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1. 发明授权

US08992654B2 High value organic-enhanced inorganic fertilizers 有权
标题翻译：高价值有机增强无机肥料
公开(公告)号：US08992654B2
公开(公告)日：2015-03-31
申请号：US13432709
申请日：2012-03-28
申请人： Gary L. Dahms , James P. Carr , Jeffrey C. Burnham , Barry R. Jarrett
发明人： Gary L. Dahms , James P. Carr , Jeffrey C. Burnham , Barry R. Jarrett
IPC分类号： C05F3/00 , C05F7/00 , C05F9/00 , C05F11/00 , C05D9/02 , C05D3/00 , B01J2/00 , B01J2/12
CPC分类号： B01J19/245 , B01J2/006 , B01J2/12 , B01J2219/00006 , B01J2219/00051 , B01J2219/00162 , B01J2219/24 , C05C3/00 , C05D3/00 , C05D9/02 , C05G3/0005 , C05G3/0058 , Y02W10/37
摘要： The invention is directed to manufacture of fertilizer having commercial levels of nitrogen supplemented with organic substances. The process treats organic matter with acid causing hydrolysis of organic polymers after which the mix is injected with nitrogen. The resultant sterilized and liquefied organic matter is disbursed over recycled material for the production of granules. Because the process allows for the controlled addition of acids and ammonia, desired levels of components can be achieved. The process is scalable, odor controlled and safe thereby allowing for the location of biosolid processing facilities in most any location. Further, the fertilizer of the invention provides a dual nitrogen-release profile when applied to crops. After application to soil, fertilizer of the invention releases an immediate bolus of nitrogen, similar to traditional ammonium sulfate, followed by continued slow release of nitrogen typically over a season.
摘要翻译：本发明涉及具有商业氮补充有机物质的肥料的制造。该方法用酸处理有机物质，引起有机聚合物的水解，之后用氮气注入混合物。所得到的无菌液化有机物质用于生产颗粒的再循环材料。因为该方法允许控制加入酸和氨，所以可以达到所需的组分水平。该过程是可扩展的，气味控制和安全的，从而允许在大多数任何位置的生物固体处理设施的位置。此外，当施用于作物时，本发明的肥料提供双重氮释放特征。在施用于土壤之后，本发明的肥料释放出立即的氮气，类似于传统的硫酸铵，随后在一个季节中通常持续缓慢释放氮气。

2. 发明申请

US20120247164A1 HIGH VALUE ORGANIC-ENHANCED INORGANIC FERTILIZERS 有权
标题翻译：高价值有机增强无机肥料
公开(公告)号：US20120247164A1
公开(公告)日：2012-10-04
申请号：US13432709
申请日：2012-03-28
申请人： Gary L. Dahms , James P. Carr , Jeffrey C. Burnham , Barry R. Jarrett
发明人： Gary L. Dahms , James P. Carr , Jeffrey C. Burnham , Barry R. Jarrett
IPC分类号： C05F11/08 , B01J19/00 , C05F7/00 , C05F11/00 , C05F3/00
CPC分类号： B01J19/245 , B01J2/006 , B01J2/12 , B01J2219/00006 , B01J2219/00051 , B01J2219/00162 , B01J2219/24 , C05C3/00 , C05D3/00 , C05D9/02 , C05G3/0005 , C05G3/0058 , Y02W10/37
摘要： The invention is directed to manufacture of fertilizer having commercial levels of nitrogen supplemented with organic substances. The process treats organic matter with acid causing hydrolysis of organic polymers after which the mix is injected with nitrogen. The resultant sterilized and liquefied organic matter is disbursed over recycled material for the production of granules. Because the process allows for the controlled addition of acids and ammonia, desired levels of components can be achieved. The process is scalable, odor controlled and safe thereby allowing for the location of biosolid processing facilities in most any location. Further, the fertilizer of the invention provides a dual nitrogen-release profile when applied to crops. After application to soil, fertilizer of the invention releases an immediate bolus of nitrogen, similar to traditional ammonium sulfate, followed by continued slow release of nitrogen typically over a season.
摘要翻译：本发明涉及具有商业氮补充有机物质的肥料的制造。该方法用酸处理有机物质，引起有机聚合物的水解，之后用氮气注入混合物。所得到的无菌液化有机物质用于生产颗粒的再循环材料。因为该方法允许控制加入酸和氨，所以可以达到所需的组分水平。该过程是可扩展的，气味控制和安全的，从而允许在大多数任何位置的生物固体处理设施的位置。此外，当施用于作物时，本发明的肥料提供双重氮释放特征。在施用于土壤之后，本发明的肥料释放出立即的氮气，类似于传统的硫酸铵，随后在一个季节中通常持续缓慢释放氮气。

