溶剂浮选吸光光度法测定微量铂

采用以Ｐｔ－ＳｎＣｌ＿２－ＣＰＢ体系溶剂浮选吸光光度法测定微量铂的方法。用乙酸乙酯做有机相溶剂，铂的检测下限为０．１７μｇ／２００ｍｌ，其回收率接近１００％。对１０μｇ／２００ｍｌ的铂溶液，５次测定的相对标准偏差为０．５４％。在试验选定的条件下，常见贱金属离子对铂的测定无干扰；在试验范围内，５００倍于铂质量的Ａｇ￣＋、Ａｕ￣（３＋）、Ａｓ（Ⅲ），０．５倍的Ｐｄ（Ⅱ）及常见阴离子Ｂｒ￣－等大量存在时，均不干扰铂的测定。可用于多种含铂废料中微量铂的测定。     

ICP—AES法测定醋酸塔流动液中的钼和镍

采用“低温熔化－中温挥发－硝酸高氯酸消化溶解”的方式进行样品处理,用电感耦合等离子体发射光谱（ＩＣＰ－ＡＥＳ）法同时测定了醋酸塔流动液中的钼和镍。该方法操作简便,快速,干扰少,测定精密度为０．６％￣０．８％,方法回收率在９９％￣１０２％之间。     

丙烯酸与2—丙和烯酰胺—2—甲基丙磺酸共聚合成高吸水性树脂的 …

以丙烯酸（Ａｃ）和２－丙烯酰胺－２－甲基丙磺酸（Ａｍｐｓ）为原料，过硫酸钾为引发剂，Ｎ，Ｎ－亚甲基双丙烯酰胺为交联剂（Ｂｉｓ），用水溶液法在实验室合成了一系列高吸水性树脂。考察了合成条件对树脂吸水率的影响，较佳的合成条件是，Ａｃ：Ａｍｐｓ（摩尔比）为９０￣９５：１０￣５，Ｂｉｓ用量为Ａｃ质量的０．０５％￣０．０９％，Ａｃ的中和度为７０％￣１００％，单体质量分率为３０％￣４０％。     

腈纶污水中SCN^—分析方法的改进

根据生产需要，采用分光光度法，直接取样，可快速测定腈纶污水中高含量ＳＣＮ＾－。测定范围在０￣１００ｍｇ／Ｌ，显色体积由原１０．０ｍＬ改为５０．０ｍＬ。显色条件的选择是通过正交试验法确定，对不同含量的水样进行了加标试验。通过试验证明，选择方法可靠，结果准确度高，回收率在９２％￣１０４％。     

原油 重油中钙 镁元素的原子吸收光谱测定

研究了原油、重油中的钙、镁的测定，试样经电炉炭化，高温炉灰化后，控制溶液酸度在ＰＨ＝１．０左右范围内，分别在４２２．７纳米，２８５．２纳米波长处对钙、镁进行原子吸收分光光度法测定。其相对标准偏差分别是１．５％和２．５％，回收率分别是Ｃａ：９６．０￣１０１．１％，Ｍｇ：９７．０％￣１０２．５％。     

丙烷均相氧化脱氢及其应用

丙烷在８００￣８４０Ｋ、Ｏ２／Ｃ３＾０比０．４４￣１．６５、停留时间６．０￣１３．５ｓ的条件下进行均相氧化脱氢。在丙烷转化率为４０％时，丙烯选择性为４２．５％，产率为１７．０％。用自丙烯生产丙烯醛的Ｍｏ－Ｃｏ－Ｒｅ－Ｂｉ－Ｏ催化剂，将上述反应产物在５９０￣６１５Ｋ、Ｏ２／Ｃ３＾０综合比０．６５￣１．１３、停留时间２．４￣４．２ｓ的条件下氧化，得到丙烯醛按丙烷衡算的选择性〉３３．５％，产率〉１３．５     

烷烃和烯烃芳构化催化剂

烷烃和烯烃芳构化催化剂ＪＰ９６０２９２５５－Ｂ２，Ｋｅｉｓｈｉｔ．ｓｕＲｙｕｂｕｎＳｈｉｎｙｏｔｏ；－１９９６．３．２７，Ｂ０ｌＪ２９／６２Ｃ０７Ｃ５／４１１５／０２／／Ｃ０７Ｂ６１／００Ｃ１０Ｇ３５／０９５新催化剂制备是用含卤化合物处理Ｐｔ／Ｌ－沸...     

