Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for co-producing sulfur-based compound fertilizer with sulfur-based nitrogen and potassium fertilizer

A technology of sulfur-based compound fertilizer and sulfur-based nitrogen, which is applied in urea compound fertilizer, potash fertilizer, nitrogen fertilizer and other directions, can solve the problems of complex technological process, and achieve the effects of low energy and material consumption, convenient transportation and high reaction rate.

Active Publication Date: 2022-03-04
郑秀兴
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical process of this method is also relatively complicated, and has not been well realized industrialization

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for co-producing sulfur-based compound fertilizer with sulfur-based nitrogen and potassium fertilizer
  • A method for co-producing sulfur-based compound fertilizer with sulfur-based nitrogen and potassium fertilizer
  • A method for co-producing sulfur-based compound fertilizer with sulfur-based nitrogen and potassium fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1 - "7-0-33" sulfur-based nitrogen and potassium fertilizer co-production of "15-15-15" sulfur-based compound fertilizer

[0048] Raw material: Potassium chloride: K 2 O=60%, water content=1%; sulfuric acid: H 2 SO 4 = 98%, H 2 O=2%; synthetic ammonia: NH 3 =99.5%, H 2 O=0.5%; Monoammonium Phosphate: N=11%, P 2 o 5 = 44%, H 2 O=2%; DAP: N=18%, P 2 o 5 = 46%, H 2 O=2%; Urea: N=46.0%, H 2 O=1%.

[0049] 1. In the potassium chloride conversion equipment, put potassium chloride at a flow rate of 20.00t / h and sulfuric acid at a flow rate of 23.84t / h, the reaction temperature is 110°C-130°C, and when the conversion rate reaches 85%, the output Contains K 2 O%=34.02, Cl%=3.84 molten state potassium bisulfate material A=35.27t / h (dry basis), output HCl=7.90t / h (dry basis) simultaneously, absorb HCl by-product hydrochloric acid with water or be used for Manufacture of other chlorine-containing products.

[0050] 2. A part of the molten state potassium bisu...

Embodiment 2

[0068] Example 2——“5-0-36” sulfur-based nitrogen and potassium fertilizer co-production of “17-14-10” sulfur-based compound fertilizer

[0069] Raw material: Potassium chloride: K 2 O=60%, water content=1%; sulfuric acid: H 2 SO 4 = 98%, H 2 O=2%; synthetic ammonia: NH 3 =99.5%, H 2 O=0.5%; Monoammonium Phosphate: N=11%, P 2 o 5 = 44%, H 2 O=2%; DAP: N=18%, P 2 o 5 = 46%, H 2 O=2%; Ammonium Nitrate: N=32%, P 2 o 5 = 4%, H 2 O=1%.

[0070] 1. In the potassium chloride conversion equipment, put potassium chloride at a flow rate of 20.00t / h and sulfuric acid at a flow rate of 23.84t / h, the reaction temperature is 110°C-130°C, and when the conversion rate reaches 85%, the output Contains K 2 O%=34.02, Cl%=3.84 molten state potassium bisulfate material A=35.27t / h (dry basis), output HCl=7.90t / h (dry basis) simultaneously, absorb HCl by-product hydrochloric acid with water or be used for Manufacture of other chlorine-containing products.

[0071] 2. A part of the mo...

Embodiment 3

[0089] Example 3 - "4-0-40" sulfur-based nitrogen and potassium fertilizer co-production "16-15-14" sulfur-based compound fertilizer

[0090] Raw material: Potassium chloride: K 2 O=60%, water content=1%; sulfuric acid: H 2 SO 4 = 98%, H 2 O=2%; synthetic ammonia: NH 3 =99.5%, H 2 O=0.5%; DAP: N=18%, P 2 o 5 = 46%, H 2 O=2%; Urea: N=46%, H2O=1%.

[0091] 1. In the potassium chloride conversion equipment, put potassium chloride at a flow rate of 20.00t / h and sulfuric acid at a flow rate of 23.84t / h, the reaction temperature is 110°C-130°C, and when the conversion rate reaches 85%, the output Contains K 2 O%=34.02, Cl%=3.84 molten state potassium bisulfate material A=35.27t / h (dry basis), output HCl=7.90t / h (dry basis) simultaneously, absorb HCl by-product hydrochloric acid with water or be used for Manufacture of other chlorine-containing products.

[0092] 2. A part of the molten state potassium bisulfate material A1 is added to the liquid distribution tank of the n...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

In the present invention, a part of the molten potassium bisulfate from the potassium chloride conversion equipment is prepared into a potassium bisulfate solution with an appropriate amount of water, and then sent to the reactor of the nitrogen and potassium fertilizer production equipment for neutralization with ammonia to form a reaction slurry, and then After cooling, a liquid-solid phase mixture material is formed, and then filtered, dried, and cooled to obtain sulfur-based nitrogen and potassium fertilizer products; the filtered liquid phase material is used as a mother liquor for recycling. When the N content in the mother liquor reaches a certain concentration, part of the mother liquor and the remaining Molten potassium bisulfate is sent to compound fertilizer production plant to produce sulfur-based compound fertilizer. The sulfur-based nitrogen and potassium fertilizer produced by the present invention can be used directly as a fertilizer or as a raw material for the production of sulfur-based compound fertilizers; when used as a fertilizer, it is the same as the sulfur-based compound fertilizer and is widely applicable to various crops, especially Tobacco, potatoes, grapes, citrus, sugarcane and other crops that avoid chlorine; when used as raw materials for the production of sulfur-based compound fertilizers, the product has good physical properties, is convenient for transportation, and is conducive to industrialization.

Description

technical field [0001] The invention relates to the technical field of compound fertilizer production, in particular to a method for co-producing sulfur-based compound fertilizers with sulfur-based nitrogen and potassium fertilizers. Background technique [0002] Current nitrogen and potassium fertilizer (or compound fertilizer) products can be divided into two categories: chlorine-based nitrogen and potassium fertilizer (or compound fertilizer) and sulfur-based nitrogen and potassium fertilizer (or compound fertilizer) according to the source of potassium nutrients. Chlorine-based nitrogen and potassium fertilizer (or compound fertilizer) refers to the potassium nutrient derived from potassium chloride, and sulfur-based nitrogen and potassium fertilizer (or compound fertilizer) refers to the potassium nutrient derived from potassium sulfate. Compared with chlorine-based nitrogen and potassium fertilizers (or compound fertilizers), sulfur-based nitrogen and potassium fertili...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
CPCC05B7/00C05C3/00C05D1/02C05C9/00C05C1/00
Inventor 郑秀兴梁红江关风禹吴舒宋安新
Owner 郑秀兴
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com