NO781608L - Fremgangsmaate til hydrometallurgisk behandling for fjerning av forurensninger fra en opploesning som inneholder opploeste metaller - Google Patents

Fremgangsmaate til hydrometallurgisk behandling for fjerning av forurensninger fra en opploesning som inneholder opploeste metaller

Info

Publication number: NO781608L
Authority: NO; Norway
Prior art keywords: silicate; solution; residue; value; stated
Prior art date: 1977-05-09

Application number

NO781608A

Other languages

English (en)

Norwegian (no)

Inventor

Serge Rysman De Lockerente

Jacques De Laever

Original Assignee

Hollux Sa

Priority date (The priority date 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 date listed.)

1977-05-09

Filing date

1978-05-08

Publication date

1978-11-10

1977-05-09 Priority claimed from LU77307A external-priority patent/LU77307A1/xx

1978-05-08 Application filed by Hollux Sa filed Critical Hollux Sa

1978-11-10 Publication of NO781608L publication Critical patent/NO781608L/no

Links

238000000034 method Methods 0.000 title claims description 43
229910052751 metal Inorganic materials 0.000 title claims description 11
239000002184 metal Substances 0.000 title claims description 11
150000002739 metals Chemical class 0.000 title claims description 9
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 63
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 42
239000011701 zinc Substances 0.000 claims description 37
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 31
229910052725 zinc Inorganic materials 0.000 claims description 31
229910052742 iron Inorganic materials 0.000 claims description 28
238000001556 precipitation Methods 0.000 claims description 20
239000002253 acid Substances 0.000 claims description 18
239000000356 contaminant Substances 0.000 claims description 14
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 14
235000012239 silicon dioxide Nutrition 0.000 claims description 14
239000007787 solid Substances 0.000 claims description 14
239000002893 slag Substances 0.000 claims description 12
NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 9
235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
235000011941 Tilia x europaea Nutrition 0.000 claims description 8
239000003344 environmental pollutant Substances 0.000 claims description 8
239000004571 lime Substances 0.000 claims description 8
231100000719 pollutant Toxicity 0.000 claims description 8
239000011686 zinc sulphate Substances 0.000 claims description 7
235000009529 zinc sulphate Nutrition 0.000 claims description 7
XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
229910052784 alkaline earth metal Inorganic materials 0.000 claims description 6
150000001342 alkaline earth metals Chemical class 0.000 claims description 6
239000004568 cement Substances 0.000 claims description 6
238000000605 extraction Methods 0.000 claims description 6
239000012535 impurity Substances 0.000 claims description 6
238000006386 neutralization reaction Methods 0.000 claims description 5
229910052915 alkaline earth metal silicate Inorganic materials 0.000 claims description 4
239000011575 calcium Substances 0.000 claims description 4
-1 of calcium Chemical class 0.000 claims description 4
239000002244 precipitate Substances 0.000 claims description 4
239000004566 building material Substances 0.000 claims description 3
239000000945 filler Substances 0.000 claims description 3
238000011065 in-situ storage Methods 0.000 claims description 3
239000011787 zinc oxide Substances 0.000 claims description 3
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical group [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
229910052791 calcium Inorganic materials 0.000 claims description 2
239000004567 concrete Substances 0.000 claims description 2
229960001763 zinc sulfate Drugs 0.000 claims description 2
229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
230000002378 acidificating effect Effects 0.000 claims 1
239000003795 chemical substances by application Substances 0.000 claims 1
230000003472 neutralizing effect Effects 0.000 claims 1
239000000243 solution Substances 0.000 description 46
239000011777 magnesium Substances 0.000 description 13
238000005868 electrolysis reaction Methods 0.000 description 11
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 7
238000006243 chemical reaction Methods 0.000 description 7
239000000706 filtrate Substances 0.000 description 7
229910052749 magnesium Inorganic materials 0.000 description 7
239000004110 Zinc silicate Substances 0.000 description 6
238000010908 decantation Methods 0.000 description 6
ZOIVSVWBENBHNT-UHFFFAOYSA-N dizinc;silicate Chemical compound [Zn+2].[Zn+2].[O-][Si]([O-])([O-])[O-] ZOIVSVWBENBHNT-UHFFFAOYSA-N 0.000 description 6
238000004519 manufacturing process Methods 0.000 description 6
239000000203 mixture Substances 0.000 description 6
230000007935 neutral effect Effects 0.000 description 6
239000000047 product Substances 0.000 description 6
235000019352 zinc silicate Nutrition 0.000 description 6
150000004760 silicates Chemical class 0.000 description 5
239000000126 substance Substances 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
239000003929 acidic solution Substances 0.000 description 4
238000001914 filtration Methods 0.000 description 4
238000000746 purification Methods 0.000 description 4
238000005406 washing Methods 0.000 description 4
229910000859 α-Fe Inorganic materials 0.000 description 4
239000007795 chemical reaction product Substances 0.000 description 3
239000003153 chemical reaction reagent Substances 0.000 description 3
238000004140 cleaning Methods 0.000 description 3
238000004090 dissolution Methods 0.000 description 3
239000012065 filter cake Substances 0.000 description 3
150000002500 ions Chemical class 0.000 description 3
239000007800 oxidant agent Substances 0.000 description 3
230000003647 oxidation Effects 0.000 description 3
238000007254 oxidation reaction Methods 0.000 description 3
230000001590 oxidative effect Effects 0.000 description 3
239000007858 starting material Substances 0.000 description 3
229910052782 aluminium Inorganic materials 0.000 description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
229910052918 calcium silicate Inorganic materials 0.000 description 2
239000000378 calcium silicate Substances 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
OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
230000000694 effects Effects 0.000 description 2
238000009854 hydrometallurgy Methods 0.000 description 2
238000009533 lab test Methods 0.000 description 2
238000002386 leaching Methods 0.000 description 2
239000010970 precious metal Substances 0.000 description 2
239000011541 reaction mixture Substances 0.000 description 2
230000009257 reactivity Effects 0.000 description 2
238000010992 reflux Methods 0.000 description 2
230000001105 regulatory effect Effects 0.000 description 2
238000000926 separation method Methods 0.000 description 2
229910052710 silicon Inorganic materials 0.000 description 2
239000010703 silicon Substances 0.000 description 2
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
YAIQCYZCSGLAAN-UHFFFAOYSA-N [Si+4].[O-2].[Al+3] Chemical compound [Si+4].[O-2].[Al+3] YAIQCYZCSGLAAN-UHFFFAOYSA-N 0.000 description 1
239000004411 aluminium Substances 0.000 description 1
229910052787 antimony Inorganic materials 0.000 description 1
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
229910052785 arsenic Inorganic materials 0.000 description 1
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
238000007664 blowing Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000010790 dilution Methods 0.000 description 1
239000012895 dilution Substances 0.000 description 1
238000003912 environmental pollution Methods 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
230000003721 exogen phase Effects 0.000 description 1
229910052732 germanium Inorganic materials 0.000 description 1
GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
229910052598 goethite Inorganic materials 0.000 description 1
229910052602 gypsum Inorganic materials 0.000 description 1
239000010440 gypsum Substances 0.000 description 1
229910052595 hematite Inorganic materials 0.000 description 1
239000011019 hematite Substances 0.000 description 1
AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 1
150000002505 iron Chemical class 0.000 description 1
LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
229910052935 jarosite Inorganic materials 0.000 description 1
239000007788 liquid Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
229910021645 metal ion Inorganic materials 0.000 description 1
229910052914 metal silicate Inorganic materials 0.000 description 1
231100000252 nontoxic Toxicity 0.000 description 1
230000003000 nontoxic effect Effects 0.000 description 1
TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
230000035484 reaction time Effects 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000003860 storage Methods 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
229910052718 tin Inorganic materials 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0481—Other specific industrial waste materials not provided for elsewhere in C04B18/00
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc ores
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
- C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Organic Chemistry (AREA)
Environmental & Geological Engineering (AREA)
Ceramic Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Materials Engineering (AREA)
Hydrology & Water Resources (AREA)
General Life Sciences & Earth Sciences (AREA)
Manufacturing & Machinery (AREA)
Water Supply & Treatment (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Geology (AREA)
Structural Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Civil Engineering (AREA)
General Chemical & Material Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Manufacture And Refinement Of Metals (AREA)
Electrolytic Production Of Metals (AREA)
Removal Of Specific Substances (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)

NO781608A 1977-05-09 1978-05-08 Fremgangsmaate til hydrometallurgisk behandling for fjerning av forurensninger fra en opploesning som inneholder opploeste metaller NO781608L (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
LU77307A LU77307A1 (fr)	1977-05-09	1977-05-09
BE187262A BE866554A (fr)	1977-05-09	1978-04-28	Procede de traitement hydrometallurgique pour l'elimination d'impuretes d'une solution contenant des metaux dissous

