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海蜇生产加工中脱铝技术的研究 被引量:4
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作者 陈建文 李学渊 +4 位作者 秦鹏 王海萍 马霞 尹峰 王庆梅 《食品安全质量检测学报》 CAS 2016年第4期1681-1685,共5页
目的研究海蜇生产加工中柠檬酸脱铝技术。方法分别研究海蜇半成品的加入量、浸泡液的温度、柠檬酸的加入量、浸泡时间等因素对脱铝效果的影响。结果在室温条件下,以(5~7):10(W:V)半成品海蜇加入量放入柠檬酸(pH 4.1)浸泡液中,... 目的研究海蜇生产加工中柠檬酸脱铝技术。方法分别研究海蜇半成品的加入量、浸泡液的温度、柠檬酸的加入量、浸泡时间等因素对脱铝效果的影响。结果在室温条件下,以(5~7):10(W:V)半成品海蜇加入量放入柠檬酸(pH 4.1)浸泡液中,不停搅拌下浸泡30 min后,可将海蜇中铝残留降低至500 mg/kg以下,并能保持海蜇应有的传统口感。结论在即食海蜇生产加工中,该脱铝技术能在一定程度上满足现阶段海蜇产业发展的需要。 展开更多
关键词 海蜇 柠檬酸 残留 脱铝工艺
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丝光沸石酸脱铝及吸附性能研究 被引量:3
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作者 杨世栋 孟长功 《辽宁化工》 CAS 2004年第3期125-126,155,共3页
对丝光沸石直接酸脱铝进行了研究。考察了盐酸和草酸分别作用于丝光沸石的脱铝效果。通过N2 吸附等温线的测定 ,考察了脱铝丝光沸石的吸附性能。实验结果表明 ,酸处理可以明显提高丝光沸石的Si/Al比 ,草酸的脱铝效果更好 。
关键词 丝光沸石 吸附性能 脱铝工艺 盐酸 草酸 结晶度 酸处理 分子筛
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重铬酸钠生产过程中铬酸钠碱性液中和去铝工艺研究 被引量:1
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作者 严峻 梁群环 杨玉清 《内蒙古石油化工》 1996年第A08期3-5,共3页
重铬酸钠生产过程中铬酸钠碱性液中和去铝工艺研究严峻,梁群环,杨玉清(内蒙古黄河皮革化工总厂)1概述铬酸钠碱性液中含有不定量的铝酸钠、游离碱及微量硅酸钠等杂质,其典型组合如下:铬酸钠(以Na2Cr2O7·2H2O计... 重铬酸钠生产过程中铬酸钠碱性液中和去铝工艺研究严峻,梁群环,杨玉清(内蒙古黄河皮革化工总厂)1概述铬酸钠碱性液中含有不定量的铝酸钠、游离碱及微量硅酸钠等杂质,其典型组合如下:铬酸钠(以Na2Cr2O7·2H2O计)280-350g/l铝酸钠(以Al2... 展开更多
关键词 铬酸钠 铬酸钠 碱性液 脱铝工艺 生产过程
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Removal of AlN from secondary aluminum dross by pyrometallurgical treatment 被引量:12
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作者 WANG Jian-hui ZHONG Ye-qing +2 位作者 TONG Yue XU Xun-lin LIN Gao-yong 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第2期386-397,共12页
A new process of AlN removal from secondary aluminum dross(SAD)by pyrometallurgical treatment with added cryolite was applied for solving the problem of recycling the secondary aluminum dross.The response surface meth... A new process of AlN removal from secondary aluminum dross(SAD)by pyrometallurgical treatment with added cryolite was applied for solving the problem of recycling the secondary aluminum dross.The response surface methodology(RSM)was used to design experiments and optimize parameters.The results show that adding the appropriate amount of cryolite can effectively promote the oxidation of AlN in the SAD,and too much cryolite will reduce the promotion effect.The effects of roasting temperature and cryolite on the denitrification rate are the most significant(p<0.0001)followed by holding time.Predicted values of the denitrification rate are found to be in good agreement with experimental values(R^(2)=0.9894 and R_(adj)^(2)=0.9775),which confirms the validity of the model employed.The optimum conditions of roasting temperature of 750°C,holding time of 194 min,mass fraction of cryolite of 17.7%are obtained according to the quadratic model.Under these conditions,the maximum actual denitrification rate reaches 94.71%and the AlN content in the SAD is only 0.55 wt%.The unfired brick with compressive strength of 18.62 MPa(GB/T 2542−2012)was prepared based on the roasted SAD. 展开更多
关键词 secondary aluminum dross(SAD) ALN pyrometallurgy treatment denitrification rate response surface methodology(RSM)
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Influence of silicate anions structure on desilication in silicate-bearing sodium aluminate solution 被引量:4
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作者 刘桂华 张闻 +3 位作者 齐天贵 彭志宏 周秋生 李小斌 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第7期1569-1575,共7页
The structural changes of silicate anions in the desilication process with the addition of calcium hydrate alumino-carbonate were studied by measuring Raman spectra, infrared spectra and corresponding second derivativ... The structural changes of silicate anions in the desilication process with the addition of calcium hydrate alumino-carbonate were studied by measuring Raman spectra, infrared spectra and corresponding second derivative spectra. The results show that the desilication ratio in the solution prepared by the addition of sodium silicate(solution-SS) is much greater than that in the solution by the addition of green liquor(solution-GL), and low alumina concentration in the sodium aluminate solutions facilitates the desilication process. It is also shown that alumino-silicate anions in the solution-GL, and Q^3 polymeric silicate anions in solution-SS are predominant, respectively. In addition, increasing the concentration of silica favors respectively the formation of the alumino-silicate or the Q^3 silicate anions in the solution-GL or the solution-SS. Therefore, it can be inferred that the low desilication ratio in the silicate-bearing aluminate solution is mainly attributed to the existence of alumino-silicate anions. 展开更多
关键词 DESILICATION silicate anion STRUCTURE sodium aluminate solution second derivative spectrum oflR
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