SG11201402507YA - Method for producing high-purity crystalline carbamide - Google Patents
Method for producing high-purity crystalline carbamideInfo
- Publication number
- SG11201402507YA SG11201402507YA SG11201402507YA SG11201402507YA SG11201402507YA SG 11201402507Y A SG11201402507Y A SG 11201402507YA SG 11201402507Y A SG11201402507Y A SG 11201402507YA SG 11201402507Y A SG11201402507Y A SG 11201402507YA SG 11201402507Y A SG11201402507Y A SG 11201402507YA
- Authority
- SG
- Singapore
- Prior art keywords
- producing high
- purity crystalline
- crystalline carbamide
- carbamide
- purity
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/422—Electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
- C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
- C07C237/16—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and unsaturated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/02—Crystallisation from solutions
- B01D9/04—Crystallisation from solutions concentrating solutions by removing frozen solvent therefrom
-
- 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)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Urology & Nephrology (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Saccharide Compounds (AREA)
- Seasonings (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2011147680/04A RU2472777C1 (ru) | 2011-11-23 | 2011-11-23 | Способ получения кристаллического карбамида высокой очистки |
| PCT/RU2012/001014 WO2013077775A2 (ru) | 2011-11-23 | 2012-12-03 | Способ получения кристаллического карбамида высокой очистки |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11201402507YA true SG11201402507YA (en) | 2014-09-26 |
Family
ID=48470397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11201402507YA SG11201402507YA (en) | 2011-11-23 | 2012-12-03 | Method for producing high-purity crystalline carbamide |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US9192893B2 (ru) |
| EP (1) | EP2784060B1 (ru) |
| CN (1) | CN104080765B (ru) |
| AT (1) | AT515241B1 (ru) |
| AU (1) | AU2012341102B9 (ru) |
| BG (1) | BG66591B1 (ru) |
| BR (1) | BR112014011817B1 (ru) |
| CA (1) | CA2856276C (ru) |
| CZ (1) | CZ305573B6 (ru) |
| DE (1) | DE112012004881T5 (ru) |
| DK (1) | DK178065B1 (ru) |
| ES (1) | ES2486640B1 (ru) |
| FI (1) | FI126352B (ru) |
| GB (1) | GB2538483A (ru) |
| HU (1) | HUP1400301A2 (ru) |
| MX (1) | MX2014006222A (ru) |
| NO (1) | NO20140641A1 (ru) |
| PL (1) | PL222478B1 (ru) |
| PT (1) | PT2013077775B (ru) |
| RO (1) | RO131559A2 (ru) |
| RU (1) | RU2472777C1 (ru) |
| SE (1) | SE537706C2 (ru) |
| SG (1) | SG11201402507YA (ru) |
| UA (1) | UA111241C2 (ru) |
| WO (1) | WO2013077775A2 (ru) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548403A (zh) * | 2018-05-31 | 2019-12-10 | 河南仁华生物科技有限公司 | 一种医药中间体的脱盐及浓缩方法 |
| CN110357284A (zh) * | 2019-06-27 | 2019-10-22 | 福建中源新能源股份有限公司 | 一种船用尿素溶液的制备方法及其应用 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124612A (en) * | 1964-03-10 | Urea crystallization | ||
| GB690594A (en) * | 1950-04-06 | 1953-04-22 | Basf Ag | Improvements in the production of urea |
| US2892870A (en) * | 1955-11-21 | 1959-06-30 | Lonza Electric & Chem Works | Process for purifying and crystallizing urea |
| NL285601A (ru) * | 1961-11-28 | |||
| GB1148572A (en) * | 1966-02-05 | 1969-04-16 | Power Gas Ltd | Process for the production of coarse crystals of urea |
