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Treatment method for wastewater containing nickelous ions

A treatment method and technology of divalent nickel, applied in water/sewage treatment, neutralized water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effect of low emission, simple operation and reduction of processes

Active Publication Date: 2017-01-04
乐凯化学材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This determines that there will be a lot of secondary pollution after chemical treatment; and generally requires specific equipment for treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put 900L of waste water containing divalent nickel ions into a 3-ton reactor, adjust the pH to 11 with sodium hydroxide solution; put 850L of toluene into it, and add 432kg of 2,2'-thiobis-p-tetraoctylphenol under stirring , heat up to 65°C, stir for 20 minutes, stop heating and let it stand for 10 minutes, remove 900L of colorless and dischargeable water treated in the lower layer, then add 900L of divalent nickel ion-containing wastewater, and add the same amount of hydrogen as the first time Sodium oxide solution, heated to 70°C, stirred for 20 minutes, stopped heating, allowed to stand for 20 minutes, and removed 900L of colorless and dischargeable water treated in the lower layer. Circulate in this way until the added water no longer fades to colorless, put it into the bucket for the next treatment, add molar equivalent of 1-n-butylamine to the organic phase and heat it to reflux for 2 hours, which is the light stabilizer UV- 1084, the elemental analysis determined...

Embodiment 2

[0033] Put 900L of waste water containing divalent nickel ions into a 3-ton reactor, adjust the pH to 10.5 with sodium hydroxide solution; put 850L of toluene into it, and add 432kg of 2,2'-thiobis-p-tetraoctylphenol under stirring , heat up to 65°C, stir for 20 minutes, stop heating and let it stand for 10 minutes, remove 900L of colorless and dischargeable water treated in the lower layer, then add 900L of divalent nickel ion-containing wastewater, and add the same amount of hydrogen as the first time Sodium oxide solution, heated to 70°C, stirred for 20 minutes, stopped heating, allowed to stand for 20 minutes, and removed 900L of colorless and dischargeable water treated in the lower layer. Circulate in this way until the added water no longer fades to colorless, put it into the bucket for the next treatment, add molar equivalent n-butylamine to the organic phase and heat it to reflux for 2 hours, which is the light stabilizer UV-1084, Elemental analysis determined the con...

Embodiment 3

[0035] Put 900L of waste water containing divalent nickel ions into a 3-ton reaction kettle, adjust the pH to 11 with sodium carbonate solution; put 850L of toluene into it, add 432kg of 2,2'-thiobis-p-tetraoctylphenol under stirring, Heat up to 65°C, stir for 20 minutes, stop heating and let stand for 10 minutes, remove 900L of colorless and dischargeable water treated in the lower layer, then add 900L of divalent nickel ion-containing wastewater, and add the same amount of sodium carbonate as the first time Sodium solution, heated to 70°C, stirred for 20 minutes, stopped heating, allowed to stand for 20 minutes, and removed 900L of colorless and dischargeable water treated in the lower layer. Circulate in this way until the added water no longer fades to colorless, put it into the bucket for the next treatment, add molar equivalent n-butylamine to the organic phase and heat it to reflux for 2 hours, which is the light stabilizer UV-1084, Elemental analysis determined the con...

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PUM

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Abstract

The invention discloses a treatment method for wastewater containing nickelous ions. The method includes the following steps that 1, the to-be-treated nickel containing wastewater is pumped into a reaction kettle, and PH is adjusted to 8-11 with inorganic base; 2, an organic solvent is pumped into the kettle, 2,2'-thiobis(4-tert-octylphenol) is added under stirring, the mixture is heated to 70-80 DEG C, stirring is carried out, and a lower-layer water phase is treated water which can be discharged; 3, the two previous steps are repeated till the green color of the water phase does not fade, 1-n-butylamine is added into an organic phase, and a light stabilizer UV-1084 product is obtained through synthesis. The residual quantity of the nickel ions in the treated wastewater meets the discharging standard, the absorbed nickel ions and an extracting agent can be further prepared into the efficient light stabilizer UV-1084, no secondary pollution is caused, and economic benefits are high; operation is easy, and no special equipment is needed.

Description

technical field [0001] The invention relates to a treatment method for wastewater containing divalent nickel ions, in particular to a method for recovering divalent nickel ions in wastewater produced by light stabilizer UV-1084. Background technique [0002] UV absorber UV-1084, the Chinese name is 2,2-thiobis(4-tert-octylphenol) n-butylamine nickel salt; (1-butylamine)[[2,2-(sulfur-KS)di[ 4-(1,1,3,3,-Tetramethylbutyl)phenolate-KO]](2-)]nickel. Light stabilizer UV-1084 is widely used in rubber and plastic products such as polyethylene film, flat wire, or polypropylene film, flat wire, etc. It has good compatibility with polyolefin; it can be used on polyethylene agricultural film and polypropylene shed film Stable application; resistant to pesticides and acid, has a broad market worldwide. However, wastewater containing divalent nickel ions will be produced during the production process, polluting the environment and wasting resources. [0003] The pre-light stabilizer UV...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/62C02F1/66C02F101/20
CPCC02F1/62C02F1/66C02F2101/20
Inventor 高俊峰李迁刘东峰李小净
Owner 乐凯化学材料有限公司
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