再谈氯碱氢深度脱水工艺

概述了氢气的主要生产方法、实际应用以及氯碱工业近年来的产能情况。详细介绍了氯碱氢的深度脱水工艺流程,并结合氯碱氢深度脱水装置的调试情况,对氯碱氢的脱水原理、氯碱氢深度脱水装置脱水效果的最佳工况选择做了进一步的研究。     

用氯碱氢生产各种规格氢气产品工艺概述

概述用氯碱工业副产的氢气,经脱氯、脱氧、干燥、变压吸附和低温吸附分离技术,生产工业氢、纯氢、高纯氢和超纯氢,并对该工艺技术进行评述。     

谈氯碱工业副产氢制高纯氢工艺

本文简介了我们研究，开发氯碱工业副产氢制取高纯氢时，所考虑的三种典型工艺流程，并对其进行了比较，以给大家以启示。     

锦西院信息中心杂志简介

《氯碱工业》(月刊)于1965年创刊,面向国内外公开发行,自1994年起有电子版,为大16开本,共48页,2001年定价为90元/年(含邮资),现主编为王志平先生。国外发行由中国国际图书贸易总公司代理。《氯碱工业》重点报道氯碱工业生产各工序(如整流、盐水、电解、蒸发、氯氢处理等)的工艺改造、工艺进展及碱产品、氯产品、氢产品的最新开发和生产建设情况,及与此紧密相关的设备、辅材、耗材生产和进展情况。《氯碱工业)承揽与此相关的广告业务,免费在网上为刊登封面四彩及所有插页单色广告的客户提供宣传。《聚氯乙烯》(双月刊)于1973年创刊,国内外公…     

鸿达兴业和旭化成合作氯碱制氢项目

正鸿达兴业股份有限公司与日本旭化成株式会社签署《氯碱制氢合作协议》。公告显示,鸿达兴业将引进由旭化成株式会社研发设计的离子交换膜法电解工艺及离子膜电解槽设备制取氢气,充分利用双方的资源和优势,推进在氯碱和氢能领域方面的合作。鸿达兴业通过纯化装置制取高纯度的气态氢、液态氢、固态氢,增强在液氢生产链条上破解难题的能力,在民用液氢生产领域有望实现突破。     

谈氯碱工业副产氢制高纯氢工艺

简介了我们研究、开发氯碱工业副产氢制取高纯氯时，所考虑的三种典型工艺流程，并对其进行了比较，给大家以启示。     

氯碱化工的生产效率控制研究

工业对于一个国家的经济来讲具有举足轻重的地位,在进行工业生产的过程中,需要在氯碱产品的基础上进行深加工,这引起了我国对氯碱化工生产效率的重视。在经济不断进步的基础上,相关部门颁布了一系列法律法规,作为保障我国氯碱生产和提高其产量的基础。近年来,我国的氯碱产量在世界上居于首位,在满足工业生产需求的基础上还能够出现剩余,因此我国氯碱生产厂家有必要加强生产控制。本文将从氯碱化工控制的必要性入手,详细阐述了有效的控制方法。     

Ni-Mo-P活性阴极制备及析氢行为的研究

采用电化学方法将Ni-Mo-P合金镀覆于低碳钢表面并形成活性阴极,评价其析氢过电位和真实表面积.结果表明,最佳镀覆工艺条件为电流密度0.03A/cm~2、镀液温度40℃、钼酸盐质量浓度3g/L.当阴极极化电流密度为0.18A/cm~2时,Ni-Mo-P活性阴极析氢过电位较镀覆前低碳钢阴极降低约300mV;其真实表面积为10.8cm~2,粗糙度为5.4,较低碳钢阴极增加约1倍,能显著降低氯碱工业电解槽的电耗水平.     

2007年PVC扩产效应突起市场不容乐观

1月下旬,由中国氯碱工业协会主办、中国氯碱网承办的2007中国氯碱论坛在厦门召开.会上,业内人士对国内聚氯乙烯(PVC)市场进行了分析与预测.     

HCl尾气净化装置解环保难题

正日前,由河北冀州市兴泰玻璃钢有限公司自主研发的新型玻璃钢HCl尾气净化回收装置在多家氯碱、聚氯乙烯企业获得应用,不仅破解了环境污染问题,还为企业带来了可观的经济效益。目前,大多数氯碱、聚氯乙烯企业对生产过程中产生的HCl尾气沿用泡沫塔吸收工艺进行净化回收,吸收效率低,后续中和处理碱液消耗高,还会造成环境污染。兴泰公司经过两年多的     

From Industry 4.0 to Research 4.0. Development of High Performance Fibers in the Light of Digitization

We associate a variety of innovations with the term ＂Industry 4.0＂. The pioneer of many 4.0 modifications forms the basisfor the trend towards the integrated di...     

