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2022年5月10日,中国石油和化学工业联合会组织召开了“离子液体法工业用氨吸收与循环利用绿色新技术”科技成果鉴定会。该技术创新性强,拥有自主知识产权,处于国际领先水平;经济和环境效益突出,符合国家节能环保产业政策,可推广相关行业的工业含氨气体处理和回收利用。 相似文献
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目前使用硼酸盐添加剂调配成的润滑剂已在许多工业部门润滑机械上广泛应用,其应用范围尚在不断扩大,这主要是与它所具有的优良特性,即承载能力强、在极压负荷条件下可提供最大的磨损防护、在低粘度下有较高的极压性能、良好的热氧化安定性等分不开的。此外,这类润滑剂在高温下对铜金属无腐蚀性,动物生理试验证实对人体无毒性,也没有令人不快的气味。硼酸盐添加剂制备的润滑油通常由基础油、极压剂、抗腐剂和分散剂等组成。其中的极压剂为水合硼酸盐类添加剂(K_2O·mB_2O_3·nH_2O,式中 m=1—2,n=1—4的整数或分数),其粒度要求在0.5—1μm 之间,使之能稳定地分散于油中,在制备这类润滑剂时,通常是先把硼酸盐水溶液和原料油等在反应器内充分混合以生成微乳化硼酸盐溶液,经加温使其部分脱水、乳化生成稳定的硼酸盐微粒分散体,以作极压添加剂用。 相似文献
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概述了那诺过滤膜的结构,过滤原理及特性,并对所开发的三代膜进行了试验,对比,结果表明,第三代膜过滤面积增加,压降小,除硫能力更强,在低温下运行,展现出良好的特性,本文对硫设备的维护也作了较详细的介绍。 相似文献
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离子色谱法测定大气中氨及低级脂肪胺 总被引:3,自引:0,他引:3
采用草酸处理过的玻璃纤维滤膜来采集大气中的氨及低级脂肪胺,超声浸取后,注入离子色谱仪分析。用本方法测定大气中的氨及低级脂肪胺,当采样体积为2.4m3时,其中氨与三甲胺的最低检出限分别为2×10-4mg/m3和2×10-3mg/m3。 相似文献
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化肥厂污水中的钙离子含量测定没有合适的分析方法,本文借鉴天然水中钙离子含量分析的有关内容,确定了污水中钙离子含量的测定方法。 相似文献
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Abstract The phase diagram was determined for the ternary system diethylenetriamine trinitrate/ethylenediamine dinitrate/ammonium nitrate with 15 wt% potassium nitrate (DETN/EDD/AK15). The eutectic mixture (DEAK), containing 40, 35, and 25 wt% AK15, DETN, and EDD respectively, was subjected to small-scale sensitivity and performance tests. The measured PCJ (223 kbar) from a 4.13-cm-diam, unconfined rate-stick test of the DEAK system agrees with Kamlet-Short-Method (KSM) data calculated at the same pressed density [97.7% of theoretical maximum density (TMD)]. A rate-stick test of EAK at the same charge diameter and pressed density failed, indicating that the addition of the DETN component to the EAK system has reduced the critical diameter of EAK. 相似文献
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El?bieta Rytel 《Food Control》2012,25(1):349-354
The aim of this experiment was the determination of glycoalkaloid and nitrate content in potatoes during stages of processing into dry potato dice.Samples obtained from the tubers of three potato varieties were used: a very early Denar variety of Polish origin; Innovator, an early Dutch variety; and a Polish medium early Pasat variety. There were sampled three times from the factory store in 2009 and 2010. The potatoes were diced in laboratory conditions, by first peeling with a carborundum peeler, dicing into 10 × 10 × 10 mm pieces and rinsing with water at a temperature of 20 °C. In the next stages, the diced potatoes were blanched in water at a temperature of 75 °C for 5 min then dried in a laboratory drier for 1 h at 120 °C. After 1 h of drying, the temperature was lowered to 55-60 °C in order to obtain a defined final moisture content of 8-11%.In the raw material, intermediates and finished products, the concentrations of glycoalkaloids (α-chaconine and α-solanine) were determined using an HPLC method, and nitrates were determined colorimetrically using an RQflex analyser.It was found that the processes used in dried potato dice production significantly decreased concentrations of glycoalkaloids (α-chaconine and α-solanine) in intermediate and finished products when compared to raw material. The highest decrease in the quantity of glycoalkaloids occurred during peeling (33%) and after blanching (17%) of peeled potato. Nitrate content fell the most after cutting and rinsing with water (13%), and after blanching (23%). On average, dry potato dice contained 44% of the initial quantity of glycoalkaloids and 40% nitrate content in the final dried product. 相似文献
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边国柱 《石油地球物理勘探》1983,18(4):379-382
倾角扫描的间隔过大,对地震信息的叠加效果的影响是不能忽略的。理论计算表明,利用倾角扫描得出的倾角与设计的倾角仅相差1ms/CDP,其层速度的误差却达到了12%。减小扫描间隔或用隔道扫描的办法,可以提高倾角扫描的精度。 相似文献
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通过大量的试验,经过理论论证和数据对比得出造成复混肥料中氧化钾含量测定误差的因素,指出新国标对旧国标的改进及旧国标产生误差的因素和新国标争议点的正确操作方法。 相似文献