A kind of hygienic dolomite clay composite absorption resin and preparation method thereof
A technology of absorbent resin and dolomite, which is applied in the field of dolomite clay composite absorbent resin and its preparation, can solve the problems of slow liquid absorption speed and high raw material cost of high-absorbent resin, and achieve excellent product performance, reasonable raw materials and process routes, and selection reasonable effect
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Embodiment 1
[0017] A kind of hygienic dolomite clay composite absorbent resin, its preparation steps are as follows:
[0018] ①Crush the dolomite clay containing about 50% dolomite, 20% montmorillonite, 20% attapulgite, and 10% calcite, quartz, and feldspar into a particle size d97 of 0.075 mm of powder;
[0019] ② The raw materials and the ratio by mass parts are: dolomite clay powder 4, acrylic acid 30, 90% sodium hydroxide 12, acrylamide 15, (N, N)-methylene acrylamide 0.004, ammonium persulfate 0.05 , azobisisobutylamidine hydrochloride 0.03, sodium bisulfite 0.02, water 110, the feeding sequence and control conditions during the reaction are: first add dolomite clay powder into the metered water, stir and disperse for 20 minutes, then add acrylic acid, Then start circulating cooling water and add sodium hydroxide, control the neutralization temperature <40°C, then add acrylamide and stir to dissolve for 20 minutes, continue to stir and cool the reaction solution to 25°C, add the pre...
Embodiment 2
[0022] A kind of hygienic dolomite clay composite absorbent resin, its preparation steps are as follows:
[0023] ①Crush the dolomite clay containing about 50% dolomite, 20% montmorillonite, 20% attapulgite, and 10% calcite, quartz, and feldspar into a particle size d97 of 0.075 mm of powder;
[0024] ② Raw materials and proportions by mass are: dolomite clay powder 10, acrylic acid 45, 90% sodium hydroxide 20, acrylamide 22, (N, N)-methylene acrylamide 0.008, ammonium persulfate 0.10, Azobisisobutylamidine hydrochloride 0.045, sodium bisulfite 0.04, water 150, the feeding sequence and control conditions during the reaction are as follows: first add dolomite powder into the metered water, stir and disperse for 20 minutes, then add acrylic acid, and then start the cycle Add potassium hydroxide under cooling water, control the neutralization temperature <40°C, then add acrylamide and stir to dissolve for 20 minutes, continue to stir and cool the reaction solution to 20°C, add t...
Embodiment 3
[0027] A kind of hygienic dolomite clay composite absorbent resin, its preparation steps are as follows:
[0028] ①Crush the dolomite clay containing about 50% dolomite, 20% montmorillonite, 20% attapulgite, and 10% calcite, quartz, and feldspar into a particle size d97 of 0.075 mm of powder;
[0029] ② The raw materials and the ratio by mass parts are: dolomite clay powder 20, acrylic acid 60, 90% sodium hydroxide 28, acrylamide 30, (N, N)-methylene acrylamide 0.010, ammonium persulfate 0.20 , azobisisobutylamidine hydrochloride 0.06, sodium bisulfite 0.05, water 180, the feeding sequence and control conditions during the reaction are as follows: first add dolomite powder into the metered water, stir and disperse for 20 minutes, then add acrylic acid, and then start Add potassium hydroxide under circulating cooling water, control the neutralization temperature <40°C, then add acrylamide and stir to dissolve for 20 minutes, continue to stir and cool the reaction solution to 1...
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