Aluminum Hydrogen Peroxide produced by Zibo Xiangrun is a kind of aluminum oxide with a very large specific surface area, which is specially used for the production of hydrogen peroxide. It is widely used in the production of hydrogen peroxide.
Product Parameters：
DD6 alumina is a specifically tailored particle size distribution. Xiangrun also provides an option for customers requiring spherical alumina, 14*28mesh, 3/16" diameter size.
Cost-effective treatment At a bulk density of 40 pounds per cubic foot, DD-6 granular activated alumina is an economical alternative alumina.
The role of Alumina Hydrogen Peroxide：
1. Absorb lye. After the raffinate passes through the alkali tower (with potassium carbonate solution inside) to neutralize the acidity, it entrains a small amount of potassium carbonate droplets, and enters the clay bed after precipitation and separation. Because activated alumina has a strong
Adsorption, the remaining lye is adsorbed, and the alkalinity of the working fluid is reduced from 0.1 g/L to less than 0.005 g/L, and the conditions suitable for the hydrogenation reaction are reached.
2. Absorb moisture. 80% of the water entrained in the raffinate and the water produced by the decomposition of hydrogen peroxide are absorbed by the concentrated potassium carbonate solution, and a small amount of water is absorbed by the activated alumina together with the lye. After passing the white clay bed
The water in the working fluid drops below 3 ml/L, but with the extension of the service life, the water absorption of activated alumina reaches saturation, that is, the absorption and release maintain a balance, and its water absorption effect will be insignificant.
3. Decompose hydrogen peroxide. The concentration of the lye is appropriate, and the capacity of the alkali tower to decompose the raffinate hydrogen peroxide is 60% to 70%. The activated alumina has the ability to decompose hydrogen peroxide due to the adsorption of potassium carbonate solution.
20%～30%. For example, the hydrogen peroxide content of the raffinate is 0.2 g/L, after passing through the alkali tower, it drops to 0.06～0.08g/L, and after passing through the white clay bed, it drops to 0.042～0.056 g/L.
4. Regenerate degradation products. The hydrogenated clay bed can regenerate the epoxide of tetrahydro-2-ethylanthraquinone generated in the oxidation reaction, and the post-treatment of the clay bed can regenerate the 2-ethylanthracene generated in the hydrogenation reaction.
Ketone, 2-ethyl-10-hydroxyanthrone and other degradation products. In different production equipment, due to the different composition of the degradation products, the role of activated alumina is not the same. Therefore, the same attention should be paid to hydrogenation and
The use of post-treatment white clay bed. The production of degradation products can cause the loss of expensive anthraquinone, increase production costs, and reduce production capacity; at the same time, due to the increase in the total solid content in the working fluid, the work
The increase in liquid density and viscosity reduces the oxidation and extraction yield, and the system is difficult to operate; some water-soluble degradation products can cause the appearance of the product to become yellow and the organic carbon content increases, which not only reduces the quality of the product, but also increases it.
The difficulty and danger of product refining and concentration are increased.
5. Filter impurities. The activated alumina filler layer of the clay bed can filter the working fluid to a certain extent. However, after activated alumina is used for a long time, alumina accumulates in the bottom of the clay bed
There are a large number of irreversible degradants, catalyst powder, alumina sludge and other impurities, so before replacing activated alumina, the working fluid in the clay bed cannot be directly pressed into the system, and must be pumped into the preparation kettle to clean.
It can be recycled after being cleaned to prevent contamination of the entire system.
6. Purify hydrogen peroxide. After washing the surface alkalinity of activated alumina with pure water and treating it with 0.5% to 5% nitric acid solution, the alumina can be used to purify the residual liquid of hydrogen peroxide in the concentration process, and the effect is very ideal.
It is a way to save energy and reduce consumption and increase output.
Aluminum Hydrogen Peroxide：
Packing and delivery diagram：
Replacement of Alumina in Hydrogen Peroxide：
When the working fluid passes through the activated alumina, the effective anthraquinone content remains basically unchanged. In order to maintain the stability of the working fluid components, when the amount of supplementary anthraquinone added to the system increases significantly, it indicates the energy of its regeneration degradation products.
If the force drops, the activated alumina should be replaced. Generally, the white clay bed is connected in parallel with two beds. When the relevant indicators cannot meet the production requirements after a certain period of use, the white clay bed should be switched in time to replace the activated alumina.
1. Treatment of spent activated alumina. After the clay bed exits the working fluid, there is still a lot of working fluid adsorbed in the activated alumina micropores, which need to be purged with steam from top to bottom. Usually, 1 000 kg live.
The alumina can absorb about 400 kg of working fluid. After the ineffective activated alumina is blown dry, it is discharged out of the clay bed, and by observing the color change, crushing, and agglomeration, it can be judged whether there is any in the process of use.
2. The filling of activated alumina. After unloading the invalid activated alumina, there are a lot of alumina powder attached to the inner wall of the clay bed, the wire mesh, and the porcelain ball.
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