磷酸活化粘胶基活性碳纤维的研究：Ⅲ—磷酸活化粘胶基活性碳 …

磷酸活化粘胶基活性碳纤维对各种有机蒸汽具有良好的吸附性能,在３５０～５００℃活化或用较大沈度磷酸活化所制备的ＶＡＣＦ－Ｐ对有机蒸汽特别是极性的甲醇和乙醇吸附量明显增大,在１２８℃的热空气中处理２０ｍｉｎ后ＶＡＣＦ－Ｐ基本上可完全解吸,低温活化的ＶＡＣＦ－Ｐ对六价铬的吸附量达到了一些高性能离子交换纤维的水平,ＶＡＣＦ－Ｐ具有一定的氧化还原能力,对金离子的还原吸附量达７００～１１００ｍｇ／ｇ。     

SO_2在含氮沥青基活性炭纤维上的脱除 Ⅰ含氮沥青基活性炭纤维的脱硫能力研究

由水和氨混合物活化制得的不同比表面积及氮含量的含氮沥青基活性炭纤维［ＰＡＣＦ（ＮＨ３）］在Ｏ２和Ｈ２Ｏ存在下脱除ＳＯ２的能力进行了研究。ＸＰＳ结果表明，ＰＡＣＦ（ＮＨ３）表面的含氮官能团主要为类吡咯氮、类吡啶氮及铵盐，它们的主要作用是增强对水的吸附。当比表面积相近，氮含量增加时或者氮含量相近，比表面积增大时，均导致ＰＡＣＦ（ＮＨ３）的脱硫能力增强，这与ＰＡＣＦ（ＮＨ３）对水的吸附量增加有关。     

SO2在含氮沥青基活性炭纤维上的脱除：Ⅰ含氮沥青基活性炭纤维的脱 …

由水和氨混合物活化制得的不同比表面积及氮含量的含氮沥青基活性炭纤维（ＰＡＣＦ（ＮＨ３））在Ｏ２和Ｈ２Ｏ存在下脱除ＳＯ２的能力进行了研究。ＸＰＳ结果表明，ＰＡＣＦ（ＮＨ３）表面的含氮官能团主要为类吡咯氮，类吡啶氮及铵盐，它们的主要作用是增强对水的吸附，当比表面积相近，氮含量增加时或者氮含量相近，比表面积增大时，均导致ＰＡＣＦ（ＮＨ３）的脱硫能力增强，这与ＰＡＣＦ（ＮＨ３）对水的吸附量增加有关。     

磷酸活化活性炭纤维的生产工艺及应用研究

对磷酸活化生产活性炭纤维的工艺、产品结构、以及产品在贵金属的吸附回收和油品脱硫净化方面的应用进行了研究,结果表明随着磷酸浓度升高,产品比表面积显著提高,收率略有提高,但磷酸浓度超过35％后,产品的强度会明显下降。扩大生产中,炭化活化温度－400℃最佳。产品微孔丰富,微孔孔径为0.55nm-0.66nm。所生产的纤维用于从电镀废液中回收银和钯取得较好效果。产品经稀碱中和并负载钴盐后对汽油中硫醇的吸附处理达到了市售水蒸气活化聚丙烯腈基活性炭纤维的水平。     

活性碳纤维对氙气的吸附

用不同基体制备的活性碳纤维的孔径分布有明显变化,吸附氙气的量明显不同．聚乙烯醇缩甲醛ＡＣＦ有较好的吸附量,活化温度的升高以及活化时间的延长均不利于氙气的吸附,而降低吸附体系的温度,可以明显地提高活性碳纤维对氙气的吸附量．     

活性碳纤维吸附的研究 Ⅱ-磷酸活化活性碳纤维的制备工艺与吸附性能关系

本文研究了磷酸活化ＡＣＦ的得率、比表面积和吸附性能的关系，发现磷酸活化ＡＣＦ得率高，对有机蒸汽有较好的吸附能力，但对水溶液中亚甲基兰的吸附量很低。研究了一些改善的工艺，发现采用水蒸气二次活化处理磷酸活化ＡＣＦ的方法，可获得得率较高，比表面积较大，对有机蒸汽的吸附量高，而且对亚甲基兰的吸附量显著提高等综合性能良好的ＡＣＦ。     

活性碳纤维吸附的研究：Ⅱ—磷酸活化活性碳纤维的制备工艺与吸附性能…

本文研究了磷酸活化ＡＣＦ的得率，比表面积和吸附性能的关系，发现磷酸活化ＡＣＦ得率高，对有机蒸汽有较好的吸附能力，但对水溶液中亚甲基兰的吸附量很低，研究了一些改善的工艺，发现采用不气气二次活化处理磷酸活化ＡＣＦ的方法，可获得率较高，比表面积较大，对有机蒸汽的吸附量高，而且对亚甲基兰的吸附量显著提高等综合性能良好的ＡＣＦ。     

亚甲基蓝和Ag^＋在活性炭纤维上的共吸附

研究了水蒸汽活化和化学活化两类活性纤维（ＡＣＦ）对水溶液中单组分亚甲基蓝和Ａｇ（ＮＨ３）＾＋２以及两者共存时的吸附特征，ＡＣＦ对水溶液中亚甲基蓝的吸附量主要取决于其表面积和孔分布，ＡＣＦ对Ａｇ＾＋的还原一吸附能力则主要取决其表面的化学性质，相同条件下，化学活化的ＡＣＦ对银离子的还原吸附量（３００ｍｇ．ｇ＾－１）比水蒸活化的ＡＣＦ的还原－吸附量（１００ｍｇ．ｇ＾－１）高，溶液中亚甲基蓝的存在显著改变     

低成本活性碳纤维新制法

美国伊约诺斯大学研制成功一种活性碳纤维 (ＡＣＦ)的新制法。用此法制造的ＡＣＦ吸附去除环境中的微量污染物质的效率和选择率较高 ,制造成本也可大幅度降低 ,由以往ＡＣＦ的成本 1 0 0美元 / 1ｂ可降至接近粒状活性炭 (ＧＡＣ)的成本 1～ 2美元 / 1ｂ。长期以来一般都使用市售ＧＡＣ吸附污染物质 ,虽其价格低廉 ,能吸附多种不同物质 ,但存在如下缺点 :①选择性低 ,②吸附速度慢 ,③吸附装置造价高 ,④不能活化到 1 0 0 %容量 ,⑤再活化费用大。新法制造ＡＣＦ是在玻璃纤维上涂布酚醛树脂 ,在控制条件下使涂布部分活化形成符合需要的微孔。…     

酸缓蚀剂在A3钢表面吸附成膜的研究

对ＦＰ－Ｃ、ＦＱ－Ｃ、ＦＡ－Ｃ３种自制聚氮杂环季铵盐缓蚀剂在Ａ３负我表面吸附缓蚀的测定表明，这类酸缓蚀剂具有抑制全面腐蚀和点蚀的功能。     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

Brainstorming for ISO Strategy 2016-2020

正Responding to ISO’s appeal for survey for the to-be-developed ISO Strategy Plan for 2016-2020,SAC hosted a special workshop over the needs and comments of various fi elds on June 8 in Beijing.The workshop was attended by ISO President-elect and Ansteel General Manager Zhang Xiaogang,SAC Vice-Administrator Yu Xinli,and 30 experts from     

CNAS Passes APLAC's PTP Review

正The review group of Asia Pacific Laboratory Accreditation Cooperation(APLAC)carried out a 4-day peer review of the proficiency testing provider(PTP)for China National Accreditation Service for Conformity Assessment(CNAS)from July 28 to 31,2014.CNAS passed the PTP review with excellent performance.Two senior peer reviewers of APLAC made a comprehensive,rigorous and detailed review of CNAS’s PTP accreditation activities,and made the on-spot inspection of the review groups in Shanghai and Shenzhen respectively.     

新闻(英文)

正China and Greece Sign the Standardization Cooperation Agreement Witnessed by Chinese Premier Li Keqiang and Greek Prime Minister Antonis Samaras,AQSIQ Minister Zhi Shuping and ELOT Chairman and Executive Director Angelos Tolkas signed the SAC-ELOT Standardization Cooperation Agreement.The Agreement is one of the critical cooperation documents signed during Li Keqiang’s visit in Greece,encouraging China and Greece to     

Win-Win Cooperation

正The Chinese Premier Li Keqiang's recent trip to the UK has reinforced the China-UK comprehensive strategic partnership;just as the British Prime Minister David Cameron put it,"the relationship is gaining in strength,depth and understanding"after a bucket of business deals being inked worth more than 30 billion US dollars.From the first agreement signing in 2004 to the new agreement of mutual standards recognition and adoption in     

Systematic Approach for Emerging Industry

正A national directory of standards complexes for strategic emerging sectors was recently developed and released jointly by 12governmental departments,namely,SAC,NDRC,MOST,MIIT,MEP,MOA,AQSIQ,State Forest Administration,State Administration of Science and Technology for National Defense,State Oceanic Administration and National Railway Administration.     

Strictest Pollutants Emission Standards

正Four new national standards on air pollutant emission control offi cially issued by the Ministry of Environment Protection(MEP)together with AQSIQ and SAC has been brought into force from July 1,2014.The Emission standard for air pollutants of coal-burning,oil-burning and gasfi red boilers,which is the strictest emission standard historically,will tackle the stubborn pollution problem of boilers and waste incineration in most of China’s regions.     

Instructions to Authors

New Carbon Materials is a bimonthly journal published with the permission of the Ministry of Science and Technology and of the State News and Publication Agency.The journal is sponsored by the Institute of Coal Chemistry,Chinese Academy of Sciences,and is published by Science Press.Aims and Scope     

Progress on Standards Copyright Protection

正Recently,National Copyright Administration of China(NCAC)has rewarded 215 organizations and 179 individuals for their outstanding efforts on investigating standards copyright infringement and piracy in 2013.Hua Jianhua,the Deputy-Director of National Standards Copyright Protection Workgroup Office won a third prize of the national individual award.In 2012,SAC set up the national standards copyright protection working group,and developed policies to crack down standards infringement and piracy behaviors and to strengthen standards copyright protection.