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Industrial sodium nitrate new product and its preparation method

A manufacturing method, the technology of sodium nitrate, is applied in the direction of preparation and molding of alkali metal nitrate, and the liquid is divided into beads and granulated. block, good fluidity effect

Inactive Publication Date: 2003-03-05
TIANJIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the caking problem of some foreign products has been solved, the content of active ingredients has been reduced due to the addition of anti-caking agents, which will also affect the specific use of the product

Method used

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  • Industrial sodium nitrate new product and its preparation method
  • Industrial sodium nitrate new product and its preparation method

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Embodiment approach

[0023] The present invention is further stated below:

[0024] The industrial sodium nitrate product of the present invention is granular, and the individual shape of each particle is spherical, oval or other approximate shapes, and the particle diameter is preferably controlled at 0.5-3mm, such as its particle diameter is 0.5, 1, 1.5, 2, 2.5, 3, etc. , Of course, it can also be slightly larger or smaller than the above range. The moisture content of the above-mentioned granules is ≤0.5% (% on a dry basis), and it is ≤0.5%, that is, any value or interval value can be controlled within the range of 0-0.5%, and of course it is ≤0.1%, ≤0.05% better. The above-mentioned moisture content may also be affected by the processing environment (air humidity in the workshop) and the conditions in the packaging process.

[0025] The manufacture method of industrial sodium nitrate product of the present invention:

[0026] (1) take the industrial sodium nitrate product in the prior art a...

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Abstract

The present invention discloses an industrial sodium nitrate product and its production method. The physical and chemical properties of said product are: it is spherical or egg-shaped granule, grain size is 0.5-3 mm, and its water content is less than or equal to 0.5%. Its production method is as follows: using industrial sodium nitrate in the existent technology as raw material, heating and melting the above-mentioned raw material to obtain liquid phase material, and spray-granulating said liquid phase so as to obtain the invented product. Said invented product features low water content, nocaking and good fluidity.

Description

(1) Technical field [0001] The invention relates to an industrial sodium nitrate product and a manufacturing method. (2) Background technology [0002] Industrial sodium nitrate products in the domestic prior art are all powdery white or light gray or light yellow powdery crystals, and the national standard (GB / T4553) stipulates that its moisture content < 1.5% (% on a dry basis) is excellent Taste. Even if the finished product that can be achieved by dehydrating the above-mentioned products through drying and other processes is still about 1%, the moisture content is still about 1%. Due to its high moisture content, there is a problem of easy caking. When in use, it needs to be crushed or dissolved for a long time before it can be used, which brings great inconvenience to users. my country's industrial sodium nitrate production history has been more than 50 years, and the finished product has always maintained the aforementioned properties, and the caking problem has ...

Claims

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Application Information

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IPC IPC(8): B01J2/02C01D9/18
Inventor 康仕芳李建荣陈松刘太年赵珺宋光朴辛振林沈国宏
Owner TIANJIN UNIV
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