高分子表面活性剂在水处理剂中的应用

概述了高分子表面活性剂的特性 ,用作水处理剂的表面活性剂的重要品种 ,应用及展望。     

造纸用水溶性高分子表面活性剂

表面活性剂是造纸化学品的重要组成部分,对目前造纸工业中常用的一些水溶性高分子表面活性剂的制法来源、用途及特点进行了介绍,最后展望了高分子表面活性剂在造纸业中的前景.     

高分子表面活性剂的特性及其在造纸工业中的应用

论述了高分子表面活性的特性，制备方法以及在造纸各个工序中的应用。高分子表面活性剂由于具有很好的分散、絮凝、增溶、乳化、稳泡、增稠、成膜和黏附等作用，在造纸工业中具有多种用途；重点阐述了高分子表面活性剂作为松香乳化剂、浆内施胶剂、表面施胶剂、涂布颜料分散剂、废纸脱墨助剂、助留助滤剂、树脂控制剂、废水絮凝剂、抗油抗水剂、纸张柔软剂、造纸消泡剂和阻垢分散剂的作用原理及应用特性；最后还展望了高分子表面活性剂在造纸业中的前景以及今后应重点研究开发的方向。     

2009(第四届)中国国际表面活性剂产品技术及应用展览会

上届展会回顾"2008(第三届)中国国际表面活性剂展览会"于2008年10月27-28日在上海世贸商城胜利召开。作为受到业界广泛认可的权威专业展览会,展览会吸引了来自世界10多个国家和地区,     

水处理及造纸化学品

有机污水生物处理技术工业应用项目高效低耗，吉林将投资145亿多元治理松花江等流域水污染，我国近期发生的重大环境污染事件加大检查力度,我国造纸化学品开发热点     

凯米拉携多项可持续性造纸创新技术和产品亮相第九届中国国际造纸化学品展览会

<正>第九届中国国际造纸化学品及造纸设备展览会于2014年10月29日在上海世博展览馆盛大开展,全球领先的芬兰化学品公司凯米拉携旗下多项高性能包装及纸板制造水处理相关技术助阵本届展会,与业界分享其先进的造纸相关水处理化学品技术及前沿的清洁环保理念,为推动中国乃至整个亚太地区造纸化学品行业的发展添薪加火。这场为期两天的造纸行业盛会吸引了众多一线造纸和水处理化学品牌及下游厂商的参与。随着     

2011(第六届)中国国际表面活性剂产品、技术及应用展览会

时间:2011年11月7-9日地点:上海世博主题馆主办单位:中国化工信息中心支持单位:巴斯夫特性产品有限公司江苏飞翔化工股份有限公司广州丰天化工有限公司南京古田化工有限公司上届展会回顾"2010(第五届)中国国际表面活性剂展览会"于2010年11月3-4日在上海世贸商城胜利召开。作为受到业界认可的权威专业展览会,展览会吸引了来自世界10多个国家和地区,100余家     

亲水性高分子表面活性剂的研究及应用进展

综述了高分子表面活性剂的特性、分类情况,介绍了双亲嵌段型、无规聚合型和接枝型高分子表面活性剂性能特点。并且阐述了亲水性高分子表面活性剂在涂料、油墨、石油化工、造纸、水处理等领域中的应用。     

有机硅、氟高分子表面活性剂在建材中的应用发展

综述了有机硅!含氟高分子表面活性剂及含有机硅氟的高分子表面活性剂的种类和研究进展，介绍了它们在涂料工业!塑料工业等建材领域中的应用。     

2009(第四届)中国国际表面活性剂产品技术及应用展览会

时间:2009年10月26-27日地点:上海世贸商城(上海市兴义路99号)主办单位:中国化工信息中心承办单位:全国化工国际展览交流中心支持单位:陶氏化学(Dow Chemical)     

