| Synthesis of N-decyl-1,3-diaminopropanes and its flotation propertieson aluminium silicate minerals |
| |
| 作者姓名： | 胡岳华 曹学锋 李海普 蒋玉仁 杜平 |
| |
| 作者单位： | College of Resources Processing and Bio Engineering，Central South University，College of Resources Processing and Bio Engineering，Central South University，College of Resources Processing and Bio Engineering，Central South University，College of Resources Processing and Bio Engineering，Central South University，College of Chemistry and Chemical Engineering，Hunan Normal University Changsha 410083，China，Changsha 410083，China，Changsha 410083，China，Changsha 410083，China，Changsha 410081，China |
| |
| 基金项目： | Project(G19990 64 90 1)supportedbytheNationalKeyFundamentalResearchandDevelopmentProgramofChina，Project
( 5 992 5 412 )supportedbytheNationalScienceFundforDistinguishedYoungScholarofChina |
| |
| 摘 要： | 1 INTRODUCTIONBauxiteisamajorsourceforaluminaproduction .Bayerprocessfeaturesshortresidencetime ,lowener gyconsumptionandhigh qualityproduct .Asare sult ,itiswidelyusedtotreatthebauxiteofalu minum/silicateratio (A/S)morethan 8.AlthoughthereareabundantaluminiumoxidemineralresourcesinChina ,mostofthemarediasporicbauxitewithhighaluminumcontent ,butlowA/Sratio .Among4 0bauxitediggings ,theaverageAl2 O3andSiO2 con tentsare 6 3.4 1%and 11.5 9% ,respectively ,whiletheaverageA/Sratiois4 6 …
|
Synthesis of N-decyl-1,3-diaminopropanes and its flotation properties on aluminium silicate minerals |
| |
| HU Yue hua ,CAO Xue feng ,LI Hai pu ,JIANG Yu ren ,DU Ping.Synthesis of N-decyl-1,3-diaminopropanes and its flotation propertieson aluminium silicate minerals[J].Transactions of Nonferrous Metals Society of China,2003,13(2). |
| |
| Authors: | HU Yue hua CAO Xue feng LI Hai pu JIANG Yu ren DU Ping |
| |
| Affiliation: | HU Yue hua 1,CAO Xue feng 1,LI Hai pu 1,JIANG Yu ren 1,DU Ping 2 |
| |
| Abstract: | N decyl 1, 3 diaminopropanes (DNs) were synthesized from alkyl amine acrylonitrile at ambient pressure. With the synthesized DNs as collectors, the flotation of kaolinite, pyrophyllite and illite was conducted and the results were interpreted in terms of the structure activity relationship. The DNs are found to be more effective collectors than dodecyl amine, exhibiting the highest recovery over a pH range of 46. Among the DNs examined, DN 12 shows the highest flotation efficiency. The flotation mechanisms were explained in view of the structures of reagents and aluminium silicate minerals. It is demonstrated that DNs can become new selective collectors for reverse floatation to remove aluminium silicate minerals from bauxite. |
| |
| Keywords: | N decyl 1 3 diaminopropane synthesis aluminosilicate reverse floatation structure reactivity relationship |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
