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| Preparation of Surfactants from Waste Oil and Application in Flotation Deinking |
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| DOI：10.11980/j.issn.0254-508X.2017.05.005 |
| Key Words:waste oil deinking agent amide surfactants quaternary ammonium salt surfactants |
| Fund Project:辽宁省科技厅，基于纤维素纳米晶体模板的二氧化钛纳孔薄膜材料的制备(201602054)。 |
| Author Name | Affiliation | | 唐 振 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | | 胡 硕 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | | 孙广卫* | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | | 韩 颖 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 | | 周景辉 | 大连工业大学轻工与化学工程学院,辽宁大连,116034 |
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| Abstract:Two kinds of surfactants fatty amide propyl dimethyl amine and fatty amide type quaternary ammonium salt could be synthesized by waste edible vegetable oil (Abbreviation: waste oil). The optimal conditions of synthesizing fatty amido propyl dimethyl amine were obtained by conditional experiments with temperature of 110℃, time of 2 h, material ratio of 1∶1.1, conversion rate of 62%; the optimal conditions of synthesizing fatty acid type quaternary ammonium salt using isopropyl alcohol as solvent were determined as the follows: temperature 72℃, time 0.5 h, solvent content 20%, conversion rate 82.7%. This paper verified the deinking effenciencies of these two surfactants for old newspaper, and compared their deinking results with AEO-9 and commercial soap. Results showed that the deinked pulp brightness using these two surfactants separately was superior to AEO-9 and commercial soap, the brightness of the pulp deinked with the mixture of these two surfactants in the ratio of 1∶1 could reached to 54.3%, these two surfactants mixed with AEO-9 separately could achieve 6 and 6 percentage points higher brightness than using AEO-9 alone． |
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