开发了一种被称为多段悬浮床塔式反应器的新型装置,以代替双酚a生产中苯酚与丙酮缩合反应所使用的固定床反应器。
A new equipment-column type suspension reactor with multiple trays, has been developed for the condensation of phenol with acetone in the production of BPA instead of conventional fixed bed reactor.
用活性白土做脱酚剂去除双酚A中的微量苯酚及其杂质,其去除率可达99%以上。
The trace phenol and impurity were removed from the bisphenol A with active white soil as dephenolizer, and its rate is more than 99%.
应用该方法,测定了双酚a-苯酚加合物结晶动力学参数。
The application of the method is illustrated by determining the crystallization kinetics of the bisphenol a - phenol adduct.
以苯酚和硫酸为原料,在催化剂的存在下合成了双酚s。
High - purity bisphenol - Sis synthesized with phenol and sulfuric acid as materials in the presence of a catalyst.
用三氯氧磷、双酚S与苯酚反应制得化合物双酚S双(二苯基磷酸酯)(BSDP)。
Bisphenol-S bis(diphenyl phosphate)(BSDP) was synthesised by phosphorus oxychloride, bisphenol-S and phenol.
利用乙酰丙酸和苯酚缩合反应制取双酚酸。
In this paper, the progress on diphenolic acid preparation by condensation reaction of levulinic acid and phenol is introduced.
方法分别采用苯酚硫酸法、刚果红法、双酶法和改良双酶法测定-葡聚糖含量,并比较结果。
Methods the content of - glucan determined by phenol - sulfuric acid method, congo red method, two enzymes method and modified two enzymes method, respectively and compare these four methods.
方法分别采用苯酚硫酸法、刚果红法、双酶法和改良双酶法测定-葡聚糖含量,并比较结果。
Methods the content of - glucan determined by phenol - sulfuric acid method, congo red method, two enzymes method and modified two enzymes method, respectively and compare these four methods.
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