己二酸制备工艺进展

介绍了传统己二酸的生产工艺和几种绿色生产工艺,并作出简单的对比。     

绿色化学与绿色化学教育

绿色化学属于高层级化学,同时也是创造性思想的体现。绿色化学是环境友好化的过程,其主要研究目的在于通过一个基本方法使某产品或过程的本质发生改变,降低其对人体健康和生态环境的不良影响,从源头上解决污染。这对于可持续发展而言非常重要。文章主要分析绿色化学的概念、原则、研究内容以及方向,并提出了绿色化学教育实施的方法与意义。     

引领潮流的绿色化学教学观

＂绿色化学＂是近10年采才产生和发展起来的的一个新概念,一经提出就引起了全世界的关注,并很快被引入化学教学领域.在化学教学过程中渗透绿色化学思想,要通过有效的途径,并注重绿色化学实验的推广.     

绿色化学研究

严重的水环境污染、人气污染和固体废弃物污染;日益增加的资源短缺,如水资源、耕地资源、森林资源、矿产资源的锐减;生态系统的破坏及及其所带来的土地荒漠化;酸雨蔓延;生物多样性减少。不难看出,上述环境问题都是由人类自己制造且大都是现代工业科技发展的副产品。全球气候变暖、臭氧层破坏、资源枯竭等种种环境问题,那一样不是人类“作茧自缚”,自作自受,人类必须自己救自己。人类应该在可梦续发展思想的指引下,进行一次新的工业革命,以解决环境问题求得持续发展。     

己二酸市场前景及发展建议

己二酸是一种重要的基础石油化工原料,近年来中国己二酸消费量持续增长,随着中国扩建和新建的大型己二酸生产装置的陆续投产,正在逐步填补供求缺口,中国供需格局发生了重大变化,今后有可能出现供应过剩、市场竞争进一步加剧的局面。介绍了己二酸的物化性能,分析了己二酸的市场前景,并对今后中国己二酸产业的发展提出了一些建议。     

己二酸市场价格可能继续走低

近期外商报价在2550—2700美元／t（CFR,中国主港）,由于中国现货价格下滑明显,目前倒挂严重,买家对此价格较为排斥。进口己二酸评估价格为2500～2650美元/t（CIF,中国主港）。2010年5月,中国共进口己二酸及其盐和酯6094．8t,进口总金额为13796618美元,进口量较4月有所减少,降幅约为25％。     

二氧化碳替代光气绿色合成聚氨酯

“二氧化碳绿色高新精细化工产业链”项目日前在上海联交所上海市知识产权交易中心进行了现场推介，人气旺盛。该项目独创性地将二氧化碳资源化、绿色化利用，并计划打造出一个利用二氧化碳的新型绿色生态大型化工园区，社会效益和经济效益将十分显著。山东洁晶集团、泰兴精细化工开发区、常熟新材料产业园、上实投资、德信丰益、汉世纪、鼎嘉创投、上创信德等化工及投资界诸多机构纷纷表示关注。     

绿色有机电合成的研究进展

介绍了有机电合成的发展概况.阐述了有机电化学合成的基本原理、应用和优势.论述了有机电化学合成相对于传统有机合成的优势在于可以消除传统有机合成造成的污染的根源.对有机电合成的最新发展方向和应用领域作了探讨,指出有机电化合成将成为21世纪各化学基础学科和应用技术研究的热点.     

己二酸未来发展趋势分析

<正>己二酸是脂肪族二元酸(简称AA),也是一种重要的有机化工原料。己二酸是美国杜邦公司于1937年开始工业化生产的,已有70年的生产历史。世界上,己二酸产品早已进入成熟期,而在我国则是在上世纪70年代才规模化生产的化工新材料。随着科学技术的发展进步,己二酸的用途不断扩大。在工业上,己二酸与己二胺缩聚反应可以生成尼龙66盐,尼龙66盐进一步缩聚反应可以得到尼龙66树脂。与二苯基甲烷二异氰酸酯(纯MDI)结合可     

浓硝酸氧化醇酮残液制取己二酸

探讨以醇酮残液为原料,铜-钒、硅油分别为催化剂、消泡剂,采用浓硝酸氧化制取己二酸的可行性,考察硝酸浓度、用量、反应温度、反应时间、催化剂、消泡剂对己二酸产率的影响,确定适宜工艺路线和工艺参数.结果表明,铜-钒催化可加速反应进程,抑制副反应.己二酸产率可达60%,反应的工艺参数:硝酸浓度55%,硝酸/醇酮残液用量比3.0～3.5、反应温度65±2℃、反应时间2.5小时适宜,回收后的硝酸可循环使用.     

