WO2023068964A1 - Способ получения углеграфитовых изделий - Google Patents
Способ получения углеграфитовых изделий Download PDFInfo
- Publication number
- WO2023068964A1 WO2023068964A1 PCT/RU2021/000550 RU2021000550W WO2023068964A1 WO 2023068964 A1 WO2023068964 A1 WO 2023068964A1 RU 2021000550 W RU2021000550 W RU 2021000550W WO 2023068964 A1 WO2023068964 A1 WO 2023068964A1
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- WO
- WIPO (PCT)
- Prior art keywords
- carbon
- products
- container
- graphite
- packing
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 28
- 239000010439 graphite Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 19
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000004202 carbamide Substances 0.000 claims abstract description 14
- 235000013877 carbamide Nutrition 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000571 coke Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 12
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 238000012856 packing Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000001354 calcination Methods 0.000 abstract description 4
- 238000004939 coking Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 description 7
- 230000004580 weight loss Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 102200052313 rs9282831 Human genes 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
-
- 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
- C04B35/522—Graphite
-
- 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
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5463—Particle size distributions
- C04B2235/5472—Bimodal, multi-modal or multi-fraction
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/604—Pressing at temperatures other than sintering temperatures
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6587—Influencing the atmosphere by vaporising a solid material, e.g. by using a burying of sacrificial powder
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
Definitions
- the invention relates to the production of carbon products, namely to the technology of their processing during firing, and can be used in various branches of technology for the manufacture of electrodes, crucibles, heaters, as well as materials for nuclear technology, for example, uranium-graphite fuel elements.
- the production process of carbon-graphite products consists of several technological operations, among which firing occupies a special place in the manufacture of carbon-graphite products.
- the main process during the firing of "green" blanks is the formation of a cementing coke lattice from a binder. In this case, thermal destruction of the binder occurs, the formation of semi-coke from it and its subsequent transformation into coke. Roasting determines the quality and performance properties of carbon-graphite products.
- the quality of the resulting carbon-graphite products largely depends on their degree of oxidation during firing.
- a known method for producing carbon-graphite products which consists in the fact that their heat treatment is carried out with a periodic decrease in the firing temperature of products in the areas of phase transitions of the binder (RU 2230380, IPC G21C 21/02 (2000.01), publ. 10.06.2004).
- Such firing requires heat treatment in an inert or reducing atmosphere, which complicates the instrumentation of the process.
- a known method for producing carbon-graphite products according to which the products are fired in a container under the pressure of volatile gases (SU 865789, IPC C01B 31/04 (2000.01), publ. 23.09.1981).
- the disadvantage of this method lies in the fact that when pressing the blank into a container and subsequent heat treatment, the pressure of the released volatile gases reaches several tens of atmospheres.
- the manufacture of a special individual container is required, which makes it problematic to use the method for mass production of products.
- the closest in technical essence and problem to be solved is a method for producing carbon-graphite products, including the placement of carbon-graphite blanks in a container with carbon backfill between the blanks and the walls of the container and subsequent firing of the blanks and graphitization in a hermetically sealed container under the pressure of emitted volatiles (GB 759160, IPC ⁇ 04 ⁇ 35/ 532, published 10/17/1956).
- This method is quite effective in obtaining large-sized products, when the amount of air contained in the charge is not enough to noticeably oxidize the surface of the fired workpiece.
- firing of small-sized workpieces in the presence of filling leads to their partial oxidation and coking of the filling to the surface of the resulting products.
- firing in a sealed container at high temperature and high pressure tens of atmospheres) complicates the hardware design of the process.
- the objective of the invention and the technical result achieved by using the invention is to simplify the firing process and improve the quality of carbon-graphite products, especially small-sized ones, by eliminating their oxidation and coking of the backfill.
- urea is used as filling the container, which is loaded in an amount of 5-10 wt.% of the blanks, the container is placed in a closed container with limited air access, which is filled with carbon backfill also containing urea in the amount of 5-10 wt.% backfill.
- - firing of blanks is carried out by heating to a temperature of 750-800°C.
- Carbamide (NH ⁇ CO) is added to the carbon charge and the container with the samples to be fired to provide (create) a protective atmosphere during annealing.
- carbamide decomposes with the formation of ammonia and carbon dioxide.
- Carbon dioxide in turn, at temperatures > 500 °C interacts with carbon to form carbon monoxide according to the reaction:
- the resulting carbon monoxide and ammonia act as a protective atmosphere that prevents the oxidation of the fired samples.
- the pressed "green" blanks were placed in cylindrical containers made of GMZ graphite and graphlex, which contained a filling of urea in the amount of 5 - 10 wt.% of the loaded blanks.
- Containers with blanks and urea were placed in a container made of heat-resistant steel with limited air access, which was provided with a lid, covered with coke filling, also containing urea in the amount of 5-10 wt.% filling.
- Roasting was carried out in standard calcined muffle type SNOL 6/10 at a heating rate of 30 - 50 °C/hour to a temperature of 750 °C.
- Control sample No. 1 (see table) was fired without adding urea. The results of firing samples of carbon-graphite products are given in the table. Table
- the firing results given in the table show a weight loss of samples in the range of 6.9 - 10.2%. This weight loss of samples due to a greater extent the pyrolysis of the binder - phenol-formaldehyde resin SFP 011 A and, to a lesser extent, partial oxidation of carbon. Since the weight loss due to the thermal pyrolysis of the binder is approximately the same for all samples, the degree of oxidation of the samples can be judged from the total weight loss (mass loss due to the thermal pyrolysis of the binder plus loss due to carbon oxidation) of the fired samples.
