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不饱和脂肪酸氢化催化剂的研究 被引量:3
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作者 祝洪杰 郭清华 +1 位作者 贺红军 安立敦 《烟台大学学报(自然科学与工程版)》 CAS 2003年第3期190-194,共5页
以氧化铝、硅藻土为载体,以氧化镍或甲酸镍为活性组分前体,采用沉淀法,以不同工艺制备了负载型镍催化剂,研究了制备过程中催化剂活性组分前体、抗皂化助剂对催化剂的活性和抗皂化性能的影响.研究表明:以氧化镍为活性组分前体要优于甲酸... 以氧化铝、硅藻土为载体,以氧化镍或甲酸镍为活性组分前体,采用沉淀法,以不同工艺制备了负载型镍催化剂,研究了制备过程中催化剂活性组分前体、抗皂化助剂对催化剂的活性和抗皂化性能的影响.研究表明:以氧化镍为活性组分前体要优于甲酸镍,加入一定量的抗皂化组分,可以提高催化剂的活性和抗皂化性能. 展开更多
关键词 不饱和脂肪酸 加氢 氢化催化剂 负载型镍催化剂 催化活性 抗皂化性能 沉淀法 制备工艺
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脂肪酸加氢改性Ni及Ni-Pd催化剂的制备 被引量:1
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作者 祝洪杰 韩金勇 安立敦 《化学研究与应用》 CAS CSCD 北大核心 2003年第4期579-580,共2页
Supported modified singlemetal Nicatalysts and binarymetal NiPdcatalysts were prepared by a precipitation method using diatemite and alumina as carriers and trace reactive metals as auxiliarys.They were eval... Supported modified singlemetal Nicatalysts and binarymetal NiPdcatalysts were prepared by a precipitation method using diatemite and alumina as carriers and trace reactive metals as auxiliarys.They were evaluated for hydrogenation of palmilic acid under the same reaction conditions.The results show that the activity and the resisting saponification of two catalysts are superior to that of USA140 and USA110 catalysts under the evatuated condions. 展开更多
关键词 脂肪酸 加氢改性 NI催化剂 Ni-Pd催化剂 制备 催化活性 抗皂化性能
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Analysis on the Oxidation Resistance of Jujube Saponin
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作者 Xiangqian ZHANG Xiao-long HE Jinbo ZHAO 《International Journal of Technology Management》 2015年第9期90-92,共3页
In this paper, saponins were extracted from Northern Shaanxi' s big jujubes using organic solvent method and also the oxidation resistance of the extractives was analyzed. In the experiment, the crude extractives of ... In this paper, saponins were extracted from Northern Shaanxi' s big jujubes using organic solvent method and also the oxidation resistance of the extractives was analyzed. In the experiment, the crude extractives of the saponins from jujubes were obtained using ethyl alcohol soaking method and Soxhlet extraction method and also qualitatively tested using 3 color reactions, and the test result was positive; the oxidation resistance of jujube saponins was analyzed through DPPH, hydroxyl radical scavenging experiment and reducibility measurement, and the results showed that the capability of jujube saponins in DPPH free radical scavenging was enhanced along with the improvement of the to- be-test material concentration, so saponins played a significant role on hydroxyl radical scavenging and possessed certain reducibility. Northern Shaanxi' s big jujubes are rich in saponins and possess excellent antioxidant ability that will be enhanced along with the increase of saponins content. Thus, a basis is provided for the effective extension of the jujube industry chain. 展开更多
关键词 Jujubes SAPONINS Oxidation Resistance
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