对苯二甲酰氯合成

对苯二甲酰氯是重要的化工原料,我们以对苯二甲酸为原料,氯化亚砜为氯化试剂,在催化剂催化下,一步得到对苯二甲酰氯。此法收率很高,产品很好处理,纯度高,比对苯二甲酸和PCl_5和乙酰氯制备方法有更多的优点。     

苯甲酰氯合成工艺的研究

介绍了以苯甲酸为原料合成苯甲酰氯的几种工艺，介绍了苯甲酰氯的物理性质和产品规格。详细介绍了实验室中用三氯甲基苯和苯甲酸合成苯甲酰氯的试验步骤、结果及分析方法。     

相转移催化法快速合成对苯二甲酰氯

对苯二甲酰氯是重要的有机中间体,以对苯二甲酸为原料,氯化亚砜为酰化试剂,在相转移催化剂的作用下,可以制得对苯二甲酰氯。方法具有反应时间短,收率高,纯度高,产品易分离等优点,与吡啶作催化剂相比,大大缩短了反应时间,与对苯二甲酸和PCl5和乙酰氯反应的制备方法相比也有长处。     

氯乙酰氯和苯甲酰氯联产工艺的研究

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％ 。     

苯乙基对苯二甲酰氯的合成

在醋酸钯 /三邻甲苯基膦存在下 ,溴代对苯二甲酸二甲酯与苯乙烯发生Heck反应 ,得到苯乙烯基对苯二甲酸二甲酯 (产率 5 8 4% ) ,随后在Pd/C催化下室温进行加氢反应 ,得到苯乙基对苯二甲酸二甲酯 (产率6 6 % ) ,其进一步经皂化、酸化得到相应的二酸 ,再以过量的SOCl2 回流完成了氯酰化反应 ,合成了苯乙基对苯二甲酰氯。各步产物的结构由元素分析、IR和′HNMR确认。     

对氟苯甲酰氯的合成

对氟苯甲酰氯是合成杀菌剂氟吗啉、新型强效脑血管扩张药物"氟苯桂嗪"及治疗老年神经性痴呆症药物"都可喜"等药物的一个重要中间体。以对氟甲苯为原料,以氯化、水解反应合成对氟苯甲酰氯,总收率为97.8%,产品含量为99.5%。     

对苯二甲酰氯的合成

本文研究了以对二甲苯为原料，经氯化，酸交换制备对苯二甲酰氯的方法。本法成本低、产率高，便于工业化生产。     

苯甲酰氯的合成与应用

叙述了苯甲酰氯的性质、合成工艺路线、实验室和工业制法,产品规格及其分析方法。并对其深加工产品及其应用进行了概述。     

对氟苯甲酰氯的合成研究

以对氟甲苯为原料,经氯化、水解、精馏制备对氟苯甲酰氯。通过对氯化反应、水解反应条件进行筛选,得出最优反应条件：（1）氯化反应时,反应温度为100～105℃,反应时间5h,抑制剂为三乙醇胺,且m（三乙醇胺）∶m（对氟甲苯）=0.7∶1000,在此条件下,反应收率98.5%;(2)水解反应时,反应温度为120℃,催化剂为三氯化铁,且n（三氯化铁）∶n（对氟三氯苄）=0.02∶1,在此条件下,反应收率98.9%。两步总收率高达97.4%。     

Photostability of wood surfaces esterified by benzoyl chloride

The photostabilization of wood surfaces is desirable to enhance the life of wood under exterior use and to improve the performance of clear coatings on wood surfaces. Chemical modification of wood has been found effective in upgrading properties such as biological durability and dimensional stability and has been suggested as a potential way for inducing photostability on wood surfaces. In this study, the photostability of chemically modified wood was assessed under accelerated weathering conditions. Wood specimens of Pinus roxburghii (Chir pine) were esterified with benzoyl chloride to 19.5 wt % gain and exposed to a xenon arc light source in a Weather‐O‐Meter for different periods ranging from 0 to 500 h. The irradiated samples were analyzed for color changes and chemical changes. The analysis of color changes in wood surfaces by ultraviolet–visible irradiation was carried out with a color measuring (CIELAB) system, and chemical changes were characterized with fluorescence and Fourier transform infrared spectroscopy. The esterification of wood by benzoyl chloride suppressed the color changes (photodiscoloration) due to irradiation. Modification also reduced the lignin degradation and generation of carbonyl groups on the surface of the irradiated wood. The fluorescence emission spectra of irradiated unmodified wood showed a large reduction in intensity and a large redshift in the emission maximum, whereas modified wood showed only a small change in fluorescence intensity on irradiation. The results show that the esterification of wood with benzoyl chloride was effective for the photostabilization of the wood polymers. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci, 2006     

