RO81689B1 - Procedeu de obtinere a disulfurii de seleniu - Google Patents
Procedeu de obtinere a disulfurii de seleniuInfo
- Publication number
- RO81689B1 RO81689B1 RO103343A RO10334381A RO81689B1 RO 81689 B1 RO81689 B1 RO 81689B1 RO 103343 A RO103343 A RO 103343A RO 10334381 A RO10334381 A RO 10334381A RO 81689 B1 RO81689 B1 RO 81689B1
- Authority
- RO
- Romania
- Prior art keywords
- selenium
- weight
- parts
- disulfide
- dioxide
- Prior art date
Links
- JNMWHTHYDQTDQZ-UHFFFAOYSA-N selenium sulfide Chemical compound S=[Se]=S JNMWHTHYDQTDQZ-UHFFFAOYSA-N 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 4
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 abstract 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 3
- 229910052711 selenium Inorganic materials 0.000 abstract 3
- 239000011669 selenium Substances 0.000 abstract 3
- 229910000338 selenium disulfide Inorganic materials 0.000 abstract 3
- 229960005265 selenium sulfide Drugs 0.000 abstract 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 2
- 239000002202 Polyethylene glycol Substances 0.000 abstract 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract 2
- 229920001223 polyethylene glycol Polymers 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- 239000011592 zinc chloride Substances 0.000 abstract 2
- 235000005074 zinc chloride Nutrition 0.000 abstract 2
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- HPSIJUOYDYALSZ-UHFFFAOYSA-N [Se](=O)=O.[Se] Chemical compound [Se](=O)=O.[Se] HPSIJUOYDYALSZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000000084 colloidal system Substances 0.000 abstract 1
- 238000005755 formation reaction Methods 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000012429 reaction media Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Procedeul de obtinere a disulfurii de seleniu de puritate farmaceutica pornind de la seleniu metalic care într-o prima faza este oxidat la dioxid de seleniu cu acid azotic, iar în faza urmatoare dioxidul de seleniutrece în disulfura de seleniu prin reactionare cu hidrogen sulfurat, în mediu de cloruri metalice caracterizat prin aceea ca, reactia de formare a disulfurii de seleniu din oxid de seleniu si hidrogen sulfurat, se efectueaza în atmosfera inerta în prezenta unui coloid de protectie de natura polimerica solubila în apa constînd din polietilenglicol cu greutate moleculara de 4000 si a clorurii de zinc, aciditatea mediului de reactie fiind controlata prin neutralizare cu carbonat de sodiu pentru transformarea acidului selenios format în situ, într-o sare acida a sa; pentru obtinerea a 20 parti în greutate disulfura de seleniu, folosindu-se 20 parti în greutate dioxid de seleniu, 9,06 parti în greutate carbonat de sodiu, 1 parte în greutate clorura de zinc si 20 parti în greutate polietilenglicol avînd greutatea moleculara de 4000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO103343A RO81689B1 (ro) | 1981-02-07 | 1981-02-07 | Procedeu de obtinere a disulfurii de seleniu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO103343A RO81689B1 (ro) | 1981-02-07 | 1981-02-07 | Procedeu de obtinere a disulfurii de seleniu |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81689A2 RO81689A2 (ro) | 1983-04-29 |
| RO81689B1 true RO81689B1 (ro) | 1983-04-30 |
Family
ID=20109524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO103343A RO81689B1 (ro) | 1981-02-07 | 1981-02-07 | Procedeu de obtinere a disulfurii de seleniu |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81689B1 (ro) |
-
1981
- 1981-02-07 RO RO103343A patent/RO81689B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81689A2 (ro) | 1983-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3360439D1 (en) | Bis-perhalogenacyl or sulfonyl imides of alkali metals, their solid solutions with plastic material and their use in the production of conducting elements for electrochemical generators | |
| JPS6124329B2 (ro) | ||
| SE7510143L (sv) | Sett att framstella veteperoxid | |
| EG14755A (en) | Aluminium sulphate compositions containing polynuclear complexes and a method of producing the same and the use thereof | |
| DE3170107D1 (en) | A method of manufacturing sulphuric acid | |
| GB1521120A (en) | Removal of trace heavy metal contaminants from algae | |
| NO885805D0 (no) | Fremstilling av endegruppelukket polyglykoleter. | |
| JPS6416809A (en) | Metal-containing polymer composition and production thereof | |
| KR830006830A (ko) | 카드뮴과 텔루륨을 함유하는 과산화은 전지 | |
| JPS5527190A (en) | Manufacture of metal salt or complex of organic acid | |
| GB2017082A (en) | 5-Fluorouracil derivatives, process for their production and pharmaceuticals containing them | |
| GB1321515A (en) | Production of sulphur from iron sulphide and sulphur dioxide | |
| GB1514807A (en) | Process for preparing sulphur dioxide | |
| GB1449602A (en) | Preparation of alkaline earth sulphides | |
| ATE30899T1 (de) | Verfahren zur gewinnung von cesium aus cesiumalum. | |
| GB1487902A (en) | Preparation of fertilisers and soil modifiers | |
| GB1469907A (en) | Method for preparing bis-2-pyridyl-1-oxide- disulphide | |
| JPS55167135A (en) | Manufacture of yellow iron oxide | |
| CN86104945A (zh) | 生产氢氧化物、硫代硫酸盐、硫酸盐、硫磺的方法 | |
| US1343390A (en) | Process of forming manganese peroxid | |
| SE8107785L (sv) | Forfarande for utvinning av uran i form av peroxid fran en svavelhaltig angreppslosning pa uranforande malm | |
| DE2962632D1 (en) | Process for the preparation of n-(3-hydroxyphenyl)-(thiol)-carbamates | |
| JPS5325297A (en) | Production of silver oxide for cell | |
| Campbell et al. | Curing Compositions for Polysulphide Polymers | |
| KR870002067A (ko) | 할로페닐 하이드록시에틸 설파이드 및 이의 산화물의 제조방법 |