SU142301A1 - The method of obtaining sodium thiocyanate - Google Patents
The method of obtaining sodium thiocyanateInfo
- Publication number
- SU142301A1 SU142301A1 SU724289A SU724289A SU142301A1 SU 142301 A1 SU142301 A1 SU 142301A1 SU 724289 A SU724289 A SU 724289A SU 724289 A SU724289 A SU 724289A SU 142301 A1 SU142301 A1 SU 142301A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium thiocyanate
- obtaining sodium
- solution
- polyacrylonitrile
- obtaining
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известно, что полиакрилнитрил обладает плохой растворимостью. Из р да органических растворителей, в которых полиакрилнитрил з какой-то степени растворим, практическое значение имеет диметилформиад , так как в зкость раствора полимера в нем меньше, чем в других растворител х.It is known that polyacrylonitrile has poor solubility. Of the range of organic solvents in which polyacrylonitrile is soluble to some extent, dimethylformade is of practical importance, since the viscosity of the polymer solution in it is less than in other solvents.
При производстве полиакрилнитрилового волокна в качестве растворител акрилнитрила примен етс тиоцианат натри , содержащей 68-70% основного продукта.In the production of polyacrylonitrile fiber, sodium thiocyanate containing 68-70% of the main product is used as a solvent for acrylonitrile.
Известный способ получени тиоцианата натри из сероуглерода и жидкого аммиака на установке английской фирмы «Куртольдз отличаетс многостадийностью процесса, высокой стоимостью и применением огнеопасных и довитых веществ.A known method for the preparation of sodium thiocyanate from carbon disulfide and liquid ammonia in the plant of the English company Curtolds is characterized by a multistage process, high cost and the use of flammable and poisonous substances.
Предлагаемый способ получени тиоциапата натри требуемого качества в отличие от известного позвол ет использовать бросовые отходы коксохимического производства, содержащие раствор смеси солей, образующихс в результате улавливани из коксового газа цианистого водорода с помощью полисульфида натри .The proposed method for producing sodium thiocapate of the required quality, in contrast to the known, allows the use of waste coke production, containing a solution of a mixture of salts resulting from the capture of hydrogen cyanide from coke gas using sodium polysulfide.
Способ Позвол ет: расщирить сырьев ю базу, упростить процесс, исключить огне- и взрывоопасность, улучщить санитарные -слови труда и снизить затраты.The method allows: to extend the raw material base, simplify the process, eliminate fire and explosion hazards, improve sanitary conditions and labor, and reduce costs.
Характеристика исходного сырь следующа :The characteristics of the feedstock are as follows:
1)Удельный вес раствора 1,3 при 20°;1) The specific gravity of the solution is 1.3 at 20 °;
2)рН раствора 8-12;2) pH of the solution is 8-12;
3)Содержание основных компонентов, г/л.NaCNS 200-480 MagSgOs 30-100 Na2S04 10- 503) The content of the main components, g / l. NaCNS 200-480 MagSgOs 30-100 Na2S04 10-50
Очистка от примесей побочных солей производитс следующим эл разом.Purification of impurities of the side salts is performed as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU724289A SU142301A1 (en) | 1961-03-30 | 1961-03-30 | The method of obtaining sodium thiocyanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU724289A SU142301A1 (en) | 1961-03-30 | 1961-03-30 | The method of obtaining sodium thiocyanate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU142301A1 true SU142301A1 (en) | 1961-11-30 |
Family
ID=48298175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU724289A SU142301A1 (en) | 1961-03-30 | 1961-03-30 | The method of obtaining sodium thiocyanate |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU142301A1 (en) |
-
1961
- 1961-03-30 SU SU724289A patent/SU142301A1/en active
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