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GB883760A - Improvements in methods of manufacturing porous barriers - Google Patents

Improvements in methods of manufacturing porous barriers

Info

Publication number
GB883760A
GB883760A GB12634/58A GB1263458A GB883760A GB 883760 A GB883760 A GB 883760A GB 12634/58 A GB12634/58 A GB 12634/58A GB 1263458 A GB1263458 A GB 1263458A GB 883760 A GB883760 A GB 883760A
Authority
GB
United Kingdom
Prior art keywords
manufacturing porous
mean radius
porous barriers
methods
aqueous
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
GB12634/58A
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
Publication of GB883760A publication Critical patent/GB883760A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/0038—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by superficial sintering or bonding of particulate matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D59/00—Separation of different isotopes of the same chemical element
    • B01D59/10—Separation by diffusion
    • B01D59/12—Separation by diffusion by diffusion through barriers
    • B01D59/14—Construction of the barrier

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Porous Artificial Stone Or Porous Ceramic Products (AREA)

Abstract

In manufacturing porous barriers, e.g. for use in the isotopic separation of gases, one or more metal oxides, e.g. alumina, titanium dioxide, magnesia, zirconia, are admixed with an organic binder, e.g. terpineol/ceresine admixture, aqueous polyvinyl alcohol solution, aqueous gum tragacanth gel, petroleum jelly, paraffin oil, and the resultant paste shaped, e.g. extruded in to a tube, and then sintered so as just to weld together grains in contact with one another, e.g. the shaped material may be heated for one hour at 1100 DEG to 1300 DEG C. and then quickly cooled. The mean radius of the pores in the barrier preferably ranges from 0,01 to 0,03 microns and will be approximately one-half to three-quarters of the mean radius of the metal oxide grains selected.
GB12634/58A 1957-04-26 1958-04-21 Improvements in methods of manufacturing porous barriers Expired GB883760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR883760X 1957-04-26

Publications (1)

Publication Number Publication Date
GB883760A true GB883760A (en) 1961-12-06

Family

ID=9374626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12634/58A Expired GB883760A (en) 1957-04-26 1958-04-21 Improvements in methods of manufacturing porous barriers

Country Status (1)

Country Link
GB (1) GB883760A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447288A (en) * 1965-08-23 1969-06-03 Prototeck Inc Gas-diffusion assembly including thin hydrogen-permeable impervious foil
FR2380999A1 (en) * 1977-02-16 1978-09-15 Montedison Spa Shaping and sintering porous ceramic oxide products - to obtain controlled porosity in finished articles, esp. for filters, catalyst supports etc.
EP0076781A2 (en) * 1981-10-06 1983-04-13 Schweizerische Aluminium Ag Filter medium in the form of a stable porous body
US4888033A (en) * 1977-04-12 1989-12-19 Commissariat A L'energie Atomique Method of manufacturing permeable mineral membranes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447288A (en) * 1965-08-23 1969-06-03 Prototeck Inc Gas-diffusion assembly including thin hydrogen-permeable impervious foil
FR2380999A1 (en) * 1977-02-16 1978-09-15 Montedison Spa Shaping and sintering porous ceramic oxide products - to obtain controlled porosity in finished articles, esp. for filters, catalyst supports etc.
US4888033A (en) * 1977-04-12 1989-12-19 Commissariat A L'energie Atomique Method of manufacturing permeable mineral membranes
EP0076781A2 (en) * 1981-10-06 1983-04-13 Schweizerische Aluminium Ag Filter medium in the form of a stable porous body
EP0076781A3 (en) * 1981-10-06 1984-04-18 Schweizerische Aluminium Ag Filter medium in the form of a stable porous body

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