JP4545631B2 - 高純度尿素水の製造方法 - Google Patents
高純度尿素水の製造方法 Download PDFInfo
- Publication number
- JP4545631B2 JP4545631B2 JP2005123491A JP2005123491A JP4545631B2 JP 4545631 B2 JP4545631 B2 JP 4545631B2 JP 2005123491 A JP2005123491 A JP 2005123491A JP 2005123491 A JP2005123491 A JP 2005123491A JP 4545631 B2 JP4545631 B2 JP 4545631B2
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- Prior art keywords
- urea
- water
- urea water
- producing high
- ammonia
- 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.)
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- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 21
- 239000004202 carbamide Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000003463 adsorbent Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 32
- 229910021529 ammonia Inorganic materials 0.000 description 16
- 239000003054 catalyst Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000004090 dissolution Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000012071 phase Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Description
化学史研究 VOL20 NO3(1993) Chemical Economics Handboook−SRI(2001年)
尿素水の製造は尿素を水に溶解させることで行われる。一般的には尿素水は尿素濃度20〜60重量%、好ましくは25〜55重量%である。
温度を70℃とした以外は実施例1と同様に行った。
実施例1〜2及び比較例1〜2での尿素溶解後の気相のアンモニア濃度を測定した結果を示した。尚、アンモニア濃度は室温に冷却後に測定した。
Claims (1)
- 20重量%〜60重量%、10〜60℃で固体状尿素を電気伝導度が0.3mS/m以下の水に溶解させ、かかる尿素水をろ過する工程及びオイル吸着剤で処理する工程からなることを特徴とする高純度尿素水の製造法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005123491A JP4545631B2 (ja) | 2005-04-21 | 2005-04-21 | 高純度尿素水の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005123491A JP4545631B2 (ja) | 2005-04-21 | 2005-04-21 | 高純度尿素水の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006298828A JP2006298828A (ja) | 2006-11-02 |
JP4545631B2 true JP4545631B2 (ja) | 2010-09-15 |
Family
ID=37467324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005123491A Active JP4545631B2 (ja) | 2005-04-21 | 2005-04-21 | 高純度尿素水の製造方法 |
Country Status (1)
Country | Link |
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JP (1) | JP4545631B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007145796A (ja) * | 2005-03-17 | 2007-06-14 | Mitsui Chemicals Inc | 尿素水及びそれを用いた脱硝装置 |
JP5066852B2 (ja) * | 2006-07-10 | 2012-11-07 | 日本化成株式会社 | 油分含有固形尿素中の油分除去方法 |
JP2008280263A (ja) * | 2007-05-09 | 2008-11-20 | Mitsui Chemicals Inc | 高純度尿素水の製造方法 |
WO2010092671A1 (ja) * | 2009-02-10 | 2010-08-19 | ズードケミー触媒株式会社 | 金属水素化物含有排ガスの除害剤及び除害方法 |
JP5338488B2 (ja) * | 2009-06-03 | 2013-11-13 | 日本化成株式会社 | 高純度尿素水の製造方法 |
JP2010280595A (ja) * | 2009-06-03 | 2010-12-16 | Nippon Kasei Chem Co Ltd | 高純度尿素の製造方法 |
JP6043398B2 (ja) * | 2015-04-03 | 2016-12-14 | クラリアント触媒株式会社 | 金属水素化物含有排ガスの除害剤及び除害方法 |
JP2016169236A (ja) * | 2016-06-27 | 2016-09-23 | 日本化成株式会社 | 高純度尿素水の製造方法 |
CN112520919B (zh) * | 2020-11-17 | 2022-05-27 | 珠海格力智能装备有限公司 | 基于尿素机的净水方法和装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0857261A (ja) * | 1994-08-24 | 1996-03-05 | Babcock Hitachi Kk | 還元剤水溶液を用いる脱硝装置 |
JP2004290835A (ja) * | 2003-03-27 | 2004-10-21 | Mitsubishi Fuso Truck & Bus Corp | 尿素水およびそれを用いた脱硝装置 |
JP2006068680A (ja) * | 2004-09-03 | 2006-03-16 | Purearth Inc | 脱硝用還元剤組成物およびその製造方法 |
JP2006111602A (ja) * | 2004-10-18 | 2006-04-27 | Purearth Inc | 安定化された尿素水溶液およびその製造方法 |
JP2007145796A (ja) * | 2005-03-17 | 2007-06-14 | Mitsui Chemicals Inc | 尿素水及びそれを用いた脱硝装置 |
-
2005
- 2005-04-21 JP JP2005123491A patent/JP4545631B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0857261A (ja) * | 1994-08-24 | 1996-03-05 | Babcock Hitachi Kk | 還元剤水溶液を用いる脱硝装置 |
JP2004290835A (ja) * | 2003-03-27 | 2004-10-21 | Mitsubishi Fuso Truck & Bus Corp | 尿素水およびそれを用いた脱硝装置 |
JP2006068680A (ja) * | 2004-09-03 | 2006-03-16 | Purearth Inc | 脱硝用還元剤組成物およびその製造方法 |
JP2006111602A (ja) * | 2004-10-18 | 2006-04-27 | Purearth Inc | 安定化された尿素水溶液およびその製造方法 |
JP2007145796A (ja) * | 2005-03-17 | 2007-06-14 | Mitsui Chemicals Inc | 尿素水及びそれを用いた脱硝装置 |
Also Published As
Publication number | Publication date |
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JP2006298828A (ja) | 2006-11-02 |
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