as active agent
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Extraction Or Liquid Replacement (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.少なくともタンタルと金属フッ化物を含む源物質から金属有価物を回収す る方法であって、次の過程を含んでなる方法: (a)硫酸中で源物質を蒸解してスラリーを形成し、 (b)スラリーを分離し、タンタルと固体相を含む少なくとも1種の第1の水 系液体相を形成し、 (c)第1の水系液体相と、タンタルを抽出するに適切な水不混和性の有機系 液体抽出剤とを接触させ、タンタル有価物を含む第1の有機系液体相と第2の水 系液体相を形成し、そして (d)第1の有機系水系相からタンタル有価物を回収する。 2.少なくともニオブと金属フッ化物を含む源物質から金属有価物を回収する 方法であって、次の過程を含んでなる方法: (a)硫酸中で源物質を蒸解してスラリーを形成し、 (b)スラリーを分離し、ニオブと固体相を含む少なくとも1種の第1の水系 液体相を形成し、 (c)第1の水系液体相と、ニオブを抽出するに適切な水不混和性の有機系液 体抽出剤とを接触させ、ニオブ有価物を含む第1の有機系液体相と第2の水系液 体相を形成し、そして (d)第1の有機系水系相からニオブ有価物を回収する。 3.少なくともタンタルと金属フッ化物を含む源物質から金属有価物を回収す る方法であって、次の過程を含んでなる方法: (a)硫酸中で源物質を蒸解してスラリーを形成し、 (b)タンタルを含む第1の水系液体相と固体相をスラリーから分離し、 (c)第1の水系液体相と、タンタルを抽出するに適切な水不混和性の有機系 液体抽出剤とを接触させ、タンタル有価物を含む第1の有機系液体相と第2の水 系液体相を形成し、 (d)第1の有機系相からタンタル有価物を回収し、 (e)第1の有機系相と水系液体を接触させ、タンタル有価物を含む第3の水 系相を形成し、 (f)水蒸気の存在下で、固体の温度を約外界温度から少なくとも約700℃ まで昇温することによって、分離した固体相を熱加水分解し、ガス状の硫酸、ガ ス状のフッ化水素酸、及び化学的不活性な残留物を生成させる。 4.スラリーを約70℃〜約100℃の温度範囲に維持する請求の範囲第1項 に記載の方法。 5.スラリーを約70℃〜約100℃の温度範囲に5分間以上維持する請求の 範囲第3項に記載の方法。 6.前記源物質が少なくとも1重量%のタンタル又はニオブを含み、次の過程 を含んでなる請求の範囲第4項に記載の方法: (a)水蒸気の存在下で、固体の温度を約外界温度から少なくとも約800℃ まで昇温することによって、分離した固体相を熱加水分解し、ガス状の硫酸、ガ ス状のフッ化水素酸、及び化学的不活性な残留物を生成させ、 (b)硫酸の希薄溶液でガスをスクラビングして硫酸有価物を取り出し、 (c)フッ化水素酸の希薄溶液でガスをスクラビングしてフッ化水素酸有価物 を取り出す。 7.前記第1の水系相が、1リットルにつき約3〜約8グラムのタンタルを含 む請求の範囲第5項に記載の方法。 8.スラリーが、約0.3〜約0.5重量部の硫酸と1重量部の源物質の比で 形成された請求の範囲第6項に記載の方法。 9.前記水不混和性の有機系液体抽出剤がMIBKであり、次の過程を含んで なる請求の範囲第6項に記載の方法: (a)ウラニウムを含む第2の液体相をイオン交換樹脂に接触させて第2の液 体相からウラニウムを除去し、ウラニウム除去相を形成し、 (b)イオン交換樹脂からウラニウム有価物をストリッピングする。 10.前記第3の水系相のタンタル有価物を、水でストリッピングして分離す る請求の範囲第8項に記載の方法。 11.次の過程を含んでなる請求の範囲第9項に記載の方法: (a)ウラニウム除去相に、約5以上のpHレベルを生成するに充分な酸化カ ルシウムを加え、 (b)得られた湿った固体を液体から分離する。 12.源物質がウラニウムを含み、次の過程を含んでなる請求の範囲第3項に 記載の方法: (a)ウラニウムを含む第2の水系液体相をイオン交換樹脂に接触させて第2 の液体相からウラニウムを除去し、ウラニウム除去相を形成し、 (b)イオン交換樹脂からウラニウム有価物をストリッピングする。 13.次の過程を含んでなる請求の範囲第11項に記載の方法: (a)ウラニウム除去相に、約5以上のpHレベルを生成するに充分な酸化カ ルシウムを加え、 (b)得られた湿った固体を液体から分離する。 14.源物質がウラニウムを含み、次の過程を含んでなる請求の範囲第1項に 記載の方法: (a)第2水系液体相に、有機溶媒中に有機ホスフェート抽出剤を含む水不混 和性の抽出剤溶液を接触させ、水系相よりウラニウム有価物の少なくとも大半を 除去し、ウラニウムを除去した水系の液体相と、除去したウラニウムを含む有機 物系相を形成し、 (b)有機物系相からウラニウムをストリッピングする。 15.炭酸水素アンモニウムの水溶液によってイオン交換樹脂からウラニウム をストリッピングする請求の範囲第11項に記載の方法。 16.次の過程を含んでなる請求の範囲第13項に記載の方法: (a)ウラニウム除去相に、約5以上のpHレベルを生成するに充分な酸化カ ルシウムを加え、 (b)得られた湿った固体を液体から分離する。 17.源物質がウラニウムを含み、次の過程を含んでなる請求の範囲第3項に 記載の方法: (a)第2水系液体相に、有機溶媒中に有機ホスフェート抽出剤を含む水不混 和性の抽出剤溶液を接触させ、水系相よりウラニウム有価物の少なくとも大半を 除去し、ウラニウムを除去した水系の液体相と、除去したウラニウムを含む有機 物系相を形成し、 (b)有機物系相からウラニウムをストリッピングする。 18.