SU72201A1 - Method of separating hydrogen cyanide from coke oven gas - Google Patents
Method of separating hydrogen cyanide from coke oven gasInfo
- Publication number
- SU72201A1 SU72201A1 SU34502A SU34502A SU72201A1 SU 72201 A1 SU72201 A1 SU 72201A1 SU 34502 A SU34502 A SU 34502A SU 34502 A SU34502 A SU 34502A SU 72201 A1 SU72201 A1 SU 72201A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coke oven
- hydrogen cyanide
- oven gas
- separating hydrogen
- gases
- Prior art date
Links
Landscapes
- Industrial Gases (AREA)
Description
Незначительное содержание цианистого водорода в коксовом газе (около 1 г/м) не обеспечивает рентабильности выделени его абсорбционным методом.The insignificant content of hydrogen cyanide in the coke oven gas (about 1 g / m) does not ensure the cost-effectiveness of its release by the absorption method.
Оиисываемый сиособ нозвол ет вымораживать сырой коксовый га., в котором содержитс вода, нафталин, сырой бензол, аммиак, сероводород , углекислота, цианистые соединени и т .д. При температуре О выдел етс весь нафталин и около 80% воды. При - 40 - 60° выиадает сырой бензол и аммиачные соли. Нагреванием последних проду.тов вымораживани до -10° расплавл ют сырой бензол, фильтрованием и фугованием отдел ют его от аммонийных солей. Выделившиес при этом газы присоедин ют к иовой порции коксового газа или к газам, получаемым при разложеиии аммонийных солей серной кислоты. При последнем цикле из аммонийных солей получают сульфат аммони и смесь газов: сероводород, углекислота и цианистый водород.The siuming plant permits freezing of crude coke oven, which contains water, naphthalene, crude benzene, ammonia, hydrogen sulfide, carbon dioxide, cyanide compounds, and so on. At temperature O, all naphthalene and about 80% of water are released. At - 40 - 60 °, crude benzene and ammonium salts are produced. By heating the last products of freezing to -10 °, the crude benzene is melted, filtered off and removed from the ammonium salts by filtration. The gases released during this process are added to the coke oven gas or to the gases produced by the decomposition of ammonium salts of sulfuric acid. In the last cycle, ammonium sulfate and a mixture of gases: hydrogen sulfide, carbon dioxide and hydrogen cyanide are obtained from ammonium salts.
После этого газы подвергаютс повторному вымораживанию при -40-60° и получают кристаллы цианистого водорода, которые при -13° переход т в жидкую синильную кислоту, испар ющуюс при нагреве до +26°.Thereafter, the gases are subjected to repeated freezing at -40-60 ° and crystals of hydrogen cyanide are obtained, which at -13 ° are converted into liquid hydrocyanic acid, evaporating during heating to + 26 °.
Предмет изобретени Subject invention
Способ выделепи цианистого водорода из пр мого коксового газа, отличающийс тем, что из него вымораживают сырой бензол и аммиачные соли, последние после отделени от бензола разлагают кислотой , выделившиес газы охлаждают до -40-60° и полученные кристаллы плав т нри температуре около -13° или испар ют при температуре около +26.A process for separating hydrogen cyanide from direct coke oven gas, characterized in that it freezes out raw benzene and ammonium salts, the latter, after separation from benzene, are decomposed by acid, the released gases are cooled to -40-60 ° and the resulting crystals are melted at about -13 ° C or evaporated at about + 26 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU34502A SU72201A1 (en) | 1940-07-22 | 1940-07-22 | Method of separating hydrogen cyanide from coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU34502A SU72201A1 (en) | 1940-07-22 | 1940-07-22 | Method of separating hydrogen cyanide from coke oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU72201A1 true SU72201A1 (en) | 1947-11-30 |
Family
ID=48248807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU34502A SU72201A1 (en) | 1940-07-22 | 1940-07-22 | Method of separating hydrogen cyanide from coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU72201A1 (en) |
-
1940
- 1940-07-22 SU SU34502A patent/SU72201A1/en active
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