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A kind of method utilizing ferulic acid to regulate and prepare calcium carbonate crystal particles

A technology of ferulic acid and calcium carbonate, applied in the directions of calcium carbonate/strontium/barium, chemical instruments and methods, calcium/strontium/barium compounds, etc., can solve the problems of difficult control of reaction conditions, complicated preparation process, and high cost of organic matter sources

Inactive Publication Date: 2016-05-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the problems of complex preparation process for preparing calcium carbonate crystal particles with specific morphology and crystal form, high cost of organic matter sources, and difficult control of reaction conditions, etc., and simultaneously expand and control the organic matter sources for preparing calcium carbonate crystal particles, the purpose of the present invention is to provide A kind of method utilizing ferulic acid to regulate and prepare calcium carbonate crystal particles

Method used

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  • A kind of method utilizing ferulic acid to regulate and prepare calcium carbonate crystal particles
  • A kind of method utilizing ferulic acid to regulate and prepare calcium carbonate crystal particles
  • A kind of method utilizing ferulic acid to regulate and prepare calcium carbonate crystal particles

Examples

Experimental program
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Effect test

Embodiment 1

[0019] 1) Under the action of mechanical stirring, dissolve ferulic acid in distilled water and add 0.1mol / LBa(OH) 2 Adjust the pH value of the solution to form a ferulic acid organic matter solution of 10g / L, pH11;

[0020] 2) Under the action of mechanical stirring, add 30mL of 1.5mol / LpH=7.2 CaCl to 30mL of ferulic acid organic matter solution obtained in step 1) 2 solution, forming ferulic acid-CaCl 2 mixed growth system;

[0021] 3) Under the condition of stirring speed of 150r / min and 50℃, ferulic acid-CaCl obtained in step 2) 2 Add 30mL of 1.5mol / L Na at pH=7.2 dropwise to the mixed growth system 2 CO 3 In the solution, after the dropwise addition, cool the above solution to 23°C at room temperature to form ferulic acid-CaCl 2 with Na 2 CO 3 mixture;

[0022] 4) At 23°C, ferulic acid-CaCl obtained in step 3) 2 with Na 2 CO 3 The mixed solution was allowed to stand for crystallization for 20 hours, and the reaction system was vacuum filtered to obtain crystals...

Embodiment 2

[0024] 1) Under the action of mechanical stirring, dissolve ferulic acid in distilled water and add 0.1mol / LBa(OH) 2 Adjust the pH value of the solution to form a ferulic acid organic matter solution of 20g / L, pH13;

[0025] 2) Under the action of mechanical stirring, add 30mL of 1.5mol / LpH=7.2 CaCl to 30mL of ferulic acid organic matter solution obtained in step 1) 2 solution, forming ferulic acid-CaCl 2 mixed growth system;

[0026] 3) Under the condition of stirring speed of 100r / min and 40℃, ferulic acid-CaCl obtained in step 2) 2 Add 30mL of 1.5mol / L Na at pH=7.2 dropwise to the mixed growth system 2 CO 3 In the solution, after the dropwise addition, cool the above solution to 23°C at room temperature to form ferulic acid-CaCl 2 with Na 2 CO 3 mixture;

[0027] 4) At 23°C, ferulic acid-CaCl obtained in step 3) 2 with Na 2 CO 3 The mixed solution was allowed to stand for crystallization for 20 hours, and the reaction system was vacuum filtered to obtain crystals...

Embodiment 3

[0029] 1) Under the action of mechanical stirring, dissolve ferulic acid in distilled water and add 0.1mol / LBa(OH) 2 Regulate solution pH value, form the ferulic acid organic matter solution of 30g / L, pH7;

[0030] 2) Under the action of mechanical stirring, add 30mL of 1.5mol / LpH=7.2 CaCl to 30mL of ferulic acid organic matter solution obtained in step 1) 2 solution, forming ferulic acid-CaCl 2 mixed growth system;

[0031] 3) Under the condition of stirring speed of 250r / min and 30℃, ferulic acid-CaCl obtained in step 2) 2Add 30mL of 1.5mol / L Na at pH=7.2 dropwise to the mixed growth system 2 CO 3 In the solution, after the dropwise addition, cool the above solution to 23°C at room temperature to form ferulic acid-CaCl 2 with Na 2 CO 3 mixture;

[0032] 4) At 23°C, ferulic acid-CaCl obtained in step 3) 2 with Na 2 CO 3 The mixed solution was left to stand for crystallization for 20 hours, and the reaction system was vacuum filtered to obtain crystals, which were w...

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Abstract

The invention discloses a method for regulating and preparing calcium carbonate crystal particles by using ferulic acid. The main point of the method is to use the lignin monomer model compound ferulic acid as organic matter based on the principle of bionic mineralization, and explore how ferulic acid is produced by changing the concentration of ferulic acid, system temperature, system pH value, rotor speed and other process parameters. Adjust and prepare calcium carbonate crystal particles with different shapes and crystal forms, so as to synthesize calcium carbonate crystal particles that meet different technical fields. The process technology involved in the present invention is fast, efficient and environmentally friendly. Ferulic acid is introduced into the raw materials for preparing calcium carbonate crystal particles with different shapes and crystal forms as an organic control matrix to induce the nucleation, growth and phase transition process of CaCO3, which expands the Regulating the source of organic matter for the preparation of calcium carbonate crystal particles, and at the same time providing an innovative idea for resource utilization of residual lignin in pulping waste liquor, has significant environmental and social benefits.

Description

technical field [0001] The invention relates to a method for preparing calcium carbonate crystal particles, in particular to a method for preparing calcium carbonate crystal particles by using a lignin monomer model compound, ferulic acid, and belongs to the technical field of inorganic non-metallic materials. Background technique [0002] As a natural inorganic material, calcium carbonate is widely used in rubber, paint, paint, paper, printing, cosmetics, ink, cable, food, medicine, feed and other industries, and calcium carbonate products with different shapes and crystal forms have Different application functions and domains. However, since calcium carbonate in nature has a variety of particle shapes and crystal structures, it is difficult to form calcium carbonate crystal particles that meet the special needs of different industries and fields simply by using natural biomineralization. For this reason, it is necessary to adopt crystal form control means to control the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F11/18
CPCC01F11/183C01P2004/03
Inventor 张勇宋平平姚菊明
Owner ZHEJIANG SCI-TECH UNIV
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