It shows that ammonium ferric sulfate is active.
结果表明，硫酸铁铵的催化活性良好。
Acetates were synthesized with ammonium ferric sulfate as catalyst.
以十二水合硫酸铁铵为催化剂合成乙酸酯。
Polymeric ferric sulfate was prepared by pyrite cinder in this paper.
本文进行了用硫铁矿烧渣制备聚合硫酸铁的实验研究。
Polymeric ferric sulfate (PFS) was prepared by pyrite cinder in this paper.
本文进行了用硫铁矿烧渣制备聚合硫酸铁(PFS)的实验研究。
Ferric sulfate was first used for the synthesis of di 2 ethylhexyl maleate.
首次将硫酸铁用于催化合成马来酸二辛酯。
The results indicate that ammonium ferric sulfate is possessed of good catalysis.
结果表明，硫酸铁铵具有良好的催化作用。
Conclusion: Observed from clinical efficiency, ferric sulfate is a good pulpotomy agent.
结论：从临床疗效看硫酸铁溶液是一种较好的牙髓切断药物。
Using water glass and ferric sulfate, the coagulant PFSS was prepared with the oil_field wastewater treated.
用水玻璃对自制的聚合硫酸铁进行改性处理制得聚硅酸铁混凝剂(PFSS)，应用于油田含油废水的混凝处理。
The mixed waste water from beer production was pretreated by ferric sulfate-polyacrylamide flocculation method.
采用硫酸铁-聚丙烯酰胺絮凝法对啤酒厂的混合废水进行预处理。
Suitable retraction agents include aluminium hydroxide chloride, aluminium sulfate or ferric sulfate solutions.
理想的牙龈收缩试剂包括氢氧化铝氯化物，硫酸铝或硫酸铁溶液。
In this paper we recommend the function and toxicity of poly ferric sulfate and the effect of treating waste water with it.
本文简介了聚合硫酸铁的性能、毒性及使用聚合硫酸铁处理废水的效果。
Our main products chloride, the crystallization of aluminum chloride, iron chloride, poly ferric sulfate and other products.
本厂主要生产聚合氯化铝、结晶三氯化铝、聚合氯化铝铁、聚合硫酸铁等产品。
In this paper, a study on treating waste water from the production of Waleng paper with polymeric ferric sulfate is reported.
报告了以聚合硫酸铁为水处理剂，处理瓦楞纸生产废水的研究。
This paper describes the study of poly-ferric sulfate coagulation-electrolytic floatation treatment of slaughter house wastewater.
本文叙述了采用聚硫酸铁絮凝预处理和电气浮法处理屠宰废水的研究。
The results showed that the arsenic removal with ferric sulfate was better than that with ferric aluminum copolymer and polysilicon metal salt.
结果表明，硫酸铁的除砷效果优于铁铝聚合物和聚硅酸金属盐混凝剂；
The change of sodium ferric EDTA and carbonyl iron was not great, but most of ferric sulfate and ferric ammonium citrate became insoluble during storage.
乙二胺四乙酸铁钠和元素羰基铁粉在贮藏过程中变化不大，而硫酸亚铁和柠檬酸铁铵在贮藏过程中绝大部分变成了不溶性铁。
The powdery polyphosphate ferric sulfate was prepared from iron vitriol, the byproduct in titanium pigment production by sulfuric acid process, and complex oxidant.
以硫酸法生产钛白粉的副产品——七水硫酸亚铁为原料，采用复合氧化剂合成聚合磷硫酸铁粉体，探讨了合成聚合磷硫酸铁的最佳工艺条件。
The hydrated ferric sulfate was used as a catalyst for esterification of alcohol with glacial acetic acid and discussed the best condition in reaction of esterification.
报道了以硫酸铁水合物作催化剂合成乙酸酯的研究结果，并讨论了该酯化反应的最佳条件。
L-Thiazolidine-2-thione-4-carboxylic acid ethyl ester was prepared from L-thiozolidine-2-thione-4-carboxylic acid and ethyl alcohol in the presence of the hydrate of ferric sulfate.
在硫酸铁水合物催化下由L- 四氢噻唑- 2- 硫酮- 4-羧酸与乙醇反应得到L-四氢噻唑-2-硫酮-4- 羧酸乙酯。
Coupled flocculation and oxidation process was used to treat acid brilliant scarlet dye wastewater with Potassium permanganate as oxidant and poly-silicic-ferric sulfate as flocculant.
以高锰酸钾为氧化剂、自制的聚硅硫酸铁为絮凝剂，采用氧化-絮凝耦合工艺处理酸性大红废水。
About forty alkenes were prepared by dehydration of the corresponding alcohols in the presence of the ferric sulfate hydrate as catalyst. The yields of these alkenes were from 85% to 97%.
研究了在硫酸铁水合物催化下，不同叔醇脱水成烯反应，结果表明该催化剂对叔醇脱水成烯的反应有较好的催化效果，生成烯烃的产率为85～97％。
Ferric arsenite sulfate is also of recent interest and may prove to be useful in stabilizing arsenic.
含铁的亚砷酸盐和硫酸盐也是新近的关注点并且可以证明对使砷稳定有用。
Using polymeric (ferric) sulfate as remover, calcium removal rate is almost 100%. This process has characteristics of lower cost, easily controlled and not influence on the quality of products.
采用聚合硫酸铁去除液体三氯化铁中的钙离子，钙去除率几乎可达100%，产品质量较高，而且除钙工艺成本低，流程易于控制。
The structure of polymeric ferric silicate sulfate containing boron (PFSSB) was analyzed by chemical titration, transmission electron microscope and IR spectroscope.
采用化学络合滴定、透射电镜、红外光谱等方法对含硼聚硅酸硫酸铁 （PFSSB）的结构进行了分析。
The inorganic high molecule coagulant of PFASS is synthesized with the poly-silicic acid into the solution of polymeric ferric aluminum sulfate.
将活性聚硅酸与聚合硫酸铁铝按照一定比例复合，经熟化，即制得新型无机高分子混凝剂PFASS。
The flocculating constituents formed by coagulation with ferric chloride is thinner and denser than with aluminum sulfate.
氯化铁混凝形成的最终絮体较硫酸铝的细密。
The flocculating constituents formed by coagulation with ferric chloride is thinner and denser than with aluminum sulfate.
氯化铁混凝形成的最终絮体较硫酸铝的细密。
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