Industrial preparation method of cationic resin-based zirconium-loaded nanocomposite adsorbent
A cationic resin and nano-composite technology, applied in the direction of chemical instruments and methods, other chemical processes, etc., to achieve the effect of saving procedures and costs, saving procedures, and firm load
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Embodiment 1
[0031] An industrial preparation method of a zirconium-loaded nanocomposite resin adsorbent, comprising the following specific steps:
[0032] (1) Cleaning and drying of raw materials
[0033] Firstly, put the commercially available macroporous cation exchange resin D001 type resin raw material into the filter car, put 2t of resin in each batch, add about 2t of methanol solution, stir intermittently at 20-45°C, let stand for 1h, and then filter by gravity Methanol solution is removed, and the filtered methanol solution is returned to the distillation system for distillation and reused;
[0034] Then transfer the resin to a vacuum desiccator and heat it to 30-60°C with a water bath while maintaining a vacuum of 0.05-0.2 MPa. When the moisture content drops to 15-30%, unload to obtain a cleaned D001 resin.
[0035] (2) Zirconium salt impregnation and drying
[0036] Add 1-2t zirconium oxychloride (commercially available) and 20% hydrochloric acid in a 6000L reactor to prepare ...
Embodiment 2
[0046] Test methods for physical and chemical indicators and application performance of zirconium-loaded nanocomposite resin adsorbent products
[0047] 1. Appearance
[0048] Carry out with the method of visual inspection, the appearance of product of the present invention is moist shape light yellow spherical particle, without the visible mechanical impurity of normal eyesight.
[0049] 2. Physical and chemical indicators
[0050] 2.1 Sample pretreatment: Wash the sample repeatedly with deionized water until the effluent is clear and transparent, and the pH is neutral.
[0051] 2.2 Nanoparticles are processed according to the method specified in JY / T 011-1996:
[0052] Nanoparticles (calculated as ≤100nm), ≥20%.
[0053] 2.3 The mass fraction of zirconium content is pretreated according to the microwave digestion method specified in HJ / T166-2004, and then the sample is measured according to the method specified in GB / T 15072.18-2008:
[0054] The mass fraction of zirconi...
Embodiment 3
[0069] An industrial preparation method of a cationic resin-based zirconium nanocomposite adsorbent, comprising the following steps:
[0070] (A) Dissolving the zirconium salt in an acidic aqueous solution to obtain a zirconium salt with a mass fraction of 20-60% (in specific applications, it can be 20%, 60%, 30%, 50%, 40%, 55%, etc.) solution, the zirconium salt is selected from zirconium oxychloride or zirconium carbonate, and the acidic aqueous solution is selected from 20-30% (in specific applications, it can be 20%, 26%, 28%, 22%, 25%, 30% %, etc.) hydrochloric acid, 20-50% (in specific applications, it can be 20%, 50%, 30%, 22%, 25%, 40%, etc.) sulfuric acid or 20-30% (in specific applications, it can be 20%, 26%, 28%, 22%, 25%, 30%, etc.) nitric acid;
[0071] (B) adding the acidic cationic resin to the zirconium salt solution of step (A) in batches under stirring, the mass ratio of the acidic cationic resin to the zirconium salt solution is 1:1.5-1:3 (in specific appl...
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