CN1785937A

CN1785937A - Multifunction chemical fertilizer coating agent and its preparation method

Info

Publication number: CN1785937A
Application number: CN 200410065454
Authority: CN
Inventors: 邵建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-06
Filing date: 2004-12-06
Publication date: 2006-06-14

Abstract

The present invention relates to a multifunctional chemical fertilizer wrapping agent and its preparation method. It is composed of several trace elements, rare earth element chelate, antiblocking agent, binding agent and surface brightening agent, etc. It is characterized by that it utilizes waste and discard animal and plant oil and fat to make them undergo the partial saponification treatment to obtain the invented surfactant which is good antiblocking agent for chemical fertilizer, in which the brightening agents of waste engine oil and asphalt are added to make emulsification, at the same time the several trace elements chelated by amino acid and humic acid as ligand and chelate salt of rare earth element are added, then they are emulsified and homogenized so as to obtain the invented chemical fertilizer wrapping agent.

Description

A kind of multifunction chemical fertilizer coating agent and preparation method thereof

The present invention relates to a kind of production method of novel multifunctional chemical fertilizer coating agent.

Relevant by retrieval patent documentation, the present production method that does not retrieve the chemical fertilizer coating agent identical as yet with the present invention.In China's chemical fertilizers production, the production of N, P, K Nitrogen, Phosphorus and Potassium is progressively popularized, but owing to life-time service N, P, K, trace element in the plant can not get in time replenishing, it is to be shell with phosphate fertilizer that patent (application number 85101008) is introduced a kind of Wrapped fertilizer, is that tackiness agent wraps up with nitrogen phosphorus mud.Existing factory sneaks into granulation in N, P, the K Nitrogen, Phosphorus and Potassium with trace element fertilizer with its inorganic salt.This inorganic salt are met after the water dissolution very easily and PO ₄ ^-3React and lost efficacy.In order to address this problem, this technology adds trace element after by amino acid, humic acids chelating, be wrapped in the chemical fertilizer surface, simultaneously form water in oil emulsion through tensio-active agent emulsification, not only avoided contacting with the direct of N, P, K, and, effectively prevent to generate the water-insoluble that plant is difficult to absorb by chelatropic reaction.

The caking of chemical fertilizer is a great problem of chemical fertilizers production always, and existing anti-caking agent for fertilizer uses the yin, yang ionic surface active agent, though this anti-caking agent consumption is few, price is expensive, has improved the chemical fertilizers production cost.Another kind method is to use mineral oil to spray the surface, but consumption is big, and cost is high.It is raw material that the present invention adopts the depleted vegetable and animals oils, generates anion surfactant (number of patent application 00134367.x) after partly-hydrolysed reaction.Add discarded mineral oil (as machine oil), vegetable and animals oils formation emulsifying agent in this emulsifying agent again.Used water is diluted with arbitrary proportion during use.Because tensio-active agent and greasy dual function improve agglomeration preventing performance greatly.In the production that amino acid, humic acids microelement chelate is soluble in water.Form water in oil emulsifying agent.Be wrapped in the chemical fertilizer surface.After the oven dry, form the surperficial integument of light.

For making the said products, the technical solution used in the present invention such as Fig. 1.

Oil foot with waste animal and vegetable oil such as vegetable oil mill, the fat of tannery pig, ox, sheep etc., be converted into pure grease meter, add 30%NaOH or KOH20～50 part in per 100 parts of greases, divide 5～10 addings, reaction times is 60～100 minutes, Heating temperature is 80～115 ℃, treat that saponification finishes after, add 50～200 parts of depleted mineral oil or animal-plant oil, stir emulsification.With reference to " a kind of production of anti-caking agent for fertilizer " application number 00134367.x, applying date 2000.12.8.In addition amino acid, humic acids microelement chelate are made into concentration and are 100～200 parts of 10～30% solution, add in the emulsification pot and carried out stirring and emulsifying 10～30 minutes.Add 10～50 parts of water-soluble binders again, mix, behind the clarifixator homogeneous, be finished product.

