- Waste liquid treatment device in TPO production technology
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The utility model relates to a waste liquid treatment device in TPO production technology, including be used for synthetic waste liquid. The bottom of the esterification reaction kettle is provided with first discharge outlets for discharging the material phase, first discharge ports are connected with the material-phase charging ports of the synthesis reaction kettle. In the device, the synthetic waste liquid in the esterification reaction kettle is subjected to esterification reaction and liquid separation to obtain the material phase. The material phase enters the synthesis reaction kettle, and is mixed with hydrogen peroxide to react, divide liquid and alkali to obtain tert-butyl peroxide. The waste liquid treatment device realizes resource utilization of the synthetic waste liquid, contains TPO synthesis section oxidant, greatly reduces raw material purchasing and process production cost TPO production technology, and has obvious economic value.
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Paragraph 0142-0147
(2021/09/29)
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- A method of preparing di-tert-butyl peroxide
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A method of preparing di-tert-butyl peroxide is disclosed and belongs to the technical field of organic synthesis. The method includes a step of adding tert-butyl alcohol and sulfuric acid into a first reaction device, reacting under stirring, and controlling the temperature and reaction time of the reaction under stirring in the first reaction device to obtain a tert-butyl hydrogen sulfate liquid, a step of adding a recovered mother liquor into a second reaction device, adding crude tert-butyl alcohol and the tert-butyl hydrogen sulfate liquid into the second reaction device, and controlling the temperature and reaction time of a reaction under stirring in the second reaction device to obtain a reaction product, a step of feeding the reaction product to a liquid separating tank, and performing liquid separating to obtain an upper oil phase that is the di-tert-butyl peroxide and a lower water phase that is a mother liquor adopted as a recovery mother liquor for a next turn of reactions. The method is simple and short in process steps, and can allow the content of the di-tert-butyl peroxide in the upper oil phase to be 97.5% or above, thus meeting requirements on industrial scaled-up production. The method avoids environment pollution, saves raw materials, reduces the cost and achieves circular economy.
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Paragraph 0019; 0021; 0023; 0025; 0027
(2017/02/24)
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