CN1138728C - 脲醛复合肥的生产方法 - Google Patents
脲醛复合肥的生产方法 Download PDFInfo
- Publication number
- CN1138728C CN1138728C CNB981090680A CN98109068A CN1138728C CN 1138728 C CN1138728 C CN 1138728C CN B981090680 A CNB981090680 A CN B981090680A CN 98109068 A CN98109068 A CN 98109068A CN 1138728 C CN1138728 C CN 1138728C
- Authority
- CN
- China
- Prior art keywords
- urea
- formaldehyde
- fertilizer
- fertilizers
- nitrogen
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/40—Fertilisers incorporated into a matrix
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB981090680A CN1138728C (zh) | 1998-06-02 | 1998-06-02 | 脲醛复合肥的生产方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB981090680A CN1138728C (zh) | 1998-06-02 | 1998-06-02 | 脲醛复合肥的生产方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1198425A CN1198425A (zh) | 1998-11-11 |
CN1138728C true CN1138728C (zh) | 2004-02-18 |
Family
ID=5219870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB981090680A Expired - Fee Related CN1138728C (zh) | 1998-06-02 | 1998-06-02 | 脲醛复合肥的生产方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1138728C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100400475C (zh) * | 2005-06-20 | 2008-07-09 | 上海化工研究院 | 无干燥工序的复混肥料的制造方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1487761B1 (en) * | 2002-03-26 | 2013-12-04 | Koch Agronomic Services, LLC | Method for producing a particulate urea-formaldehyde polymer as slow release nitrogen fertilizer |
CN1948234B (zh) * | 2006-01-09 | 2012-10-31 | 安徽省司尔特肥业股份有限公司 | 高氮硫基氮磷钾缓释新型复合肥及其生产方法 |
CN101165012B (zh) * | 2006-10-18 | 2011-06-08 | 汉枫缓释肥料(黑龙江)有限公司 | 含脲甲醛的高塔缓释复合肥及其生产方法 |
CN101353270B (zh) * | 2008-09-08 | 2012-07-25 | 中国海洋石油总公司 | 一种低醛长效脲醛缓释肥的制备方法 |
CN101391905B (zh) * | 2008-10-28 | 2012-05-23 | 北京市农林科学院 | 脲醛肥料与脲醛复合肥料及其制备方法 |
CN101759481B (zh) * | 2009-11-20 | 2012-05-16 | 山东金正大生态工程股份有限公司 | 一种高塔缓释复合肥料及其制备方法 |
CN101891563B (zh) * | 2010-06-17 | 2013-01-30 | 刘峰 | 一种脲乙氨酸法生产的缓控释肥 |
CN102241547B (zh) * | 2011-04-29 | 2014-01-15 | 安徽省天享肥业有限责任公司 | 一种尿熔吸释同步氮肥的制备方法 |
CN103030462B (zh) * | 2012-12-12 | 2015-03-11 | 四川好时吉化工有限公司 | 一种水溶性脲醛胶、其制造方法及用其提高水溶性复混肥料颗粒强度的方法 |
CN104109054A (zh) * | 2013-04-18 | 2014-10-22 | 云中英 | 一种脲醛缓释增效肥料的生产工艺及生产设备 |
CN103819278B (zh) * | 2013-05-08 | 2016-01-27 | 桂林集琦生化有限公司 | 一种高强度脲醛缓释肥及其制备方法 |
CN103319237A (zh) * | 2013-06-19 | 2013-09-25 | 山东天山丰耘生态肥业有限公司 | 一种三合一包膜控释肥生产方法 |
CN103880549B (zh) * | 2014-03-27 | 2016-06-15 | 清华大学 | 一种空心陶瓷微珠附载脲醛缓释化肥的方法 |
CN113511946A (zh) * | 2021-08-23 | 2021-10-19 | 卡力(烟台)农业发展有限公司 | 一种肥料的挤压造粒工艺 |
-
1998
- 1998-06-02 CN CNB981090680A patent/CN1138728C/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100400475C (zh) * | 2005-06-20 | 2008-07-09 | 上海化工研究院 | 无干燥工序的复混肥料的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1198425A (zh) | 1998-11-11 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Li Tao Assignor: Zhu Yongsui Contract fulfillment period: 2007.12.21 to 2018.6.2 contract change Contract record no.: 2008320000002 Denomination of invention: Method for producing urea-formaldehyde compound fertilizer Granted publication date: 20040218 License type: Exclusive license Record date: 2008.2.25 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.21 TO 2018.6.2 Name of requester: LI TAO Effective date: 20080225 |
|
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Li Tao Assignor: Zhu Yongsui Contract record no.: 2008320000002 Date of cancellation: 20111108 |
|
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhenjiang COBIS industry limited company Assignor: Zhu Yongsui Contract record no.: 2011320010130 Denomination of invention: Method for producing urea-formaldehyde compound fertilizer Granted publication date: 20040218 License type: Exclusive License Open date: 19981111 Record date: 20111123 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040218 Termination date: 20160602 |