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Treatment and recycling process for initiator CH335 wastewater

A CH335, initiator technology, applied in natural water treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of high concentration of organic peroxide wastewater, inappropriate treatment methods, and no recovery of resources and other problems, to achieve the effect of resource utilization, protection of resources and environment, and saving of processing costs

Inactive Publication Date: 2011-09-07
GANSU AGRI UNIV
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

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
Initiator CH335 wastewater is strongly acidic wastewater, the above treatment method is not applicable

Method used

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Embodiment Construction

[0024] The following is a detailed description of the treatment and resource utilization process of the 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane (initiator CH335) production wastewater of the present invention through specific examples.

[0025] ① Production intermediate - waste acid treatment process of tert-butyl peroxide

[0026] Collect 18 liters of intermediates for the synthesis of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane (initiator CH335) from the sewage outlet of the production unit - production waste of tert-butyl peroxide acid. The sulfuric acid concentration in the wastewater is 514g / L, CODcr=56101.92mg / L, light yellow liquid.

[0027] Add 18 grams of sodium sulfite to the waste acid (add 1 gram of sodium sulfite per liter of waste water), slowly heat to 60°C, stir for 1.5 hours, and distill under reduced pressure. The distillate is condensed, cooled to room temperature, and separated into layers. The upper layer is the organic phase. Its compo...

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Abstract

The invention discloses a treatment and recycling process for production wastewater of 1,1-di-tert-butyl peroxide-3,3,5-trimethyl-cyclohexane (an initiator CH335). In the process, the production wastewater is collected directly from a drain outlet of a production device and is subjected to stabilized treatment, and after the danger of severe decomposition of organic peroxides in the wastewater due to heating is eliminated basically, tertiary butanol, tert-butyl peroxide and sulfuric acid are separated and recovered from the wastewater, wherein the recovered tertiary butanol, tert-butyl peroxide and sulfuric acid can be recycled repeatedly in the production process. Low-concentration wastewater is separated while chemical raw materials are recovered, and after the separated low-concentration wastewater is subjected to hydrolysis-contact oxidization and C-Fe micro-electrolysis decoloration, the major index of the drained wastewater meets the requirement on water pollutant emission limits of newly built enterprises in 'Discharge Standards of Water Pollutants for Chemical Synthesis Pharmaceutical Industry (GB21904-2008)'.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and relates to a treatment and recycling process of organic peroxide production wastewater, in particular to an initiator 1,1-di-tert-butyl peroxide-3,3,5-tri Treatment and recycling process of wastewater from the production of methylcyclohexane (initiator CH335). Background technique [0002] 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane (initiator CH335) is an organic peroxide initiator. It is mainly used as a crosslinking agent for polyethylene, polystyrene, and ethylene-vinyl acetate copolymer, especially for shrinkable films. [0003] The production process of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane is carried out intermittently, and the water quality and quantity of wastewater, organic matter concentration, pH, BOD / CDO value, etc. vary with the production scale and time. The peak and valley values ​​are very different. 1,1-di-tert-butylperoxy-3,3,5...

Claims

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Application Information

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IPC IPC(8): C02F9/06C02F103/36
Inventor 胡冰胡昌秋虎玉生蒲陆梅
Owner GANSU AGRI UNIV
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