在白钨矿浮选中高效分离脉石矿物是一个持久性的科研课题。由于白钨矿资源进一步贫乏、细杂，工业生产投入成本有限，因而浮选药剂务必在来源、价格、效率上都达到要求。阳离子捕收剂是一种很有潜力的白钨矿常温浮选药剂，如季铵盐阳离子捕收剂在硅酸盐浮选工艺中表现出了良好的浮选性能。相比与伯胺盐，季铵盐几乎不受pH变化的影响，它具有一个很好的pH适用性。因此，季铵盐基团是构建适应更宽pH范围的新型捕收剂的理想选择。与传统表面活性剂相比，双子表面活性剂活性更高，恰好也能利用Gemini的双子季铵结构搭建捕收剂亲固基，加强对白钨矿表面吸附响应。
\n如上所述，双子表面活性剂可能是白钨矿泡沫浮选的理想捕收剂。更重要的是，双子表面活性剂从未被报道用于白钨矿浮选。本文主要研究研究新型捕收剂对含钙矿物的浮选规律及作用机理，对白钨矿常温浮选有着重要意义。结果表明，Gemini阳离子捕收剂HDDA对白钨矿及其脉石矿物方解石单矿物的浮选行为研究表明，在pH 6-11和0.5×10-4mol/L捕收剂浓度下，新型Gemini季铵盐捕收剂在分离白钨矿和方解石的试验中具有优良的选择性，与NaOL相比，HDDA表现出优越的浮选性能。在单矿物试验的实验结论支持下，以0.5×10-4mol/L HDDA和NaOL为收集剂，在不同的pH值条件下，对人工混合矿物进行浮选分离。根据产率和回收率的数据，更能证明HDDA是一种对白钨矿和方解石具有优良选择性的捕收剂。
\n浮选实验过程中各项数据集，采用实验方法和公式推理计算获得，数据格式为十进制(.xls)，数据量为3组，共16个实验。", "ds_source": "
室内实验，自主产生。", "ds_process_way": "
浮选实验过程中各项数据集，采用实验方法和公式推理计算获得。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2020-03-01 00:00:00", "ds_acq_end_time": "2020-03-31 00:00:00", "ds_acq_place": "江西省南昌市", "ds_acq_lon_east": 115.45, "ds_acq_lat_south": 28.116666666666667, "ds_acq_lon_west": 116.55, "ds_acq_lat_north": 29.166666666666668, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 503447, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "df5d7f1c-3730-4415-81f8-0067496592cf.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "使用申明：“一种对白钨矿和方解石浮选分离具有广泛pH适应性和高选择性的新型捕收剂数据集”来源于国家重点研发计划《大型煤矿和有色矿矿井高效利用技术与示范》（项目编号：2018YFC0406400）。", "ds_from_station": null, "organization_id": "4f9aad20-0a6f-4efd-9b8b-70cd10164ea3", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.UTCMW.db2190.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-05-31 09:46:41", "last_updated": "2025-06-30 16:28:36", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.UTCMW.db2190.2022", "i18n": { "en": { "title": "A novel collector dataset with wide pH adaptability and high selectivity for flotation separation of scheelite and calcite (March 2020)", "ds_format": "Excel", "ds_source": "
Indoor experiment, independently generated.", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
Efficient separation of gangue minerals in scheelite flotation is a persistent scientific research topic. Due to the further scarcity and impurities of scheelite resources, as well as limited industrial production input costs, flotation reagents must meet the requirements in terms of source, price, and efficiency. Cationic collectors are a promising flotation agent for scheelite at room temperature, such as quaternary ammonium salt cationic collectors, which have shown good flotation performance in silicate flotation processes. Compared with quaternary ammonium salts, quaternary ammonium salts are almost unaffected by pH changes and have good pH applicability. Therefore, quaternary ammonium salt groups are an ideal choice for constructing novel collectors that can adapt to a wider pH range. Compared with traditional surfactants, Gemini surfactants have higher activity and can also utilize Gemini's quaternary ammonium structure to build collector affinity groups, enhancing the adsorption response of scheelite surface.
\nAs mentioned above, gemini surfactant may be an ideal collector for scheelite foam flotation. More importantly, Gemini surfactants have never been reported for the flotation of scheelite. This article mainly studies the flotation laws and mechanisms of new collectors on calcium containing minerals, which is of great significance for the room temperature flotation of scheelite. The results showed that the flotation behavior of Gemini cationic collector HDDA on scheelite and its vein mineral calcite single mineral was studied. At pH 6-11 and a concentration of 0.5 × 10-4mol/L collector, the new Gemini quaternary ammonium salt collector showed excellent selectivity in the separation of scheelite and calcite experiments. Compared with NaOH, HDDA exhibited superior flotation performance. Supported by the experimental conclusions of single mineral experiments, flotation separation of artificially mixed minerals was carried out using 0.5 × 10-4mol/L HDDA and NaOL as collectors under different pH conditions. Based on the data of yield and recovery rate, it can be further proved that HDDA is a collector with excellent selectivity for scheelite and calcite.
\nDuring the flotation experiment, various datasets were obtained through experimental methods and formula inference calculations. The data format was decimal (. xls), with a total of 16 experiments and 3 sets of data.
", "ds_time_res": "日", "ds_acq_place": "Nanchang City, Jiangxi Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "During the flotation experiment, various datasets were obtained through experimental methods and formula inference calculations.", "ds_ref_instruction": "\r\nUsage statement: \"A novel collector dataset with wide pH adaptability and high selectivity for flotation separation of scheelite and calcite\" is sourced from the National Key Research and Development Program \"Efficient Utilization Technology and Demonstration of Large Coal Mines and Nonferrous Mines\" (Project No. 2018YFC0406400)." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "白钨矿", "方解石", "浮选分离" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "江西省南昌市" ], "ds_time_tags": [ 2020 ], "ds_contributors": [ { "true_name": "杨利明", "email": "yangliming0809185@126.com", "work_for": "南昌航空大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杨利明", "email": "yangliming0809185@126.com", "work_for": "南昌航空大学", "country": "中国" } ], "ds_managers": [ { "true_name": "敏玉芳", "email": "myf@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "其他" }