Production method of food additive white carbon black

A technology of food additives and production methods, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve problems such as poor fluidity and easy caking, and achieve improved porosity, high oil absorption value, and keep dry and flowing sexual effect

Inactive Publication Date: 2016-06-29
通化双龙化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problems of powdery medicine (food) easy to agglomerate and poor fluidity after storage for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The specific operation steps of the production method of food additive white carbon black are as follows:

[0021] 1. Refined water glass

[0022] Take 40m3 water glass dissolved by steam, configure it into water glass with a specific gravity of 1.080g / cm3, filter it through a plate and frame, and take the clear liquid for later use.

[0023] 2. Synthesis of silica

[0024] Add 22m3 base material into a 55m3 reaction kettle, add 5m3 water at the same time, pass in steam to raise the temperature, start stirring when the temperature rises to 50°C, continue to heat up, start adding sulfuric acid dropwise when the temperature reaches 86°C, add 0.2% sulfuric acid dropwise per hour m3, react until the pH value is between 10-11, start the second stage reaction, add water glass and sulfuric acid dropwise at the same time, add 11m3 dropwise to water glass per hour, add 0.27m3 dropwise to sulfuric acid per hour, and react until the pH value is between 10-11 Stop the dropwise ad...

Embodiment 2

[0032] The specific operation steps of the production method of food additive white carbon black are as follows:

[0033] 1. Refined water glass

[0034] Take 50m3 of water glass dissolved by steam, configure it into water glass with a specific gravity of 1.085g / cm3, filter it through a plate and frame, and take the clear liquid for later use.

[0035] 2. Synthesis of silica

[0036] Add 23m3 base material into a 55m3 reaction kettle, add 7m3 water at the same time, pass in steam to raise the temperature, start stirring when the temperature rises to 45°C, continue to heat up, start adding sulfuric acid dropwise when the temperature reaches 87°C, add 0.21% sulfuric acid dropwise per hour m3, react until the pH value is between 10-11, start the second stage reaction, add water glass and sulfuric acid dropwise at the same time, add 10m3 dropwise to water glass per hour, add 0.19m3 dropwise to sulfuric acid per hour, and react until the pH value is between 10-11 Stop the dropwis...

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Abstract

The invention relates to a production method of an inorganic powder material, in particular to a production method of food additive white carbon black. White carbon black precipitates for a synthetic reaction, wherein a certain quantity of prepared sodium silicate solution is put into a reaction kettle and serves as a backing material, then 5 m<3> of water is added, vapor is introduced, stirring starts when temperature is raised to 50-55 DEG C, temperature continues to be raised to 86-88 DEG C, reaction time is 40 min, and a pH value is controlled between 9 and 11; secondly, sodium silicate and dilute sulphuric acid are added into the reaction kettle according to the flow for synthesis reaction, reaction time is 50 min, reaction temperature is 86-88 DEG C, and a pH value is controlled between 10 and 11 during reaction; thirdly, dilute sulphuric acid continues to be added, a terminal point pH value is adjusted to be 4-5, stirring continues, and after aging is performed for 30 min, stirring stops. By optimizing technological parameters, the requirements of improving the porosity and enhancing the adsorption performance are met, and the defects that in a common precipitation method, the porosity of white carbon black is low, and the adsorption performance is poor are overcome.

Description

technical field [0001] The invention relates to a production method of an inorganic powder material, in particular to a production method applied to a food additive white carbon black. Background technique [0002] In the prior art, precipitated white carbon black is a widely used inorganic functional powder material, mainly used in common rubber, silicone rubber, paint, ink, pesticide, papermaking, food additives and other fields. The production method of white carbon black used as a food additive is mainly the precipitation method, and its disadvantages are that the raw material is not food grade, and the ordinary precipitation method has the disadvantages of low porosity, poor adsorption and cannot be added to food. Contents of the invention [0003] The object of the invention is to provide a method for producing food additive white carbon black. It solves the technical problem that the powdered medicine (food) is easy to agglomerate and has poor fluidity after being ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/193
CPCC01B33/193C01P2004/61C01P2006/12
Inventor 石清源
Owner 通化双龙化工股份有限公司
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