Treatment and resource-utilizing technology of dibenzoyl peroxide production wastewater

A dibenzoyl peroxide and waste water production technology, which is applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of high concentration of organic peroxide waste water, waste, There are no problems such as recycling of resources, achieving the effect of realizing resource utilization, easy operation, and saving processing costs

Inactive Publication Date: 2011-06-15
GANSU AGRI UNIV
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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 diese

Method used

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Example Embodiment

[0026] The processing and resource utilization process of the dibenzoyl peroxide (initiator BPO) production wastewater of the present invention will be described in detail below through specific examples.

[0027] 1. Dibenzoyl peroxide (initiator BPO) synthesis mother liquor treatment process:

[0028] Collect 20 liters of dibenzoyl peroxide production mother liquor from the sewage outlet of the production unit. Wastewater COD cr =33848.32mg / L; pH=12.5; Contains 15.1% non-volatile solids.

[0029] The treatment process includes: recovery of benzoic acid, separation of low-concentration wastewater, recovery of sodium chloride, sodium chloride purification, and biochemical treatment of low-concentration wastewater.

[0030] Recycling benzoic acid: first add hydrochloric acid to the wastewater to acidify to pH<5, and filter the acidified benzoic acid.

[0031] Separate low-concentration wastewater: After separating benzoic acid, add 20 grams of sodium sulfite (1 gram per liter of wastewat...

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Abstract

The invention discloses a treatment and resource-utilizing technology of the production wastewater of dibenzoyl peroxide (initiator is benzoyl peroxide). The technology is as follows: high concentration production wastewater is collected from the sewage outlet of a production device to perform stabilization treatment, and after the risk that the organic peroxide in wastewater is violently decomposed when heated is basically eliminated, benzoic acid and sodium chloride are recycled from wastewater. Benzoic acid can be used repeatedly in production and sodium chloride is a by-product. After the low concentration wastewater without benzoic acid and sodium chloride performs hydrolysis-contact oxidation and C-Fe micro-electrolysis decoloring treatment, the main indexes of discharged water meet the requirements of the discharge standard of water pollutants for pharmaceutical industry chemical synthesis products category (GB21904-2008) on the water pollutants emission limits of new business.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and relates to a process for the treatment and recycling of organic peroxide production wastewater, in particular to a process for the treatment and resource utilization of dibenzoyl peroxide (initiator BPO) production wastewater. Background technique [0002] Dibenzoyl peroxide (initiator BPO) is a highly active organic peroxide. It is mainly used as a polymerization initiator for PVC and polyacrylonitrile and as a crosslinking agent for unsaturated polyester and acrylate. In the rubber industry, it is used as a crosslinking agent for silicone rubber and fluororubber. Flour, oil, wax bleaching agent, cosmetic auxiliary. [0003] Its production characteristics are: the process is carried out intermittently, the water quality and quantity of wastewater, organic matter concentration, pH, salt content, BOD / CDO value, etc. vary with the production scale and time, and the pea...

Claims

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Application Information

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IPC IPC(8): C02F9/14C01D3/04C01D3/14C07C63/06C07C51/02
Inventor 胡冰胡昌秋虎玉生蒲陆梅
Owner GANSU AGRI UNIV
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