绿色化溶剂-离子液体的研究进展

离子液体作为环境友好的绿色溶剂,在化学反应中主要用于替代传统的有机溶剂,因而降低了对环境的污染,并使产率和选择性得以提高。本文介绍了20世纪90年代末化学界兴起的绿色化学的概念,回顾了离子液体用于石油化工领域的研究情况。     

The influence of green brand innovativeness and value perception on brand loyalty: the moderating role of green knowledge

Building on arguments relating to the differences between innovation and innovativeness and their influences on brand loyalty, this study investigates how green brand innovativeness and value perception influence green brand loyalty. In addition, the influences of a mediating variable green perceived value (GPV) and a moderating variable (consumer green knowledge) on the development process of green brand loyalty are examined. Data were collected using an online survey administered to a consumer panel in China, and structural equation modelling (SEM) was used to test the conceptual model with a sample of 826 Chinese respondents. The results demonstrate that green brand innovativeness was directly associated with brand loyalty and indirectly influenced brand loyalty via GPV. Moreover, green knowledge significantly moderated the relationship between green brand innovativeness and GPV. Therefore, to promote green brand loyalty, organizations must allocate resources into enhancing consumers’ perceptions of green brand innovativeness and green value, and improving their environmental knowledge.     

国外绿色营销发展综述

绿色营销根植于全球生态环境的恶化和人们的绿色需求,是21世纪企业发展的关键因素。根据国外绿色营销发展现状,将其划分为萌芽期,成长期,挫折期和复兴期四个阶段,有助于全面把握绿色营销理论的发展动态,指导中国企业实施绿色营销的实践。     

N-氯代邻苯二甲酰亚胺的合成研究

以苯酐为原料,与尿素反应制得邻苯二甲酰亚胺后,采用在醋酸水溶液中滴加次氯酸钠的方法制备N-氯代邻苯二甲酰亚胺,优化了反应的各种条件,使产品收率达94%以上.     

DL-对羟基苯甘氨酸的合成新工艺

对利用乙醛酸、苯酚、邻苯二甲酰亚胺合成DL-对羟基苯甘氨酸的方法进行了研究.最佳工艺条件为:原料摩尔比乙醛酸∶苯酚∶邻苯二甲酰亚胺=1.0∶1.2∶1.2,十八烷基二甲基苄基氯化铵为催化剂,用量为乙醛酸质量的2%,反应时间为8 h,反应温度为60℃,收率达83%以上,产品纯度为99%以上.     

绿色发展理念引领贸易经济高质量发展研究

当前,中国不断提升生态环境承载能力,不断增强贸易经济绿色发展动能,相关体制机制日益完善,为绿色发展理念引领贸易经济高质量发展创造了有利条件。但在此过程中,也面临着产业转型压力大、绿色发展区域不平衡及绿色发展投入不足等问题。应采取将绿色发展理念贯穿贸易经济发展各领域,坚持制度管控、将绿色理念融入贸易经济高质量发展全过程,大力推动贸易行业绿色产业发展,构建支持力度更大的绿色金融体系等措施,真正实现贸易经济高质量发展。     

Reinforcing competitive advantage through green organizational culture and green innovation

The purpose of this paper is to reveal the relationships among green organizational culture, green innovation and competitive advantage. These relationships were assessed using structural equation modeling. Data were gathered from full-time hotel employees (N: 293) and managers (N: 192) in the Antalya region of Turkey. The results indicate that green organizational culture has a positive effect on green innovation and competitive advantage. Accordingly, green organizational culture is an important determinant for green innovation and competitive advantage. In addition, green innovation acted as a full mediator of the effects of green organizational culture on competitive advantage. Specifically, green organizational culture predicted green innovation, which in turn predicted competitive advantage. Finally, considering that causal studies on green innovation in the hotel industry are limited, this study may contribute to understanding how green innovation affects competitive advantage in the hotel industry.     

壬二酸研究的进展

介绍了近年来臭氧法,双氧水法,高锰酸钾法等制备壬二酸的新进展,并对臭氧法制备壬二酸的机理进行了初步探讨.     

Determinants of green electricity adoption among residential customers in Germany

The label ‘green electricity’ is commonly used to refer to power generated from various renewable natural sources (e.g. wind). The present article develops hypotheses on the effects of eight attitudinal and perceptual characteristics of residential electricity consumers on their propensity to adopt a green electricity supplier. The hypotheses are tested empirically with data generated by means of a standardized telephone survey of 267 household electricity customers of a German regional power supplier. Questionnaire answers are augmented with information derived from the supplier's billing system on a participant's actual annual electricity consumption. Measurement and structural relationship models are obtained via Partial Least Squares analysis. Regardless of a person's level of actual power consumption in the recent past, propensity to adopt green electricity is most strongly influenced by general consumer attitudes towards environmental protection issues and social endorsement of green power use by close social contacts. In the subsample of participants with low actual electricity consumption, the propensity to purchase green energy is significantly positively affected by the weight an individual attaches to electricity prices in supplier selection decisions and the person's belief that his current electricity supplier takes over social responsibility. In contrast, in the subsample of respondents with high actual electricity consumption consumer's willingness to adopt green electricity is significantly enhanced by the degree of perceived dissimilarity among power company offerings. The identification of factors influencing the adoption of green electricity offers both practical implications for marketers of utilities and contributes to the academic knowledge base of a service domain characterized by increasing societal importance.