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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