%0 Dataset
%T New flotation collector data set for efficient separation of scheelite and calcite (March 2020)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/0529bd60-cc91-4bf0-bb60-d086f050ca95
%W NCDC
%R 10.12072/ncdc.UTCMW.db2166.2022
%A Yang Liming
%K Scheelite;calcite;new flotation agent
%X As an important strategic metal, tungsten is often known as "industrial tooth". China's tungsten resources are mainly poor, fine and miscellaneous. With the depletion of excellent wolframite resources, scheelite has gradually become the mainstream raw material of tungsten smelting industry. However, natural scheelite is often associated with other gangues, resulting in great difficulty in Scheelite Flotation. How to realize the efficient separation of scheelite and gangue minerals has always been the technical bottleneck to be broken through in the tungsten smelting industry. Flotation is a widely used separation method at present, but the traditional cationic collector has the problems of poor water solubility and low flotation performance. In order to solve the above problems, based on the surface electrical difference between scheelite and gangue mineral calcite, a new hydroxypropylamine cationic collector was synthesized to realize high-efficiency flotation and directional separation between scheelite and gangue mineral calcite. This topic focuses on the synthesis, performance characterization and flotation mechanism of hydroxypropylamine cationic collectors.A new hydroxypropylamine surfactant was successfully synthesized under laboratory conditions. The results show that the product is an effective flotation collector in the range of pH 6.0 - 10.0, and the flotation separation effect is good. The results of single mineral flotation test show that NTIA has good floatability for Scheelite and poor floatability for calcite. The flotation test results of artificial mixed ore are basically consistent with those of single mineral flotation. At pH 7.0 and collector concentration of 50 mg / L, the grade and recovery of scheelite are 62.56% and 96.44% respectively, which can achieve the best separation effect. In the wettability analysis, the contact angle of scheelite reaches 97.469 ± 0.1133 in the presence of NTIA, indicating that the hydrophobicity of scheelite surfa