CA955035A - Treatment process for removal of metals and treating agent therefor - Google Patents

Treatment process for removal of metals and treating agent therefor

Info

Publication number
CA955035A
CA955035A CA101,966A CA101966A CA955035A CA 955035 A CA955035 A CA 955035A CA 101966 A CA101966 A CA 101966A CA 955035 A CA955035 A CA 955035A
Authority
CA
Canada
Prior art keywords
metals
removal
treatment process
treating agent
agent therefor
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.)
Expired
Application number
CA101,966A
Other versions
CA101966S (en
Inventor
Noriyuki Yokota
Hiroshi Takatomi
Yoshiro Ito
Shingo Tokuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Soda Co Ltd
Original Assignee
Osaka Soda Co Ltd
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.)
Filing date
Publication date
Priority claimed from JP45017353A external-priority patent/JPS4918937B1/ja
Priority claimed from JP3141270A external-priority patent/JPS4819793B1/ja
Priority claimed from JP6939870A external-priority patent/JPS5116916B1/ja
Application filed by Osaka Soda Co Ltd filed Critical Osaka Soda Co Ltd
Application granted granted Critical
Publication of CA955035A publication Critical patent/CA955035A/en
Expired legal-status Critical Current

Links

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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • 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
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/64—Heavy metals or compounds thereof, e.g. mercury
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/165—Natural alumino-silicates, e.g. zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/3092—Packing of a container, e.g. packing a cartridge or column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3251—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising at least two different types of heteroatoms selected from nitrogen, oxygen or sulphur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3253—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising a cyclic structure not containing any of the heteroatoms nitrogen, oxygen or sulfur, e.g. aromatic structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3255—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising a cyclic structure containing at least one of the heteroatoms nitrogen, oxygen or sulfur, e.g. heterocyclic or heteroaromatic structures
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
    • 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
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/58—Use in a single column
    • 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
CA101,966A 1970-02-05 1971-01-04 Treatment process for removal of metals and treating agent therefor Expired CA955035A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP1014670 1970-02-05
JP1735470 1970-02-26
JP45017353A JPS4918937B1 (en) 1970-02-26 1970-02-26
JP3141270A JPS4819793B1 (en) 1970-04-13 1970-04-13
JP6939870A JPS5116916B1 (en) 1970-08-07 1970-08-07

Publications (1)

Publication Number Publication Date
CA955035A true CA955035A (en) 1974-09-24

Family

ID=27519146

Family Applications (1)

Application Number Title Priority Date Filing Date
CA101,966A Expired CA955035A (en) 1970-02-05 1971-01-04 Treatment process for removal of metals and treating agent therefor

Country Status (6)

