HB－912杀菌灭藻剂的研究与应用

针对氧化型杀菌灭藻剂价格高、杀菌灭藻效率低的问题，以叔胺和氯化苄为原料，研制出一种低毒高效非氧化型杀菌灭藻剂ＨＢ－９１２，并在工业循环冷却水系统得到了广泛的应用，效果良好。     

杀菌剂杀灭细菌孢子的环境条件的初步探讨

为了有效地控制工业循环水系统中的菌藻的危害,往往要投加杀菌灭藻剂。在长期使用一种杀菌剂后,水中微生物产生了耐药性,因而降低了药物的杀菌灭藻效果。目前使用的杀菌灭藻剂虽对微生物的营养细胞具有较高的杀伤作用,但对细菌的芽孢(即孢子)的杀伤作用就较低。我们在筛选杀菌灭藻剂的试验中,曾测定了β—氨基酮对菌藻类的作用,证明它具     

二氧化氯在循环冷却水中的应用

本文介绍了ＣｌＯ２作为杀菌灭藻剂的工艺机理,在工业循环水中的杀菌灭藻效果,并对其进行经济性比较。     

BC-655杀菌灭藻剂的应用研究

ＢＣ－６５５是含２,２－二溴－３－氢川丙酰胺（ＤＢＮＰＡ）等协同组分的溶液杀菌来藻剂,是当今世界上流行的绿色杀菌灭藻剂。它广谱、高效、杀菌灭藻迅速,剥离效果明显,毒性低、降解迅速,与其他水处理剂配伍性好,对设备腐蚀性小。ＢＣ－６５５杀菌灭藻剂采用溶液合成方法,产品克服了国际上常用水系合成固体ＤＢＮＰＡ用于水处理杀菌时溶解度低、现场使用加药定量困难等缺点。作者主要研究了ＢＣ－６５５在工业循环冷却水系     

季铵盐杀菌灭藻剂控制工业循环冷却水中的藻类生长

本文在收集到的国内外十四种杀菌灭藻剂的基础上,对经过筛选获得的具有高效低毒、强剥离作用的三种季铵盐杀菌灭藻剂进行了静态实验研究,发现这三种季铵盐杀菌灭藻剂与NsClO配合使用,具有协同效应,用量少,效率高。     

两性杀菌剂在山西五麟焦化厂的应用

藻类及生物黏泥是工业循环冷却水系统的主要危害之一.采用高效、广谱杀菌灭藻剂来抑制藻类及生物黏泥是目前工业水处理技术的主要措施.原采用异噻唑啉酮和洁尔灭作为杀菌灭藻剂,效果不佳,后采用两性杀菌剂TS-781取得了较好的应用效果.     

国外文摘

新型杀菌灭(?)剂—(日)化学工业时报,1984、1、P5日本三菱油化公司和美国联合生产新型杀菌灭藻剂—泰库特马-38(テクタマ-38),这种药剂广泛用于工业循环冷却水,锅炉冷却水和废水的杀菌灭藻。     

一九八四年广东化工科技成果简介

1.杀菌灭藻剂S_(15) 杀菌灭藻剂S_(15)是广东省化工研究所为配合山西化肥厂引进项目研制出来的新型杀菌灭藻剂。它具有高效、广谱、使用安全的特点,原料全部可立足国内,对工业水中主要细菌、真菌和藻类的杀灭效果,不低于美国Drew公司的Biosperse 284,且药效维持时间较长,在水中氨含量高的情况下,对粘泥和NO_2~-都有十分明显的抑制作用,使用S_(15)经济效益十分显著,每吨水处理费低于目前国内使用的非氧化性杀菌灭藻剂,与目前国内使用过的G—4比较,投药一次,节省3280元,节约60％。本成果已于八四年三月通过技术鉴定。     

GD-423杀菌灭藻剂在循环冷却水系统中的应用

GD-423是以TCMTB为主成分的新型杀菌灭藻剂,该杀菌剂对循环冷却水中的铁细菌、亚硝化菌,真菌特别有效。使用结果表明：GD-423具有杀生速度快,杀菌、灭藻及剥离粘泥效果好的特点,值得推广。     

B—二乙氨基对氯苯丙酮盐酸盐对枯草芽孢杆菌氧吸收率的影响

一、前言大型化肥、化工、炼油、冶金、电力等企业的循环冷却水中广泛使用控制微生物腐蚀的杀菌灭藻剂。我国对工业水杀菌灭藻剂的研究开始较晚。南京大学生物系和化学系在这方面做了一些工作,但对于杀菌灭藻剂的机制尚未做过借边分系统的研究。日一烷基氨基苯丙酮是模拟灭草松中的一种。     

Water‐Triggered Rapid Release of Biocide with Enhanced Antimicrobial Activity in Biodiesel

Biodiesel inherently contains more water than mineral diesel and as a result microbial contamination is a major problem that hinders its widespread application. The current method of removing the microbial contamination is direct addition of biocide. However, this method cannot enrich the water phase with biocide rapidly enough, leading to unavoidable overdosing of biocide and environmental issues. Here, biocide is encapsulated within hydrogel microparticles with a water‐triggered release feature to improve antimicrobial efficiency of biocide in biodiesel. To demonstrate the water‐triggered release mechanism, a green dye is encapsulated within the microparticles. The encapsulated dye remains inside the microparticles for more than 6 weeks when the microparticles are stored in oil phase; however, the dye releases in 4 min when the microparticles contact water. Using this water‐triggered release strategy, biocide is successfully delivered to the water phase in biodiesel. The encapsulated biocide shows higher antimicrobial efficacy than that of free biocide, in both short‐term and long‐term experiments. The possibility of scaling up the production of hydrogel microparticles using bulk emulsification method is also explored. Moreover, the water‐triggered release strategy can be used for releasing other water‐soluble functional materials. This opens opportunities for a wide range of encapsulation and controlled delivery applications.     

