FR1212156A - Microporous metal membranes and their manufacturing process by selective attack of the constituents of an alloy - Google Patents

Microporous metal membranes and their manufacturing process by selective attack of the constituents of an alloy

Info

Publication number
FR1212156A
FR1212156A FR1212156DA FR1212156A FR 1212156 A FR1212156 A FR 1212156A FR 1212156D A FR1212156D A FR 1212156DA FR 1212156 A FR1212156 A FR 1212156A
Authority
FR
France
Prior art keywords
metals
group
alloy
dissolution
constituents
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
Other languages
French (fr)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of FR1212156A publication Critical patent/FR1212156A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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
    • B01D53/22—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 by diffusion
    • B01D53/228—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 by diffusion characterised by specific membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0044—Inorganic membrane manufacture by chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0039—Inorganic membrane manufacture
    • B01D67/0053—Inorganic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0058—Inorganic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/02—Inorganic material
    • B01D71/022—Metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1134—Inorganic fillers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/08—Alloys with open or closed pores
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/50—Control of the membrane preparation process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Electrochemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

Microporous membranes are produced by forming a foil from an alloy consisting of one or more metals of a first group and at least 40 atomic per cent of one or more metals from a less noble group, and chemically dissolving out one constituent of the alloy by attacking it with a solution to which has been added an oxidation-reduction reagent having a redox potential greater than the dissolution potentials in the alloyed state of the metals of the second group. The redox potential may be less than the dissolution potentials of the metals of the first group, in which case the dissolution is either allowed to go to completion or stopped when sufficient solute has been removed or it may be greater than the said dissolution potentials, when the reaction is stopped after the appropriate amount of the second group metals has been removed. This point may be determined by weighing the membrane or by analysis of the solution.
FR1212156D 1958-08-30 1958-08-30 Microporous metal membranes and their manufacturing process by selective attack of the constituents of an alloy Expired FR1212156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR773487 1958-08-30

Publications (1)

Publication Number Publication Date
FR1212156A true FR1212156A (en) 1960-03-22

Family

ID=8707367

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1212156D Expired FR1212156A (en) 1958-08-30 1958-08-30 Microporous metal membranes and their manufacturing process by selective attack of the constituents of an alloy

Country Status (6)

Country Link
BE (1) BE582086A (en)
CH (1) CH412352A (en)
DE (1) DE1214971B (en)
FR (1) FR1212156A (en)
GB (1) GB927285A (en)
LU (1) LU37570A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383758B (en) * 1985-12-23 1987-08-25 Plansee Metallwerk METHOD FOR PRODUCING A SPUTTER TARGET
CN103157389B (en) * 2011-12-14 2016-03-02 南京髙谦功能材料科技有限公司 A kind of preparation method of asymmetric porous metal film
CN112475293A (en) * 2020-12-08 2021-03-12 中北大学 Preparation method of micro-nano lattice hole ultrathin stainless steel filter plate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE86459C (en) *
US2837424A (en) * 1953-06-05 1958-06-03 Ca Nat Research Council Process for preparing a catalyst of a silver-base alloy

Also Published As

Publication number Publication date
GB927285A (en) 1963-05-29
BE582086A (en) 1960-02-29
DE1214971B (en) 1966-04-21
CH412352A (en) 1966-04-30
LU37570A1 (en) 1961-02-22

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