3. 发明申请

US20170210674A9 PROCESS FOR TREATING SLUDGE AND MANUFACTURING BIOORGANICALLY-AUGMENTED HIGH NITROGEN-CONTAINING INORGANIC FERTILIZER 有权
公开(公告)号：US20170210674A9
公开(公告)日：2017-07-27
申请号：US13104127
申请日：2011-05-10
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F3/00 , C05F9/00 , C05F11/08 , C05F7/00
CPC分类号： C05C3/005 , C05B7/00 , C05C3/00 , C05C9/00 , C05D9/02 , C05F7/00 , C05G3/0041 , Y02A40/213 , C05D3/02 , C05F3/00
摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.

4. 发明授权

US08557013B2 Bioorganically-augmented high value fertilizer 有权
标题翻译：生物有机增产高价值肥料
公开(公告)号：US08557013B2
公开(公告)日：2013-10-15
申请号：US12981933
申请日：2010-12-30
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F15/00 , C05F9/00 , C05F3/00 , C05F3/02 , C05F7/00 , C05F11/00
CPC分类号： C05F11/00 , C05B7/00 , C05B17/00 , C05C1/00 , C05C3/00 , C05C9/00 , C05C11/00 , C05D1/00 , C05D9/02 , C05F3/00 , C05F3/06 , C05F7/00 , C05F9/00 , C05F11/08 , C05F17/00 , C05F17/0027 , C05G1/00 , C05G3/00 , Y02A40/205 , Y02A40/208 , Y02A40/213 , Y02A40/214 , Y02P20/129 , Y02P20/145 , Y02W30/43 , C05F5/008
摘要： The invention is directed to processes for treating biosolids that result in high-value, nitrogen-containing, slow-release, organically-augmented inorganic fertilizer that are competitive with less valuable or more costly conventional commercially manufactured fertilizers. The process involves conditioning traditional waste-water biosolids and processing the conditioned biosolids continuously in a high throughput manufacturing facility. The exothermic design and closed loop control of the primary reaction vessel decreases significantly the amount of power necessary to run a manufacturing facility. The process utilizes green technologies to facilitate decreased waste and enhanced air quality standards over traditional processing plants. The fertilizer produced from recovered biosolid waste is safe and meets or exceeds the United States Environment Protection Agency (USEPA) Class A and Exceptional Quality standards and is not subject to restrictions or regulations.
摘要翻译：本发明涉及用于处理生物固体的方法，其产生高价值，含氮，缓释，有机增强的无机肥料，其与较不有价值或更昂贵的常规商业制造的肥料竞争。该方法包括调节传统的废水生物固体，并在高产量制造设施中连续处理调节的生物固体。初级反应容器的放热设计和闭环控制显着降低了运行制造设施所需的功率。该过程利用绿色技术来促进减少浪费，提高空气质量标准。从回收的生物固体废物中生产的肥料是安全的，符合或超过美国环境保护局（USEPA）A类和卓越的质量标准，不受限制或规定。

5. 发明授权

US09695092B2 Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer 有权
公开(公告)号：US09695092B2
公开(公告)日：2017-07-04
申请号：US13104127
申请日：2011-05-10
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F3/00 , C05D9/02 , C05C3/00 , C05F7/00 , C05G3/00 , C05B7/00 , C05C9/00
CPC分类号： C05C3/005 , C05B7/00 , C05C3/00 , C05C9/00 , C05D9/02 , C05F7/00 , C05G3/0041 , Y02A40/213 , C05D3/02 , C05F3/00
摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.

