8月份30城市乘用车轮胎热销型号市场价格

注：按品牌中文首字母排序;30城市为：北京、上海、广州、深圳、杭州、成都、沈阳、西安、武汉、青岛、哈尔滨、合肥、呼和浩特、兰州、连云港、洛阳、南昌、南宁、攀枝花、秦皇岛、曲靖、厦门、太原、泰安、重庆、乌海、乌鲁木齐、泰州、大庆、运城     

市场动态

1994年化工排产会上60种化工产品市场情况畅销:15种,占25％。有尿素、合成复合肥、钾肥、氰化钠、辛醇、苯胺、甲苯、二甲苯、精甲醇、聚氯乙烯、苯酐、四氯化碳、邻甲苯胺、黄磷。平销:32种,占53.3％。有硫铁矿、磷矿、纯碱、烧碱、农药、油漆、染料、轮胎、硼砂、硼酸、氰化钾、电石、氧化锌、钛白粉、氯磺酸、纯苯、冰醋酸、苯酚、丙酮、粗苯、硝基苯、丁醇、硫酸二甲酯、环己酮、己内酰胺、炭黑、防老剂(RD、4010、4010NA、H)、促进剂(D、TETD、NA—22)、邻苯二甲酸二丁酯、邻苯二甲酸二辛酯、农药乳化剂、工程塑料。滞销:13     

4月份27城市乘用车轮胎热销型号市场价格

按品牌中文首字母排序;27城市为：北京、上海、广州、深圳、杭州、成都、沈阳、西安、武汉、青岛、哈尔滨、合肥、呼和浩特、兰州、连云港、洛阳、南昌、南宁、攀枝花、秦皇岛、曲靖、厦门、太原、泰安、重庆、乌海、乌鲁木齐     

湖南矿必兴科技有限公司

<正>矿兴磨矿业兴旺矿兴磨必不可少新型节能、环保高科技粉磨机矿兴磨应用范围矿兴磨广泛应用于建材、冶金、化工、矿山、能源、电力、耐火材料等行业中莫氏硬度8级以下,成品细度不高于-400目的各种物料的粉磨。如水泥(生、熟料)、石灰石、石灰、双飞粉、石膏、玻璃、砂岩、页岩、煤、焦碳、煤矸石、蛇纹石、矿渣、高炉渣、滑石、方解石、白云石、大理石、莹石、麦饭石、铁合金(硅铁、锰铁、铬铁等)、高岭土、凹凸棒土、钡盐、氧化铁红、明矾、钾盐、重晶石、铁矿、、铜矿、锰矿、镁矿、金属锰、硫磺、长石、石英、电石、烧结矿、铝钒土、磷矿石、钙镁磷肥、磷铵、尿素、偏硅酸钠、磷石膏、硫石膏、球团散矿等。     

第七届中国广州国际泵阀门管道与流体技术展览会

展出时间2013年8月21～23日展出地点中国进出口商品交易会展览馆展出内容水泵、化工泵、气动隔膜泵、计量泵、螺杆泵、离心泵、流程泵、油泵、污泵、排污泵、泥浆泵、渣浆泵、井泵、真空泵、磁力泵、压力泵、叶片式泵、容积式泵等;球阀、蝶阀、闸阀、柱塞阀、电磁阀、真空阀、电站阀、温控阀、疏水阀、排污阀、止回阀、截止阀、排气阀、密封阀等;节流阀、旋塞阀、隔膜阀、调压阀、     

资讯

中国陶瓷设计艺术大师名单（按姓氏笔画排序） 方文贤、王一君、王怀治、王采、王爱红、王绪远、冯林华、冯绍华、叶建新、关涛、刘少平、刘少倩、刘志钧、刘畅、刘鹏润、孙建兴、朱辉球、许国胜、邬书远、何炳钦、吴少雄、张肃、张金伟、李戈程、李廷怀、李竹玲、李伯书、李林、李新一、杨希文、杨英才、杨晓锋、汪洋、陈华、陈新华、周志远、周晓冰、岳振、易武、     

第十四届国际干燥学术会议（IDS 2004）简介

会议规模：共有48个国家和地区参加，有波兰、美国、巴西、法国、澳大利亚、加拿大、古巴、捷克、丹麦、芬兰、德国、希腊、匈牙利、印度、以色列、意大利、日本、挪威、罗马尼亚、俄罗斯、西班牙、瑞典、泰国、北爱尔兰、西印度群岛、南斯拉夫、乌克兰、白俄罗斯、智利、突尼斯、摩洛哥、苏丹等。     

