化工工艺

This paper detailedly introduced the production technology, present production situation as well as the usage and development proposal etc of nicotinic acid.

王东(青岛天元化工股份有限公司，山东胶南266400)摘要本文详细的叙述了烟酸的生产工艺，生产现状以及用途和发展建议等。

AJEC possess a large-scale service center, with comprehensive range of equipment, advanced process, consummated quality management system support of outsting technical skills, providing plant shutdown, fabricating, debugging of electrical instrument or maintenance, etc.

上海埃金科全面为客户提供各种服务，现有大型维修中心基地，主要服务于化工装置的检修、配套机加工，电气、仪表的调试、保养等，设备齐全、工艺先进，拥有一整套完善质量管理体系及优秀的技术人才支持。

As relying on the universities and lnstitues in Xi'AN, TTI has the rich qualified scientists and technicians, advanced technilogy and equipments, complete quality assurence systems, and the products have been sold to European, America, East Asia, Hong kong, Taiwan, delta of Yangtsse and zhujiang River widely used for electron, plating, petrol-chemical and chemical industry, energy source projects, coking, papermaking, saltmaking, ocean projects, wet metallurgy, surface treatment, pharmacy and medical treatment, electrodemaking, coating film etc., which produced a lot of economic and social benefit.

特钢钛业'依托西安著名高校和科研院所，拥有雄厚的科研技术力量，先进成熟的生产工艺及装备，完善的质量保证体系，公司产品已在欧美、东亚、港台、中国大陆长江三角洲和珠江三角洲电子线路板、电镀、石油化工、化学工业、能源工程、焦化、造纸、制盐、海洋工程、湿法冶金、表面处理、医药医疗、电极制造、镀膜等行业得到了广泛应用，创造了良好的社会经济效益。

Special engineering plastics: GE; Basf; Polyplastics; DuPont; DSM; Japan Teijin; 2, agents have the German brand Ensinger, Gehr, Quadrant, as well as Taiwan HENGXIANG long: 3, agent SERO, AGRU high-performance polypropylene, reinforced polypropylene, high density polyethylene, polyvinylidene fluoride flat-walled pipes, pipe fittings, Pipe and metallurgical industry process PPH acid trough, chemical corrosion of equipment.

代理SERO、AGRU高性能聚丙烯、增强聚丙烯、高密度聚乙烯、聚偏二氟乙烯平壁管道、管件，缠绕管及治金行业工艺处理PPH酸槽、化工耐蚀设备。

SLD series bin container Lifter is mainly used in pharmaceutical industry for transferring and charging powder and granules. It can be used along with various main equipments, such as container blender, Tabler press, capsule filling machine and so on. It optimizes production-flow, avoid the dust and cross-contamination. It's the ideal transfer equipment in pharmaceutical industry for solid dosage section. Meanwhile, it can be also widely used in chemical industry, food-stuff industry, etc.

SLD 系列料斗提升上料机主要用于制药企业的粉状、颗粒状等固体物料的输送加料，可与混合机、制粒机、压片机、包衣机、胶囊填充机及包装机等工艺设备配套，能有效地减少交叉污染与粉尘，减轻了劳动强度，且物料不分层，是制药厂理想的物料输送设备，同时在化工、轻工食品等行业亦可广泛使用。

The Company in the National Industrial Water Treatment Engineering Research Center, Tianjin Chemical Engineering Research and Design Institute, reverse osmosis membrane group than the Tali CHEN Ai-min, Senior Engineer to support and help of the design and production of reverse osmosis membrane cleaning equipment and ink with wash agent, to overcome the other washed membrane membrane in washing process unreasonable factors.

本公司在国家工业水处理工程技术研究中心，天津化工研究设计院，反渗透膜课题组长于陈爱民高级工程师的大里支持和帮助下，设计生产的反渗透（RO膜清洗设备及墨用清洗剂，克服了其他洗膜公司在洗膜工艺中不合理因素。

Two synthetic technologies are em2 p loyed in commercial p roduction: solvent technology using tetrachloromethane as solvent, and no solventtechnology only using dimethyl carbonate itself.

固体光气是近年来迅速发展的绿色化工产品，主要通过碳酸二甲酯的光催化氯化反应合成，有四氯化碳溶剂法和碳酸二甲酯本体法工艺。

The further research will enrich the theory and practice of green C1 chemistry and performance of thermodynamically unfavo-rable reactions.

该工艺为乙酸合成和CH4与CO2的绿色化学利用开辟了新途径，其研究将会丰富C1化学化工的理论与实践，并为实现热力学不利反应提供实验方法和理论依据。

Then the mixture of NO〓 and unoxidized NO as well as SO〓(1000-4000ppm) in the gaseous phase is simultaneously absorbed with aqueous ammonia to produce useful chemical products.

氧化吸收技术是燃煤烟气脱硫脱氮一体化工艺技术之一，其基本思想是利用烟气中较高浓度的O〓(4-7％)，在SO〓(1000-4000ppm)存在下，在150℃左右的烟气温度下，将NO(300-800ppm)部分催化氧化成NO〓，然后转化为有用的化工产品。

Application of advanced production equipment and techniques, through unremitting efforts, and has ascended to the forefront of the chemical industry.

应用先进的生产设备和工艺，通过不懈的努力，目前已跻身于化工行业的前列。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失