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Method for producing insect-resistant fulvic acid by using tobacco waste

A technology of tobacco waste and insect resistance, applied in the application, fertilizer mixture, organic chemistry and other directions, can solve the problem of backlog pollution of tobacco waste, and achieve the effects of improving stress resistance, buffering capacity and low cost

Inactive Publication Date: 2012-07-25
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The problem solved by the present invention is to provide a method for producing insect-resistant fulvic acid by using tobacco waste, which not only solves the problem of backlog pollution of tobacco waste, but also makes reasonable use of tobacco waste, turning waste into treasure, and avoiding Environmental pollution, and by preparing fulvic acid with insect resistance, good economic benefits can be achieved

Method used

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  • Method for producing insect-resistant fulvic acid by using tobacco waste
  • Method for producing insect-resistant fulvic acid by using tobacco waste
  • Method for producing insect-resistant fulvic acid by using tobacco waste

Examples

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Embodiment 1

[0027] A method for producing insect-resistant fulvic acid from tobacco waste, comprising the following steps:

[0028] 1) Tobacco waste such as cigarette rods is chopped into 2cm long pieces with a diameter of 2-3cm; then, in terms of mass parts, 100 parts of tobacco waste are placed in a mixing reactor, and 50 parts of water are sprayed while stirring until After the straw is fully wetted, spray 0.05 parts of sulfuric acid as a catalyst, add 80 parts of 40% nitric acid as an oxidant, and place it at room temperature for 1 to 2 hours;

[0029] 2) move the mixture after placing in the aging reactor, and pass into steam (the flow of steam is 80m 3 / h), start timing when the material temperature reaches 90°C, control the temperature at 95-100°C, and keep it for 2h;

[0030] 3) Move the mixed material after oxidative degradation to the extractor, add 85 parts of 3% sodium hydroxide or potassium hydroxide solution as the extractant while stirring, and extract for 2 hours under th...

Embodiment 2

[0032] 1) Tobacco waste such as cigarette rods is chopped into small sections of 4 cm in length and 1-2 cm in diameter; then 100 parts of tobacco waste are placed in a mixing reactor in parts by mass, and 60 parts of water are sprayed while stirring until After the straw is fully wetted, spray 2 parts of sulfuric acid as a catalyst, add 90 parts of 30% hydrogen peroxide as an oxidant, and place it at room temperature for 1 to 2 hours;

[0033] 2) move the mixture after placing in the aging reactor, and pass into steam (the flow of steam is 80m 3 / h), start timing when the material temperature reaches 85°C, control the temperature at 90-95°C, and keep it for 4h;

[0034] 3) Move the mixed material after oxidative degradation to the extractor, add 85 parts of 2% sodium hydroxide solution as the extractant while stirring, and extract for 2.5 hours at PH≤5.5 and 70°C; then move the material to Squeeze in a solid-liquid separator, collect all liquid parts, and filter to obtain ins...

Embodiment 3

[0036] 1) Tobacco waste such as cigarette rods is chopped into small sections of 4 cm in length and 1-2 cm in diameter; then 100 parts of tobacco waste are placed in a mixing reactor in parts by mass, and 60 parts of water are sprayed while stirring until After the stalk is fully wetted, spray 2 parts of sulfuric acid as a catalyst, mix 40% nitric acid and 30% hydrogen peroxide as an oxidizing agent according to the volume ratio of nitric acid: hydrogen peroxide = 0.3: 0.5, and place it at room temperature for 1-2 hours;

[0037] 2) move the mixture after placing in the aging reactor, and pass into steam (the flow of steam is 85m 3 / h), start timing when the material temperature reaches 85°C, control the temperature at 90-100°C, and keep it for 3h;

[0038] 3) Move the mixed material after oxidative degradation to the extractor, add 85 parts of 2% potassium hydroxide solution as the extractant while stirring, and extract for 2.5 hours at PH≤5.5 and 70°C; then move the material...

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Abstract

The invention discloses a method for producing insect-resistant fulvic acid by using tobacco waste. The method comprises the following steps of: shredding tobacco waste serving as a raw material including tobacco rods, tobacco forks, tobacco stalks, tobacco flowers, cured tobacco residues, bottom leaves, a part of top leaves and the like produced during the production of tobacco, spraying water for wetting completely, and spraying a catalyst and an oxidant; and oxidizing, and extracting and separating oxidation-degraded materials to obtain liquid insect-resistant fulvic acid which contains a certain amount of nicotine and contains nitrogen, phosphorus, potassium, calcium, magnesium, other trace elements and active ingredients such as soluble saccharides and the like. Due to the adoption of the method, the problem of waste of piled tobacco waste is solved, the tobacco waste is utilized reasonably, environmental pollution is avoided, insect-resistant high-activity fulvic acid is prepared, and good economic benefit and ecological benefit can be achieved.

Description

technical field [0001] The invention belongs to the technical field of tobacco waste utilization, and relates to a method for producing insect-resistant fulvic acid by utilizing tobacco waste. Background technique [0002] Tobacco is one of the important economic crops in our country. Smoking is an indispensable part of the cultural life of hundreds of millions of smokers, and it is also an important source of income for the state and local taxes. According to statistics, the national tobacco planting area has reached more than 15 million mu. Except for the normal tobacco leaves that can be used for deep processing, there are still a considerable amount of tobacco waste such as tobacco stalks, tobacco stems, fireworks, tobacco branches, bottom leaves and some top leaves. Among them, the dry matter of tobacco stalks is as high as 1.95 million tons, and the discarded fresh tobacco leaves are 1.8 million tons. How to turn such a huge amount of tobacco waste into wealth and ret...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07G99/00C08H99/00C05G3/02C05G3/60
Inventor 张立新张喜峰高梅
Owner NORTHWEST A & F UNIV
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