Coated sodium percarbonate material as well as preparation method and application thereof

A technology of sodium percarbonate and coating, which is applied in chemical instruments and methods, preparation of detergent mixture compositions, organic peroxy/inorganic peroxy compound compositions, etc., can solve the problems of difficulty in long-term storage, stability to be improved, and the like, To achieve the effect of high humidity resistance and stability

Active Publication Date: 2021-06-01
河南省生物基材料产业研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when sodium percarbonate is applied to the daily chemical washing industry, its downstream products are mainly granular detergent particles. Although the coated sodium percarbonate can i...

Method used

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  • Coated sodium percarbonate material as well as preparation method and application thereof
  • Coated sodium percarbonate material as well as preparation method and application thereof
  • Coated sodium percarbonate material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of preparation method of coating sodium percarbonate material, concrete steps are as follows:

[0036] (1) Take 0.125kg of sodium phytate to prepare a sodium phytate solution with a mass fraction of 5%, and take 0.45kg of magnesium sulfate to prepare a magnesium sulfate solution with a mass fraction of 15%;

[0037] (2) Preheat the temperature of the fluidized bed to 70°C, put 100kg of sodium percarbonate in the fluidized bed, spray the sodium phytate solution in step (1) on the sodium percarbonate, and raise the temperature to 120°C for One-time coating requires a coating thickness of 0.1mm to 0.3mm. Among them, the fluidized bed operating speed is 4 tons / h, and the liquid spraying speed is 1 cubic meter / h. During operation, the fluidized bed operating speed can be adjusted according to the actual situation. To adjust, the particle size of sodium percarbonate coated once in step (2) is between 1mm-3mm;

[0038] (3) Continue to spray the magnesium sulfate soluti...

Embodiment 2

[0041] A kind of preparation method of coating sodium percarbonate material, concrete steps are as follows:

[0042] (1) Take 0.175kg of sodium phytate to prepare a sodium phytate solution with a mass fraction of 7%, and take 0.3kg of magnesium sulfate to prepare a magnesium sulfate solution with a mass fraction of 10%;

[0043] (2) Preheat the temperature of the fluidized bed to 75°C, put 100kg of sodium percarbonate in the fluidized bed, spray the sodium phytate solution in step (1) on the sodium percarbonate, and raise the temperature to 110°C for One-time coating requires a coating thickness of 0.1mm to 0.3mm. Among them, the fluidized bed operating speed is 4 tons / h, and the liquid spraying speed is 1 cubic meter / h. During operation, the fluidized bed operating speed can be adjusted according to the actual situation. To adjust, the particle size of sodium percarbonate coated once in step (2) is between 1mm-3mm;

[0044] (3) Continue to spray the magnesium sulfate solution ...

Embodiment 3

[0047] A kind of preparation method of coating sodium percarbonate material, concrete steps are as follows:

[0048] (1) Take 0.25kg of sodium phytate to prepare a sodium phytate solution with a mass fraction of 10%, and take 0.36kg of magnesium sulfate to prepare a magnesium sulfate solution with a mass fraction of 12%;

[0049] (2) Preheat the temperature of the fluidized bed to 80°C, put 100kg of sodium percarbonate in the fluidized bed, spray the sodium phytate solution in step (1) on the sodium percarbonate, and raise the temperature to 130°C for One-time coating requires a coating thickness of 0.1mm to 0.3mm. Among them, the fluidized bed operating speed is 4 tons / h, and the liquid spraying speed is 1 cubic meter / h. During operation, the fluidized bed operating speed can be adjusted according to the actual situation. To adjust, the particle size of sodium percarbonate coated once in step (2) is between 1mm-3mm;

[0050] (3) Continue to spray the magnesium sulfate soluti...

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Abstract

The invention belongs to the technical field of washing assistants, and particularly relates to a coated sodium percarbonate material as well as a preparation method and application thereof. According to the invention, a reversible coating material layer is formed outside sodium percarbonate to prepare the coated sodium percarbonate material with high moisture-proof stability and good release performance. Magnesium phytate or calcium phytate formed by sodium phytate and magnesium sulfate, magnesium chloride or calcium chloride is used as a coating layer, and the coating layer is wrapped by a bio-based material and is environmentally friendly and free of pollution. And the wrapped sodium percarbonate is difficult to dissolve in water, has high moisture-proof stability and can be stored for a long time. During use, the wrapping layer can be decomposed through phytase, and sodium percarbonate is released. The problems of sodium percarbonate coating and difficult coating decomposition are thoroughly solved.

Description

technical field [0001] The invention belongs to the technical field of washing aids, and in particular relates to a coating sodium percarbonate material and a preparation method and application thereof. Background technique [0002] With the continuous enhancement of people's awareness of energy saving and environmental protection, sodium percarbonate began to replace sodium perborate and gradually occupied the market. Sodium percarbonate is an unstable complex formed by hydrogen bonding of sodium carbonate, hydrogen peroxide and water. Sodium percarbonate is chemically unstable and easy to decompose at high temperature. The stability of active oxygen is very low, and it is easy to decompose when it encounters water and heavy metal ions. A small amount of moisture will cause its decomposition, and trace amounts of iron, copper, cobalt and other heavy metal ions will accelerate its decomposition. Synthetic zeolite also has a strong catalytic effect on its decomposition. At ...

Claims

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Application Information

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IPC IPC(8): C11D3/39C11D3/386C11D3/60C11D7/42C11D7/18C11D7/60C11D11/00
CPCC11D3/3951C11D3/394C11D3/3935C11D3/3905C11D3/3917C11D3/38636C11D11/0017
Inventor 郑凤云赵红阳陈玮何民会陈志勇刘千河闫勇赖玉龙王雪邢燕燕魏丽丽陈志娟刘丽娜田文敏叶小好李晓昌
Owner 河南省生物基材料产业研究院有限公司
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