氯化焙烧-水浸工艺提取锂云母矿中铷、铯、锂

以锂云母矿为研究对象,进行了硫酸熟化-水浸、氟化酸浸、碳酸钙焙烧-水浸、硫酸钙焙烧-水浸、氯化焙烧-水浸工艺探索试验,确定了氯化焙烧-常温水浸工艺更适用于锂云母矿综合提取铷、铯、锂,同时考察了该工艺下焙烧温度、焙烧时间、添加剂种类及用量、浸出液固比、浸出时间对铷、铯、锂浸出率的影响。结果表明：在添加剂氯化钙用量50%、碳酸钠用量20%、焙烧温度750℃、焙烧时间6 h、浸出液固比1∶1条件下,锂云母矿经氯化焙烧-常温水浸1 h可获得95%以上的铷浸出率、94%以上的铯浸出率、87%以上的锂浸出率,同时在焙烧过程中碳酸钠吸收氯化钙释放的含氯气体,使该工艺的环境污染小。     

采用硫酸化焙烧—水浸工艺从锂云母精矿中提取锂

研究了采用硫酸化焙烧—水浸工艺从Li_2O品位3.23%的锂云母浮选精矿中回收锂,考察了焙烧过程中硫酸质量浓度、酸矿体积质量比、焙烧温度、焙烧时间,浸出过程中液固体积质量比、浸出温度、浸出时间对Li_2O浸出率的影响。结果表明:在硫酸质量浓度1 127 g/L、酸矿体积质量比1.5/1、焙烧温度150℃条件下焙烧12 h后,对焙烧渣在液固体积质量比3/1、室温下浸出40 min,Li_2O浸出率达98.39%,浸出效果较好。     

锂云母硫酸盐法提取锂铷铯的研究

采用硫酸盐法综合回收锂云母中的锂、铷、铯。结果表明,以硫酸钾、硫酸钙、硫酸钡作为混合盐,锂云母与混合硫酸盐质量比为1∶0.45,在900℃焙烧1h后稀酸浸出,锂、铷、铯浸出率分别为92.2%、61.5%、63.8%。浸出液经净化除杂后,浓缩沉锂,可获得零级碳酸锂,沉锂母液可用于铷、铯回收。     

从含锂矿石酸性浸出液中提取锂试验研究

研究了采用氢氧化铝吸附沉淀锂—焙烧—水浸工艺从含锂矿石酸性浸出液中提取锂。结果表明:在搅拌时间5 h、溶液pH=7、吸附温度40℃条件下用氢氧化铝吸附沉淀锂,锂沉淀率为98.7%;沉淀物在500℃下焙烧40 min,然后用水浸出,控制液固体积质量比1.5∶1、浸出温度45℃、浸出时间4 h,锂浸出率达99%,锂的回收效果较好。     

稀硫酸优浸工艺分离废旧钛酸锂材料中锂钛的研究

以废旧锂离子电池负极材料钛酸锂为原料,经预处理后,利用稀硫酸优先浸出工艺分离回收废料中的Li和Ti,考察了硫酸浓度、液固比、浸出温度和浸出时间在酸浸过程中对Li和Ti浸出率的影响。试验结果表明:优化的稀硫酸优先浸出工艺参数为硫酸浓度4mol/L,液固比6∶1,水浴温度80℃,反应时间4h;在此条件下,Li一次浸出率为90%,Ti浸出率为1.08%。     

从失效汽车尾气催化剂中提取铈和镧的研究

采用硫酸熟化焙烧—酸浸工艺从失效汽车尾气催化剂中提取铈、镧,主要研究了酸料比、焙烧温度、焙烧时间、浸出温度、浸出酸度、浸出时间等对铈、镧浸出率的影响。结果表明,最佳工艺条件为:酸料比0.9,150℃焙烧3h,浸出液固比4∶1,浸出硫酸浓度1.0mol/L,浸出温度60℃,浸出时间4h。此时,铈、镧的平均浸出率分别为85.80%和85.01%。     

