Peng, Xiangyu published the artcileDevelopment and utilization of a novel hydrogen bonding enhanced collector in the separation of apatite from quartz, COA of Formula: C14H31NO2, the publication is Minerals Engineering (2022), 107477, database is CAplus.
In the light of the adsorption difference of cationic collectors on quartz and apatite, an addnl. hydrogen bond functional group can be introduced into the traditional collector mol.-dodecylammonium acetate (DDA) to achieve high-efficient separation of minerals. In this study, a new surfactant-N-(2-hydroxy-1, 1-dimethylethyl) dodecylamine (HDMEA) was synthesized in our laboratory and acted as a new-type amine collector in the reverse flotation separation of apatite from quartz. The results of micro-flotation tests indicated that the separation performance of HDMEA was significantly better than that of DDA. When the concentration of HDMEA was 20 mg/L at pH 6.43, the apatite with 38.57% grade and 95.8% recovery could be achieved in mixed-flotation tests. The adsorption mechanism of DDA and HDMEA on quartz and apatite was comparably explored by the measurements of zeta potential, FTIR, contact angle, and AFM as well as the DFT calculations These results demonstrated that improving the hydrogen bonds adsorption on quartz (by -NH- and -OH groups) and increasing the steric-hindrance effect on apatite help to achieve efficient flotation separation of quartz and apatite.
Minerals Engineering published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, COA of Formula: C14H31NO2.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia