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Method for producing strontium chloride by means of strontium slag, and strontium chloride prepared by using method

A technology of strontium chloride and strontium slag, applied in the field of strontium chloride, can solve problems such as unstable product quality, difficult control of crystal particle size, and easy agglomeration of products, and achieve the effects of convenient feeding and discharging, simple algorithm, and high production efficiency

Active Publication Date: 2018-02-09
UPCHEM CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, it is difficult to control the particle size of the crystal during this process, which makes the quality of the product unstable and the product is easy to agglomerate

Method used

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  • Method for producing strontium chloride by means of strontium slag, and strontium chloride prepared by using method
  • Method for producing strontium chloride by means of strontium slag, and strontium chloride prepared by using method
  • Method for producing strontium chloride by means of strontium slag, and strontium chloride prepared by using method

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Embodiment Construction

[0035] In order to make the above objectives, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings to make the above and other objectives, features and advantages of the present invention clearer. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale deliberately, and the focus is on showing the gist of the present invention.

[0036] See figure 1 versus figure 2 The method for producing strontium chloride hexahydrate from strontium slag of the present invention includes the following steps.

[0037] The invention discloses: S100: Celestite and raw coal are reduced and roasted in a rotary kiln under high temperature conditions, and the crude barium and strontium materials obtained by roasting are added to a closed extraction tank filled with water, and heated, pressurized...

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Abstract

The invention belongs to the field of chemical production, and discloses a method for producing strontium chloride by means of strontium slag, and the strontium chloride prepared by using the method.The invention provides the method for producing the strontium chloride by means of the strontium slag, and the strontium chloride prepared by using the method. The method for producing the strontium chloride by means of the strontium slag comprises the following steps: weighing 100-200kg of celestite and 50-250kg of feed coal, putting the weighed raw materials into a rotary kiln, carrying out reduction roasting under the high temperature condition, and grinding the strontium slag into slurry by means of a ball mill; adding hydrochloric acid into the slurry until solid particles in the slurry are no longer dissolved; filtering to remove residues, and refining filtrate; crystallizing, and filtering and washing crystals with a centrifugal machine to obtain strontium chloride hexahydrate. After the method is adopted, the quality of the strontium chloride is improved, the production efficiency is increased, and the yield is increased.

Description

Technical field [0001] The invention belongs to the field of chemical production, and particularly relates to a method for producing strontium chloride using strontium slag and strontium chloride prepared by the method. Background technique [0002] Strontium chloride can be used as a flux for the electrolysis of sodium metal, as a raw material for the production of fireworks and other strontium salts, as well as for chemical reagents and organic synthesis catalysts. Strontium chloride is also an indispensable raw material for the production of plasma TV screens. The raw coal is mixed in a certain proportion and roasted in the furnace to produce crude strontium sulfide. The remaining strontium slag after leaching also contains about 30% acid-soluble strontium (using strontium carbonate SrCO 3 It is currently used as a raw material for making bricks and cement, causing a waste of rare strontium resources, and this part of acid-soluble strontium is not recovered. In the production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F11/24
CPCC01F11/24
Inventor 不公告发明人
Owner UPCHEM CHINA
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