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A platform for research: civil engineering, architecture and urbanism
Modified diethanolisopropanolamine salt cement grinding aid
The invention discloses a modified diethanolisopropanolamine salt cement grinding aid, and the product comprises the ratio that the mass percentage ratio of waste acid, diethanol amine and epoxy propane quality percentage is adjusted according to (70-1.0):(1-1.5):(0.5-1.0). A production method comprises the steps: adding waste acid in a reactor, starting to stir, adding diethanolamine gradually, after finishing addition, replacing with nitrogen for 2-3 times, then gradually adding epoxy propane, carrying out an addition reaction, curing for 0.5 h, and carrying out decompression dehydration to obtain a solid product. Because an industrial waste acid solution is utilized to prepare the diethanolisopropanolamine salt cement grinding aid, the product cost is greatly reduced, the grinding aiding and strength properties of the product are increased, and economic benefits of enterprises are increased; the industrial waste acid solution is fully utilized, the industrial waste liquid discharge problem is solved, the cost generated from pollution treatment is saved, the environmental pollution is avoided, hazardous waste is utilized, energy is saved, emission is reduced, and low carbon and environmental protection are achieved; and the product is solid and is convenient to transport, so as to reduce the transportation cost.
Modified diethanolisopropanolamine salt cement grinding aid
The invention discloses a modified diethanolisopropanolamine salt cement grinding aid, and the product comprises the ratio that the mass percentage ratio of waste acid, diethanol amine and epoxy propane quality percentage is adjusted according to (70-1.0):(1-1.5):(0.5-1.0). A production method comprises the steps: adding waste acid in a reactor, starting to stir, adding diethanolamine gradually, after finishing addition, replacing with nitrogen for 2-3 times, then gradually adding epoxy propane, carrying out an addition reaction, curing for 0.5 h, and carrying out decompression dehydration to obtain a solid product. Because an industrial waste acid solution is utilized to prepare the diethanolisopropanolamine salt cement grinding aid, the product cost is greatly reduced, the grinding aiding and strength properties of the product are increased, and economic benefits of enterprises are increased; the industrial waste acid solution is fully utilized, the industrial waste liquid discharge problem is solved, the cost generated from pollution treatment is saved, the environmental pollution is avoided, hazardous waste is utilized, energy is saved, emission is reduced, and low carbon and environmental protection are achieved; and the product is solid and is convenient to transport, so as to reduce the transportation cost.
Modified diethanolisopropanolamine salt cement grinding aid
LI SHAOKUAN (author) / LI ZEQUN (author) / WANG FENGYAN (author) / QI YONGQUN (author) / ZHENG HONGSHENG (author) / LIU FULAN (author)
2015-06-17
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Novel cement grinding aid diethanolisopropanolamine salt
| European Patent Office | 2015
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