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Preparation method of compound ecological fertilizer from plant stalks

A technology for plant straws and ecological fertilizers, which is applied to the formulation and preparation of compound ecological fertilizers by using plant straws, can solve the problems of low fermentation efficiency, mildew and deterioration, corrosion of equipment, etc., and achieves high degradation efficiency, short time, and no corrosion of equipment. Effect

Inactive Publication Date: 2016-05-25
CHENDU NEW KELI CHEM SCI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to provide a method of using plant straws to prepare compound ecological fertilizers, so as to solve the problems of low degradation and fermentation efficiency, high cost, corrosion of equipment, mildew and deterioration in the prior art of using straws as fertilizers

Method used

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  • Preparation method of compound ecological fertilizer from plant stalks

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Effect test

Embodiment 1

[0031] Preparation method of compound ecological fertilizer: First, weigh 30kg of toluene-absolute ethanol solution and 60kg of wheat straw with a particle size of about 100 mesh, stir slightly to make them evenly mixed, add 100kg of water, and heat up to 70°C, after 2 hours of treatment Filtration; then adjust the pH value of the mixed solution to 3.5-4.0 with 10% acetic acid solution by mass fraction, then adjust the pH value of the mixed solution to 6-7 with 10% sodium hydroxide solution by mass fraction, and filter after 4 hours of treatment. Then adjust the straw moisture content to about 40%. Then add 5kgS / Fe 2 o 3 Type solid superacid, and 150kg mass fraction is 15% acetic acid solution, and mix homogeneously. Then raise the temperature to 110° C., and react for 1.5 hours to effectively degrade the straw under the action of catalysis. Then add 5kg of distiller's grains, 15kg of bone meal, 15kg of bran, and 5kg of humic acid into the acidified straw system, isolate th...

Embodiment 2

[0033] Preparation method of compound ecological fertilizer: First, weigh 35kg of toluene-absolute ethanol solution and 70kg of wheat straw with a particle size of about 100 mesh, stir slightly to make them evenly mixed, add 100kg of water, and heat up to 90°C for 1.5h Then filter; then use 15% acetic acid solution to adjust the pH value of the mixed solution to 3.5~4.0, then adjust the pH value of the mixed solution to 6~7 with 15% sodium hydroxide solution, and filter after 5 hours of treatment. Then adjust the straw moisture content to about 40%. Then add 6kgS / Fe 3 o 4Type solid superacid, and 180kg mass fraction is 15% propionic acid solution, and mix homogeneously. Then raise the temperature to 120° C. and react for 1 hour, so that the straw can be effectively degraded under the action of catalysis. Then add 10kg of distiller's grains, 10kg of bone meal, 5kg of bran, and 5kg of humic acid into the acidified straw system, isolate the air, and make it continue to ferment...

Embodiment 3

[0035] Preparation method of compound ecological fertilizer: First, weigh 30kg of toluene-absolute ethanol solution and 60kg of corn stalks with a particle size of about 100 mesh, stir slightly to make them evenly mixed, add 100kg of water, and heat up to 70°C, after 2 hours of treatment Filtration; then adjust the pH value of the mixed solution to 3.5-4.0 with 10% acetic acid solution by mass fraction, then adjust the pH value of the mixed solution to 6-7 with 10% sodium hydroxide solution by mass fraction, and filter after 4 hours of treatment. Then adjust the straw moisture content to about 40%. Then add 5kgS / ZrO 2 Type solid superacid, and 150kg mass fraction are 15% succinic acid solution, and mix homogeneously. Then raise the temperature to 130°C and react for 0.5h, so that the straw can be effectively degraded under the action of catalysis. Then add 10kg of distiller's grains, 10kg of bone meal, 10kg of bran, and 10kg of humic acid into the acidified straw system, iso...

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Abstract

The invention relates to a preparation method of a compound ecological fertilizer from plant stalks. The compound fertilizer is prepared by degrading a main raw material of plant stalks under the action of small molecule organic acid in the presence of a solid super acid catalyst, and combining with distiller's grains, bone meal, bran leather, humic acid, and NPK fertilizer. The raw materials consist of, by weight, 60-80 parts of plant stalks, 5-10 parts of distiller's grains, 5-15 parts of bone meal, 5-15 parts of wheat bran, 5-10 parts of humic acid and 30-50 parts of NPK fertilizer. The method uses a catalytic degradation technology for preparation of the compound ecological fertilizer, reaches high catalytic degradation efficiency of stalks, completes the conversion from stalks to compound ecological fertilizer within 16h at the highest speed, and has the advantages of simple operation, low cost, recyclable catalyst, and no corrosion of equipment, and can quickly obtain the product. The prepared compound ecological fertilizer can effectively enhance fertilizer efficiency, stimulate crop growth, control pests and diseases, improve the quality of agricultural products, and the absorb soil pollutants, improve the water retention capacity of soil and fertilizer and improve soil structure, and is conducive to the sustainable development of agriculture.

Description

technical field [0001] The invention relates to the field of preparation of organic ecological fertilizers, in particular to a formula and a preparation method for preparing compound ecological fertilizers by utilizing plant stalks. Background technique [0002] my country is a large agricultural country with high output of various agricultural products and abundant crop straw resources. In the past, crop stalks were not effectively developed and utilized, and people often burned them. Straw incineration is not only a serious waste of resources, but also produces carbon dioxide, sulfur dioxide and other gases during the incineration process, causing serious damage to the environment. The smog it produces reduces visibility and directly affects the normal operation of roads, railways and civil aviation. Inhalable particles produced by incineration can cause diseases of the respiratory system. It can be seen that the harm of straw burning is huge. The full development and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F11/00C05F17/00
CPCC05B17/00C05F11/00C05F17/00C05F5/002C05F5/008C05F11/02Y02P20/584Y02W30/40
Inventor 陈庆曾军堂叶任海陈兵
Owner CHENDU NEW KELI CHEM SCI CO LTD
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