Organic-inorganic polymerization water retention fertilizer and preparation method thereof

一种无机聚合、有机的技术，应用在有机-无机聚合保水肥料及其制备领域，能够解决达不到理想效果等问题，达到丙烯酸含量低、增强肥效、减小用量的效果

Inactive Publication Date: 2016-11-23
QINGDAO HEZIFEI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The compounding and coating technologies of the above-mentioned water-retaining slow-release fertilizers have their own advantages and disadvantages, and the ideal results cannot be achieved in production practice.

Method used

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  • Organic-inorganic polymerization water retention fertilizer and preparation method thereof
  • Organic-inorganic polymerization water retention fertilizer and preparation method thereof
  • Organic-inorganic polymerization water retention fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Prepare the following ingredients in parts by weight:

[0048] Acrylic 400 parts

[0049]Catalyst Aqueous sodium hydroxide solution, pH=8.5

[0050] Initiator Potassium persulfate 10 parts

[0051] Cross-linking agent ethylene glycol 20 parts

[0052] Inorganic nutrients 1700 parts of urea, 1500 parts of monoammonium phosphate, 3500 parts of potassium sulfate, 1000 parts of calcium nitrate, 1000 parts of magnesium sulfate, 150 parts of sodium silicate, 30 parts of zinc sulfate, 30 parts of sodium borate

[0053] 5 parts of biological enzyme (2 parts of protease, 3 parts of cellulase)

[0054] 25 parts of protein powder and 25 parts of cellulose powder.

[0055] Follow the steps below to prepare fertilizer:

[0056] 1) mixing acrylic acid with a catalyst, reacting for 15 minutes to obtain a neutralized prepolymer, and then adding the inorganic nutrients to the reaction system;

[0057] 2) Add inorganic nutrients, crosslinking agent and initiator to the neutralized ...

Embodiment 2

[0062] Prepare the following ingredients in parts by weight:

[0063] Acrylic 600 parts

[0064] Catalyst Aqueous sodium hydroxide solution, pH=11.7

[0065] Initiator Potassium persulfate 20 parts

[0066] Cross-linking agent ethylene glycol 30 parts

[0067] Inorganic nutrients 1800 parts of urea, 1600 parts of monoammonium phosphate, 3600 parts of potassium sulfate, 1100 parts of calcium nitrate, 1100 parts of magnesium sulfate, 250 parts of sodium silicate, 80 parts of zinc sulfate, and 80 parts of sodium borate

[0068] 15 parts of biological enzymes (5 parts of lipase, 5 parts of pectinase, 5 parts of enzyme)

[0069] 25 parts of fat, 25 parts of pectin, 30 parts of starch.

[0070] Follow the steps below to prepare fertilizer:

[0071] 1) mixing acrylic acid with a catalyst, reacting for 20 minutes to obtain a neutralized prepolymer, and then adding the inorganic nutrients to the reaction system;

[0072] 2) Add inorganic nutrients, crosslinking agents and initiat...

Embodiment 3

[0077] Prepare the following ingredients in parts by weight:

[0078] Acrylic 500 parts

[0079] Catalyst Aqueous sodium hydroxide solution, pH=9.5

[0080] Initiator Potassium persulfate 15 parts

[0081] Cross-linking agent ethylene glycol 25 parts

[0082] Inorganic nutrients 1750 parts of urea, 1550 parts of monoammonium phosphate, 3550 parts of potassium sulfate, 1050 parts of calcium nitrate, 1050 parts of magnesium sulfate, 200 parts of sodium silicate, 50 parts of zinc sulfate, and 50 parts of sodium borate

[0083] 10 parts of biological enzyme 10 parts of protease

[0084] 75 servings of protein powder.

[0085] Follow the steps below to prepare fertilizer:

[0086] 1) mixing acrylic acid with a catalyst, reacting for 20 minutes to obtain a neutralized prepolymer, and then adding the inorganic nutrients to the reaction system;

[0087] 2) Add inorganic nutrients, crosslinking agents and initiators to the neutralized prepolymer in sequence, control the temperatu...

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Abstract

The invention provides an organic-inorganic polymerization water retention fertilizer. The organic-inorganic polymerization water retention fertilizer is a copolymer formed by fusing and copolymerizing organic water retention monomers and inorganic nutrients under the action of a catalyst, biological enzymes and a modifying agent, and the copolymer has a three-dimensional netty hydrophilic group structure. A preparation method of the organic-inorganic polymerization water retention fertilizer comprises the steps that after a neutralized prepolymer is obtained through the organic monomers under the action of the catalyst, an initiator and a cross-linking agent are added, meanwhile, the inorganic nutrients and metasilicate are added, a solution is formed through full stirring, the biological enzymes are added for catalyzing, the copolymer is obtained after fusion and copolymerization, and pelleting and drying are carried out. Preferably, the catalyst is an inorganic alkaline solution. Preferably, the catalyst is selected from a sodium hydroxide solution, a potassium hydroxide solution, ammonia water and a calcium hydroxide solution.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to an organic-inorganic polymeric water-retaining fertilizer and a preparation method thereof. Background technique [0002] The preparation method of an organic-inorganic polymer water-retaining fertilizer of the present invention is a method of fusion and copolymerization of a polymer water-absorbing resin and an inorganic nutrient factor, so that it has the functions of water and fertilizer in one body - water and fertilizer preservation, slow release synchronization - double controlled release of water and fertilizer New water-retaining fertilizer materials with functions such as anti-disease and insect pests and soil conditioning functions. [0003] Its technical indicators: organic matter content ≥ 20%; water absorption multiple 10g / g-20g / g; total nutrients of nitrogen, phosphorus and potassium 35%-40%; total nutrients of calcium, magnesium, silicon and sulfur ≥ 5%; The nutrient re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80C05G5/12
CPCC05B7/00C05G3/00C05G5/12C05G3/40C05G3/80C05B17/00C05C1/00C05C5/04C05C9/00C05C11/00C05D1/02C05D5/00C05D9/00C05D9/02C05F1/002C05F11/00C08F220/06C05F11/08C08K3/28C08K3/30C08K2003/3045C08K5/21C08K3/38C08K2003/387Y02W30/40C08K3/32C08L33/02C05G1/00C08F2/001C08F2/10C08F292/00C08K2003/287C08K2003/322C05C5/00
Inventor 朱彦芳杜志勇朱弘智
Owner QINGDAO HEZIFEI BIOTECH CO LTD
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