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A kind of regeneration method of activated clay waste residue

A technology of activated clay waste residue and sulfuric acid solution, which is applied in separation methods, filter regeneration, chemical instruments and methods, etc., and can solve the problems of land occupation, pollution of the surrounding environment, waste of material resources, etc.

Inactive Publication Date: 2011-12-07
QIDI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Activated clay is often discharged as solid waste after use, such as activated clay used for oil adsorption and filtration. The discarded activated clay waste after use not only pollutes the surrounding environment, occupies land, but also causes a waste of material resources.

Method used

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  • A kind of regeneration method of activated clay waste residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The activated clay produced by Guangzhou Qitong Chemical Co., Ltd. is used for the decolorization and filtration of oils, and the activated clay waste generated from oil treatment is clarified and dried, and then mixed with a sulfuric acid solution with a concentration of 50% by mass at a mass ratio of 1:1. The mud is made into a brick shape with a size of about 5cm×5cm×5cm.

[0026] Put the finished solid in a furnace and burn it at 650°C. After 14 minutes, the solid is smokeless and tasteless, and the whole body is red. Take it out, air it to room temperature, and then pulverize with a pulverizer.

Embodiment 2

[0028] The activated clay produced by Guangzhou Qitong Chemical Co., Ltd. is used for the decolorization and filtration of oils, and the activated clay waste generated from oil treatment is clarified and dried, and then mixed with a sulfuric acid solution with a concentration of 40% by mass at a mass ratio of 0.5:1. The mud is made into a spherical shape about 5 cm in diameter.

[0029] Put the finished solid into a furnace and burn it at 600°C. After 18 minutes, the solid is smokeless and tasteless, and the whole body is red. Take it out, air it to room temperature, and then pulverize with a pulverizer.

Embodiment 3

[0031] The activated clay produced by Guangzhou Qitong Chemical Co., Ltd. is used for the decolorization and filtration of oils. The activated clay waste generated from oil treatment is clarified and dried, and then mixed with a sulfuric acid solution with a concentration of 60% by mass at a mass ratio of 1.5:1. The mud is made into granules.

[0032] Put the finished solid in a furnace and burn it at 700°C. After 11 minutes, the solid is smokeless and tasteless, and the whole body is red. Take it out, air it to room temperature, and then pulverize with a pulverizer.

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Abstract

The invention discloses a method for regenerating active white clay waste slag. The method comprises the following steps of: a) mixing the active white clay waste slag and sulfuric acid solution; b) making a solid matter by using the mixed sludge; c) burning the solid matter at temperature of 600 to 700 DEG C; and d) smashing the burned solid matter. By the method for regenerating the active white clay waste slag, the used active white clay waste slag is subjected to acidization and high-temperature roasting; the process is simple, the treatment time is short, the process is convenient to operate, and continuous industrial production can be realized; the regenerated active white clay can be reused, so that the fund is saved and pollution to the neighboring environment caused by peculiar smells due to long-time occupation stacking can be avoided; a using effect of the regenerated active white clay is basically the same as the using effect at the first time; and the active white clay waste slag can be regenerated for many times and applied to drinking water treatment so as to remove nitride, fluoride and the like from water.

Description

Technical field [0001] The invention relates to the field of adsorbent treatment, in particular to a regeneration method of activated clay waste residue. Background technique [0002] White clay is a kind of clay containing magnesia. It is treated by inorganic acidification, rinsed with water and dried to make activated white clay, also called activated bleaching clay. Its specific surface area is several tens of m 2 / g increases to hundreds of m 2 / g, odorless, tasteless, non-toxic, insoluble in water, organic solvents and various oils, strong adsorption performance, extremely versatile, used in the animal and vegetable oil refining industry for decolorization and purification; in the petroleum industry, used for petroleum Decolorization and purification of resin, paraffin wax, paraffin oil, kerosene; also used for clarification of wine and fruit juice, purification of sugar juice; decolorization of plastic, resin, soap, etc.; removal of peculiar smell and removal of ions (such a...

Claims

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Application Information

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IPC IPC(8): B01J20/34B01J20/12
Inventor 周奇迪栾云堂
Owner QIDI ELECTRIC GROUP
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