Publications (1)

Publication Number	Publication Date
NO781608L true NO781608L (no)	1978-11-10

Family

ID=25650735

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO781608A NO781608L (no)	1977-05-09	1978-05-08	Fremgangsmaate til hydrometallurgisk behandling for fjerning av forurensninger fra en opploesning som inneholder opploeste metaller

Country Status (17)

Country	Link
JP (1)	JPS5413416A (fr)
AR (1)	AR219748A1 (fr)
AU (1)	AU3591278A (fr)
BE (1)	BE866554A (fr)
BR (1)	BR7802920A (fr)
CA (1)	CA1115024A (fr)
DE (1)	DE2820059A1 (fr)
ES (1)	ES469620A1 (fr)
FI (1)	FI781443A7 (fr)
FR (1)	FR2390504A1 (fr)
GB (1)	GB1597784A (fr)
IE (1)	IE46818B1 (fr)
IT (1)	IT7823057A0 (fr)
NL (1)	NL7804962A (fr)
NO (1)	NO781608L (fr)
PL (1)	PL206693A1 (fr)
PT (1)	PT68014B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
ZA807812B (en) *	1979-12-21	1981-12-30	Stablex Ag	Treatment of hazardous waste
NL8402035A (nl) *	1984-06-27	1986-01-16	Rijksuniversiteit Utrecht P A	Neutralisatie van afvalzwavelzuur met behulp van olivijn.
WO2014176188A1 (fr) *	2013-04-23	2014-10-30	E. I. Du Pont De Nemours And Company	Procédé servant au traitement et au recyclage de fluide de fracturation hydraulique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR464038A (fr) *	1913-09-02	1914-03-11	Shunjiro Araki	Procédé de préparation d'une solution de sulfate de zinc pur à l'aide de minerais de zinc
GB274297A (en) *	1926-08-23	1927-07-21	Royale Hillman Stevens	Improvements in the removal of silica from zinc, copper and vanadium solutions

1978
- 1978-04-28 BE BE187262A patent/BE866554A/fr unknown
- 1978-05-05 IE IE909/78A patent/IE46818B1/en unknown
- 1978-05-05 IT IT7823057A patent/IT7823057A0/it unknown
- 1978-05-08 NO NO781608A patent/NO781608L/no unknown
- 1978-05-08 DE DE19782820059 patent/DE2820059A1/de not_active Withdrawn
- 1978-05-08 PT PT6801478A patent/PT68014B/fr unknown
- 1978-05-08 FR FR7813479A patent/FR2390504A1/fr not_active Withdrawn
- 1978-05-08 FI FI781443A patent/FI781443A7/fi not_active Application Discontinuation
- 1978-05-08 CA CA302,859A patent/CA1115024A/fr not_active Expired
- 1978-05-09 NL NL7804962A patent/NL7804962A/xx not_active Application Discontinuation
- 1978-05-09 AR AR27209878A patent/AR219748A1/es active
- 1978-05-09 BR BR7802920A patent/BR7802920A/pt unknown
- 1978-05-09 JP JP5490878A patent/JPS5413416A/ja active Pending
- 1978-05-09 AU AU35912/78A patent/AU3591278A/en active Pending
- 1978-05-09 GB GB18576/78A patent/GB1597784A/en not_active Expired
- 1978-05-09 ES ES469620A patent/ES469620A1/es not_active Expired
- 1978-05-10 PL PL20669378A patent/PL206693A1/xx unknown

Also Published As

Publication number	Publication date
PT68014A (fr)	1978-06-01
IT7823057A0 (it)	1978-05-05
NL7804962A (nl)	1978-11-13
CA1115024A (fr)	1981-12-29
ES469620A1 (es)	1979-10-01
AR219748A1 (es)	1980-09-15
AU3591278A (en)	1979-11-15
IE780909L (en)	1978-11-09
BE866554A (fr)	1978-08-14
PL206693A1 (pl)	1979-02-12
JPS5413416A (en)	1979-01-31
DE2820059A1 (de)	1978-11-23
PT68014B (fr)	1979-10-22
FI781443A7 (fi)	1978-11-10
GB1597784A (en)	1981-09-09
FR2390504A1 (fr)	1978-12-08
BR7802920A (pt)	1979-01-02
IE46818B1 (en)	1983-10-05

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