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钛白副产绿矾综合利用的研究 总被引:2,自引:0,他引:2
以钛白厂废弃物绿矾为原料,加碳酸氢铵和氯化钾,通过小试及连续化模拟试验,制取硫钾、氯化铵和氧化铁红。原料综合利用好,经济效益明显。 相似文献
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罗布泊卤水中提取钾盐的研究 总被引:3,自引:0,他引:3
文章以罗布泊北部卤水为研究对象,依据不同温度下的Na^ ,K^ ,Mg^2 ∥Cl^-,SO4^2--- H2O体系相图进行分析研究,提出生产氯化钾和硫酸钾的原则性工艺流程。为开发利用罗布泊北部卤水提供了理论依据。 相似文献
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文章以罗布泊北部卤水为研究对象 ,依据不同温度下的Na+,K+,Mg2 +/ /Cl-,SO2 -4—H2 O体系相图进行分析研究 ,提出生产氯化钾和硫酸钾的原则性工艺流程。为开发利用罗布泊北部卤水提供了理论依据。 相似文献
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Cl^—对以KCl为原料转化法制K2SO4新工艺过程影响的研究 总被引:1,自引:1,他引:1
本文研究了Cl^-对以KCl为原料转化法制K2SO4新工艺过程的影响,确定了硫酸铵浓度,配料比,反应时间,反应温度各因素对产品K2SO4中Cl^-量高低的影响。 相似文献
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本文使用 达木盆地察尔汗钾肥厂生产的氯化钾和盐湖天然无水芒硝为原料二步转化法制备硫酸钾时,氯化钾原料中氯化钠和无水芒硝中的水不溶物对所产硫酸钾产品的质量和钾的回收率的影响进行了试验研究。 相似文献
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本文利用Na2CO3-NaHCO3-Na2SO4(NaCl)-H2O体系相图对内蒙古合同查汉淖尔碱湖卤水碳化法生产小苏打进行了相图计算,并对计算结果进行了讨论。 相似文献
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本文对马尾松磨木浆(SGW)进行了单段H2O2漂白和两段H2O2漂白试验,确定了H2O2漂白的最佳工艺参数。当采用两段H2O2漂白时,纸浆白度可由原浆的47.8%提高到74.5%,从而使制得的漂白果能满足低定量高白度胶印新闻纸和其它高级纸种的生产要求。 相似文献
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JA Wurzbacher C Gebald N Piatkowski A Steinfeld 《Environmental science & technology》2012,46(16):9191-9198
A temperature-vacuum swing (TVS) cyclic process is applied to an amine-functionalized nanofibrilated cellulose sorbent to concurrently extract CO(2) and water vapor from ambient air. The promoting effect of the relative humidity on the CO(2) capture capacity and on the amount of coadsorbed water is quantified. The measured specific CO(2) capacities range from 0.32 to 0.65 mmol/g, and the corresponding specific H(2)O capacities range from 0.87 to 4.76 mmol/g for adsorption temperatures varying between 10 and 30 °C and relative humidities varying between 20 and 80%. Desorption of CO(2) is achieved at 95 °C and 50 mbar(abs) without dilution by a purge gas, yielding a purity exceeding 94.4%. Sorbent stability and a closed mass balance for both H(2)O and CO(2) are demonstrated for ten consecutive adsorption-desorption cycles. The specific energy requirements of the TVS process based on the measured H(2)O and CO(2) capacities are estimated to be 12.5 kJ/mol(CO2) of mechanical (pumping) work and between 493 and 640 kJ/mol(CO2) of heat at below 100 °C, depending on the air relative humidity. For a targeted CO(2) capacity of 2 mmol/g, the heat requirement would be reduced to between 272 and 530 kJ/mol(CO2), depending strongly on the amount of coadsorbed water. 相似文献
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Ding Haomiao Zhang Yuzhe Zha Yue Zhou Sijia Cao Chaoqing Zhu Huajian Xu Feng Zhang Xiuqiang Wang Caisheng 《Food science and biotechnology》2022,31(13):1741-1751
Food Science and Biotechnology - The cytoprotective and potential molecular mechanisms of Hylocereus polyrhizus protein (RFPP) were investigated on the hydrogen peroxide (H2O2)-triggered damage in... 相似文献