GB932387A - Carbon articles - Google Patents

Carbon articles

Info

Publication number
GB932387A
GB932387A GB249359A GB249359A GB932387A GB 932387 A GB932387 A GB 932387A GB 249359 A GB249359 A GB 249359A GB 249359 A GB249359 A GB 249359A GB 932387 A GB932387 A GB 932387A
Authority
GB
United Kingdom
Prior art keywords
article
stage
furfuryl alcohol
vapour
permeability
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
GB249359A
Inventor
Robert Lewis Bickerdike
Anthony Reginald George Brown
William Johnson
William Watt
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB249359A priority Critical patent/GB932387A/en
Priority to FR816333A priority patent/FR1245974A/en
Publication of GB932387A publication Critical patent/GB932387A/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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/521—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained by impregnation of carbon products with a carbonisable material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The permeability of a porous carbon article is reduced by depositing carbon in the pores of the article from furfuryl alcohol, in one stage, and from a gaseous or vaporous hydrocarbon, e.g. benzene, in another stage, the stages being carried out in either order. In the first mentioned stage, which may be in accordance with Specification 901,847, the article is impregnated with furfuryl alcohol which is then successively polymerized and carbonized. In the second mentioned stage, which may be in accordance with Specification 881,404, the article is heated in a moving stream of a hydrocarbon gas or vapour at a steady temperature between 500 DEG and 1500 DEG C. at atmospheric or sub-atmospheric pressure, the flow rate and partial pressure of the gas or vapour being controlled so as to prevent deposition of soot on the article. The furfuryl alcohol may contain acetone and a wetting agent. Phosphoric acid may be introduced into the article during the first mentioned stage. The permeability may be reduced to 1 X 10-8 cm.2/sec. Examples are given. Specification 861,376 also is referred to.
GB249359A 1959-01-22 1959-01-22 Carbon articles Expired GB932387A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB249359A GB932387A (en) 1959-01-22 1959-01-22 Carbon articles
FR816333A FR1245974A (en) 1959-01-22 1960-01-21 Process for treating porous carbon articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB249359A GB932387A (en) 1959-01-22 1959-01-22 Carbon articles

Publications (1)

Publication Number Publication Date
GB932387A true GB932387A (en) 1963-07-24

Family

ID=9740541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB249359A Expired GB932387A (en) 1959-01-22 1959-01-22 Carbon articles

Country Status (2)

Country Link
FR (1) FR1245974A (en)
GB (1) GB932387A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979329A (en) * 1969-12-12 1976-09-07 Johnson Matthey & Co., Limited Carbon molecular sieve catalyst
US4929404A (en) * 1984-09-25 1990-05-29 Mitsubishi Petrochemical Company Limited Graphitic or carbonaceous moldings and processes for producing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2706033B2 (en) * 1977-02-12 1979-03-22 Sigri Elektrographit Gmbh, 8901 Meitingen Process for increasing the strength of carbon and graphite bodiesi

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979329A (en) * 1969-12-12 1976-09-07 Johnson Matthey & Co., Limited Carbon molecular sieve catalyst
US4929404A (en) * 1984-09-25 1990-05-29 Mitsubishi Petrochemical Company Limited Graphitic or carbonaceous moldings and processes for producing the same

Also Published As

Publication number Publication date
FR1245974A (en) 1960-11-10

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