Method for separating sulfide from lignin

A separation method, lignin technology, applied in the field of separation of sulfide in lignin, can solve problems such as not suitable for sulfide removal and high cost

Inactive Publication Date: 2015-03-25
徐娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods are costly and are not s...

Method used

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Embodiment Construction

[0011] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0012] A method for separating sulfides in lignin, characterized in that it comprises the steps of:

[0013] (1) Put lignin and Thiobacillus into the reactor at a ratio of 5:1;

[0014] (2) Stir and react for 2 hours, yellow particles will appear;

[0015] (3) Precipitate and separate the above-mentioned reacted mixture.

[0016] The invention uses microorganisms to remove sulfur, which has no effect on other characteristics of lignin, and no other chemical residues, and the lignin after removing sulfide can be used in industries such as medicine and food.

[0017]

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Abstract

The invention relates to a method for separating sulfide from lignin. The method is characterized by comprising the following steps: adding lignin and thiobacillus into a reaction kettle at the ratio of 5 to 1; stirring and reacting for 2 hours to form yellow particles; and participating and separating the reacted mixture. According to the method disclosed by the invention, sulphur is removed with microorganisms; the other characteristics of the lignin are not affected; no other chemical residues exist; and the lignin from which sulfide is removed can be applied to the industries such as medicines and foods.

Description

[0001] technical field [0002] The invention relates to a method for separating sulfide in lignin. . [0003] Background technique [0004] At present, after most lignin is prepared, there are still some sulfide residues, which leads to the very limited use of lignin in some fields. At present, the methods used in other fields to remove sulfide are physical and chemical methods such as air stripping, chemical precipitation, and oxidation. . These methods are costly and are not suitable for the removal of sulfides in lignin. Contents of the invention [0005] Aiming at the prior art, the invention provides a biochemical method for removing sulfide in lignin. [0006] The technical scheme of the present invention to solve the above technical problems is as follows: a method for separating sulfide in lignin, characterized in that it comprises the following steps: [0007] (1) Put lignin and Thiobacillus into the reactor at a ratio of 5:1; [0008] (2) Stir and react fo...

Claims

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Application Information

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IPC IPC(8): C08H7/00
Inventor 徐娟
Owner 徐娟
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