Improvement on p-methyl benzene sulfonic chloride production process

The qualified rate of wood dust concentration was 58.4%, while methyl benzene was 84.5% and noise intensity was 68.5%.

木尘和甲苯的浓度及噪声强度的合格率分别为58.4%、84.5%和68.5%；

Simultaneous Determination of Benzene and Methyl Benzene by Artificial Neural Networks Ultraviolet Spectrophotometry

人工神经网络紫外分光光度法同时测定苯和甲苯

A study on the alkylation of benzene with ethanol to ethyl benzene

苯与乙醇烷基化制乙苯的研究

The Mathematical Model and Optimal Design of the Adiabatic Reactor for Dehydrogenation of Ethyl Benzene

乙苯脱氢绝热反应器的数学模型和设计优化计算

Study on online simulation and optimization operating system for the ethyl benzene/ styrene distilling apparatus

乙苯/苯乙烯精馏塔在线模拟与优化操作系统

Simulation of Axial-Radial Reactor and Its Application to Ethyl Benzene Dehydrogenation Plant

轴径向反应器的模拟及其在乙苯脱氢装置的应用

The technology feature is to separate ethyl benzene and styrene by single tower.

其工艺特点是用单塔流程分离乙苯与苯乙烯。

Technical Economics Analysis of Ethyl Benzene/ Styrene Separation

乙苯/苯乙烯分离工艺技术经济分析

Optimization of final stage operating conditions of reverse alkylation in ethyl benzene plants

乙苯装置反烷基化反应末期操作工况的优化

Clinical analysis on 10 cases of occupational chronic benzene poisoning

职业性慢性苯中毒10例临床分析

Study on the index of early biological supervision of chronic benzene poisoning

慢性苯中毒早期生物监测指标的研究

Analysis on 33 chronic benzene poisoning cases in bag industry

箱包业慢性苯中毒33例分析

Applied research on nursing comprehensive score in benzene poisoning patients

苯中毒病人护理综合评分的应用研究

Objective To study the combined treatment effect on benzene poisoning.

目的研究苯中毒药物联合治疗的有效性。

Study on the Functions of Bone Marrow Cells in Benzene Poisoning

苯中毒时骨髓细胞功能的实验研究

Analysis on differential expression profile of cytochrome P450 genes in benzene poisoning cells using cDNA microarray

用cDNA微阵列芯片检测苯中毒细胞色素P450基因表达差异

The results show that benzo ( a) pyrene is of the highest total score in several kinds of persistent toxic substances, followed by chromium ( VI), cadmium, lead and benzene hexachloride ( BHC, a kind of organo-chlorine pesticides).

结果表明，在几类典型的持久性毒害污染物中，苯并（a）芘的总分值最高，其次为重金属类的铬（六价）、镉、铅及有机氯农药类的六六六。

METHODS The residues of 4 isomers of benzene hexachloride ( BHC), 4 isomers of dichloro-diphenyl trichloroethane ( DDT) and pentachloro nitrobenzene ( PCNB) were determined by gas chromatography.

方法采用气相色谱法对六六六（BHC）4种异构体、滴滴涕（DDT）4种异构体和五氯硝基苯（PCNB）进行测定。

Using concentration of benzene hexachloride ( BHC) and dichlorvos ( DDVP) by 3 ∶ 1, the control effect can reach 98.6%.

采用六六六加敌敌畏按3∶1混合剂进行化学防治，防治效果达98.6%。

Results The detectable rates were 100 percent whether 666 ( benzene hexachloride) or DDT ( dichloro diphenyl trichloroethane).

结果人发中666、DDT的检出率均为100%。