6. 发明申请

US20110154873A1 BIOORGANICALLY-AUGMENTED HIGH VALUE FERTILIZER 有权
标题翻译：生物有机肥高价值肥沃
公开(公告)号：US20110154873A1
公开(公告)日：2011-06-30
申请号：US12981933
申请日：2010-12-30
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F7/00 , C05F3/00 , C05F11/08 , C05F11/00 , B01J19/00
CPC分类号： C05F11/00 , C05B7/00 , C05B17/00 , C05C1/00 , C05C3/00 , C05C9/00 , C05C11/00 , C05D1/00 , C05D9/02 , C05F3/00 , C05F3/06 , C05F7/00 , C05F9/00 , C05F11/08 , C05F17/00 , C05F17/0027 , C05G1/00 , C05G3/00 , Y02A40/205 , Y02A40/208 , Y02A40/213 , Y02A40/214 , Y02P20/129 , Y02P20/145 , Y02W30/43 , C05F5/008
摘要： The invention is directed to processes for treating biosolids that result in high-value, nitrogen-containing, slow-release, organically-augmented inorganic fertilizer that are competitive with less valuable or more costly conventional commercially manufactured fertilizers. The process involves conditioning traditional waste-water biosolids and processing the conditioned biosolids continuously in a high throughput manufacturing facility. The exothermic design and closed loop control of the primary reaction vessel decreases significantly the amount of power necessary to run a manufacturing facility. The process utilizes green technologies to facilitate decreased waste and enhanced air quality standards over traditional processing plants. The fertilizer produced from recovered biosolid waste is safe and meets or exceeds the United States Environment Protection Agency (USEPA) Class A and Exceptional Quality standards and is not subject to restrictions or regulations.
摘要翻译：本发明涉及用于处理生物固体的方法，其产生高价值，含氮，缓释，有机增强的无机肥料，其与较不有价值或更昂贵的常规商业制造的肥料竞争。该方法包括调节传统的废水生物固体，并在高产量制造设施中连续处理调节的生物固体。初级反应容器的放热设计和闭环控制显着降低了运行制造设施所需的功率。该过程利用绿色技术来促进减少浪费，提高空气质量标准。从回收的生物固体废物中生产的肥料是安全的，符合或超过美国环境保护局（USEPA）A类和卓越的质量标准，不受限制或规定。

7. 发明申请

US20080230484A1 PROCESS FOR TREATING SLUDGE AND MANUFACTURING BIOORGANICALLY-AUGMENTED HIGH NITROGEN-CONTAINING INORGANIC FERTILIZER 有权
标题翻译：处理污泥和生产生物有机高含氮无机肥料的方法
公开(公告)号：US20080230484A1
公开(公告)日：2008-09-25
申请号：US12033809
申请日：2008-02-19
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C02F1/52 , C02F1/68 , C05D11/00
CPC分类号： C05F5/00 , C05F3/00 , C05F7/00 , Y02A40/205 , Y02A40/209 , Y02A40/213 , Y02P20/145 , Y02W10/40 , C05F9/00 , C05G1/00
摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.
摘要翻译：本发明描述了一种用于处理污泥的新方法，其可以产生高氮有机增强的无机肥料，其包含可与传统肥料如磷酸铵，硫酸铵和尿素竞争的市政污泥或生物固体或有机污泥商品化肥市场。该方法利用脱水生物固体或有机污泥的触变性质，从生物固体或有机污泥中产生可抽出的糊状材料，然后用氧化剂处理以减少气味效应和酸。然后将该混合物与浓硫酸和/或磷酸和氨源或热或熔融的熔融物或硫酸铵/磷酸盐形成一种肥料混合物相互作用。本发明控制肥料混合物在反应容器中的热，大气压力和保留时间。当形成化肥熔体时，氨化随后通过具体使用蒸发的氨完成。本发明也可以是商业生产铵盐的附加物。本发明生产的肥料含有超过8wt。％氮，优选15wt。％氮。本发明的目标是针对各个城市废物处理厂的生物固体生产进行定制，以便使物流和责任最小化来保持本发明的肥料制造工厂的效果。

8. 发明申请

US20110265532A1 Process for Treating Sludge and Manufacturing Bioorganically-Augmented High Nitrogen-Containing Inorganic Fertilizer 有权
标题翻译：污泥处理工艺及生物有机增强高含氮无机肥料
公开(公告)号：US20110265532A1
公开(公告)日：2011-11-03
申请号：US13104127
申请日：2011-05-10
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F3/00 , C05F9/00 , C05F11/08 , C05F7/00
CPC分类号： C05C3/005 , C05B7/00 , C05C3/00 , C05C9/00 , C05D9/02 , C05F7/00 , C05G3/0041 , Y02A40/213 , C05D3/02 , C05F3/00
摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.
摘要翻译：本发明描述了一种用于处理污泥的新方法，其可以产生高氮有机增强的无机肥料，其包含可与传统肥料如磷酸铵，硫酸铵和尿素竞争的市政污泥或生物固体或有机污泥商品化肥市场。该方法利用脱水生物固体或有机污泥的触变性质，从生物固体或有机污泥中产生可抽出的糊状材料，然后用氧化剂处理以减少气味效应和酸。然后将该混合物与浓硫酸和/或磷酸和氨源或热或熔融的熔融物或硫酸铵/磷酸盐形成一种肥料混合物相互作用。本发明控制肥料混合物在反应容器中的热，大气压力和保留时间。当形成化肥熔体时，氨化随后通过具体使用蒸发的氨完成。本发明也可以是商业生产铵盐的附加物。本发明生产的肥料含有超过8wt。％氮，优选15wt。％氮。本发明的目标是针对各个城市废物处理厂的生物固体生产进行定制，以便使物流和责任最小化来保持本发明的肥料制造工厂的效果。

