砷酸钠是含砷固体废物污染物的主要成分，对环境健康造成严重威胁。结晶是从砷碱渣浸出液中分离纯化砷酸钠的有效方法之一。但由于可观察性差，且缺乏分离纯化数据，结晶过程受到限制。本文设计了带有磁场发生器的激光探测系统，研究了恒定组分环境下砷酸钠的溶解度、亚稳区宽度、界面张力、界面熵因子、晶体成核和生长速率。结果表明，随着磁场的存在，溶解度、亚稳区宽度、界面张力和界面熵因子均减小。磁场缩短了结晶诱导时间，改变了砷酸钠的成核和生长速度。此外，x射线衍射和红外分析表明，磁场对砷酸钠的晶体结构没有影响，表明磁场增强砷酸钠的结晶过程是一种可行的工程应用方法。\n
\n砷酸钠冷却结晶过程中各项基础热力学和动力学数据集，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、公式推理，自主产生。", "ds_process_way": "
采用BET、XRD、XPS、IR、TEM系统软件模块进行模拟。实验采用低磁场强度0.33T-0.5T不同磁场条件下探究其对砷酸钠冷却结晶的影响，研究发现磁场的添加会影响砷酸钠在水中的溶解度，介稳区以及诱导期等基础特性，揭示了磁场能够运用于工业结晶过程的可能性。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2019-03-01 00:00:00", "ds_acq_end_time": "2019-03-31 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": 133737, "ds_files_count": 2, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "ab09b13a-3f54-41b7-bff3-6ae5f5ecf9fa.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "使用申明：“砷酸钠冷却结晶过程中各项基础热力学和动力学数据集（2019年3月）”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.db2167.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-05-31 08:54:48", "last_updated": "2025-06-30 16:27:07", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.UTCMW.db2167.2022", "i18n": { "en": { "title": "Basic thermodynamic and kinetic datasets for the cooling crystallization process of sodium arsenate (March 2019)", "ds_format": "Excel", "ds_source": "
Indoor experiments, formula reasoning, independently generated.", "ds_quality": "
The data quality is good.", "ds_ref_way": "", "ds_abstract": "
Sodium arsenate is the main component of arsenic containing solid waste pollutants, posing a serious threat to environmental health. Crystallization is one of the effective methods for separating and purifying sodium arsenate from the leaching solution of arsenic alkali residue. However, due to poor observability and lack of separation and purification data, the crystallization process is limited. This article designs a laser detection system with a magnetic field generator to study the solubility, metastable zone width, interfacial tension, interfacial entropy factor, crystal nucleation and growth rate of sodium arsenate in a constant composition environment. The results indicate that with the presence of a magnetic field, solubility, metastable zone width, interfacial tension, and interfacial entropy factor all decrease. The magnetic field shortened the crystallization induction time and altered the nucleation and growth rate of sodium arsenate. In addition, X-ray diffraction and infrared analysis showed that the magnetic field had no effect on the crystal structure of sodium arsenate, indicating that magnetic field enhanced crystallization process of sodium arsenate is a feasible engineering application method.\n
\nThe basic thermodynamic and kinetic datasets for the cooling crystallization process of sodium arsenate were obtained through experimental methods and formula inference calculations. The data format is 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": "Simulations were conducted using BET, XRD, XPS, IR, and TEM system software modules. The experiment used a low magnetic field intensity of 0.33T-0.5T under different magnetic field conditions to explore its effect on the cooling crystallization of sodium arsenate. The study found that the addition of a magnetic field would affect the solubility, metastable zone, and induction period of sodium arsenate in water, revealing the possibility of applying a magnetic field to industrial crystallization processes.", "ds_ref_instruction": "The usage statement: \"basic thermodynamic and kinetic data set of sodium arsenate cooling crystallization process (March 2019)\" comes from the national key R & D plan \"high efficiency 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": [ "砷酸钠", "磁场", "亚稳区" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "江西省南昌市" ], "ds_time_tags": [ 2019 ], "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" }