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Preparation method of high-purity strontium carbonate

A high-purity strontium carbonate and strontium carbonate technology, applied in the direction of calcium carbonate/strontium/barium, etc., can solve difficult problems such as handling

Inactive Publication Date: 2013-10-16
NANJING JINYAN STRONTIUM IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] All in all, the production wastewater treatment in several common high-purity strontium carbonate preparation methods is a difficult problem to deal with, and a more reasonable method is needed to treat the generated wastewater

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  • Preparation method of high-purity strontium carbonate

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Embodiment Construction

[0021] In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the above and other objects, features and advantages of the present invention will be more clear. The same reference numerals refer to the same parts throughout the drawings. The drawings are not intentionally drawn to scale, emphasis instead being placed upon illustrating the subject matter of the invention.

[0022] The method adopts brine as raw material, carbon dioxide as synthetic agent, a small amount of waste residue produced in the refining process can be used as raw material for coating production, all waste water is returned to the industrial strontium carbonate production system, no waste water is discharged, and no waste water treatment system needs to be constructed.

[0023] In the present invention, t...

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Abstract

The invention provides a method for preparing high-purity strontium carbonate. According to the invention, bittern is adopted as a raw material, and refined strontium hydroxide is prepared; and carbon dioxide is adopted as a synthesis agent, such that high-purity strontium carbonate is prepared. All wastewater produced during a processing process is returned to industrial strontium carbonate production, and no wastewater is discharged outside.

Description

technical field [0001] The invention relates to the technical field of clean production technology, in particular to a clean production technology of high-purity strontium carbonate. Background technique [0002] High-purity strontium carbonate has a very wide range of applications in the electronics industry. As an important inorganic fine chemical, it is a very important raw material for the electronics industry. High-purity strontium carbonate requires relatively high chemical purity in application. Generally speaking, strontium carbonate is also required to be small, with a narrow particle size distribution and a relatively uniform particle size. Therefore, relatively high requirements are put forward for the preparation of high-purity strontium carbonate. [0003] At present, the preparation technologies of high-purity strontium carbonate mainly include strontium chloride method, strontium nitrate method, and strontium hydroxide method. The strontium chloride method u...

Claims

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Application Information

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IPC IPC(8): C01F11/18
Inventor 邱为农
Owner NANJING JINYAN STRONTIUM IND
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