RO86349B1 - Procedeu de obtinere a ureei farmaceutice - Google Patents
Procedeu de obtinere a ureei farmaceuticeInfo
- Publication number
- RO86349B1 RO86349B1 RO109523A RO10952382A RO86349B1 RO 86349 B1 RO86349 B1 RO 86349B1 RO 109523 A RO109523 A RO 109523A RO 10952382 A RO10952382 A RO 10952382A RO 86349 B1 RO86349 B1 RO 86349B1
- Authority
- RO
- Romania
- Prior art keywords
- urea
- urea solution
- biuret
- pharmaceutical
- temperature
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 6
- 239000004202 carbamide Substances 0.000 abstract 6
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000013019 agitation Methods 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 238000010668 complexation reaction Methods 0.000 abstract 1
- 229910000365 copper sulfate Inorganic materials 0.000 abstract 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000741 silica gel Substances 0.000 abstract 1
- 229910002027 silica gel Inorganic materials 0.000 abstract 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 abstract 1
- 229960002167 sodium tartrate Drugs 0.000 abstract 1
- 239000001433 sodium tartrate Substances 0.000 abstract 1
- 235000011004 sodium tartrates Nutrition 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Procedeul de obtinere a ureei farmaceutice, conform inventiei, consta în aceea ca, solutia de uree cu concentratia de 55...60% obtinuta prin dizolvarea ureei tehnice în apa dedurizata, la temperatura de 40 degree C, se filtraza pentru retinerea impuritatilor mecanice eventual se trece peste silicagel pentru absorbtia partiala a biuretului pîna la 0,2%, se complexeaza biuretul prin tratare cu sulfat de cupru, tartrat dublu de sodiu, toate în stare solida, dupa care solutia de uree este trecuta succesiv peste schimbatori de ioni, retinîndu-se atît anionii cxît si cationii formati prin complexarea biuretului, rezultînd o solutie de uree cu concentratia aprox. 45%, care apoi se concentreaza sub vid la temperatura de 40 degree C, se raceste la temperatura de 15 degree C sub agitare mecanica rezultînd microcristale de uree care se separa prin centrifugare si se usuca la temepratura maxima de 40 degree C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109523A RO86349B1 (ro) | 1982-12-29 | 1982-12-29 | Procedeu de obtinere a ureei farmaceutice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO109523A RO86349B1 (ro) | 1982-12-29 | 1982-12-29 | Procedeu de obtinere a ureei farmaceutice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86349A2 RO86349A2 (ro) | 1985-03-15 |
| RO86349B1 true RO86349B1 (ro) | 1985-04-01 |
Family
ID=20112447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO109523A RO86349B1 (ro) | 1982-12-29 | 1982-12-29 | Procedeu de obtinere a ureei farmaceutice |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86349B1 (ro) |
-
1982
- 1982-12-29 RO RO109523A patent/RO86349B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86349A2 (ro) | 1985-03-15 |
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