上海林帕实业有限公司

<正>本公司专业分销国际国内多家公司香料产品,原产地:西班牙、印度、印尼、摩洛哥、马达加斯加、伊朗、埃及、巴西、德国、英国、墨西哥、阿根廷、法国、美国、俄罗斯、日本等天然类:甜橙油、柠檬油、丁香油、桂皮油、白柠檬油、桂叶油、薰衣草油、茉莉花净油、玫瑰净油、桦焦油、香荚兰豆、黑香豆、山苍子油、姜油(冷,热)、香根油、藿香油、薄荷素油、椒样薄荷油、茴油、桉叶油、留兰香油、香茅油、松油系列、柏木油系列、芹菜籽油、芫荽籽油、依兰油、卡南加油、红桔油、浸膏系列等     

1994年60种主要化工商品市场情况

从1994年全国化工排产会获悉:1994年60种主要化工商品的市场情况如下:畅销15种,占25%。有尿素、合成复合肥、钾肥、氰化钠、辛醇、苯胺、甲苯、二甲苯、精甲醇、聚氯乙烯、苯酐、四氯化碳、邻甲苯胺、苯酐、黄磷。平销32种,占53.3%。有硫铁矿、磷矿、纯碱、烧碱、农药、油漆、染料、轮胎、硼砂、硼酸、氰化钾、电石、氧化锌、钛白粉、氯磺酸、纯苯、冰醋酸、苯酚、丙酮、粗     

殷国光陶瓷艺术迎春展在南昌举行

2011年12月29日上午,"学书画"殷国光陶瓷艺术作品迎春展在省政协隆重开幕。省领导傅克诚、刘上洋、朱张才、陈清华、李华栋、汤建人、郑小燕、胡幼桃、肖光明出席。出席开幕式的老同志有:朱治宏、彭宏松、卢秀珍、马世昌、蒋如铭、孙用和、全文甫、万学文、张逢雨、华桐、钱梓弘、胡东太、王林森、刘运来、金异、黄懋衡、梅亦龙、罗明、厉志成、叶学龄、黄立     

微波消解-ICP-OES法测定黑芝麻中的18种矿质元素

采用HNO3/H2O2湿法微波消解制样,利用全谱直读电感耦合等离子原子发射光谱法(ICP-OES),全面详细地分析测定了黑芝麻中的矿质元素,共检出Ca、P、S、Mg、K、Al、Si、Fe、Na、Zn、Se、Sr、Cu、Mn、Ba、B、Ti、Cr等18种矿质元素,RSD值在1.21%～10.1%,其中13种元素在5%以内。黑芝麻中所含人体常量元素Ca、P、S、Mg、K、Na等的质量分数分别为1.79%,1.08%,0.59%,0.43%,0.41%和0.009 1%;微量元素Fe、Zn、Se、Cu、Mn、B、Cr、Sr、Si、Al等的含量分别为18.6,4.55,3.87,1.74,1.62,0.91,3.21,78.8,125.8 mg/100 g,未检出Pb、Hg、Cd、As以及Ni、Co、Mo等元素。     

Phase-mineral and chemical composition of coal fly ashes as a basis for their multicomponent utilization. 4. Characterization of heavy concentrates and improved fly ash residues

The phase-mineral and chemical composition of heavy concentrates (HCc) and improved fly ash residues (IFAs) recovered from five fly ashes (FAs) produced in four large Spanish thermo-electric power stations was characterized. The HCs were separated by sink-float separation in bromoform, while the IFAs are residues after the isolation of ceramic cenosphere, salt, magnetic, char and heavy concentrates. The HCs recovered are in the range 0.02–0.28% and their phase-mineral composition (in decreasing order of significance) commonly includes aluminosilicate glass, hematite, magnetite, larnite, quartz, periclase, mullite, corundum, lime, char, melilite, rutile, plagioclase, wollastonite, ferrian spinel, and anhydrite. Numerous accessory minerals of Ba, Ce, Cl, Cr, Cu, F, Fe, La, Mn, P, Pb, Th, Ti, Y, and Zr, are also typical components of HCs. These fractions are enriched in As, Ca, Cr, Cu, Gd, Mg, Mn, Mo, Fe, Ni, Pb, S, Se, Ti, V, Zn, and Zr in comparison with the FAs. The IFAs isolated are in the range 71.5–97.1% and their phase-mineral composition (in decresing order of significance) normally includes aluminosilicate glass, mullite, quartz, char, kaolinite, plagioclase, cristobalite, wollastonite, hematite, anhydrite, K-feldspar, melilite, and corundum. The contents of most elements in IFAs are similar to FAs as Ag, Ba, Cl, Cs, Ge, Mo, S, Sb, and Sc are significantly depleted in these residues. The IFAs have an improved composition in comparison with the FAs because they are: more homogeneous and finer-grained products; abundant in pozzolan and inert constituents; and depleted in harmful components. Some genetic features, properties, possible environmental concern, and potential utilization directions related to the HCs and IFAs are described. A basis for the advanced, multicomponent, wasteless, and environmentally safety utilization of various FAs is also discussed.     