源物質がウラニウムを含み、次の過程を含んでなる請求の範囲第4項に 記載の方法: (a)第2水系液体相に、有機溶媒中に有機ホスフェート抽出剤を含む水不混 和性の抽出剤溶液を接触させ、水系相よりウラニウム有価物の少なくとも大半を 除去し、ウラニウムを除去した水系の液体相と、除去したウラニウムを含む有機 物系相を形成し、 (b)有機物系相からウラニウムをストリッピングする。 19.次の過程を含んでなる請求の範囲第16項に記載の方法: (a)ウラニウム除去相に、約5以上のpHレベルを生成するに充分な酸化カ ルシウムを加え、 (b)得られた湿った固体を液体から分離する。 20.回収した硫酸を、源物質を蒸解するためにリサイクルする請求の範囲第 17項に記載の方法。 21.スラリーを分離する前に、約70℃〜約80℃の温度範囲に少なくとも 約30分間維持する請求の範囲第18項に記載の方法。 22.ウラニウムのストリッピングの後、有機物系相をリサイクルし、第2の 水系液体相に接触させる請求の範囲第19項に記載の方法。 23.少なくとも1種の金属の金属フッ化物を含む源物質から金属と酸の有価 物を回収する方法であって、次の過程を含んでなる方法: (a)硫酸中で源物質を蒸解してスラリーを形成し、 (b)スラリーから金属有価物を含む第1の水系液体相と固体相を分離し、 (c)金属有価物を抽出するに適する水不混和性の有機系液体抽出剤及び金属 有価物を選択的に除去するイオン交換樹脂から選択された分離剤を用い、第1の 水系液体相から金属有価物を除去し、 (d)分離剤から金属有価物を回収し、 (e)分離した固体相を、約外界温度から少なくとも約800℃まで昇温する ことによって、分離した固体相を熱加水分解し、硫酸、フッ化水素酸、及び化学 的不活性な残留物を生成させ、 (f)ガスを硫酸の希薄溶液でスクラビングして硫酸の有価物を取り出し、 (g)ガスをフッ化水素酸の希薄溶液でスクラビングしてフッ化水素酸の有価 物を取り出す。 24.前記昇温が約800〜1200℃である請求の範囲第23項に記載の方 法。 25.前記化学的不活性な残留物が乾燥重量として源物質の30重量%未満で ある請求の範囲第23項に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/911,435 | 1992-07-10 | ||
| US07/911,435 US5437848A (en) | 1992-07-10 | 1992-07-10 | Recovery of metal values from process residues |
| PCT/US1993/006539 WO1994001190A1 (en) | 1992-07-10 | 1993-07-09 | Recovery of metal values from process residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08503879A true JPH08503879A (ja) | 1996-04-30 |
| JP3576550B2 JP3576550B2 (ja) | 2004-10-13 |
Family
ID=25430231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50356394A Expired - Fee Related JP3576550B2 (ja) | 1992-07-10 | 1993-07-09 | プロセス残留物からの金属有価物の回収 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5437848A (ja) |
| JP (1) | JP3576550B2 (ja) |
| AU (1) | AU676488B2 (ja) |
| BR (1) | BR9306711A (ja) |
| CA (1) | CA2139642A1 (ja) |
| DE (1) | DE4393314T1 (ja) |
| RU (1) | RU2150430C1 (ja) |
| UA (1) | UA39102C2 (ja) |
| WO (1) | WO1994001190A1 (ja) |
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- 1993-07-09 JP JP50356394A patent/JP3576550B2/ja not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002346596A (ja) * | 2001-05-25 | 2002-12-03 | Mitsui Mining & Smelting Co Ltd | タンタル/ニオブを含有する含油スラッジの処理方法およびタンタル/ニオブの回収方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2150430C1 (ru) | 2000-06-10 |
| DE4393314T1 (de) | 1995-05-11 |
| AU676488B2 (en) | 1997-03-13 |
| AU4673693A (en) | 1994-01-31 |
| BR9306711A (pt) | 1998-12-08 |
| WO1994001190A1 (en) | 1994-01-20 |
| RU95105447A (ru) | 1996-12-27 |
| CA2139642A1 (en) | 1994-01-20 |
| JP3576550B2 (ja) | 2004-10-13 |
| US5437848A (en) | 1995-08-01 |
| UA39102C2 (uk) | 2001-06-15 |
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