US1307738A - Baked carbon article - Google Patents
Baked carbon article Download PDFInfo
- Publication number
- US1307738A US1307738A US1307738DA US1307738A US 1307738 A US1307738 A US 1307738A US 1307738D A US1307738D A US 1307738DA US 1307738 A US1307738 A US 1307738A
- Authority
- US
- United States
- Prior art keywords
- carbon
- binder
- article
- colloidal
- water
- 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 - Lifetime
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 52
- 229910052799 carbon Inorganic materials 0.000 title description 46
- 239000011230 binding agent Substances 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 8
- 239000011295 pitch Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 229910003481 amorphous carbon Inorganic materials 0.000 description 4
- 239000007900 aqueous suspension Substances 0.000 description 4
- 239000011233 carbonaceous binding agent Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 239000011339 hard pitch Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000001066 destructive Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
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
- C04B35/528—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 from carbonaceous particles with or without other non-organic components
- C04B35/532—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 from carbonaceous particles with or without other non-organic components containing a carbonisable binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
Definitions
- Carbon articles such as electrodes, brushes, electrolytic anodes, etc., conslst of granules or particles of'carbon held together by a binder of coke produced from the pitch or tar constituent of the mix when the article is baked.
- the porosity should be reduced to a minimum because the electrolyte and oxidizing agents disintegrate the anode if they are permitted to permeate it. Also, the less free carbon there is in the binder, the more destructive is the action.
- the aim of my invention is therefore to decrease the interstitial spaces in the article and to increase the amount of free carbon in the binder employed.
- the excessively fine or colloidal carbon could be prepared by other processes, but by way of example I have prepared it by add- Specification of Letters Patent.
- the colloidal solution is then mixed with tar and the water evaporated out by heating.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Nanotechnology (AREA)
- Composite Materials (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Ceramic Products (AREA)
Description
UNITED STATES PATENT orrrca.
ARTHUR '1. HIDICKLE'Y, 0F NIAGARA. FALLS, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO NATIONAL CARBON COMPANY, INC., A CORPORATION OF NEW YORK.
BAKED CARBON ARTICLE.
No Drawing.
and a process of making the same.
Carbon articles such as electrodes, brushes, electrolytic anodes, etc., conslst of granules or particles of'carbon held together by a binder of coke produced from the pitch or tar constituent of the mix when the article is baked.
When .carbon articles are baked the pitch or tar is decomposed by the heat, part passing ofl' as volatile hydrocarbons and part remaining behind as coke. Since the article is made from granular material it is impossible to produce an absolutely dense product, the particles being more or less spaced from each other by irregular interstitial spaces. Also the coking of the pitch or tar binder in the process of bakin produces voids or spaces due to the volati ization of a portion of the binder.
For certain uses it is desirable to produce carbon articles as dense as possible, for instance in electrolytic anodes the porosity should be reduced to a minimum because the electrolyte and oxidizing agents disintegrate the anode if they are permitted to permeate it. Also, the less free carbon there is in the binder, the more destructive is the action.
The aim of my invention is therefore to decrease the interstitial spaces in the article and to increase the amount of free carbon in the binder employed.
I accomplish. this result by adding excessively fine or colloidal carbon to the tar or pitch binder when it is in a liquid condition through the application of heat or otherwise.
The excessively fine or colloidal carbon could be prepared by other processes, but by way of example I have prepared it by add- Specification of Letters Patent.
Patented June 24, 1919.
Application filed January 9, 1917. Serial No. 141,478.
ing fine powdered sugar gradually, to concentrated sulfuric acid, the acid being stirred constantly While the sugar is being added. The mixture is allowed to stand quietly at room temperature for about twenty-four hours and then poured into 80 cc. of water. This resulting solution is then filtered and dialyzed through parchment until no trace of sulfuric acid is left, leaving a clear, black solution of colloidal carbon in water.
The colloidal solution is then mixed with tar and the water evaporated out by heating.
In this way the residue insoluble in benzol, or the free carbon, can be materially increased Without appreciably affecting the viscosity of the binder or its binding ower.
When an electrode is made with a inder treated in this way, the increased surface resultlng from the added colloidal material produces increased decomposition of the volatile hydrocarbons, which results not only in a saving of carbon, but augments the apparent density of the baked article, increases its strength and lengthens the life of the article in service.
