BMAT对盐酸酸洗中不锈钢-碳-钢电偶腐蚀的抑制作用

运用失重法及电偶电流的测量评定了ＢＭＡＴ对３１６Ｌ／碳钢组成的电偶对在５％（质量分数）ＨＣｌ中的缓蚀性能，结果表明，ＢＭＡＴ能很好地抑制此电偶对的腐蚀；极化曲线的测量表明：ＢＭＡＴ既能抑制发生在电偶对中碳钢阳极溶解反应Ｆｅ→Ｆｅ２＋＋２ｅ，又能抑制不锈钢阴极析氢反应２Ｈ＋＋２ｅ→Ｈ２。     

MNA-TBP从盐酸介质中萃取Ir(Ⅳ)

对ＭＮＡ－ＴＢＰ从盐酸介质中萃取Ｉｒ（Ⅳ）作了研究．结果表明：ＭＮＡ－ＴＢＰ对Ｉｒ（Ⅳ）萃取有协同效应．当ＭＮＡ和ＴＢＰ在正辛烷中的浓度各为０．４５ｍｏｌ／Ｌ，待萃液中ＨＣｌ总浓度为４ｍｏｌ／Ｌ，铱浓度为１７３．１３μｇ／ｍｌ，相比为１时，协萃系数Ｒ为２．３３，协萃合物的组成为（ＭＮＡＨ）＋．ＩｒＣｌ＄２－６．（ＨＴＢＰ）＋．     

二硫氰酸甲酯的水相合成研究

研究了以水为溶剂,在相转移剂四丁基氢氧化铵辅助下,用二氯甲烷和硫氰酸钠合成二硫氰酸甲酯（ＭＢＴ）。研究表明,以总物料体积的２．５％加入相转移剂,物料摩尔比ＣＨ２Ｃｌ２∶ＮａＳＣＮ＝１∶２．３,在９０℃下,反应３ｈ,ＭＢＴ的收率按ＣＨ２Ｃｌ２计可达到６８．１％。     

氧化型杀生剂对有机膦水处理剂稳定性影响的研究

在循环冷却水处理中常用的氧化型杀生剂Ｃｌ２和ＣｌＯ２在不同浓度时对常用的有机膦水处理剂ＨＥＤＰ，ＰＢＴＣＡ的稳定性有较大的影响，在同一浓度下，ＰＢＴＣＡ的抗氧化性大于ＨＥＤＰ，ＣｌＯ２在水中的滞留时间大于Ｃｌ２要保持有机膦药剂的稳定性，水中的余氯量必须控制在≤０．５ｍｇ／Ｌ。     

顺,反异构钼硫簇合物[（C2H5）4N]2[Mo2S4（SCH2CH2S）2]的合成,结构和性质...

用（ＮＨ４）２ＭｏＳ４，Ｃｏｃｌ２，ＮｉＣｌ２，ＨＳＣＨ２ＣＨ２ＳＨ和Ｅｔ４ＮＢｒ在ＣＨ３ＯＨＣＨ３ＯＮａ溶液中反应，得到了顺Ａ，反Ｂ异构体的原子族化合物「（Ｃ２Ｈ５）４Ｎ」２，ＰＭｏ２Ｓ４（ＳＣＨ２ＣＨ２Ｓ）２「的晶体。     

PVC接枝MMA反应规律的研究

本文研究了ＰＶＣ在碱性溶液中脱ＨＣｌ的变化规律以及用脱ＨＣｌ后的ＰＶＣ（简称ＤＰＶＣ）接枝ＭＭＡ的反应规律。对碱液浓度、反应时间对ＰＶＣ脱ＨＣｌ的影响以及ＭＭＡ／ＤＰＶＣ的配比、反应时间、ＢＰＯ用量、溶剂环己酮用量对接枝度的影响进行了探讨，结果表明，采用离子选择性电极研究ＰＶＣ在碱性溶液中脱ＨＣｌ的变化规律效果较好，碱液浓度是影响ＰＶＣ脱ＨＣｌ的主要因素；ＤＰＶＣ接枝ＭＭＡ的最佳条件是：反应温度８     

不锈钢盐酸酸洗缓蚀剂

通过失重法测试了不同浓度的苯并咪唑类化合物（ＢＭＡＴ）在５％ＨＣｌ中对３１６Ｌ．不锈钢的缓蚀率，探讨其吸附规律符合Ｆｒｕｍｋｉｎ吸附等温式．通过温度对腐蚀率的影响计算表观活化能与吸附热，推断缓蚀机理为化学吸附．极化曲线测试表明．缓蚀剂属阴极为主的阴阳极混合型．     

