Method and device for preparing active calcium hydride

A calcium hydride and active technology, applied in the direction of alkali metal/alkaline earth metal/beryllium/magnesium hydride, etc., can solve the problems of difficult to grasp the composition of the final reaction product, difficult to control the reaction conditions, low production efficiency, etc., to achieve mild operating conditions, The effect of less resource consumption and simple preparation process

Active Publication Date: 2012-12-19
ZHEJIANG HUAKANG PHARMA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above and other conventional physical and chemical preparation methods all have defects such as difficult to grasp the final reaction product composition, difficult to control the reaction conditions, high preparation cost and low preparation efficiency, especially so far no simultaneous chemical adsorption with calcium hydride Hydrogen and oxygen storage reports

Method used

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  • Method and device for preparing active calcium hydride
  • Method and device for preparing active calcium hydride
  • Method and device for preparing active calcium hydride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 One of the preparation experiments of active calcium hydride.

[0031] against figure 1 The main points of operation of the experimental preparation device shown in are as follows:

[0032] Distribute an appropriate amount of raw material calcium hydride powder (commercially available) in the middle section of the quartz reaction tube 5 and complete the system assembly;

[0033] In atmospheric air environment, switch on figure 2 Shown electrolyzer 7 (be used for preparation at first, be used for test afterwards), pass into the dry hydrogen flow that electrolyzes water and produce with it to stabilize;

[0034] 1. Start the horizontal tubular electric furnace 2 within a limited time to heat up quickly, the microcomputer adjusts and controls the temperature value of the hot spot, the timer controls the reaction time, and slowly cools down;

[0035] 2. Discharge after cooling, keep warm and dry, and measure.

[0036] Its reaction conditions are controlled as...

Embodiment 2

[0040] Embodiment 2. The second of the preparation experiment of active calcium hydride.

[0041] The experimental device and operating points are the same as in Example 1. The temperature of the hot spot is controlled at 300° C., the total reaction time is 10 hours, and the hydrogen flow rate is controlled to be 0.1 liter / hour per gram of calcium hydride converted.

[0042] Experimental results: The actual yield of active calcium hydride was 92%.

Embodiment 3

[0043] Example 3. Determination of negative hydrogen ion concentration in active calcium hydride hydrolyzate.

[0044] Determination method: DC electrolysis method.

[0045] against figure 2 The experimental test device shown in , its equipment consists of:

[0046] 1. DC stabilized voltage and current power supply (commercially available).

[0047] 2. Electrolyzer 7: Self-made, composed of electrode 8 components, tank body and other related accessories. The tank body is a rectangular box-like container.

[0048] 3. The electrode 8 assembly is composed of 4 graphite electrode plates combined in a bipolar manner to form a three-chamber electrolytic cell in series.

[0049] The key points of its operation are:

[0050] 1. Adopt constant voltage control, set the total voltage to 6.0 volts, and the actual working voltage of each electrolytic chamber is about 2 volts.

[0051] 2. Get 120 grams of the active calcium hydride pattern that embodiment 1 makes, 1.5 liters of clean...

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Abstract

The invention relates to a preparation technology of active calcium hydride, and provides a method and a device for preparing the active calcium hydride. The method comprises the steps of: uniformly scattering calcium hydride powder as a raw material at a middle section of a quartz reaction tube of a horizontal tube-type electric heating furnace, wherein two ends of the quartz reaction tube are not sealed and are in a dried air environment at normal pressure; lastingly introducing dried hydrogen by micro-flow, and controlling the furnace temperature at 300-700 DEG C, wherein the reaction time is 8-12 hours; under the reaction condition, preparing solid active calcium hydride powder by a way that calcium hydride absorbs hydrogen and oxygen at the same time, wherein the molecular formula of the solid active calcium hydride powder is CaH2.2H.2O. The method is concise in preparation technology, mild in operation condition and less in environmental pollution and resource consumption. The prepared solid active calcium hydride powder can release hydrogen and oxygen at the same time in the water so as to be used as a storage carrier of a clean energy source, and the released hydrogen anions have the health-care action on the human body.

Description

technical field [0001] The present invention relates to a specific chemical substance active calcium hydride (CaH 2 ·2H·2O) preparation method and device, especially suitable for the process of one-step synthesis of specific chemical substances by controlling chemical reaction conditions, which belongs to a method of gas-solid phase catalytic preparation. Background technique [0002] As energy carriers, hydrogen and oxygen have the characteristics of abundant sources, high energy density, environmental protection, and various storage and utilization forms. In the new energy system, hydrogen energy will become a terminal secondary energy that is equally important and complementary to electric energy, penetrates and serves all aspects of social and economic life, and occupies an important position in national energy security and environmental protection. At present, many countries and regions such as the United States, the European Union, Canada, Japan, China, South Korea, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B6/04
Inventor 杨健杨祖望廖承军杨敏程新平陈德水
Owner ZHEJIANG HUAKANG PHARMA
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