Rosin-based quaternary ammonium salt for preparing efficient environment-friendly multifunctional cooling water biocide as well as preparation method and application of rosin-based quaternary ammonium salt
A rosin-based quaternary ammonium salt, multifunctional technology, applied in chemical instruments and methods, preparation of organic compounds, preparation of amino hydroxy compounds, etc., can solve the problem of shortening the service life of equipment, reducing the heat exchange effect of equipment, and consuming large petrochemical products. and other problems, to achieve the effect of good slime stripping, control of bacteria and algae reproduction, and control of slime growth
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Embodiment 1
[0035] Preparation of rosin-based quaternary ammonium salt for the preparation of efficient environmental protection multifunctional cooling water biocide:
[0036] (1) Propylenepimaric acid diamine (10g) and epichlorohydrin (12g) were mixed in ethanol (10ml) solvent, reacted at 20°C for 15h, and the solvent was removed to obtain product 1.
[0037] (2) Product 1 (5g) and N,N-dimethyltetradecylamine (12g) were stirred and reacted at 15°C in ethanol (12ml) solvent for 24h. Recrystallize in a mixed solvent, dry, and remember the target product 1#.
[0038] figure 1 Among them, i is N, N-dimethyl tetradecylamine, ii is propylene pimaric acid diamine), iii) is the infrared spectrum of the rosin base quaternary ammonium salt that is used to prepare efficient environmental protection multifunctional cooling water biocide, from Fig. It can be seen that in the i curve, the 1461cm-1 place is the C-N base characteristic peak of N, N-dimethyltetradecamine; observe the ii curve, and the...
Embodiment 2
[0041] Preparation of rosin-based quaternary ammonium salt for the preparation of efficient environmental protection multifunctional cooling water biocide:
[0042] (1) Propylenepimaric acid diamine (9g) and epichlorohydrin (12g) were mixed in ethanol (16ml) solvent, reacted at 25°C for 24h, and the solvent was removed to obtain product 1.
[0043] (2) After product 1 (5g) and N, N-dimethyltetradecamine (14g) were stirred and reacted at 25°C in ethanol (12ml) solvent for 25h, in ethanol and ethyl acetate with a volume ratio of 1:5 Recrystallize and dry in a mixed solvent, remember the target product 2#, the obtained spectrum is consistent with that of Example 1, and will not be repeated.
Embodiment 3
[0045] Preparation of rosin-based quaternary ammonium salt for the preparation of efficient environmental protection multifunctional cooling water biocide:
[0046] (1) Propylenepimaric acid diamine (8g) and epichlorohydrin (12g) were mixed in ethanol (14ml) solvent, reacted at 27°C for 18h, and the solvent was removed to obtain product 1.
[0047] (2) Product 1 (5g) and N,N-dimethyltetradecylamine (16g) were stirred and reacted for 15h at 25°C in ethanol (17ml) solvent, and then dissolved in ethanol and ethyl acetate with a volume ratio of 1:5 Recrystallize and dry in a mixed solvent. Remember the target product 3#, the obtained spectrum is consistent with Example 1, and will not be repeated.
[0048]The preparation of Example 1 was magnified 200 times for application test to prepare the rosin-based quaternary ammonium salt for the preparation of high-efficiency, environment-friendly and multifunctional cooling water biocide, and the obtained spectrogram was consistent with t...
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