Activities in Spain

The need for desalting sea and brackish water in peninsular Spain arises from the fact of the hydrographic irregularity so much in the time as in the space. In the former case this is owed to the fact that rivers in this country are more in the nature of torrents, since rainfall is so uneven throughtout the year and from one year to another. Irregularity in so far as space has caused the country to be known traditionally as Dry Spain and Wet Spain. The former includes desert areas, while there is practically no lack of water in many parts of the latter. Thus, the hydrographic region in the north, the site of rivers whose waters flow into the Atlantic and Cantabrian seas between the french and portuguese borders represents only a 11% of the entire country surface, yet this is where almost 40% of the natural resources of water are located. On the other hand, it is in the drier regions of Spain where farming of the greatest economic value to the country is located. Consequently, the Mediterranean littoral presents a great deficit in filling the current and the future demand (which, following the world trend, will triple in the next twenty years), since its share of total hydric resources is only 10%, although its holds the 30% of the total population.Deficiencies owed to irregularity in time and space are being corrected in large measure by artificially controlling flows with hyperannual reservoirs, thus making it possible to store 100% of rainfall ocurring in the course of the wet season for use throughtout the dry season.The shortcoming in so far as space is also being partially alleviated by means of major transfers from one stream to another, as is the case with the Tajo-Segura rivers, etc. However if we establish a hydraulic inventory of the current situation we would find that rivers in the northern half of the country reflect a surplus while there is extreme dearth in those on the Mediterranean among which latter should be pointed out the areas of Tarragona, Alicante, Almeria, Málaga, etc.Industrial concentration at Tarragona requires desalination of sea water. The same is the case for Alicante, Almeria and Málaga although demand in these arises from increase numbers of tourists. Short-term planning of desalination facilitiesare necessary in all.Installation of sea water desalination plants is now being required in the Balearics mainly in Ibiza, Formentera, etc.As regards the Canary Islands and notwithstanding desalination facilities already installed in the eastern islands, planning of future facilities is being considerably delayed.It is the purpose of this paper to conduct an analysis of the problem of water scarcity both in the peninsula (Mediterranean) and in the Balearic and Canary Archipiélagos looking to the year 2000. Resources and future demand are quantified in detail and the deficit that will occur from 1981 to 2000 being established. It is proposed that desalination facilities we consider necessary be planned with a view to resolving this problem in time.Additionally, a summary is offered of accomplishments to date in so far as municipal and industrial plants, as well as experimental or pilot plants.     

烯肟菌酯高效体的合成与杀虫活性

研究了烯肟菌酯2个高杀菌活性异构体的合成,通过工艺条件控制,可减少无效体的生成。对分离出的4个异构体分别进行了黏虫、桃蚜的杀虫活性测定。结果表明,其中的2个异构体表现出较好的杀虫活性。     

Measuring Enzymatic Activities with Nanopores

Nanopores have become powerful and versatile tools for measuring single molecules since their emergence in the mid-1990s. They can be used to sense a wide variety of analytes including metal ions, small organic molecules, DNA/RNA, proteins, etc. to monitor chemical reactions, and to sequence DNA. Recently, enzymes have been studied by using nanopore technologies. In this Minireview, we highlight recent efforts in developing nanopore enzymology and categorize the related work into three groups: 1) measuring enzymatic activities with nanopore-enzyme hybrids; 2) measuring enzymatic activities through sensing their catalytic products with nanopores; 3) the use of enzymes for DNA sequencing and DNA/protein translocation. At the end, we discuss the challenges and opportunities in nanopore enzymology.     

Global Firms' Activities in China

<正> INEOS Phenol and Sinopec Yangzi Petrochemical Company have signed a Letterof Intent to study and negotiate a jointventure to build and operate a phenol/acetonemanufacturing site at the NanjingChemical Industry Park in Jiangsuprovince,eastern China.INEOS announcedJanuary 1 st.The expected annual capacity of the newfacility will be 400 000 tons of phenol and250 000 tons of acetone making it the largestplant of its kind in China.The facility     

四氯甲胺磷的合成及杀虫活性

[目的]设计并合成新型甲胺磷衍生物。[方法]在温和条件下,甲胺磷与三氯乙醛反应,再经氯化亚砜氯化得四氯甲胺磷。[结果]通过1H NMR和MS确定了化合物的结构,并进行了生物活性测试。四氯甲胺磷在1.3 mmol/L的浓度下对橘全爪螨、菜青虫的致死率分别为32%和42%。[结论]四氯甲胺磷对橘全爪螨、菜青虫具有较好的杀虫活性。