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

Biomass charcoal-enveloped water-retaining controlled-release fertilizer and preparation method thereof

A technology of biomass charcoal and slow-release fertilizer, applied in fertilizer mixture, fertilization device, application and other directions, can solve the problems of restricting the popularization and application of fertilizer, environmental pollution, high price, etc., achieve excellent slow-release effect, reduce frequent use, save money effect of spending

Inactive Publication Date: 2015-10-14
MAANSHAN KEBANG ECO FERTILIZER
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of them use fat-soluble substances in the production process, which is easy to pollute the environment after application, and the price is expensive, which limits the popularization and application of this type of fertilizer.

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
  • Biomass charcoal-enveloped water-retaining controlled-release fertilizer and preparation method thereof
  • Biomass charcoal-enveloped water-retaining controlled-release fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A biochar-coated water-retaining slow-release fertilizer, characterized in that it is made of the following raw materials in parts by weight: 30 parts by weight of corn stalks, 30 parts by weight of plantain wood chips, 100 parts by weight of sodium hydroxide solution, 10 parts by weight of fine-pore silica gel, and 10 parts by weight of ammonium bicarbonate 26. Calcium phosphate 16, potassium sulfate 15, magnesium chloride 10, zinc sulfate 3, binder 5 and appropriate amount of water;

[0027] The binder is made of the following raw materials in parts by weight: polyvinyl alcohol 15, limestone powder 3, coal tar 4, sodium bicarbonate 1, chitin 2, sodium dodecylbenzene sulfonate 2, tributyl phosphate 0.5, ethanol 6 and water 50; the preparation method is to mix and dilute ethanol and water in a reaction kettle, then add coal tar, sodium dodecylbenzenesulfonate, sodium bicarbonate and tributyl phosphate, and heat to 70~ Stir at 80°C at a constant temperature of 350-600r / m...

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

No PUM Login to View More

Abstract

The invention discloses a biomass charcoal-enveloped water-retaining controlled-release fertilizer and a preparation method thereof. The fertilizer is prepared from the raw materials of, by weight, 25-40 parts of corn straw, 20-35 parts of musa basjoo tree wood chips, 100-140 parts of a 5wt% sodium hydroxide solution, 10-15 parts of fine-pore silica gel, 20-26 parts of ammonium bicarbonate, 12-16 parts of calcium phosphate, 10-15 parts of potassium sulfate, 6-10 parts of magnesium chloride, 3-6 parts of zinc sulfate, 5-7 parts of a binding agent and a proper amount of water. According to the invention, straw is soaked with the low-concentration alkali liquor before charring. After ball milling, the material is divided into a floccule part and a woody part, and the woody part with a high charcoal yield is used for charring. Excellent biomass charcoal has high adsorption capacity, and has water retention and fertilizer retention capacities. The fertilizer is pollution-free, and has an excellent sustained-release effect. With the fertilizer, fertilizer usage frequency can be reduced, and cost can be saved in various aspects of production.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a biochar-coated water-retaining slow-release fertilizer and a preparation method thereof. Background technique [0002] Slow-release fertilizers can not only improve fertilizer use efficiency, but also reduce the negative impact of fertilization on the environment, which has attracted extensive attention of scholars in recent years. The current research on coated slow-release fertilizers mainly focuses on the selection and development of coating materials. Organic polymer coated slow-release fertilizers can slow down nutrient release and improve fertilizer use efficiency, which has been widely recognized. [0003] However, most of them use fat-soluble substances in the production process, which is easy to cause pollution to the environment after application, and the price is high, which limits the popularization and application of this type of fertilizer. Theref...

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
IPC IPC(8): C05G3/00
Inventor 张彤彤赵广福周浩陈永山
Owner MAANSHAN KEBANG ECO FERTILIZER
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