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坚持走循环经济之路 实现企业可持续发展 被引量:5
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作者 李强 《氯碱工业》 CAS 2007年第8期10-12,共3页
介绍了宜宾天原股份有限公司发展循环经济的模式和取得的经验。
关键词 氯碱 聚氯乙烯 循环经济
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综合法合成氰脲酸 被引量:1
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作者 付永宽 张开容 《四川化工》 CAS 1995年第2期 16-18,共3页
以硝酸铵、硝酸钠和水作溶剂,尿素为原料,热解合成氰脲酸,产率达60-65%,结晶洗水和母液可循环使用。
关键词 氰脲酸 综合法 合成
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制备分散松香胶的试验
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作者 于渭东 《纸和造纸》 1992年第2期23-24,共2页
分散松香胶是70年代国外发展起来的一种新型施胶剂。在我国已有一些成功的报道,但在推广及应用上仍不太广泛和理想。据我们了解,其主要原因是乳化剂选择不太恰当,熬制工艺不尽合理,设备配套及选用上也存在一些问题,因此造成熬制成本较高... 分散松香胶是70年代国外发展起来的一种新型施胶剂。在我国已有一些成功的报道,但在推广及应用上仍不太广泛和理想。据我们了解,其主要原因是乳化剂选择不太恰当,熬制工艺不尽合理,设备配套及选用上也存在一些问题,因此造成熬制成本较高,稳定性较差,缺乏与普通松香胶竞争的能力。我厂近几年来对分散松香胶的乳化剂(分散剂)选择及熬制工艺条件进行了摸索和试验。 展开更多
关键词 分散松香胶 造纸助剂 施胶剂
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The capacity and mechanisms of various oxidants on regulating the redox function of ZVI 被引量:2
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作者 Siqi Zou Qun Chen +4 位作者 Yang Liu Yuting Pan Gang Yao Zhicheng Pan Bo Lai 《Chinese Chemical Letters》 CSCD 2021年第6期2066-2072,共7页
It is well known that zero-valent iron(ZVI)could catalyze the oxidation of various oxidants to realize the rapid oxidation removal of pollutants.However,in this study,we found that the addition of different oxidants c... It is well known that zero-valent iron(ZVI)could catalyze the oxidation of various oxidants to realize the rapid oxidation removal of pollutants.However,in this study,we found that the addition of different oxidants could regulate the redox function of ZVI system.In three different co-treatment systems,the effects of different oxidizers(peroxymonosulfate(PMS),persulfate(PDS),hydrogen peroxide(H_(2)O_(2)))dosages on the ratios of oxidative degradation rate and reductive degradation rate of p-nitrophenol(PNP)were studied.The effect of the H+released from oxidizers and the generated reactive oxygen species(ROS)in ZVI/PMS,ZVI/PDS,ZVI/H_(2)O_(2)systems were detailed discussed.Especially,the contribution of generated ROS for reductive degradation of PNP was quantified in the ZVI/H_(2)O_(2)system.Based on the results of TOC removal,UV-vis absorption spectra,and intermediates concentration curves,it was found that the degradation of PNP changed from reduction to oxidation with the increase of oxidant proportion.When the molar ratio of ZVI to oxidizer equal to 100,PNP was mainly degraded by reduction accompanied by slight oxidation.Combined with the results of SEM-EDS and XPS,it was confirmed that the enhanced degradation of PNP under the addition of oxidant was mainly related to the generated ROS,the additional H+,and the corrosion products of ZVI. 展开更多
关键词 Zero-valent iron Oxidizer Redox MECHANISMS P-NITROPHENOL
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