Preparation for anhydrous magnesium chloride

A technology of anhydrous magnesium chloride and magnesium chloride, which is applied in the direction of magnesium chloride and magnesium halide, can solve problems such as failure to meet user requirements, particle size, and particle shape restrictions, and achieve low cost, convenient operation, and uniform particle size.

Inactive Publication Date: 2008-10-08
ZUNYI TITANIUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The production methods and equipment of the prior art are targeted, limited in particle size, particle shape, etc., and often cannot meet user requirements

Method used

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  • Preparation for anhydrous magnesium chloride
  • Preparation for anhydrous magnesium chloride
  • Preparation for anhydrous magnesium chloride

Examples

Experimental program
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Embodiment

[0036] The top view of the equipment connection is shown in Figure 1: the equipment of the present invention includes a melting furnace 9, a crucible 10, a melt delivery pipeline 8, a nozzle 13, an air compressor 2, and a collection bin 7, and the crucible 10 is placed in the melting furnace 9, and the crucible 10 It is a sealed crucible 10 with a cover. The crucible 10 is connected to the argon gas cylinder 1 with an inert gas delivery pipe 11. The crucible 10 is connected with a melt delivery pipeline 8. The other end of the melt delivery pipeline 8 is connected to a nozzle 13, and the melt delivery pipeline 8 is A pipeline high-frequency heater (not shown) is attached on the top, and the nozzle 13 is a linear nozzle. The nozzle 13 is attached with a nozzle high-frequency heater (not shown). The nozzle 13 enters the collection bin 7 head, and the nozzle 13 side There is a compressed air pipe 4, the nozzle 13 and the compressed air inlet pipe 4 form a V-shaped jet at an angle ...

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Abstract

The invention provides a method for the production and a device of anhydrous magnesium chloride powder, the magnesium chloride is melted at a temperature above the melting point of the magnesium chloride, the fused mass of the magnesium chloride is sprayed out by an inert gas and the fusing liquid of the magnesium chloride is atomized by the dry compressed air, and the anhydrous magnesium chloride powder is obtained through condensation. The device comprises a melting furnace, a crucible, a feeding fused mass pipeline, a nozzle, a compressor and a collecting bin; and the method includes following steps of: (1) putting the magnesium chloride into the furnace, (2) melting the magnesium chloride, (3) high-frequency heating to the magnesium chloride feeding pipeline and the nozzle, (4) atomization, and (5) collection and packaging. The atomization of the invention adopts the dried high pressure compressed air to impact the liquid jets of the molten magnesium chloride strongly so as to reach the atomization effect, and the process and operation are simple and convenient, thereby obtaining relative pure anhydrous magnesium chloride powder; the atomized products are spherical and the particle-size distribution is even; and the particle sizes of the products can be adjusted flexibly according to the demands of customers.

Description

technical field [0001] The invention relates to magnesium chloride, in particular to the preparation of anhydrous magnesium chloride powder by an atomization method. Background technique [0002] Anhydrous magnesium chloride powder is mainly used as raw material for electrolytic magnesium industry, flux for refining magnesium, and as far-infrared composite electric heater, composite decorative board, insulation and heat preservation material, etc. Anhydrous magnesium chloride particles can be used as olefin catalyst carrier. [0003] In industry, two-step dehydration is used when producing magnesium from seawater or salt lake brine: one is to use a hot air flow at about 200°C to dehydrate MgCl 2 ·6H 2 O first off to Mgcl 2 ·1~2H 2 O; the second is to completely dehydrate the dehydrated low-water magnesium chloride under a hydrogen chloride atmosphere to obtain granular anhydrous magnesium chloride, which is used as a raw material for electrolytic magnesium industry. a pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F5/30
Inventor 翁启钢李卫吕屹峰袁继维王一鸣
Owner ZUNYI TITANIUM
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