SU1699913A1 - Method of purification of carbon material - Google Patents
Method of purification of carbon material Download PDFInfo
- Publication number
- SU1699913A1 SU1699913A1 SU894661385A SU4661385A SU1699913A1 SU 1699913 A1 SU1699913 A1 SU 1699913A1 SU 894661385 A SU894661385 A SU 894661385A SU 4661385 A SU4661385 A SU 4661385A SU 1699913 A1 SU1699913 A1 SU 1699913A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- containing gas
- halogen
- carbon material
- purification
- freon
- Prior art date
Links
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000000746 purification Methods 0.000 title claims abstract description 4
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000005087 graphitization Methods 0.000 claims abstract 3
- 239000000463 material Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 10
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Изобретение относитс к технологии получени углеродных материалов с низким содержанием примесей. Цель - повышение степени очистки и сокращение расхода га- логенсодержащего газа. Сущность способа заключаетс в том, что углеродный материал нагревают и по достижении 1500-2000°С начинают подачу гзлогенсодержащего газа, при этом углеродный материал охлаждают до 800-1200°С, после чего подачу галоген- содзржащего газа прекращают и продолжают нагрев углеродного материала до температура графитации. Степень загр зненности продукта примес ми составл ет This invention relates to a technology for producing carbon materials with a low content of impurities. The goal is to increase the degree of purification and reduce the consumption of halogen-containing gas. The essence of the method is that the carbon material is heated and upon reaching 1500-2000 ° C, the supply of hydrogen-containing gas is started, while the carbon material is cooled to 800-1200 ° C, after which the supply of halogen-containing gas is stopped and heating continues carbon material up to graphitization temperature. The degree of contamination of the product by impurities is
Description
Изобретение относитс к технологии получени углеродных материалов с низким содержанием примесей и может быть использовано при изготовлении особо чистых изделий в полупроводниковой и дерной технике.The invention relates to a technology for producing carbon materials with a low content of impurities and can be used in the manufacture of highly pure products in semiconductor and nuclear technology.
Целью изобретени вл етс повышение степени очистки и сокращение расхода галогенсодержащего газа.The aim of the invention is to increase the degree of purification and reduce the consumption of halogen-containing gas.
Пример 1. В электрической печи сопротивлени периодического действи типа Ачесона с источником питани от понижающего трансформатора устанавливают садку 500 кг из обожженных до 1200°С спектральных электродов ф 6 мм, 800 мм с зольностью 1x10 %.Example 1. In an electric Acheson-type batch resistance furnace with a power source from a step-down transformer, a load of 500 kg is set up from spectral electrodes 6 mm, 800 mm burned to 1200 ° C and ash content 1x10%.
Вокруг садки засыпают слой кокса и сажи . В нижнюю часть садки проложена система углеродных газоподвод щих труб. Контроль температуры осуществл ют оптическим пирометром через визирную трубку в центре садки. Нагрев ведут до 1800°С, при этой температуре начинают подавать по газовой системе фреон-12, отключают печь и охлаждают материал до 1000°С Затем прекращают подачу газа и нагревают печь до 2850°С.Around the cages poured a layer of coke and soot. A carbon gas supply pipe system is laid in the lower part of the cage. The temperature was monitored with an optical pyrometer through a sighting tube in the center of the charge. Heating is carried out to 1,800 ° C, at this temperature, Freon-12 is started to flow through the gas system, the furnace is turned off and the material is cooled to 1000 ° C. Then the gas supply is stopped and the furnace is heated to 2850 ° C.
Общий расход фреона-12 1100 гпристе- хиометрически расчетном количестве 690 г.The total consumption of freon-12 is 1100 grams of a calculated amount of 690 g.
П р и м е р 2. Опыт ведут аналогично примеру 1. Подачу фреона-12 начинают при 1500°С, материал охлаждают до 800°С.PRI mme R 2. Experience lead analogously to example 1. The supply of freon-12 starts at 1500 ° C, the material is cooled to 800 ° C.
Общий расход фрерна-12 1050 г.The total consumption of Fren-12 1050
П р и м е р 3. Опыт ведут аналогично примеру 1. Подачу фреона-12 начинают по достижении 2100°С, охлаждение до 1200°С.PRI me R 3. The experience is carried out analogously to example 1. The supply of freon-12 begin upon reaching 2100 ° C, cooling to 1200 ° C.
Общий расход фреона-12 1250 г.The total consumption of freon-12 1250 g
П р и м е р 4. Опыт ведут аналогично примеру 1. Однако в качестве галогенсодержащего газа используют CCU.PRI me R 4. Experience lead analogously to example 1. However, as the halogen-containing gas using CCU.
СОWITH
СWITH
о ю ю юo yu yu
О)ABOUT)
П р и м е р 5. Опыт ведут аналогично примеру 1. Фрерн-12 подают при 1400°С, материал охлаждают до 700°С.PRI me R 5. Experience lead analogously to example 1. Fearn-12 is served at 1400 ° C, the material is cooled to 700 ° C.
Общий расход фреона-12 1050 г.The total consumption of freon-12 1050 g
П р и м е р 6. Опыт ведут аналогично примеру 1. Фреон-12 подают при 2200°С, материал охлаждают до 1300°С.PRI me R 6. Experience lead analogously to example 1. Freon-12 served at 2200 ° C, the material is cooled to 1300 ° C.
Общий расход фреона-12 1250 г.The total consumption of freon-12 1250 g
Пример (по известному способу). Загрузку печи осуществл ют аналогично примеру 1. Нагрев ведут до 2850°С, фреон- 12 подают по достижении температуры 2000°С в течение 3 ч по 1 % веса садки.Example (by a known method). The furnace was loaded in the same way as in Example 1. The heating is carried out to 2850 ° C, freon-12 is supplied when the temperature reaches 2000 ° C for 3 hours at 1% of the weight of the charge.
Расход фреона-12 15 кг.Freon-12 consumption is 15 kg.
Результаты испытаний даны в таблице,The test results are given in the table,
Использование предлагаемого способа очистки позвол ет по сравнению с известным в 1,5-2 раза снизить степень загр зненности материала примес ми и в 12 разThe use of the proposed cleaning method makes it possible, as compared with the known method, to reduce by 1.5–2 times the degree of contamination of the material with impurities and 12 times
снизить расход галогенсодержащего газа, что позвол ет уменьшить загр знение атмосферы довитыми продуктами его распада и тем самым улучшить экологическуюreduce the consumption of halogen-containing gas, which allows reducing the pollution of the atmosphere with toxic products of its decay and thereby improving the environmental
5 обстановку производства.5 production environment.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894661385A SU1699913A1 (en) | 1989-03-10 | 1989-03-10 | Method of purification of carbon material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894661385A SU1699913A1 (en) | 1989-03-10 | 1989-03-10 | Method of purification of carbon material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1699913A1 true SU1699913A1 (en) | 1991-12-23 |
Family
ID=21433681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894661385A SU1699913A1 (en) | 1989-03-10 | 1989-03-10 | Method of purification of carbon material |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1699913A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2603015C1 (en) * | 2015-10-29 | 2016-11-20 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of cleaning irradiated graphite bushings of uranium-graphite reactor and device for implementation thereof |
-
1989
- 1989-03-10 SU SU894661385A patent/SU1699913A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент FR № 1М3902, кл. С 01 В, 1957. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2603015C1 (en) * | 2015-10-29 | 2016-11-20 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Method of cleaning irradiated graphite bushings of uranium-graphite reactor and device for implementation thereof |
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