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氯化氢催化氧化制氯气技术进展 总被引:2,自引:0,他引:2
综述了在氯化氢催化氧化制氯气技术开发过程中,催化剂研究和反应器开发的进展情况。分析认为,采用催化氧化法生产的氯气将成为工业用氯气来源的重要组成部分。 相似文献
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氯化氢催化氧化制氯气即Deacon过程,是一种实现工业副产氯化氢循环利用的可持续发展途径。本文介绍了氯化氢催化氧化催化剂、反应器及设备材质的研究进展,分析了氯化氢催化氧化的发展前景。 相似文献
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The kinetics of copolymerisation of vinyl chloride with allyl chloride in chlorobenzene and in dichloroethane solvent have been studied by a dilatometric method. The compositon of the copolymers was determined by reduction with tributyltin hydride followed by infrared examination. Molecular weights obtained by g.p.c. enable as estimate of the transfer constant for degradative transfer to allyl chloride to be made for both the chlorobenzene and dichloroethane solvent systems. The results show that allyl chloride retards vinyl chloride polymerisation by degradative transfer and that the resulting radicals combine with the growing polymer chains. The dependence of copolymer composition on the composition of the monomer feed reveals that one of the pair of reactivity ratios associated with this reaction in either solvent has a negative value. 相似文献
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H. L. Jindal 《Israel journal of chemistry》1973,11(5):719-722
The activities of CoCl2 in molten MgCl2?KCl at 475° have been determined by measuring the EMF of the galvanic cell. 相似文献
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工业氯化钾中氯化钾含量的测定 总被引:2,自引:0,他引:2
《化工设计通讯》2017,(6):134-135
市里面上销售的氯化钾的生产方法不尽相同,由于其生产工艺不同,所以执行标准也不同,主要有两种,GB/T7118—2008、GB/T6549—2011。二者的技术指标不同,分别以氯化钾、氧化钾的含量作为判断标准,二者的样品处理方法和检测方法也有一定的差异。主要对执行GB/T7118—2008的检测方法做了详细描述。 相似文献
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采用等体积浸渍法,分别以Zn(NO3)2,Ni(CH3COO)2,Zn(CH3COO)2,Ni(NO3)2和ZnCl2作为负载物制备了活性炭载体金属基催化剂,在自制的常压连续流动固定床反应器中,以氯化氢和甲醇为原料,在氨环境下模拟氯化铵与甲醇反应考察了不同催化剂在合成氯甲烷中的催化性能.结果表明,以活性炭为载体制备的氯化锌催化剂,在温度290~350℃,氯化氢和甲醇物质的量之比为1∶1和空速300 min-1的条件下,甲醇转化率、氯甲 烷选择性和收率较高,氯甲烷收率达到66%以上.催化剂性能稳定,且有较长的使用寿命. 相似文献
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Liquid phase acylation of ferrocene with adamantoyl and cinnamoyl chloride was studied over different structural types of zeolites. The effect of the zeolite structure and acidity, and the influence of the reaction conditions on the ferrocene conversion and selectivity was investigated. The highest ferrocene conversions were achieved over zeolite Beta with Si/Al ratio 12.5 (cinnamoyl chloride 63.5%, adamantoyl chloride 45.9%). It was observed that with decreasing concentration of active sites in zeolite Beta the ferrocene conversion decreases. In addition, it was found that there is an optimum molar ratio of ferrocene to acylating agent, the ferrocene conversion increased with increasing temperature and amount of catalyst. The most important finding is that acylation of ferrocene with adamantoyl and cinnamoyl chloride leads exclusively to monoacylated products, most probably due to a deactivation of the cyclopentadiene rings after the attachment of the first acyl group. 相似文献
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氯乙酰氯和苯甲酰氯联产工艺的研究 总被引:3,自引:0,他引:3
研究了三氯甲苯和氯乙酸在催化剂存在下反应生成氯乙酰氯和苯甲酰氯的工艺条件。70-0 g氯乙酸和0-6 g ZnO/SnCl2 混合加热到120 ℃,在2~3 h 内滴加160-0 g 三氯甲苯,常压蒸馏反应混合物得到81-0 g 氯乙酰氯,纯度为99% ;然后减压蒸馏得到100-0 g 苯甲酰氯,纯度为98% ,收率>90% 。 相似文献
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氯化铵分解制氨气和氯化氢工艺 总被引:2,自引:0,他引:2
对NH4Cl分解的硫酸氢铵法和镁氧化物法分别进行了验证性实验研究,结果表明,NH4HSO4工艺NH4Cl转化率很低,不具有可行性;镁氧化物转化率较高,具有深入研究的价值. 对镁氧化物法的MgO, Mg(OH)2和Mg(OH)Cl三种工艺路线进行了系统研究,结果表明,这3种工艺的NH4Cl转化率均可达到90%以上. 与Mg(OH)Cl和Mg(OH)2工艺相比,MgO工艺具有流程简单、生产周期短、能耗小等优点. 当MgO:NH4Cl及H2O:NH4Cl的摩尔比分别为0.76:1和8.3:1时,在110℃反应4 h,氨气收率可达95%. 相似文献