| FR2036413A5 (ru) * | 1969-03-13 | 1970-12-24 | Thomson Csf | |
| US3903158A (en) * | 1973-05-16 | 1975-09-02 | Mexico Guanos | Process for reducing the biuret content in urea |
| GB1404098A (en) * | 1973-05-16 | 1975-08-28 | Mexico Guanos | Process for reducing the biuret content in urea |
| IN169678B (ru) * | 1987-08-13 | 1991-11-30 | Austral Pacific Fertilizers | |
| RU2041202C1 (ru) * | 1992-12-09 | 1995-08-09 | Научно-инженерный центр "Инфомир" | Способ получения кристаллического карбамида |
| US5645703A (en) * | 1995-12-20 | 1997-07-08 | University Of Chicago | Electrodialysis-based separation process for salt recovery and recycling from waste water |
| NZ503576A (en) * | 1999-03-26 | 2002-10-25 | Snow Brand Milk Products Co Ltd | Method of isolating urea from an urea containing solution using a nanofiltration membrane or reverse osmotic membrane |
| WO2006061082A1 (en) * | 2004-12-08 | 2006-06-15 | Dsm Ip Assets B.V. | Process for the removal of ammonia from an ammonia-containing gas stream |
| EP1857439A1 (en) * | 2006-05-17 | 2007-11-21 | Kemira GrowHow Oyj | Method for purifying aqueous urea solution |
| JP2008280263A (ja) * | 2007-05-09 | 2008-11-20 | Mitsui Chemicals Inc | 高純度尿素水の製造方法 |
| ITMI20072206A1 (it) * | 2007-11-21 | 2009-05-22 | Snam Progetti | Metodo per il recupero di ammoniaca da una corrente gassosa in un processo di sintesi di urea |
| CN102584635B (zh) * | 2012-01-09 | 2013-10-02 | 四川泸天化股份有限公司 | 一种车用尿素的制备方法 |
-
2011
- 2011-11-23 RU RU2011147680/04A patent/RU2472777C1/ru not_active IP Right Cessation
- 2011-11-23 RO ROA201400380A patent/RO131559A2/ro unknown
-
2012
- 2012-03-12 UA UAA201405505A patent/UA111241C2/uk unknown
- 2012-12-03 CA CA2856276A patent/CA2856276C/en not_active Expired - Fee Related
- 2012-12-03 CZ CZ2014-354A patent/CZ305573B6/cs not_active IP Right Cessation
- 2012-12-03 GB GB1408531.0A patent/GB2538483A/en not_active Withdrawn
- 2012-12-03 SG SG11201402507YA patent/SG11201402507YA/en unknown
- 2012-12-03 AU AU2012341102A patent/AU2012341102B9/en not_active Ceased
- 2012-12-03 BR BR112014011817-5A patent/BR112014011817B1/pt not_active IP Right Cessation
- 2012-12-03 DE DE112012004881.4T patent/DE112012004881T5/de not_active Withdrawn
- 2012-12-03 ES ES201490054A patent/ES2486640B1/es active Active
- 2012-12-03 AT ATA9437/2012A patent/AT515241B1/de not_active IP Right Cessation
- 2012-12-03 PT PT2012001014A patent/PT2013077775B/pt active IP Right Grant
- 2012-12-03 WO PCT/RU2012/001014 patent/WO2013077775A2/ru active Application Filing
- 2012-12-03 MX MX2014006222A patent/MX2014006222A/es unknown
- 2012-12-03 SE SE1450590A patent/SE537706C2/sv not_active IP Right Cessation
- 2012-12-03 HU HU1400301A patent/HUP1400301A2/hu unknown
- 2012-12-03 CN CN201280055878.4A patent/CN104080765B/zh not_active Expired - Fee Related
- 2012-12-03 PL PL408264A patent/PL222478B1/pl unknown
- 2012-12-03 US US14/360,347 patent/US9192893B2/en not_active Expired - Fee Related
- 2012-12-03 EP EP12850929.6A patent/EP2784060B1/en not_active Not-in-force
- 2012-12-03 BG BG111761A patent/BG66591B1/bg unknown
-
2014
- 2014-05-05 FI FI20145406A patent/FI126352B/en not_active IP Right Cessation
- 2014-05-15 DK DK201470284A patent/DK178065B1/da not_active IP Right Cessation
- 2014-05-22 NO NO20140641A patent/NO20140641A1/no not_active Application Discontinuation
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