碱洗塔洗塔系统的优化

介绍了氯乙烯合成工段碱洗塔洗塔工艺流程,并针对存在的问题对其进行了优化升级,使碱洗塔自控洗塔、配碱,提高了系统的自动化控制水平,节约了水资源,也降低了废水处理系统的负荷,最大限度地提高了碱液的利用率,提高了工作效率,增加了经济效益,     

个性营销能否撑起陶瓷企业那片天

前些天在杂志上看到过一个故事,说的是中国人和犹太人的区别,一个犹太人建了一所加油站,生意很好,第二个犹太人来了,就在加油站旁边建了一座购物中心,生意同样很好,第三个犹太人来了,就在旁边又建了一座游乐场,生意照样很好,第四个犹太人来了,就开了一家4S店,生意也是好的不得了,第五个犹太人来了,他建的是公共卫生间,也赚到了钱。可是在我国呢,第一个人建了一个加油站,赚钱了,第二个人看到了,觉得有利可图,也建了一个加油站,结果第三个,第四个,     

焦炉生产操作改进

介绍了焦炉生产中的改进措施,通过改进装煤方式,减少了装煤冒烟;配制新型填料,增强了炉体维护;改进了1M管的冲洗方式;改进炉顶水箱槽的高度;降低上升管底座的高度,杜绝连接处冒烟;改进装煤孔底座。通过采取这些改进措施,大大降低了生产成本,改善了职工的操作环境,降低了职工的劳动强度,提高了职工的工作效率,有效地保障了生产的平稳顺行。     

带式过滤机在多品种氢氧化铝生产中的应用

介绍了带式真空过滤机的工作原理及其在多品种氢氧化铝生产方面的应用情况,并对带式真空过滤机使用过程中存在的问题进行了改造。改造之后,提高了洗涤过滤效率,降低了滤饼水分,降低了能耗,提高了产量,确保了产品质量,取得了较好的经济效益。     

高庄煤矿供热系统的改造

高庄煤矿针对原锅炉供热系统存在的问题进行了改造,拆除原锅炉,采用邻矿电厂的富余蒸气作热源,安装热交换器组。改造后保证了供热质量,节约了能源、资源,提高了矿区环境质量,降低了运行维护费用,节省了人力资源,减少了占地面积,节约了各项检查检测费用。     

2010年度工作会议

<正>2010年1月16日—17日,公司召开了2010年度工作会议。会议认真回顾总结了2009年的主要工作,分析了当前的形势和机遇,部署了2010年的工作任务。会上,公司董事长蒋明作了重要讲话,总经理毛绍融作了行政工作报告,党委副书记陈百河作了党委工作报告,副总     

患者住院费用明细在临床中的应用

住院费用明细的实施,让患者真正明白了医疗费用的每一笔开支,增加了医院的透明度,密切了医患关系,维护了医患双方的利益,赢得了患者及家属的信任,减少了医疗纠纷,树立了医院良好的社会形象。     

庄信万丰发布《铂金2009年年鉴》

据庄信万丰公司最近出版的《PLATINUM 2009》报道,2008年,全球铂金市场出现了11.7t的短缺,铂金的供应量下降了9.5%,达到了185.7t。汽车尾气净化催化剂行业对铂金的需求下降了8.2%,达到了118.3t。除去回收料,全球首饰行业对铂金原材料的需求下降了6.2%,达到了42.5t。     

焦炉生产操作改进

介绍了焦炉生产中的改进措施,通过改进装煤方式,减少了装煤冒烟;配制新型填料,增强了炉体维护;改进了1M管的冲洗方式;改进炉顶水箱槽的高度;降低上升管底座的高度,杜绝连接处冒烟;改进装煤孔底座.通过采取这些改进措施,大大降低了生产成本,改善了职工的操作环境,降低了职工的劳动强度,提高了职工的工作效率,有效地保障了生产的平...     

湿法除尘技术在三氯氢硅生产中的应用

分析了三氯氢硅生产过程中水冷器堵塞严重的原因,介绍了湿法除尘技术在三氯氢硅行业中的研究和应用.湿法除尘技术的应用有效地解决了冷凝系统的堵塞问题,使得整个生产系统实现长期稳定运行,不仅提高了生产效率,降低了生产成本,解决了频繁拆洗水冷器造成的现场污染,改善了工作环境,降低了劳动强度,同时杜绝了安全隐患.     

Aromatic Products from Reaction of Lignin Model Compounds with UV-Alkaline Peroxide

A series of guaiacyl and syringyl lignin model compounds and their methylated analogues were reacted with alkaline hydrogen peroxide while irradiating with UV light at 254 nm. The aromatic products obtained were investigated by gas chromatography-mass spectrometry (GC-MS). Guaiacol, syringol and veratrol gave no detectable aromatic products. However, syringol methyl ether gave small amounts of aromatic products, resulting from ring substitution and methoxyl displacement by hydroxyl radicals. Reaction of vanillin and syringaldehyde gave the Dakin reaction products, methoxy-1,4-hydroquinones, while reaction of their methyl ethers yielded benzoic acids. Acetoguaiacone, acetosyringone and their methyl ethers afforded several hydroxylated aromatic products, but no aromatic products were identified in the reaction mixtures from guaiacylpropane and syringylpropane. In contrast, veratrylpropane gave a mixture from which 17 aromatic hydroxylated compounds were identified. It is concluded that for phenolic lignin model compounds, particularly those possessing electron-donating aromatic ring substituents, ring-cleavage reactions involving superoxide radical anions are dominant, whereas for non-phenolic lignin models, hydroxylation reactions through attack of hydroxyl radicals prevail.     

Analysis of the volatile combustion products of vinyl plastics

The extensive use of plastics for insulation and building materials has created interest in the possible toxicity of their combustion products. Three poly(vinyl chloride) homopolymers, a vinyl chloride-vinyl acetate copolymer, and formulations of two of the homopolymers and the copolymer have been examined to determine the composition and toxicity of their combustion products. Differential thermal analysis and thermal gravimetric analysis were used to study the breakdown process which occurred in several steps, the largest and first being the release of hydrogen chloride from the polymer at about 300°C. Approximately 50 products of combustion were then determined qualitatively by using either infrared spectroscopy or a combination of gas chromatography and mass spectroscopy. Quantitative analyses were carried out on 22 of the combustion products, and quantitative changes with varying air supply, temperature, and heating rate were determined. A comparison of the products of the polymers and their formulations is given.     

水泥中放射性物质与比活度

放射性污染是建筑材料主要的环境污染方式之一,水泥以及水泥制品是建筑材料中重要的放射性污染源之一。建筑材料的放射性污染会在日常的工作和生活中严重危害人体的健康,故而水泥以及水泥相关制品中的放射性污染需要重点关注和讨论。本文主要讨论水泥中放射性污染物质的种类以及其对人体的危害,同时对我国水泥产品中主要放射性物质的含量进行分析,对比国家相关标准,了解现有水泥产品中放射性物质对人体的影响程度。     

The relationship between container colors and the beauty benefits of skin care products

This study explored the best color selections to match the benefits of beauty products based on rankings obtained from an experimental perception of different skin care product containers. Gender (64 males, 75 females) and cultural (76 Taiwanese, 63 Malaysians) differences were also compared, aiming to explore color associations and emotional bonding by using psychophysical testing methods. A survey of 205 market samples showed that nearly half of the existing skin care product containers had a white body color. White appeared frequently on containers for skin whitening, firming, exfoliating, antiaging, and antiacne products. However, skin moisturizing products used an equal amount of white and blue on their containers. The psychophysical experiment results showed that participants felt that white best matched skin whitening products, red matched skin firming and antiaging products, blue matched skin moisturizing products, black matched exfoliating products, and green matched antiacne products. Neither gender nor cultural differences were found to be significant. Comparing the results with color emotion studies, it was found that (1) for color emotion weight, firming products were related to heaviness, whereas whitening products were connected to lightness; (2) for color emotion heat, whitening, moisturizing, exfoliating and antiacne products were aligned with coolness; and (3) for color emotion activity, product container colors were not related, except slightly for firming products. These findings suggest that psychological responses to color meaning are context‐ and experience‐dependent, meaning that selection of colors to match beauty benefits is based more on people's expectations of the products than their color emotion response.     

Mobil公司BOPP生产及对我国的启示

介绍了Mobil公司BOPP薄膜产品的性能、牌号、用途及开发,并就我国PP产品的市场开发提出了相应的建议。     

MS在测定天然产物中的研究进展

天然产物的使用由来已久，关于其成分的研究也受到了人们的注视。但是其成分复杂，检测困难，因此现代分析仪器的迅速发展为其带来了相当大的方便。本文重点介绍MS在天然产物中的应用及新的研究成果。     

Toxicity of thermal degradation products of polyethylene and polypropylene

Pyrolysis, thermo-oxidation and combustion of polyethylene and polypropylene were studied and the products of these thermal degradation processes were identified by means of gas chromatography and gas chromatography-mass spectrometry. The individual products of thermal degradation were evaluated for their toxicity and a conclusion on presumed toxic effect of the combustion products of the polymers studied has been drawn.     

Volatile Stimuli Related to Feeding Activity of Nonprey Caterpillars, Spodoptera exigua, Affect Olfactory Response of the Predatory Mite Phytoseiulus persimilis

The effect of volatiles related to feeding activity of nonprey caterpillars, Spodoptera exigua, on the olfactory response of the predatory mites Phytoseiulus persimilis was examined in a Y-tube olfactometer. At a low caterpillar density (20 caterpillars on 10 Lima bean leaves), the predators were significantly more attracted to volatiles from infested leaves on which the caterpillars and their products were present or from infested leaves from which the caterpillars and their products had been removed when compared to volatiles from uninfested leaves. The predators, however, significantly avoided odors from 20 caterpillars and their products (mainly feces) removed from bean leaves. In contrast, at a higher caterpillar density (100 caterpillars on 10 Lima bean leaves), the predators avoided volatiles from caterpillar-infested bean leaves. Volatiles from infested leaves from which the caterpillars and their products had been removed were not preferred over volatiles from uninfested leaves. Volatiles from feces collected from 100 caterpillars were strongly avoided by the predators, while the behavior of the predatory mites was not affected by volatiles from 100 caterpillars removed from a plant. The data show that carnivorous arthropods may avoid nonprofitable herbivores. This avoidance seems to result from an interference of volatiles from herbivore products with the attraction to herbivore-induced plant volatiles.     

民国景德镇瓷器销售浅析

近代中外通商后,大量输入的洋瓷不断侵占国内瓷器市场。国外瓷器采用机器进行批量化生产,其生产成本远低于国内的手工制瓷,曾经一度使得景德镇瓷器的市场竞争力难以与其匹敌。但是,当时洋瓷的输入主要以日用瓷为主,而在艺术瓷方面,国内的仿古瓷还能占有一定的市场。尤其是民国景德镇对制瓷业的一系列改革带来了瓷器市场的新面貌,因此,从瓷器的销售来看对内对外都比清末有所上升。     

有机硅织物柔软整理剂的特点及发展方向

本文详细介绍了有机硅织物柔软整理剂的三大类产品，及其性能特点和发展方向。