9. 发明授权

US07947104B2 Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer 有权
标题翻译：污泥处理工艺，生产有机增强高含氮无机肥料
公开(公告)号：US07947104B2
公开(公告)日：2011-05-24
申请号：US12033809
申请日：2008-02-19
申请人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
发明人： Jeffrey C. Burnham , James P. Carr , Gary L. Dahms
IPC分类号： C05F3/00 , C05F11/00 , C05C9/00 , C05C9/02 , C05B7/00 , C05D1/00 , C05D9/02
CPC分类号： C05F5/00 , C05F3/00 , C05F7/00 , Y02A40/205 , Y02A40/209 , Y02A40/213 , Y02P20/145 , Y02W10/40 , C05F9/00 , C05G1/00
摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.
摘要翻译：本发明描述了一种用于处理污泥的新方法，其可以产生高氮有机增强的无机肥料，其包含可与传统肥料如磷酸铵，硫酸铵和尿素竞争的市政污泥或生物固体或有机污泥商品化肥市场。该方法利用脱水生物固体或有机污泥的触变性质，从生物固体或有机污泥中产生可抽出的糊状材料，然后用氧化剂处理以减少气味效应和酸。然后将该混合物与浓硫酸和/或磷酸和氨源或热或熔融的熔融物或硫酸铵/磷酸盐形成一种肥料混合物相互作用。本发明控制肥料混合物在反应容器中的热，大气压力和保留时间。当形成化肥熔体时，氨化随后通过具体使用蒸发的氨完成。本发明也可以是商业生产铵盐的附加物。本发明生产的肥料含有超过8wt。％氮，优选15wt。％氮。本发明的目标是针对各个城市废物处理厂的生物固体生产进行定制，以便使物流和责任最小化来保持本发明的肥料制造工厂的效果。

10. 发明授权

US08057569B2 Organic recycling with metal addition 有权
标题翻译：有机回收与金属添加
公开(公告)号：US08057569B2
公开(公告)日：2011-11-15
申请号：US12847630
申请日：2010-07-30
申请人： Jeffrey C. Burnham , Gary L. Dahms
发明人： Jeffrey C. Burnham , Gary L. Dahms
IPC分类号： C05F7/00 , C05F11/00 , C05D9/02
CPC分类号： C05C3/00 , C05B7/00 , C05B17/00 , C05F3/00 , C05F5/008
摘要： The invention is directed to methods for producing a granular nitrogen fertilizer from an organic material comprising adding a metallic salt to said organic material to form a slurry. Preferably the organic material comprises dewatered biosolids and contains water from a scrubber. Metallic salts that can be used comprise a salt of iron, zinc, or a mixture thereof. Preferred iron salts comprises ferric sulfate or ferric oxide, and preferred zinc salts comprises zinc sulfate or zinc oxide. Preferably, the metallic salt is mixed with an acid such as sulfuric acid to form an acidified metal salt. Slurry pH ranges from approximately 2-2.5. The acidified metal salt is added to the organic material in sufficient quantity to lower viscosity of the slurry such that the resulting fluid does not hinder fluid flow during operation. When the metallic salt comprises acidified ferric sulfate or ferrous sulfate, sufficient iron can be present to produce a fertilizer product with 0.1 weight percent to 10 weight percent iron sulfate calculated on a dry weight basis. The invention is also directed to fertilizer products made by the methods of the invention. Preferred products are granules and the metallic salt increases product hardness. Fertilizer granules preferably contain metal that is bioavailable to a plant when used as a fertilizer. Solubility of the metal of the product in water is enhanced, and the product is low staining.
摘要翻译：本发明涉及从有机材料制备颗粒状氮肥的方法，包括向所述有机材料中加入金属盐以形成浆料。优选地，有机材料包括脱水生物固体并含有来自洗涤器的水。可以使用的金属盐包括铁，锌或其混合物的盐。优选的铁盐包括硫酸铁或氧化铁，优选的锌盐包括硫酸锌或氧化锌。优选地，金属盐与酸如硫酸混合以形成酸化的金属盐。浆液pH范围约2-2.5。将酸化的金属盐以足够的量加入到有机材料中以降低浆料的粘度，使得所得流体在操作期间不阻碍流体流动。当金属盐包括酸化的硫酸铁或硫酸亚铁时，可以存在足够的铁以产生以干重计算的0.1重量％至10重量％的硫酸铁的肥料产品。本发明还涉及通过本发明的方法制备的肥料产品。优选的产品是颗粒剂，金属盐提高了产品的硬度。当用作肥料时，肥料颗粒优选含有对植物生物可利用的金属。产品的金属在水中的溶解度增强，产品染色浅。

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