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Preparation device and preparation method for polysilazane

A technology for polysilazane and a preparation device, applied in the chemical industry, can solve problems such as inability to completely separate, and achieve the effect of providing efficiency

Inactive Publication Date: 2015-10-28
福建省博涵能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current preparation equipment cannot completely separate the by-product ammonium chloride

Method used

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  • Preparation device and preparation method for polysilazane
  • Preparation device and preparation method for polysilazane
  • Preparation device and preparation method for polysilazane

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] like Figure 1-2 As shown, the embodiment of the present invention provides a preparation device for polysilazane, including a reactor 1 made of glass material with inner and outer double layers, the reactor 1 is fixed on a support frame 2, and the reactor 1 The inner layer is communicated with a first ammonia gas inlet pipe 4 connecting external ammonia through a condensation pipe 3, and the reactor 1 is also communicated with a raw material storage tank 6 through a raw material inlet pipe; the condensation pipe 3 is connected with a The cooler 5 for cooling the liquid is connected, and the outlet of the cold cutter is communicated with the outer layer of the reactor 1 through a first cooling liquid pipe 21; the inner layer of the reactor 1 is also communicated with a The product after reaction is separated the inner and outer double-l...

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Abstract

The invention relates to a preparation device and a preparation method for polysilazane. The preparation method comprises the following steps: inputting a raw material in a raw material storage tank into the inner layer of a double-layer reaction kettle through a raw material gas inlet pipe, cooling ammonia gas in a liquid ammonia storage tank into liquid ammonia, and inputting the liquid ammonia into the inner layer of the reaction kettle; injecting a cooling liquid into the outer layer of the reaction kettle; mixing and stirring the raw material and the liquid ammonia for a synthesis reaction by utilizing a stirring rod in the inner layer of the reaction kettle, and inputting the mixture obtained from the synthesis reaction into the inner layer of a double-layer product separator for product separation from the bottom of the inner layer of the reaction kettle; respectively inputting the by-product and the product which are obtained from the product separation into a by-product storage tank and a product storage tank; inputting ammonium chloride in the by-product storage tank into a hydraulic storage tank for circulating preparation through a pressurization conveying pump. The preparation device and the preparation method have the benefits that the bi-product obtained in the preparation process can be effectively separated from the product, continuous production can be ensured, and the production efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a polysilazane preparation device and a preparation method thereof. Background technique [0002] Polysilazanes are widely used in coatings and have excellent weather resistance, UV resistance, corrosion resistance, stain resistance, scratch resistance and heat resistance. At present, it can be prepared in a small amount in the experimental stage. The main methods are the reaction method of chlorosilane and amine and the reaction method of silazane and butyllithium. But present preparation device all can't separate the by-product ammonium chloride completely. Contents of the invention [0003] The object of the present invention is to address the above disadvantages and provide a polysilazane preparation device and a preparation method thereof, so as to realize the separation of by-products in the preparation process and improve work efficiency. [0004] The solution adopted...

Claims

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Application Information

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IPC IPC(8): B01J19/18C08G77/62
Inventor 李登仙
Owner 福建省博涵能源科技有限公司
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