镧系金属化合物催化苯乙烯和双烯烃的共聚：苯乙烯和异戊二烯…

采用稀土催化体系Ｎｄ（Ｆ３ＣＯ２）３－ＢｒＣ５Ｈ１１－ＲｍＡｌＨ３－ｍ（Ｎｄ－Ｂｒ－Ａｌ），以甲苯为溶剂，在５０℃恒温水浴中进行苯乙烯和异戊二烯共聚合。结果表明，由Ａｌ（Ｏｃｔ）３或Ａｌ（ｉ－Ｂｕ）３组成的催化体系可制备以顺式－１，４结构为主的共聚物，在后者组成的催化体系中，当Ａｌ／Ｎｄ＝５（摩尔比，下同），Ｂｒ／Ｎｄ＝５时，聚合活性最高。经ＩＲ，ＮＭＲ检测表征了共聚物微观结构。同时，用π－烯丙基     

钼系高乙烯基聚丁二烯橡胶的合成

通过１００ｍＬ聚合瓶小试及５０Ｌ四釜连续聚合中试,考察了以ＭｏＣｌ３（ＯＲ）２－（ｉ－Ｂｕ）２Ａｌ（ｍ－ＯＰｈＭｅ）（简称Ｍｏ－Ａｌ）构成的Ｚｉｅｇｌｅｒ－Ｎａｔｔａ催化体系合成钼系高乙烯基聚丁二烯橡胶（ＨＶＢＲ）的试验情况。在５０Ｌ装置上连续生产出乙烯基含量为８０％的ＨＶＢＲ。研究了ＨＶＢＲ的生产工艺条件,在Ａｌ／Ｍｌ（摩尔,下同）为１５－３５,Ｍｏ／Ｂｄ（摩尔比,下同）为（６－８）＊１０＾－５     

T M E D A/ n - Bu Li 体系丁二烯- 苯乙烯溶液共聚的偶联反应(英文)

研究了 Ｔ Ｍ Ｅ Ｄ Ａ 与 Ｓｎ Ｃｌ４ 用量对丁苯共聚偶联反应的影响。结果表明, 取 Ｔ Ｍ Ｅ Ｄ Ａ／ Ｌｉ 为０ ．１ ,当 Ｓｎ Ｃｌ４／ Ｌｉ 为０ ．１３ 时, Ｈ Ｉ达到最大值１ ．７３ ;当 Ｓｎ Ｃｌ４／ Ｌｉ 为０ ．２５ 时, Ｃ Ｅ 达到最大值６８ ．２５ ％ 。取 Ｓｎ Ｃｌ４／ Ｌｉ 为０ ．１３ ,发现 Ｔ Ｍ Ｅ Ｄ Ａ 加入量对 Ｃ Ｅ 及 Ｈ Ｉ 无明显影响。     

铁微电极在新疆荒漠碱土壤液中的阳极腐蚀行为研究

利用电化学交流阻抗测试技术对新疆荒漠碱土壤液中铁微盘电极的阳极行为进行了研究，给出了相应的等效电路，对微电极在腐蚀电化学中的应用进行了分析     

白色导电锦纶的研制

通过对PA6纤维经过渗碘和络合处理 ,得到了体积比电阻达 1 5× 1 0 4Ω·cm的白色导电纤维 ,并确定了最佳工艺条件为 :渗碘时I2 KI=0 .5 ,碘溶液浓度 2 5 %～ 1 0 % ,渗碘时间 1 5～ 30s,浴温选择 70℃ ;络合采用饱和的CuCl HCl溶液 ,络合时间 40min ,络合温度 70～80℃。     

差示紫外分光光度法测定EG中Sb_2O_3含量

探讨了差示紫外分光光度法测定高浓度 ( 1%以上 )Sb2 O3 EG溶液中Sb2 O3 含量的可行性 ,结果表明 ,只要选择合适的参比溶液浓度及测量波长 ,并使试样的吸光度控制在 0 2～ 0 7,则测定误差就可控制在± 0 0 1%以内 ,可以满足聚酯生产分析要求     

分散支撑液膜中四价铈的传输分离

研究了以聚偏氟乙烯膜(PVDF)为液膜支撑体,煤油为膜溶剂,2-乙基己基磷酸-单-2-乙基己基酯(PC-88A)为流动载体,煤油和PC-88A的混合溶液作为膜溶液,膜溶液和HCl溶液组成分散相的分散支撑液膜(DSLM)中Ce(IV)的传输行为;考察了料液相酸度、Ce(IV)起始浓度、HCl浓度、膜溶液与HCl溶液体积比、解析剂及载体浓度对Ce(IV)传输的影响,得出其最优传输分离条件为：HCl浓度4.0 mol/L,膜溶液与HCl溶液体积比2:1,载体浓度0.16 mol/L,料液相中HCl浓度0.1 mol/L. 在最优条件下,料液相中Ce(IV)的初始浓度为0.7′10-4 mol/L时,迁移75 min,其迁移率达到96.3%. 提出了Ce(IV)在DSLM中的传质动力学方程,得出Ce(IV)在膜中的扩散系数为6.69′10-8 m2/s,料液-膜边界层厚度为19.3 mm. 对模拟样品Ce(IV)的分离结果表明,在一定条件下,125 min内模拟煤粉灰中Ce(IV)迁移率达到92.8%;105 min内模拟冶金熔渣中其迁移率可达92.6%;215 min内Ce(IV)与Eu(III)的混合液中Ce(IV)迁移率达到83%,其他元素迁移率极低.     