Country Link
CA (1) CA955035A (en)
DE (1) DE2105515C3 (en)
FR (1) FR2080451A5 (en)
GB (1) GB1336241A (en)
NL (1) NL158229B (en)
NO (1) NO129384B (en)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE349946B (en) * 1971-02-09 1972-10-16 Billingsfors Langed Ab
JPS5639358B2 (en) * 1973-01-30 1981-09-12
GB1482930A (en) * 1974-05-21 1977-08-17 Laporte Industries Ltd Removing metal ions from solution
NL7610396A (en) * 1976-09-17 1978-03-21 Akzo Nv PROCEDURE FOR DECLORATING AN ANATERY SOLUTION.
NO140408C (en) * 1977-09-19 1979-08-29 Johannes Dale PROCEDURE FOR TOTAL OR SELECTIVE REMOVAL OF SALTS FROM AQUATIC SOLUTION
JPS5750697A (en) * 1980-09-12 1982-03-25 Hitachi Ltd Method of treating radioactive liquid
EP0058468A1 (en) * 1981-02-06 1982-08-25 LONDON & SCANDINAVIAN METALLURGICAL CO LIMITED Selective extraction agents
JPS57144080A (en) * 1981-02-27 1982-09-06 Hitachi Ltd Method and device for purification of liquid using oxine-stuck active carbon
US4594158A (en) * 1981-09-03 1986-06-10 Rohm And Haas Filter aid materials bearing anion exchange resins
GB2117752A (en) * 1982-03-29 1983-10-19 Secr Defence Metal ion extraction process
AU542415B2 (en) * 1982-07-29 1985-02-21 Occidental Chemical Corp. Purifying trivalent chromium electroplating baths with dialkyl dithiocarbamates
US4659512A (en) * 1983-12-21 1987-04-21 Pedro B. Macedo Fixation of dissolved metal species with a complexing agent
DE3347165A1 (en) * 1983-12-27 1985-07-04 Skw Trostberg Ag, 8223 Trostberg METHOD FOR EXTRACTION OF PRECIOUS METALS
DE3531355A1 (en) * 1985-09-03 1987-03-12 Hoechst Ag TECHNETIUM 99M GENERATOR, ITS PRODUCTION AND USE
DE3604063A1 (en) * 1986-02-08 1987-08-13 Hoelter Heinz Gas purification downstream of waste incineration plants
US4814007A (en) * 1986-01-16 1989-03-21 Henkel Corporation Recovery of precious metals
DE3702306A1 (en) * 1987-01-27 1988-08-04 Hoelter Heinz Process for separating off heavy metals from the exhaust gases of furnaces
DE3703922A1 (en) * 1987-02-09 1988-08-18 Sonnenschein Accumulatoren METHOD FOR REMOVING HEAVY METALS FROM BOATS
FR2740361B1 (en) * 1995-10-31 1997-12-26 Rhone Poulenc Chimie HEAVY METAL REMOVAL AGENT COMPRISING A SULFUR COMPOUND
WO2006048746A2 (en) * 2004-11-02 2006-05-11 Pfizer Inc. Methods for the removal of heavy metals
GB0816378D0 (en) * 2008-09-08 2008-10-15 Johnson Matthey Plc Adsorbents
GB0816379D0 (en) 2008-09-08 2008-10-15 Johnson Matthey Plc Adsorbents
WO2011162836A1 (en) * 2010-02-17 2011-12-29 Abs Materials, Inc Method for extracting a metal particulate from an aqueous solution using a sol-gel derived sorbent
US8496739B2 (en) * 2010-08-30 2013-07-30 Corning Incorporated Organic antioxidant based filtration apparatus and method
US20130330257A1 (en) 2012-06-11 2013-12-12 Calgon Carbon Corporation Sorbents for removal of mercury
US20140145111A1 (en) * 2012-11-26 2014-05-29 Ecolab Usa Inc. Control of mercury emissions
CN105378122A (en) 2013-06-19 2016-03-02 卡尔冈碳素公司 Methods for mitigating the leaching of heavy metals from activated carbon
FR3041272B1 (en) * 2015-09-17 2019-06-14 Arkema France THIOL ETHER STRUCTURE FLOTATION AGENT
MX2019009019A (en) 2017-01-31 2019-11-12 Calgon Carbon Corp Sorbent devices.
US11697580B2 (en) 2018-08-01 2023-07-11 Calgon Carbon Corporation Apparatus for hydrocarbon vapor recovery
US11703016B2 (en) 2018-08-02 2023-07-18 Calgon Carbon Corporation Sorbent devices
WO2020028839A1 (en) 2018-08-02 2020-02-06 Calgon Carbon Corporation Sorbent devices
US11911743B2 (en) 2019-04-03 2024-02-27 Calgon Carbon Corporation Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use
CN111545167B (en) * 2020-04-13 2021-11-05 南昌航空大学 Method for preparing silver ion selective adsorbent by using pasture
CA3189498A1 (en) 2020-08-31 2022-03-03 Jason P. Mazzoccoli Copper and nitrogen treated sorbent and method for making same
CN112934204A (en) * 2021-02-23 2021-06-11 上海交通大学 Heavy metal mercury adsorbent and preparation method thereof
CN113019325B (en) * 2021-03-15 2021-10-08 扬州工业职业技术学院 Magnetic adsorption material and preparation method thereof
CN114534694A (en) * 2022-03-07 2022-05-27 万华化学集团股份有限公司 Hydroxyquinoline filler and preparation method and application thereof

Also Published As

Publication number Publication date
GB1336241A (en) 1973-11-07
FR2080451A5 (en) 1971-11-12
NL158229B (en) 1978-10-16
DE2105515B2 (en) 1978-01-19
NO129384B (en) 1974-04-08
DE2105515C3 (en) 1978-09-21
NL7101581A (en) 1971-08-09
DE2105515A1 (en) 1971-09-30

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