GB1282888A - Heat resistant carbonaceous fibrous material and processes for producing such materials - Google Patents
Heat resistant carbonaceous fibrous material and processes for producing such materialsInfo
- Publication number
- GB1282888A GB1282888A GB3271969A GB3271969A GB1282888A GB 1282888 A GB1282888 A GB 1282888A GB 3271969 A GB3271969 A GB 3271969A GB 3271969 A GB3271969 A GB 3271969A GB 1282888 A GB1282888 A GB 1282888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibre
- fibrous material
- weight
- heavy metal
- carbon
- 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
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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62227—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining fibres
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Fibers (AREA)
- Carbon And Carbon Compounds (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Woven Fabrics (AREA)
Abstract
1282888 Heat-resistant carbonaceous fibrous material MINNESOTA MINING & MFG CO 27 June 1969 [28 June 1968] 32719/69 Heading C1A [Also in Division G6] A carbonaceous fibrous material containing by weight ¢ to 6% of nitrogen, 40-95% of carbon and 1 to 50% of a heavy metal of Groups IVb, Vb or VIb of the Periodic Table which is chemically bound to the carbonized fibre in a non- carbide form but which is capable of reacting with carbon to form a refractory stable carbide, is prepared by impregnating a regenerated cellulose fibre with a solution of a salt or salts of one or more heavy metals, and a water-soluble salt of a strong acid and a nitrogenous base, drying and heating the impregnated fibre in a pyrolysis process to a temperature of at least 700‹ C. but below that at which the heavy metal carbide would form. The pyrolysis may be carried out in either a one-stage process using a non-oxidizing environment, or a two-stage process wherein the fibre is dried and heated for at least one minute at a temperature of at least 200‹ C. in the presence of air so as to cause the fibre to pass through the pyrolytic stage and produce an electrically non-conducting fibre having a carbon content of 50 to 65% by weight and a nitrogen content of at least 1% by weight, each being exclusive of heavy metal, and then, carbonizing this fibre in a non-oxidizing environment. Suitable heavy metals are fissionable actinides, W, U, Ta, Th, Zr and Mo.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74098768A | 1968-06-28 | 1968-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1282888A true GB1282888A (en) | 1972-07-26 |
Family
ID=24978892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3271969A Expired GB1282888A (en) | 1968-06-28 | 1969-06-27 | Heat resistant carbonaceous fibrous material and processes for producing such materials |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH492645A (en) |
| DE (1) | DE1933803A1 (en) |
| GB (1) | GB1282888A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1013520A (en) * | 1971-09-22 | 1977-07-12 | The Carborundum Company | High surface area carbon fibers and production thereof |
-
1969
- 1969-06-27 GB GB3271969A patent/GB1282888A/en not_active Expired
- 1969-06-27 CH CH992669A patent/CH492645A/en not_active IP Right Cessation
- 1969-06-27 DE DE19691933803 patent/DE1933803A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1933803A1 (en) | 1970-01-02 |
| CH492645A (en) | 1970-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |