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A kind of sodium manganese water purification material and preparation method and application thereof

A technology of water purification and hydrothermal reaction, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as high production cost, complex synthesis process, limited depth and breadth of property understanding, and achieve Easy to break, good catalytic oxidation activity, good adsorption performance

Active Publication Date: 2017-10-13
江苏金环科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited depth and breadth of understanding of the properties of manganese-potassium ore-type compounds, a mature large-scale manganese-potassium ore production and application process has not yet been formed, resulting in the use of manganese-potassium ore-type compounds in actual production and life. The application still needs to be further deepened and improved
[0005] At present, the synthetic manganese potassium ore at home and abroad is mainly potassium permanganate (KMnO 4 ) as the main raw material, the synthesis process is more complicated, and the production cost is higher

Method used

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  • A kind of sodium manganese water purification material and preparation method and application thereof
  • A kind of sodium manganese water purification material and preparation method and application thereof
  • A kind of sodium manganese water purification material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] In a 500ml reaction kettle, add 12g potassium permanganate, 8g manganese ore crude product, 150ml deionized water, and then add 6g H 2 o 2 , then stir evenly, add 20ml of phosphoric acid-sodium dihydrogen phosphate buffer solution (concentration is 1mol / L), and adjust the pH value to 1 with 15mol / L concentrated nitric acid, and seal the reaction vessel. Heating and reacting at 120°C for 12 hours, then cooling to room temperature with water, adding a small amount of deionized water, standing and aging for 3 hours, filtering and washing until the pH of the filtrate is 6.5-7.0, drying and calcining at 450°C for 1.5 hours, and obtaining the product after crushing Invention of water purification materials. The obtained sample grows in a rod-like structure, and the crystallites are agglomerated; after testing, its X-PRD is as follows: figure 1 As shown, its infrared spectrum is shown as figure 2 As shown, its high-resolution scanning electron microscope image is shown as ...

Embodiment 2

[0042] In a 500ml reaction kettle, add 4g of potassium permanganate and 4g of manganese ore crude product, 150ml of deionized water, and then add 4g of H 2 o 2 , then stir and dissolve, add 16ml of phosphoric acid-sodium dihydrogen phosphate buffer solution (concentration is 1.5mol / L), and adjust the pH to about 2.0 with 15mol / L concentrated nitric acid, and seal the reaction kettle. Heating and reacting at 150°C for 20 hours, then cooling to room temperature with water, adding a small amount of deionized water, standing and aging for 12 hours, filtering and washing until the pH value of the filtrate reaches 6.5-7.0, drying and calcining at 430°C for 1 hour, and crushing to obtain The water purification material of the present invention. After testing, its X-PRD and figure 1 Basically the same, its infrared spectrum and figure 2 Basically the same, its high-resolution scanning electron microscope image and image 3 Basically the same.

Embodiment 3

[0044] In a 500ml reaction kettle, add 8g of potassium permanganate and 4g of manganese ore crude product, 150ml of deionized water, and then add 2g of H 2 o 2 , stir evenly, add 10ml of phosphoric acid-sodium dihydrogen phosphate buffer solution with a concentration of 1mol / L, and adjust the pH to about 1.0 with 15mol / L concentrated nitric acid, and seal the reaction kettle. Heating and reacting at 100°C for 10 hours, then cooling to room temperature with water, adding a small amount of deionized water, standing and aging for 5 hours, filtering and washing until the pH value of the filtrate reaches 6.5-7.0, drying and calcining at 400°C for 2 hours, and crushing to obtain The water purification material of the present invention. After testing, its X-PRD and figure 1 Basically the same, its infrared spectrum and figure 2 Basically the same, its high-resolution scanning electron microscope image and image 3 Basically the same.

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Abstract

The invention discloses a sodium-manganese water purifying material as well as a preparation method and application thereof. The preparation method is characterized by using raw products of manganese mines as raw materials, mixing the raw products with a strong oxidant uniformly under the strongly acidic condition, then carrying out hydrothermal reaction and carrying out cooling, filtering, washing, drying and roasting, thus obtaining the granular water purifying material. The water purifying material obtained by the method has stable properties, good brittleness, nanoscale single crystals, large surface area and better adsorption and catalytic oxidation activities, is simple and convenient in process and lower in raw material cost, can not pollute the environment in the production process and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of wastewater purification, and in particular relates to the preparation and application of a water purification material for removing organic matter and heavy metals in water. Background technique [0002] my country's water resources are facing serious pollution problems. According to data, half of the seven major water systems in my country are polluted by organic matter or heavy metals, and 86% of urban rivers are polluted beyond the standard. Of the 35 large freshwater lakes in the country, 17 are seriously polluted. The root cause of the serious pollution of water resources is that a large amount of production and domestic wastewater has not been treated or has been treated but has not reached the standard. Because organic wastewater has the characteristics of complex composition, strong toxicity, deep color, high concentration of organic matter and inorganic salts, and difficulty in biochemical degra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00C02F1/72C02F1/32C02F1/62C02F101/34
Inventor 尚鸣顾万建邵玲霞尚利平丁俊鹏罗燕
Owner 江苏金环科技有限公司
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