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Preparation method of mixed organic acid and salts thereof

A technology of mixing organic acids and heteropolyacids, which is applied in the preparation of organic compounds, carboxylate preparations, organic chemistry, etc., can solve the problems of polluting the environment, endangering human health, and low utilization efficiency, so as to achieve wide application and reduce pollution , the effect of low production cost

Inactive Publication Date: 2017-08-25
合肥利夫生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional way of use is direct incineration, which not only has low utilization efficiency, but also pollutes the environment and endangers human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing mixed organic acids and their salts, comprising the following steps: taking cellulose and adding it to an acidic aqueous solution, adjusting the temperature to 75°C, and after insulated and stirring for 24 hours, adding an oxidizing agent and a catalyst, adjusting the temperature to 100°C, and the pressure to 8MPa, Insulated for 30 hours to obtain mixed organic acids and their salts.

Embodiment 2

[0048] A preparation method of a mixed organic acid and its sodium salt, comprising the following steps: taking hemicellulose with a length ≤ 20 cm and a diameter ≤ 5 cm, adding it to an aqueous solution of chlorosulfonic acid, adjusting the temperature to 0° C., and then adding peroxide Sodium and silicotungstic acid, adjust temperature to 10°C, pressure to 10MPa, keep warm for 1min, filter the filtrate, concentrate to obtain mixed organic acid and its sodium salt, wherein the weight ratio of hemicellulose to chlorosulfonic acid is 1:10, The weight ratio of hemicellulose to sodium peroxide is 1:100, and the weight ratio of hemicellulose to silicotungstic acid is 1:0.05.

Embodiment 3

[0050] A method for preparing a mixed organic acid and its potassium salt, comprising the following steps: taking lignin with a length ≤ 20 cm and a diameter ≤ 5 cm, adding it to an aqueous solution of potassium tert-butoxide, adjusting the temperature to 150° C., and stirring for 1 hour, adding dichrome Potassium acid potassium and potassium hydroxide, the temperature is adjusted to 300 ° C, the pressure is 0.1 MPa, and the heat preservation is 50 hours, the filtrate is filtered and concentrated to obtain a mixed organic acid and its potassium salt, wherein the weight ratio of lignin to potassium tert-butoxide is 1: 0.01, the weight ratio of lignin to potassium dichromate is 1:1, and the weight ratio of lignin to potassium hydroxide is 1:10.

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Abstract

The invention discloses a preparation method of a mixed organic acid and salts thereof. The preparation method of the mixed organic acid and the salts thereof comprises the following steps: taking a biomass, pretreating the biomass, reacting with oxidants and catalysts to obtain the mixed organic acid and the salts thereof, wherein the biomass is selected from at least one of cellulose, hemicelluloses, lignin, crop straw, corncob, Chinese silvergrass, pine, white birch and poplar. The preparation method of the mixed organic acid and the salts thereof is low in production cost, free of pollution to environment, simple in process, short in production cycle and high in yield, and is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of chemical substance preparation, in particular to a preparation method of mixed organic acids and salts thereof. Background technique [0002] A mixed organic acid containing aromatic rings and alicyclic rings, with functional groups such as carboxyl, hydroxyl, carbonyl, quinone, and methoxy attached to the rings, which can exchange, adsorb, complex, and chelate metal ions. As a polyelectrolyte, it has the functions of coagulation, peptization and dispersion. Widely used in various fields such as agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine and health, environmental protection, etc., spanning dozens of industries. It can be used as fertilizer, pesticide, veterinary drug, anti-drought agent, feed additive, medicine, health care product, cosmetic, petroleum additive, industrial water treatment agent, coal water slurry stabilizer, battery expansion agent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/00C07G99/00
CPCC07C51/00C07G99/00Y02P20/54
Inventor 李兴龙徐海郑法银李玉喜姜娜
Owner 合肥利夫生物科技有限公司
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