Determination of acid impurity content in spinning solution and in freshly spun fibre made from aromatic polyamides

Conclusions The spinning solution from the manufacture of fibre from an aromatic polyamide contains dissolved HCl in the free form and HCl bonded to functional groups of the polymer; the freshly spun fibre contains only bonded HCl.A procedure has been developed for determining the content of free and bound HCl in spinning solution and freshly spun fibre; it is based on titrating a sample of a specimen in a medium of dimethylacetamide containing 3% LiCl with an approximately 0.04-molar alcoholic KOH solution.Translated from Khimicheskie Volokna, No. 2, pp. 58–60, March–April, 1990.     

聚碳酸酯生产中三乙回收胺的研究

采用盐酸洗涤聚碳酸酯的二氯甲烷溶液,有机相中的三乙胺转化为盐酸盐溶于水中。盐酸洗液套用后,蒙脱土吸附处理套用后盐酸洗液中富集的三乙胺盐酸盐,再对该蒙脱土进行碱化、精馏回收三乙胺。该工艺增加了盐酸洗液的套用次数,减少了酸洗液总废水量。三乙胺回收率达70%。     

The analysis of hydrogen chloride as a combustion product using a gas filter correlation analyzer

Hydrogen chloride (HCl) is a very difficult gas to measure, and its measurement is usually done by a batch procedure. The utility of a gas filter correlation analyzer (GFCA) for analysis of HCl as a combustion product in the cone calorimeter has been evaluated. The GFCA analyzer is a continuous on-line method. Optimum components and operating conditions for the sample transfer line from the cone calorimeter to the GFCA were determined in experiments where constant boiling hydrochloric acid (HCl) was used. The sample transfer line should be designed to prevent water vapor condensation in the transfer line or in the measurement cell of the GFCA. HCl will condense into any condensed water resulting in analytical losses. To avoid this, the sample transfer line should be constructed out of PTFE and include a dryer. Also, any segment of the sample transfer line ahead of the dryer should be heat wrapped and maintained above the boiling point of water. The GFCA analyzer was also evaluated in the cone calorimeter with PVC combustion products. For combustion products, 20 to 30% losses of HCl occurred in the sample transfer line. These were a constant amount of 34 ppm of HCl in the constant boiling acid experiments and 53 ppm in the combustion experiments. A mathematical model relating the response of the GFCA to the concentration of HCl in the duct of the cone calorimeter was developed. Important factors are the delay time in the sample transfer line, the losses in the sample transfer line, and mixing in the detection cell, By integrating the GFCA concentration-time profile and correcting for the losses in the sample transfer line the total yield of HCl can be accurately measured. The GFCA analyzer is an on-line method, gives fast and accurate results, and is highly useful for the measurement of HCl as a combustion product.     

弹性支承正交异性层合板位移计算的刚度调整法

为计算弹性支承正交异性层合板的位移，提出了刚度调整法。并引用了柔度法。文中含有２种方法得到的计算结果。实验验证了计算结果的正确性。刚度调整法具有简便和适用性广的优点。     

Cationic gemini surfactant as corrosion inhibitor for mild steel in 1 M HCl and synergistic effect of organic salt (sodium tosylate)

Synergistic result of cationic gemini surfactant (GS) 1,2-bis(N-hexadecyl-N,N-dimethylammonium) ethane dibromide (16-2-16) and organic salt (Sodium tosylate; NaTos) on mild steel corrosion in 1?M HCl solution at various temperatures (30, 40, 50 and 60?°C) has been examined using gravimetric, electrochemical and surface morphology measurement. Investigational result shows that the inhibition efficiency (η) of 16-2-16 GS enhanced in the existence of a set quantity of NaTos. The synergism parameter (S_θ) values are larger than unity, representing large inhibition efficiency, generated via the accumulation of NaTos to 16-2-16 GS is owing to adsorption supportive. The electrochemical results revealed that the 16-2-16 GS in the absence and presence of NaTos act as mixed-type inhibitors. The inhibitor adsorption on the mild steel surface in 1?M HCl solution obeys Langmuir adsorption isotherm. Surface morphology was studied using scanning electron microscopy (SEM).     

PC/ABS 哑光合金的研究

选用牌号分别为KS-TD-00201、KS-TD-00202、BMAT和AX-8900的4种不同消光剂与聚碳酸酯（PC）、丙烯腈-丁二烯-苯乙烯共聚物（ABS）共混制备汽车内饰件用合金材料。对4种消光剂的消光效果及其对合金综合性能的影响进行了研究,同时,比较了各种消光剂的价格。结果表明,4种消光剂都有较好的消光效果。KS-TD-00201和KS-TD-00202对PC/ABS合金的力学性能基本无影响,BMAT会导致合金的冲击强度大幅下降,AX-8900则导致合金材料模量降低较多;同时KS-TD-00201和KS-TD-00202的价格较低,为性价比较好的消光剂。