The characteristics of dustless compouded lead salt stabilizer are good, and without dust poison. 无尘复合铅盐稳定剂性能优良,无粉尘毒害。
Using a new type of rare earth stabilizer formula to break the traditional lead salt formulations of conventional, low-lead non-toxic products. 采用新型的稀土稳定剂配方,打破了传统铅盐配方的常规,使产品低铅无毒。
Methods: Erucic acid from rape oil was extracted with cooling crystallization, and compared with lead salt method. 方法:采用冷结晶法提取芥酸,并与铅盐法提取芥酸作了比较。
It studied the influencing effects of lead salt thermal stabilizers on the dehydrochlorination-thermal degradation of low-halogens flame-retardant poly ( vinyl chloride)/ powder nitrile-butadiene rubber ( PVC)/ PNBR thermoplastic elastomer by means of Congo red method. 采用刚果红法研究了铅盐热稳定剂对低卤阻燃聚氯乙烯/粉末丁腈橡胶热塑性弹性体脱氯化氢热降解性的影响。
The most favorable action of lead salt in cyanide leaching is to remove S 2-ions of solution, so that the cyanide leaching can be made smoothly. 铅盐在氰化中的最有利作用是去除溶液中的S2-离子,使金氰化浸出顺利进行。
In comparison with single energetic lead salt or copper salt, the mixtures of lead and copper salts of hydroxypyridines have higher catalytic efficiency when the total content of catalyst added is constant. 将含能复合催化剂与单一含能催化剂的催化作用进行比较得出,当催化剂加入量一定时,羟基吡啶铅盐、铜盐复合使用比单一的铅盐或铜盐有更好的催化效果。
Study on lead salt on chemical modification of MnO 2 铅盐对MnO2的化学改性研究
They have found wide applications and will take the place of traditional heat stabilizers of lead salt, metal soaps and organic tin. 可代替传统的铅盐、金属皂类和有机锡类等热稳定剂,在PVC中有广阔的应用发展前景。
The whole flavones obtained from leaves of hawthorn by the methods of boiling water, alcohol extraction, dilute alcohol percolation, lead salt sedimentation and lime cream sedimentation were extracted. 采用水煮醇提法、稀醇渗漉法、铅盐沉淀法和石灰水沉淀法所提得山楂叶总黄酮,顺次以石油醚、乙醚、乙酸乙酯和正丁醇进行萃取。
Inorganic acid is substituted with cyanuric acid to synthesize organic lead salt. Auxiliary heat stabilizer and multi-function assistants with synergistic effect are selected. Specially for the processing of PVC plastics, XDW high-efficiency multifunction organic lead-salt compound stabilizer is prepared by reasonable formula and special process. 以氰尿酸替代无机酸合成有机铅盐,选择具有协同作用的辅助热稳定剂和多种功能性助剂,通过合理配方和特殊工艺制成PVC塑料加工专用XDW高效多功能有机铅盐复合稳定剂。
When the hydrotalcite was used together with lead salt or organotin, a synergistic effect on the thermal stability was observed. 将其与传统的铅盐、有机锡稳定剂复配,均具有良好的协同效应,可以实现对PVC糊热稳定性能的控制。
Investigation of Tribological Behavior and Action Mechanism of Organic Lead Salt as Lubricating Oil Additives 几种含铅有机化合物作为润滑油添加剂的摩擦学特性及作用机理研究
To introduce the determination of Sn coat on Sn plated steel strip using EDTA titration with lead salt back dropping. 介绍用铅盐反滴EDTA滴定法测定镀锡钢带的镀锡量。
The catalytic activity of energetic lead B is higher than that of aromatic acid lead salt C. 含能铅盐B燃烧催化剂活性比芳香酸铅盐C要高,故使用量少,对提高配方能量有益。
The combined antimony sulphide and oxide ore at an antimony mine contains 2.96% Sb, the ratio of oxidation being 46.18%. Stibnite flotation with xanthate after activation of lead salt is an effective method. 某大型锑矿的硫化锑氧化锑混合矿石含锑2.96%,氧化率46.18%。
Dustless Compounded Lead Salt Stabilizer Progress and research in lead-free composite solder 无尘复合铅盐稳定剂无铅复合钎料研究及发展
Its sodium and lead salt decomposed at 240 ° and 210 ° respectively with violence. Therefore; 此化合物在270°迅速分解,其钠盐和铅盐则分别在240°和210°猛烈分解。
Study on the new technology of galena directly transferring to lead salt 方铅矿直接转化为铅盐新工艺的研究
Dustless Compounded Lead Salt Stabilizer 无尘复合铅盐稳定剂
The application of lead salt in the cyanide leaching operation can produce microcell in the surface of gold grain. 氰化作业中应用铅盐可在金粒表面形成微电池,对于纯金颗粒这原电池可促进金的溶解。
Static and dynamic testings have confirmed that thermal stabilization effect of a modified low lead stabilizer is superior to traditional lead salt stabilizers. The results also reveal that the new stabilizer offers good workability, with dust-free environment created in PVC processing workshops. 本文以多种静态和动态热稳定试验证明:TS-D对PVC的热稳定效果超过传统的铅盐类稳定剂,并且具有良好的加工性,可达到低尘操作的良好环境。
Effect of some inorganic lead salt and aluminium oxide on burning rate pressure exponent and temperature sensitive coefficient of polyurethane composite solid propellant have been investigated. 研究了某些无机铅盐和氧化铝对燃速压力指数及温度敏感系数的影响。
By means of uniform design experimentation, the preferable combination among the contents of lead salt, copper salt and carbon black was obtained for the combustion performance of solid propellant. 通过均匀设计试验结果,获得了使固体推进剂燃烧性能较佳的催化剂铅盐、铜盐和炭黑组合。
The results showed that, CPVC was easy to dehydrochlorinate during processing, both lead salt stabilizers and organotin stabilizers as common PVC stabilizers were suitable for CPVC system, and the stabilizing effect of lead salt stabilizers was better than that of organotin stabilizers. 结果表明,CPVC在加工过程中易发生脱HCl反应,PVC常用的铅盐稳定剂、有机锡类稳定剂均适于CPVC体系,且铅盐稳定剂的稳定效果要优于有机锡类稳定剂。
To study technologies of separating flavonoids from infructescence of Platycarya Strobilacea Sieb. et Zucc by solvent precipitation and deposition method with lead salt. The results showed that the latter had the better efficiency. 分别采用溶剂沉淀法、铅盐沉淀法对化香树果序中黄酮类化合物提取分离工艺进行了对比研究,结果表明,铅盐沉淀法较溶剂沉淀法的提取效果好。
Traditional thermal stabilizers mainly include lead salt, metal soap and organotin stabilizers, which have strong stabilization efficiency, but these stabilizers have high toxicity and cost. Hence, they are gradually replaced by non-toxicity rare earth stabilizer. 传统的热稳定剂主要包括铅盐、金属皂及有机锡稳定剂,虽然具有较高的热稳定效率,但毒性较大成本较高,逐渐被新型无毒稀土热稳定剂所取代。