用氯化焙烧—水浸工艺从钨尾矿中提取有价金属铷锂钾

研究了采用氯化焙烧—水浸工艺从钨尾矿中提取铷、锂和钾。考察了尾矿粒度、氯化剂种类及用量、尾矿焙烧温度和时间及水浸液固质量比和温度对铷、锂、钾回收率的影响。试验结果表明:对粒度为-0.5 mm占95%的尾矿,在CaCl_2、NaCl和尾矿质量配比为3∶3∶10条件下于950℃下焙烧2 h,所得高温焙砂与纯水按液固质量比2∶1混合浸出2 h,铷、锂、钾浸出率分别为87.6%、75.9%和75.6%,浸出效果较好。     

高铁含锌烟尘浸出工艺研究

对锌烟尘硫酸浸出提取锌工艺条件进行了研究,分别采用正交试验与单因素试验考察浸出酸浓度、液固比、浸出时间、浸出温度对锌烟尘中锌、铁的浸出率的影响。结果表明:较优浸出工艺条件为硫酸浓度150 g/L、液固比7∶1、浸出时间3 h、浸出温度90℃,在较优浸出条件下,锌浸出率可达95%以上。     

从黏土型锂矿中高效浸出锂的研究

采用焙烧—酸浸的方法从某Li_2O品位为0.64%的黏土型锂矿中浸出锂,考察了焙烧时间和焙烧温度对Li_2O浸出率的影响,利用正交试验研究了酸浸工艺中浸出温度和时间、硫酸浓度和液固比对Li_2O浸出率的影响。结果表明,黏土型锂矿在600℃焙烧30min后,锂焙烧渣在浸出温度90℃、浸出时间30min、硫酸浓度1.5mol/L、浸出液固比为6的条件下搅拌浸出,Li_2O浸出率最高达92.97%,浸出效果良好。     

低品位铷铯矿处理试验研究

介绍了低品位铷铯矿采用氯化焙烧提取铷铯的方法,详细考查了焙烧过程添加剂的用量、焙烧温度和浸出液固比等技术参数对铷、铯入液率的影响。试验结果表明,该工艺可处理低品位铷铯矿,采用技术参数:氧化钙和氯化钙分别添加原矿的30%和15%,焙烧温度800℃,液固比4∶1,铷、铯入液率高≥97%。     

深云立交桥梁检测及加固改造

根据深云立交桥梁的检测结果，对该桥目前的整体状况、工作状态，及其使用情况做出综合评价，对桥的病害原因进行了分析，并提出合理的加固方案。     

《儿子与情人》的语码转换与男女二元对立

劳伦斯小说《儿子与情人》一个鲜明的语言特色就是标准英语和当地方言频繁的语码转换。莫瑞尔用方言来对抗妻子,而妻子坚持用标准英语,偶尔也用方言来讽刺、挖苦丈夫。语码转换反映了劳伦斯男女二元对立的哲学思想。     

Status and solidarity in social comparison: Agentic and communal values and vertical and horizontal directions.

Social comparison involves positioning the self relative to others on a vertical or status dimension (ranging from upward to downward comparisons) and a horizontal or solidarity dimension (ranging from contrastive to connective comparisons). Across 3 studies in which 389 undergraduates recorded everyday social comparisons (n = 4,417), downward and connective comparisons were rated as more helpful and mood enhancing than upward and contrastive comparisons. The effects of horizontal comparisons were greater for people for whom solidarity was an important value; however, the effects of vertical comparisons were not greater for people who valued status. The roles of the comparison target, topic, and situation were also explored; for example, noticing undesirable features of the target enhanced status but undermined solidarity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

