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A metal ion adsorbent prepared from waste oil

A technology of metal ions and waste oil, applied in liquid solution solvent extraction, other chemical processes, chemical instruments and methods, etc., can solve the problems of high technical requirements for supporting equipment, complicated preparation process, difficult control, etc., and achieve the saving of skeleton materials , Improve mass transfer effect, increase the effect of contact area

Active Publication Date: 2016-03-16
北京优指时代科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN101415848 uses ion exchange resin to recover nickel and cobalt. This process can better recover metal ions in the ore leachate, but the preparation process of the resin itself is complicated, the cost is high, and the technical requirements of the supporting equipment are high, and it is not easy to control

Method used

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Examples

Experimental program
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Effect test

example 1

[0010] Preparation of adsorbent: Sodium hydroxide, n-butanol, and sodium thiosulfate are formulated into a compound modifier at a ratio of 1:5:1, and added in a ratio of 1:100 to waste oil. In waste oil, in a 70°C water bath, heat and stir for 0.5 hours, and then ultrasonically treat for 0.5 hours.

[0011] Adsorption process: will contain 200ppmAl 3+ The pH value of the solution was adjusted to 2.5, the temperature was kept at 25° C., stirred for 0.2 hours, and then allowed to stand to separate into layers. The water phase is the barren solution after treatment, Al 3+ The concentration is less than 2ppm, and the oil phase is rich in Al 3+ ion.

[0012] Desorption process: separate the oil layer, place it in 15% sulfuric acid solution, keep the temperature at 25°C, and the oil-water ratio is 5:1, stir for 0.5 hours, and then let stand to separate layers. The water phase is a relatively concentrated metal ion solution after desorption, which is further recovered by electrow...

example 2

[0014] Preparation of adsorbent: Ammonia water, ethanol and sodium sulfite are formulated into a compound modifier according to the ratio of 1:2:1, and added to the waste oil at a ratio of 1:150 to the waste oil, and heated at 70°C In a water bath, heat and stir for 0.5 hours, and then sonicate for 0.5 hours.

[0015] Adsorption process: will contain 400ppm Cu 2+ The pH value of the solution was adjusted to 5, the temperature was kept at 25° C., stirred for 0.2 hours, and then allowed to stand to separate into layers. The water phase is the poor solution after treatment, Cu 2+ The concentration is less than 2ppm, and the oil phase is rich in Cu 2+ ion.

[0016] Desorption process: separate the oil layer, place it in 15% hydrochloric acid solution, keep the temperature at 25°C, and the oil-water ratio is 3:1, stir for 0.5 hours, and then let stand to separate layers. The water phase is a relatively concentrated metal ion solution after desorption, which is further recovered...

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Abstract

The invention is a metal ion adsorbent processed from waste oil, which can extract and adsorb various metal ions in the solution, and regenerate the adsorbent through the desorption liquid to realize the recycling of the adsorbent. The adsorbent provided by the invention has no volatile toxicity, good fluidity and high adsorption efficiency. If the adsorbent is used in the fields of waste water treatment, hydrometallurgy or electronic waste recycling, the cost is low, the secondary pollution is small, and the purpose of making waste from waste can be achieved. The adsorbent of the present invention is characterized in that, according to the metal ion type of the solution to be adsorbed, one or several modifiers prepared by medicaments are added to the waste oil, and under the pressure of 50~200kPa and the temperature of 40~150℃, the Stirring for 0.1 to 5 hours, and ultrasonic treatment for 0.1 to 5 hours to prepare the waste oil metal ion adsorbent.

Description

technical field [0001] The invention is a metal ion adsorbent processed by using waste oil as a raw material, which can extract and adsorb various metal ions in the solution, and can be used in the fields of waste water treatment, hydrometallurgy or electronic waste recovery. Background technique [0002] In the process of enriching metal ions in the solution, common extractants mainly include ion exchange resins, organic extractants, biological materials, zeolites, activated carbon and activated sludge. The used adsorbent material of the patent CN1792834 is feather, but the material has no fluidity, and the contact surface with the solution is small, the adsorption efficiency is low, and it cannot be regenerated. The nylon film of patent CN101249990 also becomes solid state, and preparation process and regeneration process are all more complicated. Patent CN1396280 extracts copper with hydroxyketoxime as the main component. This material has strong volatility, high toxicit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01D11/04
Inventor 孙刚
Owner 北京优指时代科技有限公司
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