JP2014533726A - 高純度結晶カルバミドを生じるための方法 - Google Patents
高純度結晶カルバミドを生じるための方法 Download PDFInfo
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- JP2014533726A JP2014533726A JP2014543445A JP2014543445A JP2014533726A JP 2014533726 A JP2014533726 A JP 2014533726A JP 2014543445 A JP2014543445 A JP 2014543445A JP 2014543445 A JP2014543445 A JP 2014543445A JP 2014533726 A JP2014533726 A JP 2014533726A
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- Prior art keywords
- carbamide
- solution
- high purity
- purity crystalline
- concentration
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- 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
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- 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
-
- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (2)
- カルバミド結晶化および乾燥から成って、高純度結晶カルバミドを水性のカルバミド溶液が+30℃から+130℃(溶液が400V−600Vの範囲の電圧で電気透析により浄化される)までの温度まで加熱されるという点を特徴とする水性のカルバミド溶液から作り出す方法。
- 90%の集中で90−130℃まで、70%の集中の70−80℃まで、50%の集中で50−60℃まで請求項1(水性のカルバミド溶液が30%の集中で20−30℃まで加熱されるという点を特徴とする)に一致していて、より方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU2012/001014 WO2013077775A2 (ru) | 2011-11-23 | 2012-12-03 | Способ получения кристаллического карбамида высокой очистки |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2014533726A true JP2014533726A (ja) | 2014-12-15 |
JP2014533726A5 JP2014533726A5 (ja) | 2015-07-23 |
JP6067736B2 JP6067736B2 (ja) | 2017-01-25 |
Family
ID=52144940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2014543445A Expired - Fee Related JP6067736B2 (ja) | 2012-12-03 | 2012-12-03 | 高純度結晶性カルバミドを生成する方法 |
Country Status (2)
Country | Link |
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JP (1) | JP6067736B2 (ja) |
KR (1) | KR101735170B1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62108852A (ja) * | 1985-11-08 | 1987-05-20 | Mitsui Toatsu Chem Inc | 尿素合成工程中の吸収用冷却器の温度制御法 |
JP2000281638A (ja) * | 1999-03-26 | 2000-10-10 | Snow Brand Milk Prod Co Ltd | 尿素の分離方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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2012
- 2012-12-03 KR KR1020147013717A patent/KR101735170B1/ko active IP Right Grant
- 2012-12-03 JP JP2014543445A patent/JP6067736B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62108852A (ja) * | 1985-11-08 | 1987-05-20 | Mitsui Toatsu Chem Inc | 尿素合成工程中の吸収用冷却器の温度制御法 |
JP2000281638A (ja) * | 1999-03-26 | 2000-10-10 | Snow Brand Milk Prod Co Ltd | 尿素の分離方法 |
Also Published As
Publication number | Publication date |
---|---|
KR101735170B1 (ko) | 2017-05-18 |
KR20160057951A (ko) | 2016-05-24 |
JP6067736B2 (ja) | 2017-01-25 |
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