JP2007534585A5 - 尿素含有顆粒肥料を製造する方法でのビウレットおよび遊離アンモニアの軽減 - Google Patents

尿素含有顆粒肥料を製造する方法でのビウレットおよび遊離アンモニアの軽減 Download PDF

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JP2007534585A5
JP2007534585A5 JP2006551746A JP2006551746A JP2007534585A5 JP 2007534585 A5 JP2007534585 A5 JP 2007534585A5 JP 2006551746 A JP2006551746 A JP 2006551746A JP 2006551746 A JP2006551746 A JP 2006551746A JP 2007534585 A5 JP2007534585 A5 JP 2007534585A5
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Prior art keywords
biuret
reduction
granular fertilizer
free ammonia
containing granular
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JP2006551746A
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JP5101890B2 (ja
JP2007534585A (ja
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Priority claimed from DE102004005907A external-priority patent/DE102004005907B4/de
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英国特許第１，４０４，０９８号明細書に記載されている通り、ビウレットの生成は実験式
２０ＣＮ２Ｈ４ ←→ Ｏ２Ｃ２Ｎ３Ｈ５ ＋ ＮＨ３
に従って進行し、１分子のビウレットが生成されないことで同様に１分子のＮＨ３の生成が阻止される。尿素顆粒を製造する際に自己調節遠心ポンプを本発明に従って使用する場合には、排ガス中のアンモニア含有量が慣用の方法に比較して１０％より多く低減される。
図２には、図１に記載の従来技術と比較して蒸発器３のための２０ｍの高さの台が無く、蒸発器3は造粒機５と同じ高さに配置されている。導管路９を通って到達する濃縮された尿素溶液は自己調節遠心ポンプ１８によって導管路１０を通って造粒機５の分配システム１１に導かれる。遠心ポンプ１８はこの構成方式に従って導管１９を通って蒸発器３のガス空間に連結されている。
JP2006551746A 2004-02-05 2005-01-15 尿素含有顆粒肥料を製造する方法でのビウレットおよび遊離アンモニアの軽減 Active JP5101890B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004005907.1 2004-02-05
DE102004005907A DE102004005907B4 (de) 2004-02-05 2004-02-05 Anlage zur Herstellung von biuretarmem harnstoffhaltigem Düngemittelgranulat
PCT/EP2005/000367 WO2005075383A1 (de) 2004-02-05 2005-01-15 Verminderung von biuret und freiem ammoniak bei einem verfahren zur herstellung harnstoffhaltigen düngemittelgranulats

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JP2007534585A JP2007534585A (ja) 2007-11-29
JP2007534585A5 true JP2007534585A5 (ja) 2008-01-17
JP5101890B2 JP5101890B2 (ja) 2012-12-19

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US (1) US7753985B2 (ja)
EP (1) EP1711447B1 (ja)
JP (1) JP5101890B2 (ja)
CN (1) CN1956937A (ja)
DE (1) DE102004005907B4 (ja)
PL (1) PL1711447T3 (ja)
RU (1) RU2363687C2 (ja)
WO (1) WO2005075383A1 (ja)

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EP2119489A1 (en) * 2008-05-14 2009-11-18 Uhde Fertilizer Technology B.V. Method for reducing aerosol emissions in a urea granulation plant
EP2746244A1 (en) 2012-12-21 2014-06-25 Uhde Fertilizer Technology B.V. Method for reducing the visible downwind detached plume opacity
EP2832439A1 (en) 2013-08-01 2015-02-04 Uhde Fertilizer Technology B.V. Reactor for producing nitrogen-containing fertilizer granules
CN103449878B (zh) * 2013-08-06 2014-12-10 深圳市芭田生态工程股份有限公司 降低高塔造粒复合肥缩二脲含量的方法及其生产设备
TW201529530A (zh) 2013-08-23 2015-08-01 Koch Agronomic Services Llc 脲及氮穩定劑組合物及其製造和使用方法與系統
IN2014CH00114A (ja) 2014-01-09 2015-07-10 Shell Int Research
CN107674002B (zh) * 2017-09-22 2023-10-27 河南心连心蓝色环保科技有限公司 一种低缩二脲含量车用尿素粉末的生产装置及其生产方法
DE102019118702A1 (de) * 2019-07-10 2021-01-14 Thyssenkrupp Ag Reduzierung der biuretgeneration in der harnstoffproduktion

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