JP6067736B2 - 高純度結晶性カルバミドを生成する方法 - Google Patents
高純度結晶性カルバミドを生成する方法 Download PDFInfo
- Publication number
- JP6067736B2 JP6067736B2 JP2014543445A JP2014543445A JP6067736B2 JP 6067736 B2 JP6067736 B2 JP 6067736B2 JP 2014543445 A JP2014543445 A JP 2014543445A JP 2014543445 A JP2014543445 A JP 2014543445A JP 6067736 B2 JP6067736 B2 JP 6067736B2
- Authority
- JP
- Japan
- Prior art keywords
- carbamide
- solution
- high purity
- purity crystalline
- aqueous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
-
- 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
-
- 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)
Description
この出願の発明に関連する先行技術文献情報としては、以下のものがある(国際出願日以降国際段階で引用された文献及び他国に国内移行した際に引用された文献を含む)。
(先行技術文献)
(特許文献)
(特許文献1) 露国特許第2041202号明細書
(特許文献2) ソビエト社会主義共和国連邦特許第953978号明細書
(特許文献3) 国際公開第1989/001468号
(特許文献4) 国際公開第2006/061082号
Claims (2)
- カルバミド水溶液から高純度結晶性カルバミドを生成する方法であって、カルバミドを結晶化し、且つ乾燥させる工程を有し、前記カルバミド水溶液は+30℃〜+130℃の温度まで加熱され、前記水溶液は400V〜600Vの電圧の電気透析によって精製される、方法。
- 請求項1記載の方法において、前記カルバミド水溶液は、30%の濃度で+30℃まで、50%の濃度で+40℃〜50℃まで、70%の濃度で+70℃〜80℃まで、90%及びそれ以上の濃度で+90℃〜130℃まで加熱される方法。
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 JP2014533726A (ja) | 2014-12-15 |
JP2014533726A5 JP2014533726A5 (ja) | 2015-07-23 |
JP6067736B2 true JP6067736B2 (ja) | 2017-01-25 |
Family
ID=52144940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
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 |
---|---|
JP (1) | JP6067736B2 (ja) |
KR (1) | KR101735170B1 (ja) |
Family Cites Families (3)
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 |
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 |
-
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
Also Published As
Publication number | Publication date |
---|---|
KR20160057951A (ko) | 2016-05-24 |
JP2014533726A (ja) | 2014-12-15 |
KR101735170B1 (ko) | 2017-05-18 |
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