材料科学技术转型发展与钢铁创新基础设施的建设

摘要：在第4次工业革命浪潮的推动下,钢铁科学与技术正在经历数字化、智能化转型。钢铁行业全流程各工序均为“黑箱”,为多场、多相、多变的巨系统,具有复杂相关关系和遗传效应等。这些不确定性带来了巨大的挑战。挑战和机遇并存。这些不确定性提供了智能化和数字化技术的应用场景资源;钢铁行业极为丰富的大数据提供了挖掘其中蕴含客观规律的数据资源;现代的数据科学、智能技术为解决不确定性问题提供了强大的手段。以数据为中心,以工业互联网为载体,以实验工具、数字数据、计算工具为支撑,建设钢铁企业材料创新基础设施,将可以大幅度提高研发效率,降低研发成本,有力地支撑钢铁材料科学与技术的转型发展。实验工具平台除了传统的实验室仪器装备和中试装备之外,实际生产线被作为主要的实验工具。这些实验工具提供丰富、精准、写实的历史数据和现实生产数据,特别是生产线装备提供实际生产大数据,蕴含着生产过程中的全部规律,是极宝贵的数据资源。利用机器学习、深度学习等现代数据挖掘技术为计算工具,对这些数据资源进行处理、分析、计算,将数据转换为高保真度模型,可以得到具有“原位分析能力”的数字孪生。在工业互联网的总体架构下,以数字孪生为核心,组成信息物理系统,构建起基于数据自动流动的状态感知、实时分析、科学决策、精准执行的闭环赋能体系,解决生产制造、应用服务过程中的复杂性和不确定性问题,提高资源配置效率,实现资源优化,对材料行业转型发展提供关键技术支撑。虚实映射、实时交互、精准控制的信息物理系统与材料创新基础设施合二为一,以材料创新基础设施为基盘,形成具有“原位分析能力”的数字孪生,建设钢铁生产全流程、一体化的信息物理系统,必将推进钢铁行业智能制造蓬勃开展和数字化、智能化转型。     

Voices of fear and anxiety and sadness and depression: The effects of speech rate and loudness on fear and anxiety and sadness and depression.

Two studies investigated the role of expressive vocal behavior (specifically, speech rate and loudness) in fear and anxiety and in sadness and depression. In the 1st study, participants spoke about personally experienced fear and anxiety-arousing and neutral events using 3 different voice styles: fast and loud, normal, and slow and soft. In the 2nd study, participants spoke about personally experienced sad or depressing and neutral events using the same 3 voice styles. In both studies, the participants' highest levels of subjective affective and cardiovascular (CV) arousal occurred when they spoke about the emotional events in a mood-congruent voice style: fast and loud in the case of fear and anxiety, and slow and soft in the case of sadness or depression. Mood-incongruent voice styles canceled the heightened levels of CV arousal normally associated with these negative emotions. The voice-style manipulation had no significant effect on the participants' levels of CV arousal during the neutral discussions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Praise and Blame and Robinson.

Daniel Robinson suggests that much of the civil and criminal law "serves as the institutionalized form of praise and blame". Indeed it does. Pulling at this thread of Robinson's tapestry leads the reader straightaway to a host of truths about how law and morality not only intersect, but work together in harmony. "[L]aw", Robinson says, is a "vivid expression of deeper and impenetrably complex moral theories". This essay explores several of these harmonies, but focuses on two. One is that political society must be seen as the cooperation of free persons according to law, which persons hold common moral understandings. The second has to do with retribution as the moral justifying aim of punishing criminals. The author goes beyond Robinson's limited praise of retribution, and shows that some central features of our practice of punishment are understandable only within the retributive framework. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

钢铁产品交易与展示平台的设计与应用

为解决单个企业的信息化投资风险、从整体上降低企业信息化投入,针对大邱庄钢铁产业的类型特点,设计了一种新型信息化公共服务平台。详细阐述了钢铁产品展示及交易平台的建设内容及系统开发技术。该平台集产品展示、信息查询、用户管理功能于一体,实现了全自动、全智能的在线管理和维护,适用于中小型企业。该平台的应用最大化地发挥了大邱庄的产业优势,对大邱庄工业园区的宣传和市场开拓起到了一定的作用。     

Aging and negative affect: The rise and fall and rise of anxiety and depression symptoms.

The relationship between aging and negative affect is dynamic and complex. Although prior studies have often cited lower prevalence rates of anxiety and mood disorders among older individuals, these studies may miss the dynamic relationship between symptoms and aging. To evaluate a nonlinear model of the relationship between aging and negative affect, the author examined measures of neuroticism, anxiety, and depression symptoms in a cross-sectional, community sample (N = 335), ages 18 to 93. Results indicated a curvilinear relationship, with mean symptom levels increasing during early adulthood (until the mid-30s) and then showing a small decline until older adulthood (the mid-70s), when symptoms again increase with age. (PsycINFO Database Record (c) 2010 APA, all rights reserved)