The invention has the advantages that:

1, this technology is raw material with depleted animal-plant oil and mineral oil, is comprehensive utilization of resources, and cost is low, low price.Impurities can be decomposed into plant nutrient substance in the grease in soil, need not to separate, and is pollution-free to edatope.

2, amino acid humic acids trace element, rare earth chelate compound solubleness in water is big, and the dissolving back forms emulsion at aqueous phase through emulsification and grease, and stable performance is evenly distributed.Because inner complex is applied to the surface, the grease parcel is arranged again, avoided the untoward reaction between multiple element.Effective way for existing Nitrogen, Phosphorus and Potassium trace element supplement.

3, add part macromolecular water-soluble tackiness agent, both can strengthen the fastness of parcel, can play certain slow releasing function simultaneously.

The present invention is further illustrated below with reference to example.

Embodiment 1

In big iron pan, put 20Kg water, take by weighing 100Kg waste oil pin and place in the pot, be heated to 80～115 ℃, begin to add 30% NaOH30Kg, add 5Kg at every turn, divide to add for 5 times.Reaction to 60～100 minute, after saponification finished, other added the useless lard of 150Kg, stir, emulsification, intermediates A.Other gets zinc-amino acid chelate 2Kg, iron-amino acid chelate 1.5Kg, chelating amino acids manganese 1Kg, copper amino acid chelate 0.3Kg, chelating amino acids rare earth 2Kg, add dissolve in the 100Kg water B.Animal gelatin 2Kg is dissolved in the 50Kg water, makes adhesive C.A, B, three kinds of materials of C were added emulsion tank internal emulsification homogeneous 30 minutes, and 500Kg gets product.

Embodiment 2.

In big iron pan, hold 20Kg water, taking by weighing the useless lard that 100Kg tannery reclaims, placing in the pot, be heated to 80 ℃, beginning to add 30% KOH 40Kg, dividing 5 addings, adding 8Kg at every turn.Reacted 60～100 minutes, and added used oil 100Kg again, stirring, emulsification get product A.Other gets humic acids chelated iron 3Kg, humic acids Chelated Manganese 2Kg, and humic acids chelating zinc 2Kg, humic acids chelated copper 0.5Kg, humic acids rare earth 2.5Kg is dissolved in the 150Kg water, makes B liquid.Polyvinyl alcohol 1Kg is dissolved in the 50Kg water, makes adhesive C.A, B, three kinds of materials of C were added emulsion tank internal emulsification homogeneous 30 minutes, and 500Kg gets product.

Using method: products obtained therefrom of the present invention is diluted with 2～3 times of water, in stoving oven, be sprayed on the composite fertilizer surface, be coated composite fertilizer after the oven dry with the pressurized air atomisation.

Claims

1, a kind of multifunction chemical fertilizer coating agent is characterized in that being made up of compositions such as nutritive substances such as various trace elements, rare earth chelate compound, anti-hard caking agent, tackiness agent, brightening agents, and ratio can be according to the performance adjustment of chemical fertilizer.

2, various trace elements according to claim 1, rare earth element chelating salt are as sequestrant with aminoacids complex, humic acids.Elements such as chelating Fe, Cu, Mn, Zn, Mo, rare earth.The ratio of aminoacids complex and humic acids is 1: 0.1～2, the ratio of trace element rare earth element can be according to the soil regime flexible of various places, and scope is at Zn: Fe: Mn: Cu: Mo: rare earth=1: 0.1～2: 0.2～1.5: 0.1～0.5: 0.01～0.05: 0.1～1.5.

3, anti-hard caking agent according to claim 1 is the anion surfactant that animal-plant oil generates after alkali (KOH, NaOH) saponification.(number of patent application: December 8 2000 00134367.x time).

4, tackiness agent according to claim 1 can be water-soluble high-molecular compounds such as amylan, gelatin, carboxymethyl cellulose, sodium polyacrylate, polyvinyl alcohol.

5, brightening agent according to claim 1 can be a mineral oil, waste oils and fats etc.