Magnesium hydride preparation equipment and magnesium hydride preparation method

A magnesium hydride and equipment technology, applied in mechanical equipment, alkali metal/alkaline earth metal/beryllium/magnesium hydride, combustion engine, etc., can solve the problems of harsh reaction conditions, excessive particle size, poor particle uniformity, etc., to achieve Solve the effect of too large and too small particle size and simple preparation steps

Active Publication Date: 2019-06-28
SHANGHAI MG POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] On the other hand, the magnesium hydride powder prepared by the existing magnesium hydride preparation method has poor particle uniformity, or the particle size is too large (usually above 150 μm) or too small (usually below 1 μm), etc., and the particle size is too large. It cannot be directly used for hydrogen production, and if the particles are too small, the yield of magnesium hydride will be low and the reaction conditions will be harsh and dangerous

Method used

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  • Magnesium hydride preparation equipment and magnesium hydride preparation method
  • Magnesium hydride preparation equipment and magnesium hydride preparation method
  • Magnesium hydride preparation equipment and magnesium hydride preparation method

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Experimental program
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preparation example Construction

[0084] refer to figure 1 , the preparation method of magnesium hydride comprises the following steps.

[0085] Firstly, the heater 6 is moved to the transition chamber 1, and the magnesium raw material is put into the heater 6 through the feeding port 11. During the feeding process, close the first valve 12 between the transition chamber 1 and the heating chamber 2 to isolate the transition chamber 1 and the heating chamber 2, and reduce the pollution of the gas in the transition chamber 1 to the gas in the heating chamber 2. In order to further reduce the pollution of the gas in the transition chamber 1 to the heating chamber 2, in one embodiment of the present invention, the magnesium hydride preparation method also includes putting the magnesium raw material into the heater 6 and before transferring the heater 6 to the heating chamber 2 Use a vacuum pump to vacuumize the transition chamber 1 and fill the transition chamber 1 with inert gas through the air inlet of the tran...

Embodiment 1

[0091] Open the feeding port 11 of the transition bin 1, put the pure magnesium raw material into the heater 6 in the transition bin 1, close the feeding port 11 of the transition bin 1, and close the first valve 12 at the same time. Use the vacuum device 13 to create a vacuum environment in the transition chamber 1, and at the same time, fill the transition chamber 1 with argon gas at a pressure of 0.02 MPa through the gas filling port of the transition chamber.

[0092] Open the first valve 12, activate the guide rail 63 through the first control power source, make the heater 6 move along the guide rail 63 to the heating chamber 2, and then close the first valve 12. Fill the heating chamber 2 with argon gas with a pressure of 0.02 MPa through the gas inlet of the heating chamber 2, and supply power to the inductance coil 62 of the heater 6 through the second control power supply so that the temperature in the crucible 61 of the heater 6 rises to 800 ° C, The pure magnesium r...

Embodiment 2

[0098] Open the feeding port 11 of the transition bin 1, put the magnesium-aluminum alloy raw material into the heater 6 in the transition bin 1, close the feeding port 11 of the transition bin 1, and close the first valve 12 at the same time. Use the vacuum device 13 to create a vacuum environment in the transition chamber 1, and at the same time fill the transition chamber 1 with argon gas at a pressure of 0.03 MPa through the transition chamber inflation port.

[0099] Open the first valve 12, activate the guide rail 63 through the first control power source, make the heater 6 move along the guide rail 63 to the heating chamber 2, and then close the first valve 12. Fill the heating chamber 2 with argon gas with a pressure of 0.03 MPa through the gas filling port of the heating chamber 2, and supply power to the inductance coil 62 of the heater 6 through the second control power supply so that the temperature in the crucible 61 of the heater 6 rises to 750 ° C, The magnesium...

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Abstract

The present invention proposes a magnesium hydride preparation equipment and a magnesium hydride preparation method, wherein the magnesium hydride preparation equipment includes: a transition chamber, the transition chamber includes a feeding port; a heating chamber, the heating chamber is connected to the transition chamber through a first valve; a heater, The upper end of the heater is open and can move between the transition chamber and the heating chamber through the first valve. The heater is used to heat the magnesium raw material placed therein in the heating chamber; the collection chamber is connected to the heating chamber through a conduit to collect magnesium powder; and a reaction chamber, the reaction chamber communicates with the collection chamber through a second valve to receive magnesium powder, and the reaction chamber communicates with an external hydrogen source to receive hydrogen. The magnesium hydride preparation equipment proposed by the present invention combines magnesium powder preparation and hydrogenation reaction into one equipment, and the magnesium hydride preparation method using the magnesium hydride preparation equipment has simple steps, and the prepared magnesium hydride can be prepared by controlling conditions such as temperature and pressure. The particle size of the magnesium hydride particles is controlled within the range of 1 μm-60 μm.

Description

technical field [0001] The present invention relates to the preparation of magnesium hydride, more specifically, to a kind of magnesium hydride preparation equipment and magnesium hydride preparation method. Background technique [0002] Magnesium hydride (MgH 2 ), off-white powder, which is a single light metal hydride with high stability at normal temperature and pressure, with a density of 1.45g / cm3 and a hydrogen storage capacity of 7.6%, much higher than magnesium-based hydrogen storage alloy hydrides and other metal hydrides. Magnesium hydride can react with water at room temperature to produce hydrogen. At the same time, it can also be used as catalyst, reducing agent, etc. [0003] Magnesium-based materials belong to medium-temperature hydrogen storage alloys, which are easy to store, have mild reaction conditions, and the by-products are environmentally friendly. They are promising hydrogen storage materials. Compared with other metal hydrogen storage materials, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B6/04
CPCC01B6/04Y02T10/12
Inventor 邹建新丁文江
Owner SHANGHAI MG POWER TECH CO LTD
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