二氧化氯及其在水处理中的应用

二氧化氯是一种高效的消毒剂，其杀菌能力在高ｐＨ与氨存在的情况下仍很好。二氧化氯不会与水中的腐植酸反应生成卤代烃，是理想的代用消毒剂，本文综述了二氧化氯的性质，制备，分析，应用情况，以及二氧化氯消毒时存在的问题与解决办法。     

二氧化氯的性质、应用及制备方法研究

综述了二氧化氯的性质、应用和制备方法     

氯化聚氯乙烯的制备及重要性能比较

将SG-3、SG-5、SG-8三种型号的PVC通过水相悬浮法分别氯化得到四种氯含量不同的产品,然后重点考察增塑剂吸收量随着氯含量改变的变化规律及最终产品的热性能比较,最后得出结论：（1）随着氯含量的增加,SG-3PVC树脂氯化后CPVC产品的增塑剂吸收量逐渐减小;SG-5PVC树脂氯化后CPVC产品的增塑剂吸收量先减小后增大;SG-8PVC树脂氯化后CPVC产品的增塑剂吸收量先增大后减小最后又增大。（2）随着氯含量的增加,三种原料氯化后产品树脂颗粒的粒径都逐渐增大,只是增大幅度变化不同。     

Analytical method for the release of isothiazolones from microtubules in artificial seawater

With restrictions on the use of metallic biocides in aquatic antifouling coatings, it is important to develop new methods to both contain and deliver these alternative compounds from marine coatings systems. Utilization of microencapsulation is one approach to the delivery of biocides that has not been utilized in the mainstream of antifouling paint formulations. When formulating next generation paints that utilize hydrophobic nonmetallic biocides, it is necessary to develop an understanding of the release kinetics of the compounds from model polymeric coatings in order to better develop methods for providing long-term efficacy. The biocide 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one is a nonmetallic and nonenvironmentally persistent biocide that has been registered in several countries for use as an antifouling agent and has gained approval by the U.S. Environmental Protection Agency. The release characteristics of this biocide from copper microtubules as well as polymeric films were determined by high performance liquid chromatography. Center for Biomolecular Science & Engineering, Code 6930, Washington, D.C. 20375-5348.     

悬浮ACR接枝共聚树脂与普通PVC共混树脂性能比较

在相同的实验检测条件下,对比分析了悬浮ACR接枝共聚树脂与PVC SG-5、PVC SG-5和抗冲改性剂CPE(或ACM)共混树脂基本物理力学性能、流变性能等的差异。比较结果表明,悬浮ACR接枝共聚树脂更具有优势。     

Susceptibility of Mycobacterium immunogenum and Pseudomonas fluorescens to Formaldehyde and Non-Formaldehyde Biocides in Semi-Synthetic Metalworking Fluids

Mycobacterium immunogenum, a newly identified member of the Mycobacterium chelonae_M. abscessus complex is considered a potential etiological agent for hypersensitivity pneumonitis (HP) in machine workers exposed to contaminated metalworking fluid (MWF). This study investigated the biocidal efficacy of the frequently applied commercial formaldehyde-releasing (HCHO) biocides Grotan and Bioban CS 1135 and non-HCHO type biocides Kathon 886 MW (isothiazolone) and Preventol CMK 40 (phenolic) toward this emerging mycobacterial species (M. immunogenum) in HP-linked MWFs, alone and in presence of a representative of the Gram-negative bacterial contaminants, Pseudomonas fluorescens, using two semi-synthetic MWF matrices (designated Fluid A and Fluid B). Relative biocide susceptibility analysis indicated M immunogenum to be comparatively more resistant (2-1600 fold) than P. fluorescens to the tested biocides under the varied test conditions. In terms of minimum inhibitory concentration, Kathon was the most effective biocide against M. immunogenum. Fluid factors had a major effect on the biocide susceptibility. Fluid A formulation provided greater protective advantage to the test organisms than Fluid B. Fluid dialysis (Fluid A) led to an increased biocidal efficacy of Grotan, Kathon and Preventol against M. immunogenum further implying the role of native fluid components. Used fluid matrix, in general, increased the resistance of the two test organisms against the biocides, with certain exceptions. M. immunogenum resistance increased in presence of the co-contaminant P. fluorescens. Collectively, the results show a multifactorial nature of the biocide susceptibility of MWF-colonizing mycobacteria and highlight the importance of more rigorous efficacy testing and validation of biocides prior to and during their application in metalworking fluid operations.     

催化法合成四乙基溴化铵

用自制的ＳＧ－９４催化剂常压合成了四乙基溴化铵，优选了最佳工艺条件，并进行了母液套用试验。研究表明，ＳＧ－９４催化剂的催化效果优于专利报道的卤素催化剂。     

108m~3聚合釜生产SG-8型聚氯乙烯树脂的工艺改进

分析SG-8型聚氯乙烯树脂生产现状,详细介绍108 m3聚合釜生产SG-8型树脂的工艺改进及对产品质量和产量造成影响的解决措施。     

SG-5型PVC软树脂的研发与规模化生产

介绍了SG-5型PVC软树脂在调试过程中存在的问题和解决方法,试验过程中通过调整聚合温度、分散剂用量及比例、引发剂比例、搅拌转速等,制得既满足管材型材的使用要求、又尽可能倾向于软制品加工要求的SG-5型软树脂。