复合添加B、Nb、Mo元素提高管线用钢综合性能的研究

新日本制铁公司钢铁研究所对管线用钢进行了深入研究提高了综合性能，是在现用管线用钢基础上进行的。管线用钢在形变热处理（ＴＭＣＰ）时，添加微量Ｂ、Ｎｂ等很有效果，其理由是在轧制泠却时可抑制沿晶界有粗大硼碳化合物析出等。此次采用单独或复合添加Ｂ、Ｎｂ、Ｍｏ元素对其综合性能的影响。试验钢材成分（％）０．０１５Ｃ－０．２Ｓｉ－１．５３Ｍｎ－０．０２Ａｌ－０．０１５Ｔｉ－０．００２２Ｎ为基本钢，在这钢中单独或复合添加０．０００８％Ｂ、０．０４％Ｎｂ、０．３５％Ｍｏ。以此变化成公生产出１００ｋｇ钢锭，在１２０…     

上海石化院GS-06B苯乙烯催化剂通过技术鉴定

上海石油化工研究院开发的ＧＳ－０６Ｂ乙苯脱氢制苯乙烯催化剂日前通过了中石化集团公司的技术鉴定。由于该催化剂引入了新的活性元素,可提高催化剂稳定性,抑制副反应发生。ＧＳ－０６Ｂ催化剂在常压等温小试考评装置中考察并经过１０００ｈ稳定性试验表明,在乙苯液体空速１．０ｈ－１、水比２．０、反应温度６２０℃的反应条件下,转化率为７５％,选择性为９５％,且具有较好的操作灵活性。ＧＳ－０６Ｂ乙苯脱氢制苯乙烯催化剂在燕山石化公司化工一厂６０ｋｔ／ａ苯乙烯生产装置上累计工业运行了６１４ｄ,共生产苯乙烯１０９．５２７…     

GS-06B苯乙烯催化剂通过技术鉴定

ＧＳ－０６Ｂ苯乙烯催化剂通过技术鉴定上海石油化工研究院开发的ＧＳ－０６Ｂ乙苯脱氢制苯乙烯催化剂已通过中国石油化工集团公司技术鉴定。该催化剂引入了新的活性元素,可提高催化剂稳定性,抑制副反应发生。ＧＳ－０６Ｂ催化剂在常压等温小试考评装置上考察并经过１０００ｈ稳定性试验表明：在乙苯液体空速为１．０ｈ－１,水质量比为２．０,反应温度为６２０℃的反应条件下,转化率为７５％,选择性为９５％,且具有较好的操作灵活性。ＧＳ－０６Ｂ乙苯脱氢制苯乙烯催化剂在燕山石化公司化工一厂６０ｋｔ／ａ苯乙烯生产装置上已累计工…     

Utility of Bacterial Biomass as Antioxidant,Anticorrosive, and Antifriction Additives for Lubricating Oils

Abstract

Bacterial biomass was used as antioxidant and anticorrosive additives for lubricating oils using three concentrations 0.1, 0.5, and 1%, respectively, the additive and corrosive products were determined for 36 hr of heating at 150°C. The Pseudomonas chlororaphis suspended in lubricating oil was heated at 150°C to form Maillard reaction products (MRP). These bacterial biomasses were also used as antioxidant and anticorrosive additives for different petroleum lubricants.     

Multifunctional Additives Viscosity Index Improvers,Pour Point Depressants and Dispersants for Lube Oil

Abstract

In the present work, some polymeric additives based on styrene-maleic anhydride copolymer were prepared and evaluated as multifunction lube oil additives (viscosity index improvers, pour point depressants, and detergent-dispersant additives). The styrene-maleic anhydride copolymer reacted with different alcohols (dodecyl alcohol, hexadecyl alcohol, octadecyl alcohol, and docosanol) to prepare four different types of esters and aminated with different types of amines (dodecyl amine, hexadecyl amine, and octadecyl amine) to prepare another three co-polymeric additives. Structure of the prepared compounds was confirmed by I.R. spectroscopy. The molecular weights of the prepared copolymers were determined by using gel permeation chromatograph and the percentage of esterification and amination were determined by ¹HNMR. The efficiencies of the prepared compounds as viscosity index improvers, pour point depressants, and detergents-dispersants were investigated. It was found that the efficiency of the prepared compound as viscosity index improvers increases with increasing the concentration of additives in the solution and with increasing the molecular weight of prepared compounds, while the efficiency of the prepared compounds as pour point depressants increases with decreasing the concentration of the prepared polymers. On the other hand, the prepared compounds showed excellent dispersion power.     

CVD法制备碳纳米管中应用氟 氯 磷等添加物的热力学条件预测

利用俄罗斯科学院研制的软件计算分析了CVD法制备碳纳米管过程中在碳氢体系添加氟、氯、磷、氧等元素及在碳硫体系中加入氧、氟等元素对于化学传递反应的影响,结果表明,这些元素的加入有利于传递反应的进行。分析了不同压力下气相传递物质中的碳含量,压力降低使传递的温度区间缩小。     

Study the Influence of Some Polymeric Additives as Viscosity Index Improvers,Pour Point Depressants and Dispersants for Lube Oil

Abstract

In the present work, some polymeric additives were prepared as pour point depressants, viscosity index improvers and dispersant additives for lube oil, these additives prepared by copolymerization of maleic anhydride with different esters of acrylic acids and then amination. The molecular weights of the prepared copolymers were determined by gel permeation chromatograph (GPC). The efficiency of the prepared compounds as pour point depressants and viscosity index improvers was investigated. It was found that the efficiency of the prepared compounds as pour point depressants increases with decreasing the concentration of the prepared polymers, increasing the chain length of alkyl groups and increases with decreasing the molecular weight. The efficiency of the prepared compounds as viscosity index improvers increases by increasing the concentration of these additives and by increasing the molecular weight of polymer. It was found that the amination of polymer enhance the efficiency of the prepared additives as pour point, viscosity index, and dispersant for sludge.     

