Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Copper tailing modifier as well as preparation method and application thereof
The invention discloses a copper tailing modifier as well as a preparation method and application thereof. The copper tailing modifier is prepared from the following raw materials in percentage by weight: 12-39% of water glass, 24-31% of sodium silicate, 21-30% of calcium nitrate, 12-19% of sodium hydroxide, 1-3% of sodium carboxymethyl cellulose and 3-5% of hydroxypropyl methyl cellulose, whereinthe total quantity is 100%, and the percentages are mass percentages. During application, the copper tailings are firstly subjected to primary activation treatment, that is, a grinding aid triethanolamine is added into the copper tailings to grind the copper tailings into fine powder with uniform particle size to obtain activated copper tailings, and then the activated copper tailings are uniformly mixed with a copper tailing modifier. Sodium carboxymethyl cellulose and hydroxypropyl methyl cellulose are used, so that the hydrophobicity and cohesive force of the copper tailings can be improved, and the compaction characteristic and the structural stability of the doped copper tailing mixture are further improved. Sodium hydroxide is added, so that silicate components in the copper tailings can be excited by alkalinity, and the pavement properties such as strength and durability of the copper tailings are improved.
本发明公开了一种铜尾渣改性剂及其制备方法和应用，铜尾渣改性剂由以下原料制备得到：水玻璃12～39%，硅酸钠24~31%，硝酸钙21～30%，氢氧化钠12~19%，羧甲基纤维素钠1~3%，羟丙基甲基纤维素3~5%，总量100%；所述百分比均为质量百分比。应用时，先将铜尾渣进行初步活化处理，即向铜尾渣中加入助磨剂三乙醇胺将其磨成粒径均匀的细粉得到活化铜尾渣，再将活化铜尾渣与铜尾渣改性剂混合均匀。使用了羧甲基纤维素钠和羟丙基甲基纤维素可以改善铜尾渣的憎水性和粘聚力，进而改善掺杂铜尾渣混合物的压实特性以及结构的稳定性。加入氢氧化钠可以碱性激发铜尾渣里的硅酸盐成分，提高铜尾矿的强度和耐久性等路用性能。
Copper tailing modifier as well as preparation method and application thereof
The invention discloses a copper tailing modifier as well as a preparation method and application thereof. The copper tailing modifier is prepared from the following raw materials in percentage by weight: 12-39% of water glass, 24-31% of sodium silicate, 21-30% of calcium nitrate, 12-19% of sodium hydroxide, 1-3% of sodium carboxymethyl cellulose and 3-5% of hydroxypropyl methyl cellulose, whereinthe total quantity is 100%, and the percentages are mass percentages. During application, the copper tailings are firstly subjected to primary activation treatment, that is, a grinding aid triethanolamine is added into the copper tailings to grind the copper tailings into fine powder with uniform particle size to obtain activated copper tailings, and then the activated copper tailings are uniformly mixed with a copper tailing modifier. Sodium carboxymethyl cellulose and hydroxypropyl methyl cellulose are used, so that the hydrophobicity and cohesive force of the copper tailings can be improved, and the compaction characteristic and the structural stability of the doped copper tailing mixture are further improved. Sodium hydroxide is added, so that silicate components in the copper tailings can be excited by alkalinity, and the pavement properties such as strength and durability of the copper tailings are improved.
本发明公开了一种铜尾渣改性剂及其制备方法和应用，铜尾渣改性剂由以下原料制备得到：水玻璃12～39%，硅酸钠24~31%，硝酸钙21～30%，氢氧化钠12~19%，羧甲基纤维素钠1~3%，羟丙基甲基纤维素3~5%，总量100%；所述百分比均为质量百分比。应用时，先将铜尾渣进行初步活化处理，即向铜尾渣中加入助磨剂三乙醇胺将其磨成粒径均匀的细粉得到活化铜尾渣，再将活化铜尾渣与铜尾渣改性剂混合均匀。使用了羧甲基纤维素钠和羟丙基甲基纤维素可以改善铜尾渣的憎水性和粘聚力，进而改善掺杂铜尾渣混合物的压实特性以及结构的稳定性。加入氢氧化钠可以碱性激发铜尾渣里的硅酸盐成分，提高铜尾矿的强度和耐久性等路用性能。
Copper tailing modifier as well as preparation method and application thereof
一种铜尾渣改性剂及其制备方法和应用
LI XIAOJING (Autor:in) / XIE HAO (Autor:in) / LIU GUOHUA (Autor:in) / SUN BO (Autor:in)
09.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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