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chlorination n.【化學】氯化(作用),加氯(消毒)法。

chlorine

Abstract : the effects of sodium hydroxide concentration and chlorination temperature on effective chlorine content of calcium hypochlorite were tested . the effects of mesh number of standard sieve on effective chlorine content of calcium hypochlorite were tested . the retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched , and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested . the results indicate that when sodium hydroxide concentration is 333 . 3 g / l , and chlorination temperature is 20 , the effective chlorine content of calcium hypochlorite is highest , that when mesh number of standard sieve is 180 mesh , the effective chlorine content of calcium hypochlorite is higher , but the passing sieve rate is not too low , that the cycle number has no remarkable effect on the effective chlorine content of calcium hypochlorite , and the effective chlorine content of calcium hypochlorite is basically above 80 % 文摘:測試了燒堿質量分數和氯化溫度對漂粉精有效氯含量的影響,測試了分鹽用標準篩目數對漂粉精有效氯含量和過篩率的影響.研究了漂粉精母液中有效氯的回用工藝流程,并測試了循環次數對漂粉精有效氯含量的影響.結果表明,燒堿質量分數為25 、氯化溫度為20時,漂粉精的有效氯含量最高;標準篩目數為180目時,漂粉精的有效氯含量較高而過篩率不太低;循環次數對漂粉精有效氯含量沒有顯著影響,并且漂粉精有效氯含量基本上可以達到80以上

Gas chromatography - mass spectrometry ( gc - ms ) analyses showed that both potassium permanganate and chlorine could oxidate the organic matters with unsaturated functional groups into those with carboxyl , hydroxyl and aldehyde . and it was further revealed that after preoxidation by potassium permanganate , the sorts of organic matters were reduced remarkably , however , chlorination leaded to increase of the sorts of orgnic matters and brought some chloro - organics such as chlorobenzene , chlorophenol , and trichloro - ethane 通過色譜-質譜聯用( gc - ms )評價分析了高錳酸鉀和氯對有機物結構的改變,高錳酸鉀和氯均將原水中的一些不飽和性有機物氧化分解為一些含氧基團的有機物,如羧酸類、醇類和醛等有機物,但預氯化會在水中出現一些鹵代物,鹵代產物不僅出現在苯環上,而且出現在鏈烴上。

The applications of iron - containing compounds ( pd / fe bimetallic system , fes2 , fe2o3 , fes , fe4 ( superscript ) fe2 ( superscript ) ( oh ) 12so4yh2o , etc ) in degradation of chlorination compounds , such as hexachloroethane , carbon tetrachloride , pentachloroethane , tetrachloroethane , trichloroethane , trichloroethylene , tetrachloroethylene and so on , are reviewed in this paper , as well as their reaction mechanisms 摘要綜述了鈀鐵、二硫化鐵、硫化鐵、三氧化二鐵、綠銹等含鐵化合物在降解六氯乙烷、四氯化碳、五氯乙烷、四氯乙烷、三氯乙烷、三氯乙烯、四氯乙烯等有機氯化物中的應用以及降解機理。

In this paper , six methods of ammonia - nitrogen wastewater physic - chemical denitrication treatment were infroduced , such as blow - removal , steam - abstraction , crystallization , chemical precipitation , chlorination and ion exchange . their mechanisms and engineering application were analyzed and studied respectively . several problems to be cared for in development and implemention of the wastewater treatment techniques were pointed out 介紹了吹脫法、氣提法、結晶法、化學沉淀法、氯化法、離子交換法6種常用的氨氮廢水物化法脫氮處理技術和工程應用情況,并指出了在開發和實施氨氮廢水脫氮處理技術(工程)時需要注意的問題。

Methods 3 , 3 - bis ( dibenzyloxyphosphoiyl ) propionic acid ( 5 ) and ( 6 ) were synthesized from tetraethyl methylene bisphosphonate via hydrolysis , chlorination of the acid , esterification , condensation , then 3 , 3 - bis ( dibenzyloxyphosphoryl ) propanol ( 6 ) was obtained via selective reduction of ( 5 ) 方法以亞甲基偕二膦酸四乙酯( 1 ) ?原料經水解、氯膦酰化、酯化、縮合得3 , 3二(二芐氧膦酰基)丙酸( 5 ) ,隨后選擇性硼氫化還原得3 , 3二(二芐氧膦酰基)丙醇( 6 ) 。

I division is a series of products dedicated to the production of organic tin taiwan - funded enterprises , there are two main products yueguisuan two butadiene styrene tin , tin - butadiene styrene oxide , two butadiene styrene oxide tin , 3 butadiene styrene oxide tin , 3 butadiene styrene chlorination tin 我司是一家專門生產有機錫系列產品的臺資企業,主要產品有二月桂酸二丁基錫、單丁基氧化錫、二丁基氧化錫、三丁基氧化錫、三丁基氯化錫等。

