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Method for extracting fulvic acid from sugar cane deep processing alcohol slops

A technology for deep processing of alcohol waste liquid, applied in botany equipment and methods, chemicals for biological control, animal repellants, etc., can solve problems such as not overcoming the technical problems of fulvic acid

Active Publication Date: 2012-08-08
叶长东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the application of molasses alcohol waste liquid to prepare fulvic acid, nor does it overcome the technical difficulties of using alcohol waste liquid to prepare fulvic acid

Method used

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  • Method for extracting fulvic acid from sugar cane deep processing alcohol slops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Concentrate 1 kg of alcohol waste liquid by heating under reduced pressure, evaporating and concentrating, controlling the pressure, and the evaporation temperature is 45°C±3°C. Stop heating when the weight percentage of dry matter in the concentrated liquid reaches 50%, and obtain a concentrated liquid; stir the liquid at a constant speed during the heating process. Then add concentrated sulfuric acid to the concentrated solution to make the mass concentration of sulfuric acid in the concentrated solution reach 30%, and age at 60±2°C for 20 hours to obtain an aged solution;

[0024] Alkaline the aged liquid with 1%wt sodium hydroxide solution, add the sodium hydroxide solution under stirring, measure the pH of the solution, adjust the addition amount of the sodium hydroxide solution, stop adding the sodium hydroxide solution when the pH is 9 , precipitation occurs in the solution, and the precipitated part is removed by filtration to obtain solution I;

[0025] The sol...

Embodiment 2

[0029] Concentrate 1 kg of alcohol waste liquid by heating under reduced pressure, evaporating and concentrating, controlling the pressure, and the evaporation temperature is 40°C±3°C. Stop heating when the weight percentage of dry matter in the concentrated liquid reaches 60%, and obtain a concentrated liquid; stir the liquid at a constant speed during the heating process. Then add concentrated sulfuric acid to the concentrated solution to make the mass concentration of sulfuric acid in the concentrated solution reach 30%, and age at 60±2°C for 20 hours to obtain an aged solution;

[0030] Alkaline the aging liquid with 0.5%wt sodium hydroxide solution, add sodium hydroxide solution under stirring, measure the pH of the solution, adjust the amount of sodium hydroxide solution added, stop adding sodium hydroxide solution when the pH is 8 , precipitation occurs in the solution, and the precipitated part is removed by filtration to obtain solution I;

[0031] The solution I obta...

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Abstract

The invention relates to a method for extracting fulvic acid from sugar cane deep processing alcohol slops. The method comprises the following steps of: heating the alcohol slops under reduced pressure for performing evaporation concentration, and adding sulfuric acid for ageing; alkalifying an ageing solution with a sodium hydrate solution, and separating to obtain a dissolved part; acidifying the dissolved part with a hydrochloric acid solution, and separating to obtain a dissolved part; and adding acetone into the obtained dissolved part, centrifugally separating, and concentrating an acetone solution to obtain fulvic acid. According to the method, alcohol slops are fully utilized, and high-activity fulvic acid is produced.

Description

Technical field [0001] The invention belongs to the field of agricultural chemical preparation, and specifically relates to a method for extracting fulvic acid from sugarcane deep processing alcohol waste liquid. Background technique [0002] Fulvic acid is a component of humic acid. It can be separated from humic acid derived from coal or directly extracted from peat and weathered coal. It can also be artificially produced using biotechnology methods using agricultural and forestry scraps as raw materials. In addition to fulvic acid, humic acid also contains brown humic acid and black humic acid. Fulvic acid has the general characteristics and properties of humic acid. It also has characteristics that ordinary humic acid does not have. The main differences and characteristics of fulvic acid and humic acid can be summarized in the following three aspects: First, the molecular weight of fulvic acid is small, so it is easily absorbed and utilized by organisms; second, the fu...

Claims

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Application Information

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IPC IPC(8): C08H99/00C07G99/00A01N61/00A01P21/00
Inventor 叶长东
Owner 叶长东