UA15830C2 - Спосіб одержаhhя кристалічhого карбаміда - Google Patents
Спосіб одержаhhя кристалічhого карбамідаInfo
- Publication number
- UA15830C2 UA15830C2 UA93007238A UA93007238A UA15830C2 UA 15830 C2 UA15830 C2 UA 15830C2 UA 93007238 A UA93007238 A UA 93007238A UA 93007238 A UA93007238 A UA 93007238A UA 15830 C2 UA15830 C2 UA 15830C2
- Authority
- UA
- Ukraine
- Prior art keywords
- carbamide
- production
- elimination
- crystals
- crystalline
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Fertilizers (AREA)
Abstract
Винахід належить до виробництва мінеральних добрив, до способу одержання кристалічного карбаміду, що передбачає кристалізацію розчину до температури пересичення з одночасним барботуванням інертного відносно карбаміду газу і наступним виведенням кристалів карбаміду. Кристалізація проводиться у всьому обсязі пересиченого розчину, а виведення кристалів карбаміду здійснюється фільтрацією.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU9292008493A RU2041202C1 (ru) | 1992-12-09 | 1992-12-09 | Способ получения кристаллического карбамида |
Publications (1)
Publication Number | Publication Date |
---|---|
UA15830C2 true UA15830C2 (uk) | 1997-06-30 |
Family
ID=20132656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UA93007238A UA15830C2 (uk) | 1992-12-09 | 1993-08-05 | Спосіб одержаhhя кристалічhого карбаміда |
Country Status (3)
Country | Link |
---|---|
RU (1) | RU2041202C1 (uk) |
UA (1) | UA15830C2 (uk) |
WO (1) | WO1994013630A1 (uk) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2472777C1 (ru) * | 2011-11-23 | 2013-01-20 | Фарид Алекович Батуллин | Способ получения кристаллического карбамида высокой очистки |
CN104888478B (zh) * | 2015-05-29 | 2017-01-11 | 浙江工业大学化工设备有限公司 | 二段蒸发分离器 |
CN110575751A (zh) * | 2018-06-11 | 2019-12-17 | 河南车权健新能源科技有限公司 | 一种车用尿素试剂及其制备方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124612A (en) * | 1964-03-10 | Urea crystallization | ||
SU113146A1 (ru) * | 1957-05-16 | 1957-11-30 | А.А. Дьяченко | Агрегат дл сортировки и укладки стальных листов |
GB1148572A (en) * | 1966-02-05 | 1969-04-16 | Power Gas Ltd | Process for the production of coarse crystals of urea |
-
1992
- 1992-12-09 RU RU9292008493A patent/RU2041202C1/ru active
- 1992-12-28 WO PCT/RU1992/000255 patent/WO1994013630A1/ru active Application Filing
-
1993
- 1993-08-05 UA UA93007238A patent/UA15830C2/uk unknown
Also Published As
Publication number | Publication date |
---|---|
WO1994013630A1 (en) | 1994-06-23 |
RU2041202C1 (ru) | 1995-08-09 |
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