2005年全国表面活性剂及其原料产销量情况浅析

2005年,中国洗协表面活性剂专业委员会统计组统计了51家主要表面活性剂及其原料生产企业的产销量数据.按表面活性剂产品和原料进行分类统计,表面活性剂产品的统计入围企业数为34家,入围产量为70万吨;原料的统计入围企业数为27家,入围产量为79万吨.产品和原料的入围产量分别比2004年增长了4.5%和2.0%.     

2003年全国表面活性剂及其原料产销量情况分析

2003年统计了41家主要表面活性剂及其原料的生产企业的产销量数据，与上年相比新增企业5家，它们是宿州生物化工、中国日化院。上海花王化学、上海白猫(重庆)公司和上海白猫(重庆)日化公司。西安南风和安庆南风合并于南风集团公司，大连华能和石家庄华辰佳雅因停产未报数据。如按表面活性剂产品和原料划分的话，产品的统计入围企业数为35家，较上年增长了6％，入围产量为629万t，较上年增长了297％。原料的统计入围企业数为18家，较上年增长了125％．入围产量为515万t．较上年增长了     

2001年中国表面活性剂行业产销量情况分析

中国洗涤用品协会授权中国洗协表面活性剂专业委员会 ,统计全国表面活性剂及其原料的生产企业的产销量。现根据２００１年近４０家主要表面活性剂及其原料生产企业报来的产销量数据汇总分析如下。１表面活性剂原料的产销情况１ １全国烷基苯产量已提前实现“十五”规划任务北京燕山石化公司的石蜡裂解法生产烷基苯装置于２００１年下半年停产 ,今后不再生产了。上半年生产了５０００ｔ烷基苯。抚顺洗化、金陵和金桐３家均为脱氢法生产装置。经过扩能改造 ,抚顺洗化厂生产能力已扩产至２０万ｔ,金陵和金桐均扩产至１０万ｔ,至此 ,全国烷基苯…     

2006年全国表面活性剂及其原料产销量情况浅析

2006年中国洗协表委会统计组统计了51家主要表面活性剂及其原料(含油脂化工)生产企业的产销量数据.     

中国洗协表委会科技委第七届一次全委会会议召开

<正>本刊讯"中国洗协表面活性剂专业委员会第七届一次全委会暨信息统计工作会议"和"中国洗协科学技术专业委员会第七届一次权威会议"于2014年9月16日一18日在辽宁省抚顺市召开,来自干中国洗协表面活性剂专业委员会(以下简称表委会)和科学技术专业委员会(以下简称科技委)的64家单位的72位代表出席     

2019 年中国表面活性剂原料及产品统计分析

依据2019年中国洗协表委会针对规模以上企业相关原料及产品产销数据统计,就目前行业主要原料及产品生产现状及市场进行分析,指出2019年国内表面活性剂行业传统原料及产品走势趋于平稳,规模化和集约化特征更加明显。     

中国洗协表委会、科技委第七届一次全委会会议在抚顺召开

<正>【本刊讯】"中国洗协表面活性剂专业委员会第七届一次全委会暨信息统计工作会议"和"中国洗协科学技术专业委员会第七届一次全委会会议"(简称"两委会会议")于2014年9月16日~18日在辽宁省抚顺市召开。来自于中国洗协表面活性剂专业委员会(以下简称表委会)和科学技术专业委员会(以下简称科技委)的64家单位的72位代表出席会议。16日晚上召开了本次会议前的预备会议,参加预备会议的代表有25人,预备会议表决通过了本次会议的会议议程和提交会议表决和选举的第七届表委会和科技委常委以上人选的推荐人选建议名单。     

加强信息交流 建立统计员工作群

17日下午,信息统计中心工作座谈会召开。会议由中国洗协信息部、会员部主任曹宇容主持,参加会议的还有中国洗协理事长郑舞虹、秘书长王燕、高级顾问吴允炎、信息统计中心秘书长边峰,中国洗协表面活性剂专业委员会副秘书长裴鸿,助剂专业委员会熊小玲以及25家企业的统计员。     

1999年全国表面活性剂行业产销情况浅析

据中国洗协表面活性剂专业委员会１９９９年对２４家主要表面活性剂及其原料的生产厂家（公司）的产销情况分析 ,１９９９年行业原料的现状呈现出 :１全国烷基苯的产销平衡全国现有金陵石化烷基苯厂、南京金桐石化公司、抚顺洗涤剂化学厂和北京燕山石化公司等４家生产单位生产烷基苯 ,合计产量为３０．３６万ｔ。据了解 ,基本上均销售了 ,产量比１９９８年（２６．０９万ｔ）增长了１６．４ %。除燕山为裂解法工艺路线外 ,其他均为脱氢法路线 ,占到总产量的９７ %以上。其中抚顺洗化厂产量最大 ,占脱氢法的４５ % ,金陵和金桐合占５５ %。２…     

油脂化学和洗化产业面临的课题及其对策

油脂化学产业是洗涤剂产业和化妆品产业(简称洗化产业)之母,油化产品如脂肪酸、脂肪醇、脂肪胺、各种合成或半合成的酯类以及各种表面活性剂是洗化产品必不可少的基础原料.     