Division is a series of products dedicated to the production of organic tin taiwan - funded enterprises , there are two main products yueguisuan two butadiene styrene tin , tin - butadiene styrene oxide , two butadiene styrene oxide tin , 3 butadiene styrene oxide tin , 3 butadiene styrene chlorination tin 我司是一家專門生產有機錫系列產品的臺資企業,主要產品有二月桂酸二丁基錫、單丁基氧化錫、二丁基氧化錫、三丁基氧化錫、三丁基氯化錫等。

Abstract : cetirizine hydrochloride was synthesized from chlorobenzene and benzoyl chloride by the friedel - crafts reaction , reduction , and chlorination followed by condensation with piperizine , 2 - chloroethanol and sodium chloroacetate in turn in 28 . 2 % overall yield based on chlorobenzene 文摘:以氯苯和苯甲酰氯為起始原料,經付克反應、還原、氯化,再分別與哌嗪、氯乙醇、氯乙酸鈉縮合,成鹽制得鹽酸西替利嗪,總收率為28 . 2 %

It is pointed out that through absorbing the quintessence of both chlorination refining and sulfur acid hydrometallurgical refining processes , present traditional refining technology should be transformed so as to reliably transit to completely - hydrometallurgical refining of high grade nickel matte 指出,現行高冰鎳精煉工藝的改造應吸取氯化精煉和硫酸濕法精煉兩種工藝的長處,穩妥地向高冰鎳全濕法精煉過渡。

Mirtazapine was prepared by a seven - step reaction , namely nucleophilic ring - opening reaction , chlorination , cyclization , uncleophilic substitution , hydrolysis , reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials , with overall yield of 22 . 6 % 摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料,經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。

With the prolong of contact time , the increment scope of ttms and halogen acetic acid will decrease . d ) comparing to chlorination , chloroamine disinfection is a better way in reducing the mutations of the objects in drinking water D )氯胺消毒方式在減小飲用水的致突變性即降低飲用水的毒副方面明顯優于氯消毒,對總aoc的生成具有較好的抑制作用,水體生物穩定性優于氯消毒方式。

Flumiclora - pentyl was prepared from p - fluorophenol as starting material via several steps such as chlorination , nitrification , reduction and condensation . the yield of the product was 50 % , and the purity was higher than 97 % 摘要以對氟苯酚為原料,首先與氯氣發生反應,生成2 -氟4 -氯苯酚,再經過硝化、還原、縮合等幾步反應得到氟胺草酯,反應總收率達到50 % ,產品純度大于97 % 。

The dcs applications in raw water intake , chlorination and chemical dosage , filtration station , output pumping house , power switching house and main control room are specially described in detail under different conditions of waterworks 并根據水廠生產的工藝過程,著重介紹了集散控制系統在原水取水、加藥加氯、濾池、配電、出水泵房和水廠控制室中各種不同場合的應用情況。

Advances on molecule - bolt selective monochlorination and reaction - separation coupling techniques for chlorination reaction in the world were introduced , and the control technology which achieved high selectivity was showed 通過介紹國內外分子篩擇形催化氯化及氯化反應分離耦合工程技術的進展,展示實現有機氯化反應高選擇性的控制技術,為氯化產品工業技術的提升提供參考。

Methods atomoxetine hydrochloride was synthesized using 3 - phenyipropanol as the starting material via six steps , such as chlorination , bromination , etherification , substitution , separation of levorotary isomer and acidification by gaseous hydrogen chloride 方法以1 -苯丙醇為起始原料,經氯代、溴代、醚化、胺化、拆分、氯化氫成鹽6步反應合成鹽酸托莫西汀。

Sewage pumping facilities were installed to carry waste water to treatment plants : for example , pumping facilities at the repulse bay chlorination plant were completed in 1989 , reducing bacterial levels in the waters of repulse bay 此外,政府并建立多個污水輸送設施將污水輸往處理廠,于1989年啟用設于淺水灣加氯污水處理廠內的輸送設施便是當中的實例。

Yongjia has a good command of the key technologies : chlorination , fluorination , bromination , nitration , ammoniation . etc . our manufacturer was also approved by many overseas big companies and had established friendly business relationships 在2004年年底,公司相繼在上海深圳北京蘇州等地設立了辦事處,公司的綜合規模和實力已經有了一個質的飛躍。

The treated effluent from the ngong ping sewage treatment plant will further be subject to chlorination , before being conveyed for reuse at the cable car ngong ping terminal and ngong ping village for toilet flushing 昂坪污水處理廠排出的經處理污水經再作加氯處理,然后輸送至在昂坪吊車總站和昂坪市集的廁所使用。

The chlorination reaction and distillation principles are discussed and the factors of affecting reaction speed and distillation outturn are analysed . the control methods were also designed 論述了氯化反應原理和精餾原理,分析了影響反應速度和影響精餾產品質量的因素,并進行了控制方案的設計。