A method, product and application for preparing modified silica adsorbent by utilizing chlorosilane raffinate
A chlorosilane residual liquid, silica technology, applied in the direction of silica, silica, chemical instruments and methods, etc., can solve the problems of irregular shape, large particles, difficult to use, etc., to ensure fineness and uniformity , to avoid self-aggregation, to ensure the effect of effective control
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Embodiment 1
[0036] This embodiment provides a method for preparing a modified silica adsorbent by using chlorosilane raffinate, which specifically includes the following steps:
[0037] Prepare respectively with deionized water a, mass fraction of 0.1% Tween 20 aqueous solution 100ml; b, mass fraction of 1.0% glycerol aqueous solution 100ml; c, mass fraction of 10% ammonia solution 150ml; d, mass fraction 10 ml of 5% γ-aminopropyltriethoxysilane (KH550) solution; and 30 ml of chlorosilane raffinate obtained from Yongxiang Silicon Industry Factory.
[0038] The above-mentioned 0.1% Tween 20 aqueous solution and 1.0% glycerol aqueous solution were all added into a 1000ml four-necked flask, and mixed evenly to obtain a steric hindrance agent solution.
[0039] Then, in the four-necked flask, alternately drop the prepared above-mentioned 10% ammonia solution, 5% γ-aminopropyltriethoxysilane (KH550) solution, and the obtained chlorosilane raffinate, and stir and mix. Under control, all the ab...
Embodiment 2
[0042] This embodiment provides a method for preparing a modified silica adsorbent by using chlorosilane raffinate, which specifically includes the following steps:
[0043] Prepare respectively with deionized water a, mass fraction of 0.08% Tween 80 aqueous solution 100ml; b, mass fraction of 1.2% glycerol aqueous solution 150ml; c, mass fraction of 8% ammonia solution 150ml; d, mass fraction 10 ml of 4% 3-glycidyl etheroxypropyl trimethoxysilane (KH560); and 30 ml of chlorosilane raffinate obtained from Yongxiang Silicon Industry Factory.
[0044] Add 100 ml of 0.08% Tween 80 aqueous solution and 150 ml of 1.2% glycerin aqueous solution prepared above into a 1000 ml four-neck flask, and mix evenly to obtain a steric hindrance agent solution.
[0045] Then, in the four-necked flask, alternately drop the prepared 8% ammonia solution, 4% 3-glycidyloxypropyltrimethoxysilane (KH560), and the obtained chlorosilane raffinate, and Under the condition of stirring and mixing, all the...
Embodiment 3
[0047] This embodiment provides a method for preparing a modified silica adsorbent by using chlorosilane raffinate, which specifically includes the following steps:
[0048] Prepare a, massfraction with deionized water respectively and be 0.09% sodium dodecylbenzenesulfonate surfactant (SDBS) aqueous solution 100ml; B, massfraction be 1.1% glycerol aqueous solution 200ml; C, massfraction are 150ml of 9% ammonia solution; d, 20ml of 3-(methacryloyloxy)propyltrimethoxysilane (KH570) with a mass fraction of 6%; and 30ml of chlorosilane raffinate obtained from Yongxiang Silicon Industry Factory.
[0049] Add 100m of 0.09% sodium dodecylbenzenesulfonate surfactant (SDBS) aqueous solution prepared above and 200ml of 1.1% glycerin aqueous solution into a 1000ml four-neck flask, and mix well to obtain a steric hindering agent solution.
[0050] Then, in the four-necked flask, alternately drop the prepared 9% ammonia solution, 6% 3-(methacryloyloxy)propyltrimethoxysilane (KH570), and t...
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