应用ICP-MS同时测定矿泉水中22种微量金属

研究结果表明应用ICP-MS可以同时测定饮用天然矿泉水中的Li、Be、B、Al、Ti、V、Cr、Mn、Co、Ni、Cu、Zn、Ge、As、Se、Sr、Mo、Ag、Cd、Sb、Ba、Pb、等微量金属元素.ICP-MS法具有快速、准确、处理简单、干扰少等优点.     

一种具有混合侧链的苯并菲类盘状液晶材料的合成及其液晶性能的表征

本研究采用邻苯二酚、溴代正戊烷和乙酰氯为原料合成了以苯并菲为基元的盘状液晶化合物2,6,10-三乙酯基-3,7,11-三戊氧基苯并菲,化合物的结构采用核磁手段1HNMR进行鉴定。采用偏光显微镜POM和DSC手段对该种化合物的相行为进行了研究,并且与合成过程中的中间体2,3,6,7,10,11-六戊氧基苯并菲的相行为进行了比较。     

Ecological Risk Assessment of Polycyclic Aromatic Hydrocarbons in Surface Sediments from the Upper Reach of Huaihe River

Based on the available toxicity data and the concentrations of polycyclic aromatic hydrocarbons (PAHs) in 16 surface sediments from upper reach of Huaihe River, overlapping areas of probability density curves and margin of safety (MOS₁₀) were used to estimate the ecological risk of eight PAHs to aquatic organisms. The results indicated that the overlapping areas of Pyr, Nap, Fla, Ant, Phe, Ace, BaP, and Flu were 0.38, 0.29, 0.16, 0.11, 0.07, 0.03, 0.03, and 0.01, respectively. The risk of Pyr was the highest while that of Flu was the lowest. The overlapping area of ΣPAH₈ was 0.72, higher than that of any individual PAHs due to their joint effect. The calculated MOS₁₀ for Nap, Ace, Flu, Phe, Ant, Fla, Pyr, and BaP were 6.86, 5.42, 19.0, 2.72, 0.93, 0.75, 0.03, and 63.0, respectively. The probabilities of Nap, Ace, Flu, Phe, and BaP surpassing the 10th percentile value of the toxicity data were 0.07%, 0.30%, 0.05%, 1.97%, and 0.01%, respectively, suggesting minimal risk to aquatic organisms. However, the probabilities of Ant, Fla, and Pyr exceeding this value were 11.3%, 12.9%, and 64.8%, indicating potential risks. Among the individual PAHs, the ecological risk from Pyr was the highest, followed by Fla, Ant, Phe, Ace, Nap, Flu, and BaP. Additionally, the combined ecological risk of ΣPAH₈ in the upper reach of Huaihe River was significantly higher than that of any individual PAH alone, which the probabilities of ∑PAH₈ in excess of the 10th percentile of the toxicity data were 99.4%.     

