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Treatment and reclamation process of production waste water of tert-amyl peroxypivalate

A technology for producing pivaloate peroxypivalate and producing wastewater, which is applied in the fields of sulfur trioxide/sulfuric acid, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc. The problem of high concentration of oxide wastewater can achieve the effect of good quality, high purity and resource utilization.

Inactive Publication Date: 2012-09-05
NORTHWEST NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0006] The disadvantages of this treatment process are: the concentration of organic peroxide wastewater is high, the organic matter obtained by acidification and separation must be diluted with diesel oil and then incinerated, resources are not recovered, and the waste is serious
In addition, this treatment process is only suitable for the treatment of highly concentrated alkaline wastewater
Organic acid salts with high solubility in alkaline wastewater are converted into organic acids with relatively low solubility after acidification and separated, but have little effect on alcohols with high solubility, and the acidified wastewater still contains a large amount of organic matter

Method used

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Embodiment Construction

[0029] In the following, specific examples are used to describe in detail the process of treating and recycling the wastewater from the production of pivalate peroxypivalate (initiator PV) of the present invention.

[0030] (1) Production intermediates-t-butyl peroxide waste acid treatment

[0031] Collect 14 liters of primary waste acid produced by tert-butyl peroxybenzoate from the sewage outlet of the production unit. Among them, sulfuric acid>40%, COD cr =109024.16mg / L. Add 14 grams of sodium sulfite to the waste acid (1 gram of sodium sulfite per liter of wastewater), slowly heat to about 30°C, stir for 1.5 to 2.0 hours, and then distill under normal pressure. The distillate is condensed, cooled to room temperature, and then separated into layers. The upper organic phase mainly contains tert-butanol and tert-butyl peroxide. The mixture of tert-butanol and tert-butyl peroxide is obtained after distillation and dehydration by heterogeneous phase separation technology. The total...

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Abstract

The invention discloses a treatment and reclamation process of production waste water of tert-amyl peroxypivalate (inhibitor PV), belonging to the technical field of industrial waste water treatment. The process comprises: collecting high-concentration waste water from the drain outlet of a production device, and carrying out stabilization treatment on the high-concentration waste water so as to basically eliminate the risk of severe decomposition of organic peroxides in the waste water; and then separating and recovering tertiary butanol, pero-tertiary butyl, pivalic acid and sodium chloridewhich meet the industrial quality requirement from the waste water, thereby achieving the recovery and reclamation utilization of pollutants in organic peroxide production waste water. By utilizing the process, organisms are removed, and the waste water of acid and salt is subjected to hydrolysis-contact oxidization treatment and then is subjected to C-Fe micro-electrolysis decoloring treatment, thus the main indexes of discharged water reach the requirement of Chemical Synthesis Pharmacy Industrial Waste Water Pollutant Emission Standard (GB21904-2008) on water pollutant emission limit valueof new built enterprises.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and relates to a process for treating and recycling organic peroxide production wastewater, in particular to a process for treating and recycling pivalate pivalate (initiator PV) production wastewater. Background technique [0002] Pivalyl peroxy pivalate (initiator PV) is a high-efficiency initiator for high-pressure tubular or tank polymerization of ethylene, used for suspension polymerization initiators of acrylates and methacrylates; also vinyl acetate (EVA) important triggers. [0003] The production process of pivalate peroxypivalate is carried out intermittently, and the quality and quantity of wastewater, organic matter concentration, pH, salt content, BOD / CDO value, etc. vary with the production scale and time, and the peak and valley values ​​vary greatly. Pivalyl peroxypivalate is thermally unstable and easily decomposes at an accelerated rate, and it also deco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C01D3/04C01B17/90C07C53/128C07C51/02
Inventor 胡昌秋胡冰牛克彦丛子晶胡生隆王建民张莉孙振洲刘建业
Owner NORTHWEST NORMAL UNIVERSITY
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