“姜钟法”氯乙烯合成新工艺

介绍了以乙炔和二氯乙烷为原料,通过催化重整生产氯乙烯的新路线。该工艺与传统氯乙烯合成方法相比,具有节能、高效、收率高、投资少等优点,经济效益和社会效益显著。     

止汗剂碱式氯化铝研制新方法

介绍了用粉煤灰研制碱式氯化铝的新方法,不但可以消除粉煤灰污染,还可以生产质量优良的碱式氯化铝,既实现了废物综合利用,又保护了环境、消除粉煤灰扰民问题。通过对粉煤灰碱式氯化铝重金属成分分析,发现该产品各项重金属指标均符合产品标准及我国化妆品卫生标准,证实完全可以用粉煤灰生产化妆品止汗剂碱式氯化铝,为粉煤灰碱式氯化铝开辟了新的使用领域。     

Kinetic study of reactions of aniline and benzoyl chloride in a microstructured chemical system

The reaction between aniline and benzoyl chloride is well known for producing high performance polymers and chemicals. But the fast main reaction and reversible consecutive side reaction make process rather complicated and no thorough kinetics study has ever been reported before. A microstructured chemical system, consisting of a micromixer, preheat exchange coiled capillaries, a delay loop, and a microhydrolyzer, was designed to carry out this reaction using N‐methyl‐2‐pyrrolidone as the solvent. A kinetic model was established, and the values of kinetic constants, pre‐exponential factors and activation energies of each reaction as well as their confidence intervals were acquired. With this model each substance concentration vs. residence time were obtained to help understand reaction process and further optimize operating conditions. Compared to earlier reports on this reaction, this microstructured chemical system provides more accurate parameters and can develop a reliable platform for kinetic study of similar chemical reactions. © 2015 American Institute of Chemical Engineers AIChE J, 61: 3804–3811, 2015     

Convenient synthesis of benzoate esters mediated by polymer supported benzoyl chloride

Use of polymeric reagents simplifies routine acylation of alcohols because it eliminates traditional purification. We describe the use of readily available crosslinked poly(N‐benzoyl‐4‐vinylpyridinium)chloride, [P₄VP] COPh, in the solution phase synthesis of esters from alcohols or phenols in the presence of K₂CO₃ in high yields and purity. The products can be obtained by filtration and evaporation of the solvent and the polymeric reagent can be regenerated. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

高杂质氟硅酸制备氟化铵联产氟化镁工艺技术研究

设计和研究了一种由高杂质氟硅酸制备氟化铵联产氟化镁的高效利用工艺。根据高杂质氟硅酸和氟化铵母液的特点,深入研究了工艺过程中的关键影响因素,包括pH、反应温度、游离氨、加料方式、放热曲线、浓缩曲线及物料平衡等,弥补了相关研究的不足,得到了最佳工艺条件。在该条件下,氟化铵一次结晶收率约为25%,符合GB/T 28653—2012中一等品的要求;氟化镁收率达到95%以上,符合YS/T 691—2009中MF-2的要求。浓缩研究表明,氟化铵质量分数与密度呈现出良好的线性关系,关系式为y=3.977 8x-4.001 7（y为质量分数,x为密度）,浓缩结晶的临界密度为1.14 g/cm³。物料平衡研究显示,该工艺路线原料利用率高,具有重要的工业应用价值。     

High activity of iron containing metal-organic-framework in acylation of p-xylene with benzoyl chloride

Catalytic behavior of metal-organic-frameworks (MOFs) Cu₃(BTC)₂, MIL-100(Fe) and MIL-100(Cr) was investigated in p-xylene acylation with benzoyl chloride and compared with the behavior of large pore zeolites Beta and USY. It has been clearly shown that MIL-100(Fe) exhibit much higher conversion of benzoyl chloride with excellent selectivity in p-xylene acylation. The performance of MIL-100(Fe) catalyst was favorable with those of other conventional heterogeneous catalysts like zeolites. Conversion of benzoyl chloride equal to 100% was achieved over MIL-100(Fe) with 20-30 min under optimized reaction conditions. It is assumed that unsaturated Lewis acid sites associated with the presence of Fe exhibit optimum acid strength for catalyzing this acylation reaction.     

新法制备氯苯和对二氯苯格氏试剂

在无任何引发剂存在下,以普通镁屑（ 粉） 、氯苯、对二氯苯、无水四氢呋喃或无水乙醚等为原料,制备了氯苯、对二氯苯的格氏试剂,其收率均在９０％ 以上。与传统制备方法相比,反应更易引发,反应条件更易控制,收率较高。     

城市煤气联产甲醇的集成与创新

河南省城市煤气联产甲醇项目是以煤气为主导产品的社会公益性工程,为义马至郑州的十几个沿线城市提供城市燃气。该工程以义马坑口煤为原料综合利用,采用自行开发设计的城市煤气联产甲醇创新集成新工艺,成功地解决了城市煤气调峰调质和实际生产中结蜡等技术难题,解决了城市煤气和甲醇生产对原料气气体成分要求不一致的矛盾,为城市煤气联产甲醇提供了全套工艺软件与核心生产技术,对于促进煤炭的清洁高效利用、提高煤的综合利用水平,降低环境污染、建设资源节约型和环境友好型社会都具有重要意义。     

氯乙烯聚合尾气闭路循环回用新工艺

介绍了氯乙烯聚合尾气闭路循环回收工艺的原理、设备配置和技术特点。该工艺增加了干法回收设备,可降低生产成本,实现清洁生产。