- the proposed method makes it possible to significantly simplify the production of carbon-graphite products, since it allows heat treatment in conventional calcining muffle furnaces without the use of inert and reducing gases and a complex aggregated system for sealing a container with fired samples, as well as to improve the quality of products by eliminating surface oxidation and coking of the filling to them. surfaces.
- the proposed method for producing carbon-graphite products can be used both for firing "green" blanks obtained by powder metallurgy, and for impregnating graphite and other porous ceramic materials with solutions of salts of various metals.
- the proposed method is especially effective in obtaining small-sized products, for which stringent requirements are imposed on the possibility of oxidation, the absence of cracks and the state of the surface of the products.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180101485.1A CN117794855A (zh) | 2021-10-21 | 2021-12-08 | 碳石墨制品的生产方法 |
EP21961550.7A EP4421033A1 (en) | 2021-10-21 | 2021-12-08 | Method of producing carbon graphite products |
KR1020247002684A KR20240034196A (ko) | 2021-10-21 | 2021-12-08 | 카본 흑연 제품의 제조 방법 |
CA3225729A CA3225729A1 (en) | 2021-10-21 | 2021-12-08 | Method of producing carbon-graphite items |
ZA2024/00644A ZA202400644B (en) | 2021-10-21 | 2024-01-18 | Method of producing carbon-graphite products |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2021130743 | 2021-10-21 | ||
RU2021130743A RU2780454C1 (ru) | 2021-10-21 | Способ получения углеграфитовых изделий |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023068964A1 true WO2023068964A1 (ru) | 2023-04-27 |
Family
ID=86058420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2021/000550 WO2023068964A1 (ru) | 2021-10-21 | 2021-12-08 | Способ получения углеграфитовых изделий |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP4421033A1 (ru) |
KR (1) | KR20240034196A (ru) |
CN (1) | CN117794855A (ru) |
CA (1) | CA3225729A1 (ru) |
WO (1) | WO2023068964A1 (ru) |
ZA (1) | ZA202400644B (ru) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB759160A (en) | 1953-08-04 | 1956-10-17 | Atomic Energy Authority Uk | Improvements in or relating to production of carbon masses |
SU863567A1 (ru) * | 1979-12-18 | 1981-09-15 | Предприятие П/Я А-1837 | Засыпка дл термообработки углеродных изделий |
SU865789A1 (ru) * | 1979-12-28 | 1981-09-23 | Предприятие П/Я М-5409 | Способ получени углеграфитовых изделий и контейнер дл размещени и обжига коксопековых заготовок |
SU920345A1 (ru) * | 1979-06-18 | 1982-04-15 | Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Электродной Промышленности | Способ получени углеграфитовых изделий |
SU1685868A1 (ru) * | 1989-07-11 | 1991-10-23 | Предприятие П/Я М-5409 | Способ пакетировки крупногабаритных длинномерных углеродных заготовок в процессе обжига |
RU2230380C2 (ru) | 2002-07-24 | 2004-06-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт Научно-производственное объединение "Луч" | Способ получения углеграфитовых изделий |
-
2021
- 2021-12-08 CA CA3225729A patent/CA3225729A1/en active Pending
- 2021-12-08 EP EP21961550.7A patent/EP4421033A1/en active Pending
- 2021-12-08 WO PCT/RU2021/000550 patent/WO2023068964A1/ru active Application Filing
- 2021-12-08 CN CN202180101485.1A patent/CN117794855A/zh active Pending
- 2021-12-08 KR KR1020247002684A patent/KR20240034196A/ko active Search and Examination
-
2024
- 2024-01-18 ZA ZA2024/00644A patent/ZA202400644B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB759160A (en) | 1953-08-04 | 1956-10-17 | Atomic Energy Authority Uk | Improvements in or relating to production of carbon masses |
SU920345A1 (ru) * | 1979-06-18 | 1982-04-15 | Государственный Научно-Исследовательский И Проектно-Конструкторский Институт Электродной Промышленности | Способ получени углеграфитовых изделий |
SU863567A1 (ru) * | 1979-12-18 | 1981-09-15 | Предприятие П/Я А-1837 | Засыпка дл термообработки углеродных изделий |
SU865789A1 (ru) * | 1979-12-28 | 1981-09-23 | Предприятие П/Я М-5409 | Способ получени углеграфитовых изделий и контейнер дл размещени и обжига коксопековых заготовок |
SU1685868A1 (ru) * | 1989-07-11 | 1991-10-23 | Предприятие П/Я М-5409 | Способ пакетировки крупногабаритных длинномерных углеродных заготовок в процессе обжига |
RU2230380C2 (ru) | 2002-07-24 | 2004-06-10 | Федеральное государственное унитарное предприятие "Научно-исследовательский институт Научно-производственное объединение "Луч" | Способ получения углеграфитовых изделий |
Non-Patent Citations (2)
Title |
---|
LEVASHOVA A.IKRAVTSOV A.V.: "Textbook. Tomsk, TPU Publishing House", vol. Chemical Technology of Carbon Materials, 2008, pages: 72 |
LEVASHOVA A.IKRAVTSOV A.V: "Textbook. - Tomsk: TPU Publishing House", 2008, article "Chemical Technology of Carbon Materials", pages: 14 |
Also Published As
Publication number | Publication date |
---|---|
EP4421033A1 (en) | 2024-08-28 |
CN117794855A (zh) | 2024-03-29 |
CA3225729A1 (en) | 2023-04-27 |
KR20240034196A (ko) | 2024-03-13 |
ZA202400644B (en) | 2024-08-28 |
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