With increasing of feeds temperature acetic acid concentration of tower top increased and acetic acid concentration of tower bottom decreased .

随着进料位置从最佳进料位置上移或下降，分离效果降低。（5）随着进料温度的升高， 塔顶 醋酸浓度升高，塔釜醋酸浓度降低，分离效率变差；

The yield model of oxidation tower in aldehyde oxidizing to acetic acid was built by RBF ( Radial Basis Function ) neural network in this paper which studied and improved the selection of β and Δ of training information and modeling study online .

研究用RBF神经网络建立乙醛氧化制 醋酸氧化 塔收率模型，并对RBFN的训练信息的β值、Δ值的选取和在线学习等方面作了研究和改进，与改进前相比，性能明显提高。

A new type filler PTFE ladder Rasching ring is designed and used in the washing tower of anhydrous hydrofluoric acid equipment properties of this filler is also analyzed .

设计了1种新型填料―PTFE阶梯拉西环并应用在无水 氢氟酸装置的洗涤 塔中，分析了该填料的特性。

Design of Dry in g & Absorption Tower in Sulphuric Acid Plant

80kt/a 硫酸装置干吸 塔的设计

1 2 ~ dichloro-4-nitrobenzene ( D ) was prepared in a tower chlorinator for which 1-chloro-4-nitrobenzene ( P ) reacted with chlorine in presence of Lewis acid catalyst .

在 塔式氯化器中，以路易氏 酸作催化剂，氯气氯化对硝基氯苯，合成1二氯-4-硝基苯。

Rubber Vulcanized or thermoplastic Determination of compression set at ambient elevated or low temperatures On Antiseptic Treatment of Steel Tower under High Temperature and Highly Concentrated Sulfuric Acid Environment

GB/T7759-1996硫化橡胶、热塑性橡胶常温、高温和低温下压缩永久变形测定高温、高浓度 硫酸环境下的 钢塔防腐处理

On Antiseptic Treatment of Steel Tower under High Temperature and Highly Concentrated Sulfuric Acid Environment

高温、高浓度 硫酸环境下的 钢塔防腐处理

C8 Steel Used for Bleaching Tower of Concentrated Nitric Acid Production by Direct Synthesis The author describes the long course for developing the C8

介绍我国直硝漂 白塔用 C8钢研制的漫长历程、C8钢的性能及生产考核结果；提出了工业试验及推广应用的方案

Research on corrosion mechanism of stainless steel stuffing in T-403 tower in acetic acid solution

醋酸介质中T-403 塔不锈钢填料腐蚀机理研究

The results showed that the data of material balance were the same as the test run data of material balance in absorption tower and bleaching tower under the same operation conditions the qualified product of 65 % thin nitric acid could be produced .

通过对比发现，在主要操作条件相同的情况下，稀硝酸装置吸收塔、漂白 塔的物料平衡数据与装置标定数据吻合较好，能够生产出浓度为65%（质量分数）的合格稀 硝酸。

The reason for corrosion of the sealing surface of the synthetic tower is analyzed the reasonable welding techniques is made the processing equipment and method are introduced as well as the acid wash passivation treatment is illustrated in this article .

分析了合成 塔顶部密封面的腐蚀原因，确定了合理的焊接工艺，介绍了加工用设备及加工方法，阐述了加工表面的 酸洗钝化处理。

Application of HF proof Mastic in Retention Tower for Acid making

耐HF 酸胶泥在冶炼制 酸空 塔上的应用

High efficiency design was conducted for cost saving by increasing empty tower gas velocity acid distribution points and liquid rate .

通过提高空 塔气速、增加分 酸点和喷淋密度实现干吸 塔的高效设计，以节约投资。

Affecting factors for the explosion accidents of acetaldehyde oxidation tower are analyzed according to the reaction mechanism of acetic acid preparation from acetaldehyde oxidation reasons for the frequent explosion accidents of acetaldehyde oxidation tower are found and improvement measures are put forward .

根据乙醛氧化制 醋酸的反应机理，对乙醛氧化 塔爆炸事故的影响因素进行了分析，找到了乙醛氧化塔频繁发生爆炸事故的原因，并提出了预防措施。

The tower has carbon steel shell lined with ceramic tile except demister section and gas outlet nozzle which are fabricated in 316L stainless steel and has global bottom with a central hole for acid discharge .

除捕沫层简体及出气管为316L不锈钢外，其余 塔 体均为碳钢内衬瓷砖结构。 塔底为球形底，中心排 酸。

Discussion on Reasons for 20kt / a Sulfuric Acid Drying Tower Entrapped Acid

我厂2kt/a硫酸干燥 塔带 酸原因探讨

For different locations of the main blower before and after the drying tower and using actual engineering examples two configurations of the axial flow compressor unit in the sulfur-based sulfuric acid process flow are introduced as well as relevant parameters start-up principles and precautions etc.

针对主风机设置在干燥 塔前后不同位置，以工程实例，介绍了轴流压缩机组在硫磺制 酸工艺流程中的两种配置，及其相关参数、开机原理和注意事项等。

Evident effect is obtained since the high efficiency tray has been used in the dehydrating tower revamping . Acetic acid content at the overhead is reduced from 5.2 % to 0 . 75 % and acetic acid consumption of the unit greatly decreased .

应用复合孔微型阀高效塔盘改造溶剂脱 水塔后取得明显效果，塔顶 乙酸质量分数由改造前的5.2%下降到0.75%，极大地降低了乙酸消耗。

Energy Analysis for Installation of Blower Fan Before and After the Tower in A Large-scaled Sulfur-burning Sulfuric Acid Plant

大型硫磺制 酸装置 塔前 塔后设置风机的能量分析

Application of New VST in Modification of Concentration Tower for Diluted Acetic Acid

新型垂直筛板在稀 醋酸提浓 塔改造中的应用

The effect of empty tower used in wet-process phosphoric acid production is better by comparison with filled tower .

通过空 塔与填料塔在湿法磷酸过程中的应用情况对比，说明空 塔用于湿法 磷酸生产运行效果良好。

Under selected conditions the concentration of ethyl acetate in the raw ester at the tower top is over 91 percent and there is nearly no acid in it .

在选择的实验条件下， 塔顶粗酯产品中乙酸乙酯含量达到91%以上，基本不 含 酸。

The Dragon Tower Asymmetric Autocatalysis The ethyl acetate is synthesized in reaction distillation column with acid natural zeolite as catalyst .

以 酸性天然沸石为催化剂，在催化反应精馏 塔中进行了合成乙酸乙酯的研究。

This paper introduced simulation method for absorption tower and bleaching tower in thin nitric acid unit by using of Aspen Plus software .

介绍了稀 硝酸 制 备工艺过程中，使用aspenplus流程模拟软件对吸收塔、漂白 塔模拟过程中的处理方法。

As the bottom pumps of the vacuum tower mainly suffers from high-temperature corrosion and naphthenic acid corrosion the materials of the equipment should be upgraded .

高温硫和环烷 酸的腐蚀主要表现在减压 塔底油泵的腐蚀，应提高设备材质等级。