Roman iron and steel: A review

ABSTRACT

The production of ferrous metal increased during the Roman Late Republican period, Principate and Empire. The direct bloomery process was used to extract the metal from its ores using slag-tapping and slag-pit furnaces. The fuel was charcoal and an air blast was introduced by bellows-operated tuyères. Iron formed as a bloom, often as a spongy mass of metal, which contained impurities from the smelting process, including unreacted ore, fuel, slag and fragments from the furnace walls, while the metal was often inhomogeneous with varied carbon contents. Blooms were either smithed directly into bars or ingots or they were broken up, which also allowed the removal of gross impurities and a selection of pieces with similar properties to be made. These could then be forge-welded together and formed into characteristically shaped ingots. Making steel in the furnace seems to have been achieved: it depended on the ore and the furnace and conditions within it. Surface carburization was also carried out. Iron and steel were used extensively in construction and for tools and weapons. Fire welding was often used to add pieces of steel to make the edges of tools and weapons, which could be heat-treated by quenching to harden them.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils

A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i. e., molybdenum dialkyldithiophosphate (MoDDP), molybdenum dialkyldithiocarbamate ( MoDTC), and sulphur and phosphorus freeorganomolybdeum (Molybdate). The results indicate that a low concentration of MoDDP doesn' t improve the anti-wear properties of the commercial engine oils, but a high concentration of MoDDP can obviously improve the anti-wear properties and the load-carrying capacity of the engine oils. MoDTC doesn' t improve the antiwear properties of the engine oils, but worsens the anti-wear properties of the oils. Signifi can timprove ment of frictional and wear characteristics is obtained with Molybdate added in the commercial engine oils and the formulated oils.     

Synthesis of Alumina-Zirconia Nanocomposites by Solgel Process

Al₂O₃-ZrO₂ nanocomposites were developed starting with the solgel process. Composite alumina-zirconia nanopowders were synthesized from metallorganic precursors (Aluminium secondary butoxide and zirconium Iso propoxide) using the solgel process. The parameters affecting the synthesis—solvent, concentration of precursor, R/H ratio (i.e., dilution of water in solvent)—were varied as also the temperature and pH. BET and TEM were used to measure nanosize. Diffuse reflectance spectroscopy and also qualitative optical absorption led to identical particle size estimate. The variation of process parameters was used to study the effect and interdependence of process parameters. Artificial Neural Networks was used to rigorously analyze the process. Although this led to confirmation of interdependence of parameters, the presence of a single overwhelming solvent variable was also established. Then the optimal process was used to synthesize more nanopowder. To produce bulk nanocomposite the nanopowders were sintered by varying the temperature and time period. The sintered lithoids were probed with a vickers hardness tester to measure elastic modulus, hardness, and fracture toughness. The results showed high elastic modulus, modest hardness, and very high fracture toughness.     

Friction Stir Processing Strategies for Uniform Distribution of Reinforcement in a Surface Composite

Friction stir processing (FSP) is an important technique for preparing surface composites. Fabricating defect-free surface composites with uniform particle distribution by FSP is a challenging task. In this study, silicon carbide particles reinforced AA5083 alloy surface composites was fabricated using different FSP strategies including variation in process parameters, dual-tool processing and tool offset overlapping. Material flow of the processed material with reinforcement particles demonstrated that the distribution of particles was influenced by the stirring action of the probe as well as the extrusion of the plasticized material due to the movement of the tool. Process parameters, particularly rotational speed, showed a dominant influence on the distribution of silicon carbide particles.     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

Certification Becomes Important for the I Quality; and Safety Supervision of the Chinese Liquor Sector

The end of 2007, over 200 unit products of more than 80 Chinese firms have passed the quality grade certification for liquor products. These products involve distilled spirits, beer, wine, yellow wine, fruit syrup wine and others, and cover over 80% of the national top-branded liquor products.……     

Deposition and Coating Properties on CVD Tungsten

Surface characterization and microstructure studies are performed on chemical vapor deposited (CVD) tungsten coating. There is about 2 μm thickness diffusion layer of tungsten in the molybdenum substrate. The thermal shock test shows tungsten coating has good adhesion with molybdenum substrate, but the elements of oxygen and carbon in the tungsten coating have the bad affection to the adhesion. The result of high-temperature diffusion experiment is the diffusion rate from molybdenum substrate to tungsten coating is faster.     

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