Reactions in Stabilizer and Between Stabilizer and Nitrocellulose in Propellants

HPLC analysis of the stabilizer is one of the major methods in use for surveillance testing of diphenylamine (DPA) stabilized propellants. Often 0.2% DPA is used as a minimum content for safe propellants. In most cases the propellant can be stored much longer after this limit has been reached without any risk for self‐ignition. We report here about a reaction where DPA bonds to nitrocellulose, leaving a non extractable aromatic stabilizing compound left in the propellant, resulting in a longer time to autocatalysis than predicted. Diphenylnitramine is discussed as a possible intermediary compound occurring from the reaction between DPA and nitrocellulose. This should add to a better understanding of the degradation processes in propellants.     

Differences in color naming and color salience in Vietnamese and English

The accepted model of color naming postulates that 11 “basic” color terms representing 11 common perceptual experiences show increased processing salience due to a theorized linkage between perception, visual neurophysiology, and cognition. We tested this theory, originally proposed by Berlin and Kay in 1969. Experiment 1 tested salience by comparing unconstrained color naming across two languages, English and Vietnamese. Results were compared with previous research by Berlin and Kay, Boynton and Olson, and colleagues. Experiment 2 validated our stimuli by comparing OSA, Munsell, and newly rendered “basic” exemplars using colorimetry and behavioral measures. Our results show that the relationship between the visual and verbal domains is more complex than current theory acknowledges. An interpoint distance model of color‐naming behavior is proposed as an alternative perspective on color‐naming universality and color‐category structure. © 2003 Wiley Periodicals, Inc. Col Res Appl, 28, 113–138, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.10131     

中国台湾的催化和催化剂的研究开发

本文重点介绍了台湾省各大学和研究院所对催化及催化剂的教学。研究与开发方面动向,相关催化方面学科带头人的研究领域和主要成果,并给出大量参考文献。     

Designer enzyme and cell applications in industry and in environmental monitoring

Renewed world interest in enzyme biotechnological industries now derives from the expectation that many new biocatalysts will be created by genetic engineering associated with protein engineering designer techniques, or by chemical modification of existing enzymes by use of protein tailoring methods. The biocatalysts produced are mainly enzymes, abzymes (catalytic antibodies) and synthesis (synthetic analogues or mimics), and these will be used in industry, synthesis, therapy: and in bioanalysis of components of foodstuffs, and the environment including water, air and soil. The biocatalysts, including whole cells, are firstly incorporated into a particular bioreactor form by use of enzyme engineering techniques such as immobilization, and are then used, as appropriate, to modify their substrates. Improved processing or enhanced products are thereby achieved in the case of manufacturing industry: or monitoring signals are generated, often in the form of a measurable change in current flow, in the case of environmental biosensors. Designer enzymes and cells can be made now for identified applications where the presently available biocatalysts are inadequate, incompatible or uncompetitive.     

EZH2 Down-Regulation Exacerbates Lipid Accumulation and Inflammation in in Vitro and in Vivo NAFLD

Non-alcoholic fatty liver disease (NAFLD) is one of the most prevalent, chronic liver diseases, worldwide. It is a multifactorial disease caused by complex interactions between genetic, epigenetic and environmental factors. Recently, several microRNAs, some of which epigenetically regulated, have been found to be up- and/or down-regulated during NAFLD development. However, in NAFLD, the essential role of the Polycomb Group protein Enhancer of Zeste Homolog 2 (EZH2), which controls the epigenetic silencing of specific genes and/or microRNAs by trimethylating Lys27 on histone H3, still remains unknown. In this study, we demonstrate that the nuclear expression/activity of the EZH2 protein is down-regulated both in livers from NAFLD rats and in the free fatty acid-treated HepG2. The drop in EZH2 is inversely correlated with: (i) lipid accumulation; (ii) the expression of pro-inflammatory markers including TNF-α and TGF-β; and (iii) the expression of miR-200b and miR-155. Consistently, the pharmacological inhibition of EZH2 by 3-Deazaneplanocin A (DZNep) significantly reduces EZH2 expression/activity, while it increases lipid accumulation, inflammatory molecules and microRNAs. In conclusion, the results of this study suggest that the defective activity of EZH2 can enhance the NAFLD development by favouring steatosis and the de-repression of the inflammatory genes and that of specific microRNAs.     

讲授中有研究，学习中有运用

本文从化学反应工程分析的讲授体会出发,分析探讨了硕士学位课程的性质,讲授过程中教材的选取、内容和方法的把握,以及如何根据学生的具体情况,采用更有针对性的课堂讲解的议题。     

泥火中的人与马

陶瓷首饰是伴随着社会发展和文化背景诞生出来的.本人运用陶瓷艺术创作的方式把陶泥作为原材料制作出人与马系列的陶瓷首饰吊坠,分别以《人与马的战争》、《人与马的迁徙》、《人与马的生活》三个系列作为创作内容,赋予了陶瓷首饰丰富的文化内涵和浓郁的人文气息.