温拌沥青添加剂研制及其混合料性能研究

采用克拉玛依炼厂副产品自主研制了KSH—A、KSH—B、KSH—C温拌沥青添加剂。同时考查了添加剂对沥青胶结料粘度、还原性能的影响;确定了温拌沥青混合料的最佳拌和温度、拌和时间、养生时间、碾压温度等工艺条件;并通过温拌沥青混合料综合性能测试,验证了KSH—A、KSH—B、KSH—C温拌沥青添加剂具有良好的应用效果。     

钻井液添加剂的荧光特性评价

钻井液添加剂的荧光发射直接影响地质荧光录井。介绍了钻井液添加剂的荧光发射机理及荧光定量分析的影响因素，并利用2种方法对近40种常用钻井液添加剂进行了荧光评价，考察了温度对添加剂荧光特性的影响。评价结果表明，所有钻井液添加剂在原油荧光发射波长范围内都存在荧光发射，其中沥青类产品荧光强度最高；温度对添加剂荧光特性的影响因添加剂类型而异。认为钻井液添加剂对原油荧光的影响既取决于添加剂本身的荧光发射强度，又取决于添加剂与岩屑的相互作用程度，提出了“荧光干扰度”的概念，建议在模拟现场实际条件下对钻井液添加剂进行荧光评价。     

添加剂和润滑油中硫磷氯钙钡锌元素的测定

针对采用X射线荧光光谱仪测量添加剂和润滑油中S、P、Cl、Ca、Ba和Zn元素的方法,使用液体试样盒盛装试样的问题,建立了薄膜制样法,以成型滤纸片为标准物与试样的支撑材料,点滴法移取样品,制备样片,用透空照射法直接测定润滑油和添加剂中的系列元素,可以成功地测量含量大于0．01％的试样。重复性的相对标准偏差小于3％,是一种不需要预处理样品,可直接在仪器上测量的快速准确实用的方法。     

新型油井水泥触变剂的研究与应用

常规油井水泥触变剂常存在触变性不够强、影响施工安全、综合性能欠佳等问题。为此,通过将合成聚合物和超细无机材料以2∶3的比例复配,开发出一种新型油井水泥触变剂BCJ-200S,研究了其应用性能。结果表明,该触变剂可显著提高水泥浆触变性,且温度影响小,90℃加入1.5% BCJ-200S后水泥静浆静置10 min的胶凝强度从2.3 Pa增加到61.0 Pa,静置前后的φ₃₀₀读数分别为206和210,再静置10 min胶凝强度为61.3 Pa,其触变结构可逆性良好,对水泥浆稠化、失水、强度等性能没有产生不良影响;其还可改善水泥石的力学性能,增强水泥石抗破坏能力;另外,配伍性研究结果表明,该触变剂具有良好的现场适应性。其在大港油田官38-22油井进行了首次应用,该井采用12 m3触变水泥浆封堵Ng2出水井段,一次封堵成功,最高挤注压力达16 MPa,钻塞后对封堵层试压8 MPa合格,解决了该井出水难题。      

Shelf-life extension on fillets of Atlantic Salmon (Salmo salar) using natural additives,superchilling and modified atmosphere packaging

The effect of natural additives, superchilling, and modified atmosphere packaging (MAP) on the shelf-life of Atlantic Salmon (Salmo salar) fillets was investigated. The variables analyzed were: gas concentration (CO₂:N₂), gas-to-product volume (g/p) ratio and type of natural additive. Experiments were monitored by sensory, chemical, and microbiological analyses. Natural additives did not improve salmon shelf-life. The greatest extension of shelf life was reached by a combination of superchilling and MAP. The samples with the highest CO₂ concentration (90%) and g/p ratio of 2.5 showed the highest shelf-life: 22 days vs. 11 days (control sample). Microbial analysis determined the ultimate shelf-life.     

清洁压裂液的研究与应用

介绍了以粘弹性表面活性剂为主剂的清洁型水基压裂液特点,清洁型水基压裂液包括季铵盐类阳离子表面活性剂体系、甜菜碱型阳离子表面活性剂体系、非离子表面活性剂体系、阴离子和非离子及两性表面活性剂复合体系、疏水缔合物体系。简要介绍了各体系的主要配方、使用的主剂和辅助添加剂及各体系优缺点。清洁型水基压裂液在国内外油田现场应用均取得良好的施工效果,其用量约是聚合物压裂液用量的50%。