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A kind of sugar analysis three-phase system and method for extracting and separating Fe (Ⅲ), Cr (Ⅲ) and Ni (ⅱ)

A three-phase system and extraction technology, applied in the direction of improving process efficiency, can solve the problems of improper disposal of waste residue, pollution of water and soil, waste of heavy metal resources, etc., achieving equipment-friendly, fast separation speed, and low corrosiveness. Effect

Active Publication Date: 2021-09-28
BINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wastewater and waste residue containing heavy metal ions such as iron, chromium, nickel, etc. are not properly treated, and are discharged and placed arbitrarily. On the one hand, they pollute water sources and soil, cause serious pollution to the ecological environment, and bring great hidden dangers to human health; A great waste of heavy metal resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] Microemulsion preparation: Saponified P507, n-pentanol, and n-heptane were mixed in a volume ratio of 4:15:35, and the mixture was ultrasonicated at room temperature for 30 minutes, and then left to stand for 12 hours to obtain a clear and transparent microemulsion system.

[0014] Construction of three-phase sugar analysis system and extraction and separation: Take 2 mL of aqueous solution of three metal ions (concentration: 100 mg / L) of Fe(Ⅲ), Cr(Ⅲ) and Ni(Ⅱ) in a 10 mL graduated centrifuge tube 2 mL of saponified P507 microemulsion and 3 mL of acetonitrile were added, and 0.40 g of glucose was added. Under the condition of 25 ℃, ultrasonic treatment was performed for 10 min, and the water bath was shaken at constant temperature for 10 min. Centrifuge with a centrifuge for 10 minutes at a speed of 4000 rpm. At this time, a stable three-phase system can be formed. After treatment, the volume of each phase in the three-phase system can be directly read from the scale on ...

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Abstract

The invention relates to the technical field of separation of iron, nickel and chromium, in particular to a three-phase system and method of sugar analysis for extracting and separating iron Fe(Ⅲ), nickel Ni(II) and chromium Cr(Ⅲ), which can be used for waste Separation of iron, nickel and chromium in slag and waste liquid. The present invention first selects saponified P507 as surfactant, n-pentanol as co-surfactant, and n-heptane as organic phase to construct a microemulsion; then, constructs a three-phase system of saponified P507 microemulsion, acetonitrile and sugar solution, and creatively proposes A sugar precipitation three-phase system and method for extracting and separating iron, nickel and chromium is proposed, and the method can better realize the separation of iron, nickel and chromium. The advantages of the present invention are that the preparation process of the three-phase system is simple, and the amount of P507 and organic phase is less, the operation is simpler, the equipment is friendly, the separation speed is fast, the separation efficiency is high, the stripping step is simple, and the organic phase and sugar after stripping All can be recycled and easily used in industry on a large scale.

Description

technical field [0001] The invention relates to the technical field of separation of iron, nickel and chromium, in particular to a sugar analysis three-phase system and method for extracting and separating iron, nickel and chromium. The method can be used for the separation of iron, nickel and chromium in waste slag and waste liquid. Background technique [0002] The sustainable use of mineral resources and water resources is an important issue facing society today. Wastewater and waste residue containing heavy metal ions such as iron, chromium, nickel, etc. are not properly treated, and are discharged and placed arbitrarily. On the one hand, they pollute water sources and soil, cause serious pollution to the ecological environment, and bring great hidden dangers to human health; On the one hand, it causes a great waste of heavy metal resources. Exploring simple, cheap and efficient methods of separating and recovering heavy metals such as iron, chromium and nickel from was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B23/00C22B3/40C22B34/32
CPCY02P10/20
Inventor 李大枝何慧禹
Owner BINZHOU UNIV
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