RU1818300C - Process for preparation of carbon adsorbent - Google Patents
Process for preparation of carbon adsorbentInfo
- Publication number
- RU1818300C RU1818300C SU4949300A RU1818300C RU 1818300 C RU1818300 C RU 1818300C SU 4949300 A SU4949300 A SU 4949300A RU 1818300 C RU1818300 C RU 1818300C
- Authority
- RU
- Russia
- Prior art keywords
- coke
- semi
- silver
- carbon
- resin
- Prior art date
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Description
Изобретение относитс к спосо&у получени углеродного адсорбента, используемого дли сорбции серебра. Цель изобретейи - повышение селективности адсорбента по серебру.The invention relates to a process for producing a carbon adsorbent used for the sorption of silver. The purpose of the invention is to increase the selectivity of the adsorbent for silver.
, Пример t. Сланцевую смолу помещают в реторту, которую нагревают до . Полученный полукокс охлаждают и измельчают в порошок. Нефт ной асфальтит подвергают полукоксованию при нагревании до 550°С и измельчают а порошок. Затем полукокс асфальтита нитруют концентрированной азотной кислотой при 80°С в течение 10 ч и осуществл ют промывку до нейтральной реакции. 300 г нитрованного полукокса асфальтитасмешиваютс 300 г полукокса сланцевой смолы и 400 г древесной смолы. Полученную массу гранулируют на шнек - прессе через фильеры 2 мм. Гранулы выдерживают на воздухе при 20°С б ч. Карбонизацию гранул осуществл ют во вращающейс печи s атмосфере углекислого газа при нагревании до 800°С, а активирование ведут при 800°С до обгара 28%., Example t. The shale resin is placed in a retort, which is heated to. The resulting semi-coke is cooled and pulverized. Oil asphaltite is semi-coked by heating to 550 ° C and ground into a powder. The asphaltite semi-coke is then nitrated with concentrated nitric acid at 80 ° C for 10 hours and washing is carried out until neutral. 300 g of nitrated semi-coke asphalt are mixed. 300 g of semi-coke of shale resin and 400 g of wood tar. The resulting mass is granulated on a screw press through 2 mm dies. The granules are held in air at 20 ° C for an hour. The carbonization of the granules is carried out in a rotary kiln s atmosphere of carbon dioxide when heated to 800 ° C, and activation is carried out at 800 ° C until 28% burn.
Адсорбционную способность полученного углеродного адсорбента определ ют.The adsorption capacity of the obtained carbon adsorbent is determined.
использу раствор, содержащий 0,01 мг/дм3 золота, 0.9 мг/дм серебра, 63,2 мг/дм3 меди,55,8 мг/дм цинка, 0,48 мг/дм никел и 0,33 мг/дга3 кобальта.using a solution containing 0.01 mg / dm3 of gold, 0.9 mg / dm of silver, 63.2 mg / dm3 of copper, 55.8 mg / dm of zinc, 0.48 mg / dm of nickel and 0.33 mg / dga3 of cobalt.
В таблице приведены значени адсорбционной емкости адсорбента и коэффициента селективности по серебру.The table shows the adsorption capacity of the adsorbent and the selectivity coefficient for silver.
Примеры 2-5 аналогичны примеру 1, за исключением с массового соотношени в смеси нитрованного полукокса асфальтита, полукокса сланцевой смолы и древесной смолы, значени которого приведены в таблице .: ,Examples 2-5 are similar to example 1, except for the mass ratio in the mixture of nitrated semi-coke asphaltite, semi-coke shale resin and wood resin, the values of which are given in the table.:,
Примеры 6-9 аналогичны примеру 2, за исключением обгара при активировании; значени которого приведены в таблице.Examples 6-9 are similar to example 2, with the exception of the burn when activated; the values of which are given in the table.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4949300 RU1818300C (en) | 1991-06-25 | 1991-06-25 | Process for preparation of carbon adsorbent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4949300 RU1818300C (en) | 1991-06-25 | 1991-06-25 | Process for preparation of carbon adsorbent |
Publications (1)
Publication Number | Publication Date |
---|---|
RU1818300C true RU1818300C (en) | 1993-05-30 |
Family
ID=21581270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4949300 RU1818300C (en) | 1991-06-25 | 1991-06-25 | Process for preparation of carbon adsorbent |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU1818300C (en) |
-
1991
- 1991-06-25 RU SU4949300 patent/RU1818300C/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 9051:93, .,. ;;;: ..: ,, x-v-:,v: кл. С Ш В 31/16,1982. * |
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