Production system, preparation method and components of toothpaste-grade sodium monofluorophosphate

A sodium monofluorophosphate, production system technology, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve problems such as unsterilized sodium monofluorophosphate, harmful waste gas, harmful impurities, etc.

Inactive Publication Date: 2021-01-15
天津长隆骏驰科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system and method solve the problems that the sodium monofluorophosphate produced in the prior a

Method used

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  • Production system, preparation method and components of toothpaste-grade sodium monofluorophosphate
  • Production system, preparation method and components of toothpaste-grade sodium monofluorophosphate
  • Production system, preparation method and components of toothpaste-grade sodium monofluorophosphate

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Embodiment Construction

[0084] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings. It should be noted that this embodiment is descriptive, not restrictive, and cannot thereby limit the protection scope of the present invention.

[0085] A production system for sodium monofluorophosphate, the production system includes a raw material mixing and deployment device 1, a melting reaction furnace 2, a cooler, a pulverizer, a particle size control device 5, a packaging machine, and a transfer bin 4 for transferring materials on a production line and the transfer bin hoist 3, wherein the feed end of the raw material mixing and dispensing device is used to put sodium hexametaphosphate, sodium fluoride and phosphorus pentoxide in different parts by weight and fully mix the three, and the outlet of the raw material mixing and distributing device T...

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Abstract

The invention provides a production system, a preparation method and components of toothpaste-grade sodium monofluorophosphate, wherein the content of the sodium monofluorophosphate, the content of free fluorine and the PH value can be accurately controlled, the prepared product is high in purity, and the method is easy to operate. According to the invention, the sodium monofluorophosphate production system provides technical support for the preparation method of sodium monofluorophosphate, and specifically comprises a raw material mixing and blending device, a melting reaction furnace, a particle size regulation and control device, a transfer bin for transferring materials on a production line, and a transfer bin elevator, wherein the feeding end of the raw material mixing and blending device is used for feeding sodium hexametaphosphate, sodium fluoride and phosphorus pentoxide in different parts by weight and fully mixing the sodium hexametaphosphate, the sodium fluoride and the phosphorus pentoxide, the discharging end of the raw material mixing and blending device is communicated with the melting reaction furnace, condensed sodium monofluorophosphate is screened out to obtain afinished product with qualified granularity through the particle size regulation and control device, the transfer bin elevator is used for lifting the transfer bin, and the transfer bin is used for transferring and conveying materials between the devices.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a production system, preparation method and components of toothpaste-grade sodium monofluorophosphate. Background technique [0002] Sodium monofluorophosphate (MFP) is a high value-added fluorine-containing inorganic fine chemical. It is an internationally recognized third-generation toothpaste additive for excellent caries prevention and tooth desensitization. It can also be used as a preservative, bactericide, Cosolvent, cleaning agent for metal surface oxide, corrosion inhibitor, fluoridation of drinking water, etc. [0003] At present, the preparation methods of sodium monofluorophosphate at home and abroad are mainly divided into three categories: melting method, liquid phase neutralization method, and gas phase fluorination method. [0004] The melting method uses sodium metaphosphate (or positive, coke, sodium polyphosphate, etc.) and sodium fluoride as raw m...

Claims

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Application Information

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IPC IPC(8): C01B25/455
CPCC01B25/455C01P2006/80
Inventor 刘如峰马明马小骥
Owner 天津长隆骏驰科技有限公司
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