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Method for treating waste water containing fluorine component

一种处理废水、废水的技术，应用在水/污水处理、自然水体处理、水处理参数控制等方向，能够解决成本高、不能减少氟排出量等问题，达到防止污染的效果

Active Publication Date: 2015-07-08
ディーエルケミカル カンパニーリミテッド
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Problems solved by technology

However, this dilution method not only requires additional dilution procedures and equipment, but also the cost of wastewater treatment is too high, and it cannot reduce the discharge of fluorine in unit operations.

Method used

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  • Method for treating waste water containing fluorine component

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specific Embodiment

[0021] The present invention will be described in more detail through the following preparation methods and examples. The preparation methods and examples described below are for better understanding of the present invention, and the present invention is not limited thereto.

[0022] 【Preparation method】Preparation of highly reactive polyisobutylene

[0023] The composite catalyst of isopropanol and boron trifluoride (by weight, isopropanol: boron trifluoride=1.45: 1) and the composition (C 4 - The reaction raw materials of residue-1) were continuously introduced into a stainless steel pressure reactor equipped with a cooling device, and the temperature was maintained at -23.0°C for the introduction of BF 3 . Relative to 100 parts by weight of isobutane, the BF 3 0.20 parts by weight. Keep the reactor pressure at 3kg / cm 2 Above, thereby make reaction raw material keep in liquid phase state, the residence time of reaction raw material is 30 minutes. After 180 minutes, the...

Embodiment 1～4， comparative Embodiment 1

[0026] [Examples 1 to 4, Comparative Examples 1 to 3] Treatment of Fluorine-Containing Component Wastewater

[0027] The temperature conditions and compounds shown in Table 2 below were used to treat the waste water with a fluorine content of 8530 ppm produced during the preparation of highly reactive polyisobutene to remove the fluorine contained in the waste water. The amount of the compound used in each step of wastewater treatment was about 1.2 equivalents relative to the fluorine concentration. The final fluorine component content in the wastewater treated with various reaction conditions and compounds was measured, and the results are shown in Table 2 below. In Table 2, "basic step" represents a fluoride removal step, "first step" represents a boron trifluoride salt removal step, and "second step" represents a residual fluorine component removal step.

[0028] Table 2

[0029]

[0030] As shown in Table 2, when only the general method of removing fluorine (calcium s...

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Abstract

Disclosed is a method for removing a fluorine component from waste water which is generated in a process for preparing a highly reactive polybutene and contains a high concentration of a fluorine component. The method for treating waste water containing a fluorine component comprises the step of decomposing a neutralized salt of boron trifluoride by adding a treating agent selected from the group consisting of an aluminum compound, a calcium compound and a mixture thereof to waste water containing the neutralized salt of boron trifluoride and reacting the same at 50-300 ℃, and removing a fluorine component by forming an aluminum or calcium salt of the fluorine component.

Description

technical field [0001] The invention relates to a method for treating wastewater containing fluorine components, in particular to a method for removing fluorine components in wastewater containing high-concentration fluorine components produced during the preparation of highly reactive polyisobutene. Background technique [0002] Polyisobutylene is usually made of C 4 polymerized olefins, C 4 Olefins are derived from the cracking of naphtha with a Friedel-Craft catalyst. The average molecular weight of the polyisobutene produced by this method is 300-5000. C 4 Among the olefin components in the extract 1, isobutene has the highest reactivity, so that the prepared polyisobutene is mainly composed of isobutene units. In the past, polyisobutylene was used as adhesives, glues or insulating oils, so less reactive products were preferred. Recently, however, polyisobutene into which a polar group is introduced is used as a lubricant, a viscosity index improver, or the like, or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58C02F101/14
CPCC02F2103/38C02F1/5236C02F2209/02C02F2101/14C02F1/02C02F1/5245C02F2101/108C02F1/58
Inventor 金明奭朴敏燮丁尙旭赵命基吴性武
Owner ディーエルケミカル カンパニーリミテッド
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