It of course is not essential that the excessively fine or colloidal carbon be suspended in water solution. Other mediums can be used without departing from the spirit of the invention. It would not be practical to add the water suspension directly to molten hard pitch, as the boilin point of water is too low to permit a good mixture being obtained. However, the water can first be added to tar and after the colloidal particles are thoroughly disseminated therein, the tar can be added to molten hard pitch.
While I have described the invention in regard to articles formed from carbon, it must not be understood that I refer exclusively to amorphous carbon. The invention is applicable to articles produced from carbon generally, such as amorphous carbon, graphite, etc.
Having described my invention, what I claim is:
1. The process of making a carbon article which consists in forming a colloidal suspension of carbon, adding it to a carbona ceous binder, mixing said binder containing the colloidal suspension of carbon with powdered or granulated carbon and baking to decompose and set the binder.
2. Theprocess of forming a carbon article which consists in suspending colloidal carbon in water, adding the water suspension to a liquid carbonaceous binder, heating to drive off the water, mixing said 10 binder.
In testimony whereof, I hereunto aflix my 15 si ature.
ARTHUR T. HINCKLEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1307738A true US1307738A (en) | 1919-06-24 |
Family
ID=3375254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1307738D Expired - Lifetime US1307738A (en) | Baked carbon article |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1307738A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530459A (en) * | 1947-08-26 | 1950-11-21 | Hanna Furnace | Carbon supplying composition |
| US3096218A (en) * | 1958-04-22 | 1963-07-02 | Leesona Corp | Solid-state battery |
| US3419645A (en) * | 1964-10-03 | 1968-12-31 | Hoechst Ag | Process for preparing finely porous, shaped carbon bodies |
-
0
- US US1307738D patent/US1307738A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530459A (en) * | 1947-08-26 | 1950-11-21 | Hanna Furnace | Carbon supplying composition |
| US3096218A (en) * | 1958-04-22 | 1963-07-02 | Leesona Corp | Solid-state battery |
| US3419645A (en) * | 1964-10-03 | 1968-12-31 | Hoechst Ag | Process for preparing finely porous, shaped carbon bodies |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2658099A (en) | Microporous carbon and graphite articles, including impregnated battery electrodes and methods of making the same | |
| CN102933316A (en) | Methods of preparing carbonaceous material | |
| US4024076A (en) | Process for producing granular sulfurized material, granular carbon or granular activated carbon | |
| AU2015261350B2 (en) | Method for preparing a composite carbon material with a view to the use thereof for manufacturing carbon blocks | |
| US2527596A (en) | Carbon body and method of making | |
| US1307738A (en) | Baked carbon article | |
| CN115093874A (en) | Preparation method and system of low-quinoline insoluble matter high-softening-point petroleum-based coated asphalt | |
| US1899064A (en) | Manufacture of electrodes | |
| US4081350A (en) | Diaphragms for use in the electrolysis of alkali metal chlorides | |
| CN112853403A (en) | Prebaked anode, and preparation method and application thereof | |
| US4168221A (en) | Diaphragms for use in the electrolysis of alkali metal chlorides | |
| JPH0576556B2 (en) | ||
| US935180A (en) | Graphite article and process of making the same. | |
| US3505090A (en) | Process for the production of carbon articles | |
| JPS6338593A (en) | Carbon electrode | |
| US1517819A (en) | Method of producing carbon electrodes and the product thereof | |
| US779733A (en) | Electrode. | |
| US3316183A (en) | Shaped carbon articles and method of making | |
| WO2004031451A1 (en) | Cathode block for aluminum refining and method for production thereof | |
| GB510256A (en) | Improvements in or relating to carbon articles and methods of producing the same | |
| US4167469A (en) | Diaphragms for use in the electrolysis of alkali metal chlorides | |
| GB2198747A (en) | Electrode for electrochemical processes | |
| US1989107A (en) | Nonstructural adsorptive carbon and process of making same | |
| SU995704A3 (en) | Carbonaceous composition for connecting carbon blocks in aluminium electrolyzer | |
| US4046650A (en) | Carbon block for cathodes of aluminum |