合成环己酮乙二醇缩酮的催化剂研究进展

评述了近年来国内采用甲烷磺酸盐、对甲苯磺酸、氨基磺酸、强酸性阳离子交换树脂、磺化聚氯乙烯、六水三氯化铁、二水氯化亚锡、五水四氯化锡、四水氯化锰、硫酸铜、水合硫酸铁、十二水合硫酸铁铵、硫酸钛、四水硫酸锆、氯化锆、四水硫酸高铈、水合硝酸镧、活性炭固载硫酸镧、铌酸、树脂固载Lewis酸、壳聚糖硫酸盐、一水硫酸氢钠、碘、磷酸二氢钠、固体超强酸、杂多酸、分子筛和维生素C等固体酸催化合成环己酮乙二醇缩酮的实验结果。研究结果表明,固体酸能够代替硫酸作为合成环己酮乙二醇缩酮反应的催化剂。     

氯碱下游产品建设投资分析(续2)

介绍了20种氯碱下游产品--氯甲苯、氯乙酸、环氧氯丙烷、氯化苄、环氧丙烷、聚偏氯乙烯树脂、氯化聚氯乙烯树脂、氯化聚乙烯、甲基氯硅烷、三氯氢硅、氯化法钛白粉、三氯化磷、4,4'-二苯基甲烷二异氰酸酯、1,4-丁二醇、苯胺、环己酮、气相法白炭黑、甲基异丁基酮、对氨基苯酚、水合肼的市场前景、技术来源与建设投资.     

METAL EXTRACTION FROM NITRIC ACID SOLUTIONS BY (DIPHENYL-PHOSPHINYLMETHYL) PHENYLPHOSPHINIC ACID

ABSTRACT

The extraction of microquantities of Ca, Sr, Ba, Sc, Mn, Co, Cu, Zn, Ga, Cd, In, Pb, Bi, Zr, Hf, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Th, and U from HNO₃ solutions by (diphenylphosphinylmethyl)phenylphosphinic acid in organic diluents has been studied.

The effect of HNO₃ concentration in the aqueous phase and that of the extractant in the organic phase on the metal extraction are considered. (Diphenylphosphinylmethyl)phenylphosphinic acid possesses an extraordinary affinity for actinides and rare-earth elements. The extractive efficiency and selectivity of this compound toward rare-earth metal ions are compared with those of some multifunctional acidic and neutral organophosphorus extractants.     

全谱直读电感耦合等离子体原子发射光谱测定苦荞麦矿物元素

采用HNO3/H2O2湿法微波消解制样,采用全谱直读电感耦合等离子体原子发射光谱法（ICP-OES）,分析测定了苦荞麦中的矿物元素,共检出P、S、K、Mg、Ca、Si、Al、Fe、Na、Zn、Mn、B、Cu、Se、Ti、Cr、Ba、Sr等18种矿物元素。分析结果的RSD值在0.45%～9.09%之间,其中15种元素在5%以内。苦荞麦中所含P、S、K、Mg、Ca、Na等常量元素的质量分数分别为0.21%、0.21%、0.17%、0.098%、0.019%、0.0017%;微量元素Fe、Zn、Cu、Se、Cr、Si、Mn、B、Ti、Ba、Sr、Al等的含量（mg.kg-1）分别为37.4、16.5、3.67、1.38、0.44、121.6、6.90、4.88、0.63、0.22、0.12、49.9。     

Petrography and geochemistry of the Middle Devonian coal from Luquan, Yunnan Province, China

Coals from Luquan, Yunnan Province, China, have high contents of cutinite and microsporinite, with an average of 55 and 33.5 vol%, respectively, (on a mineral-free basis). The coals are classified as cutinitic liptobiolith, sporinite-rich durain, cutinite-rich durain, and sporinitic liptobiolith. These four liptinite-rich coals are often interlayered within the coal bed section and vary transversely within the coal bed. The vitrinite content varies from as low as 1.6-20.5% (mineral-free basis), and it is dominated by collodetrinite, collotelinite, and corpogelinite. The maceral composition may be attributed to the type of the peat-forming plant communities. Moreover, the Luquan coals are characterized by high contents of volatile matter, hydrogen, and oxygen, and the high values of the atomic hydrogen to carbon ratio as a result of the maceral composition. As compared with the common Chinese coals and the upper continental crust, the Luquan coals are enriched in Li, B, Cu, Ga, Se, Rb, Mo, Ba, Pb, Bi, and U, with averages of 99.9, 250, 111, 24.4, 4.55, 130, 58.8, 1276, 162, 3.85, and 34.1 μg/g, respectively. The SEM-EDX results show that V, Cr, Ga, and Rb occur mainly in clay minerals, and Cu and Pb are associated with clay minerals and pyrite, and Mo and U are mainly in clay minerals and organic matter. Barite and clay minerals are the main carrier of barium. The high B and U contents are probably resulted from deep seawater influence during coal formation.