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Industrial waste acid and furnace slag treatment method

A technology for waste acid treatment and industrial waste acid, which is applied in the production of hydrogen, etc.

Inactive Publication Date: 2020-09-08
MACH TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even though there are many ways to generate hydrogen, there are many limitations such as raw material sources, equipment costs, technology development and even regions.

Method used

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  • Industrial waste acid and furnace slag treatment method
  • Industrial waste acid and furnace slag treatment method
  • Industrial waste acid and furnace slag treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1, basic experimental procedure (referring to figure 1 shown)

[0052] Prepare experimental equipment: reaction kettle, syringe (as an acid addition device), gas drying tower, gas flow meter, gas collection bottle, silicone hose and hydrogen purification materials, of which hydrogen purification materials can include: 3A molecular sieve, activated carbon, 5A One or a combination of molecular sieves, graphene, graphite flakes, metal hydrides and carbon nanotubes; the form of slag can be block or ground into powder, preferably powder.

[0053] Step A: Connect the reaction kettle, the gas drying tower, the gas flow meter and the gas collection bottle with a silicone hose; the connection method can be series, parallel, or series-parallel.

[0054] Step B: put a slag into the reaction kettle, and put the hydrogen purification material into each gas drying tower.

[0055] Step C: After absorbing an appropriate amount of industrial waste acid with a syringe, slowl...

Embodiment 2

[0058] Embodiment 2, reaction of magnesium smelting furnace bottom slag and industrial waste acid

[0059] The slag used in this embodiment is magnesium smelting bottom slag. Before the experiment, EDS component analysis was carried out for the composition of the magnesium smelting bottom slag, wherein the components include: magnesium 10-25% and chlorine 25-40%; As can be seen from Fig. 2, in a preferred embodiment, the bottom slag composition of this magnesium smelting furnace comprises: magnesium 14-21% and chlorine 26-40%; In addition, the used industrial waste acid can be 6M lead-acid battery electrolyte, 20 -40% potassium sulfate process waste acid (preferably 30%), 1-2.6M ferrous sulfate waste acid (preferably 2.6M), 1.5-2.3M ferrous chloride waste acid (preferably 2.3M) and 1.6-1.8M glacial acetic acid (preferably 1.7M), the following data only present the content of the preferred embodiment for the purpose of illustration.

[0060] Response result

[0061] When the ...

Embodiment 3

[0065] Embodiment 3, the reaction of magnesium die-casting furnace bottom slag and industrial waste acid

[0066] The slag used in this embodiment is magnesium die-casting bottom slag, which includes: magnesium 82-93% and aluminum 5-10%; Figure 7 It can be seen that in a preferred embodiment, the composition of the magnesium die-casting bottom slag includes: 86-91% magnesium and 6-10% aluminum; in addition, the used industrial waste acid can be 6M lead-acid battery electrolyte, 20-40 % potassium sulfate process waste acid (preferably 30%), 1-2.6M ferrous sulfate waste acid (preferably 2.6M), 1.5-2.3M ferrous chloride waste acid (preferably 2.3M) and 1.6 One of -1.8M glacial acetic acid (preferably 1.7M), the following data only present the content of the preferred embodiment for the purpose of illustration.

[0067] Response result

[0068] When the temperature of the reactant is about 55-110° C., the reaction is carried out with the basic experimental steps and conditions ...

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Abstract

The invention provides an industrial waste acid and furnace slag treatment method, and particularly relates to a method for respectively reacting magnesium smelting furnace bottom slag and magnesium die-casting furnace bottom slag with industrial waste acid. The method comprises the steps: connecting a plurality of hydrogen purification materials, a gas collection bottle and a reaction kettle; putting furnace slag into the reaction kettle, and slowly adding industrial waste acid into the reaction kettle to react together; and finally collecting hydrogen as a renewable resource.

Description

technical field [0001] The invention relates to the field of industrial waste acid and slag treatment, in particular to a method for generating hydrogen by using magnesium-containing slag to react with industrial waste acid. Background technique [0002] In recent years, the application level of magnesium alloys in the world has become more and more extensive, especially in the application of portable products and 3C products, which has made the magnesium alloy forming industry in Taiwan, China also flourish. In the magnesium alloy forming industry, due to the characteristics of the magnesium metal structure, the die-casting method is still the main process adopted by the domestic industry. However, any process of dissolution and processing must have the problem of waste. [0003] At present, magnesium-related waste treatment can be divided into grades 1-6 according to the classification method of the European MEL (Magnesium Elektron) company, of which grades 1, 5 and 6 can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08
CPCC01B3/08Y02E60/36
Inventor 张俊仁张宏嘉王伯彰林郁芬
Owner MACH TECH CO LTD