Showing papers in "Science & Technology in Chemical Industry in 2000"
Journal Article•
TL;DR: In this paper, the authors described the components, characteristics, system design and operating experiences of high temperature molten salt (HTS) and also introduced the application of HTS in naphthalene oxidation process and the reaction of Naphthalenesulfonate with alkali.
Abstract: High temperature molten salt (HTS) is one of the main heat transfer materialsThe writer described the components,characteristics,system design and operating experiences of HTS,and also introduced the application of HTS in naphthalene oxidation process and the reaction of naphthalenesulfonate with alkali
1 citations
Journal Article•
TL;DR: In this article, six tetra (o/p chlorophenyl) metal porphyrins were synthesized from o /p chlorobenzaldehydes, pyrrole and metal salts, in which four are new compounds not reported by literatures so far.
Abstract: Six tetra (o/p chlorophenyl) metal porphyrins were synthesized from o/p chlorobenzaldehydes, pyrrole and metal salts, in which four are new compounds not reported by literatures so far. The structures of above compounds were characterized by IR, UV Vis. and MS. [WT5HZ]
1 citations
Journal Article•
TL;DR: In this article, an esterification of benzoic acid with methyl alcohol using chltosan sulfate as a catalyst was studied. But the experimental result showed that when the amount of catalyst was 1.0g, reaction time was 4h and the mole of alcohol to acid was 5∶1, the yield of the product was 90.56% and the catalyst could be used repeatedly for many times.
Abstract: Methyl benzoate was synthesized by the esterification of benzoic acid with methyl alcohol using chltosan sulfate as catalyst.The influences of amount of catalyst.reaction time and the mole ratio of alcohol to acid were studied.The experimental result showed that when the amount of catalyst was 1.0g,reaction time was 4h and the mole of alcohol to acid was 5∶1,the yield of the product was 90.56% and the catalyst could be used repeatedly for many times. [WT5HZ]
1 citations
Journal Article•
TL;DR: The feasibility of developing synthetic lube oil is investigated and studied in this paper, where the process, performance and application of the important kinds of synthetic Lube oil esters oil, poly (α-olefin)oil, polyether oil,polybutene oil are further discussed.
Abstract: The present conditions of synthetic lube oil at home and abroad are introduced in this paper.The process,performance and application of the important kinds of synthetic Lube oil esters oil,poly (α-olefin)oil,polyether oil,polybutene oil are further discussed.The feasibility of developing synthetic lube oil is investigated and studied.Some suggestions are given. [WT5HZ]
1 citations
Journal Article•
TL;DR: In this article, the average liquid-drop diameter (Sauter diameter) in liquid-liquid turbulence system and residence time distribution (RTD) of fluids in solid-liquid mixing system were determined in five geometrically similar nitration reactors installed double coil under different conditions.
Abstract: The average liquid-drop diameter(Sauter diameter) in liquid-liquid turbulence system and residence time distribution(RTD) of fluids in solid-liquid mixing system were determined in five geometrically similar nitration reactors installed double coil under different conditions. The empirical formula of Sauter diameter and flow model of RTD were proposed and the relevant parameters were determined by experiments. The experimental results show that there is the optimum pilot volume of the nitration reactor in heterogeneous nitration reactor scale up. [WT5HZ]
1 citations
Journal Article•
TL;DR: In this article, the production processes of chloroacetyl chloride (CAC) are expounded and the emphasis is put on the techno economic evaluation of two step method from acetic acid used as original raw material.
Abstract: The production processes of chloroacetyl chloride(CAC) are expounded.The emphasis is put on the techno economic evaluation of two step method from acetic acid used as original raw material.The current situation and its development trend of CAC is also given.In consideration of superiority of raw material in our company,some sugguestions on the development of CAC are put forward.