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61, The results of TPR indicated that metal sulfides were the hydrogenation centers, after presulfiding the acid strength of catalyst increased, but the total acid quantity reduced.

62, The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization. In giving olefins and alky aromatics the hydrogenation improves the product quality.

63, A lube oil hydrogenation catalyst and its preparation are disclosed.

64, Sevoflurane is synthesized from aceton by vapor phase catalytic fluorination, vapor phase catalytic hydrogenation, chloridization and fluoromethylation, which gives a new synthetic method.

65, The necessity of C_3 hydrogenation unit existence in front depropanizer front hydrogenation flow of ethylene plant is studied and fully discussed.

66, In this paper, gas phase catalytic hydrogenation technology to the preparation ofm-toluidine from m-nitrotoluene was studied.

67, The catalytic performance was evaluated during the selective hydrogenation of acetylene to ethylene. The properties of alloy were characterized by TEM and TPD.

68, Abstract: Application status and trends in hydrodesulfurization ( HDS ) and olefine hydrogenation catalysts are reviewed.

69, The invention is characterized on short process flow, simple operation, etc, therefore, we can use the present ceresin wax hydrogenation devices to produce refining microcrystalline wax.

70, A magnetically stabilized bed reactor with amorphous NiREP alloy catalyst was used for the hydrogenation of light reformate to produce reformulated gasoline(RFG).

71, Catalyst and method for preparing 1, 5 pentanediol by hydrogenation of 1,(http://sentencedict.com/hydrogenation.html) 5 dimethyl glutarate.

72, The resins of Shengli vacuum residue were blent with saturates, aromatics from Shengli vacuum residue and paraffin from SSOT hydrogenation residue.

73, In furfural alcohol production the liquid-phase hydrogenation process is being replaced by the gas-phase hydrogenation in many foreign countries.

74, A highly active copper catalyst for synthesis of o-(p-)toluidine via vapor-phase catalytic hydrogenation was prepared.

75, Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.

76, However, the direct process, cracking method and hydrogenation of chlorosilanes were valuable because of less cost, high yield and convenience of continuous manufacturing.

77, The effects of the organic impurities such as formaldehyde, methanol and lower alcohols on the hydrogenation of2 - butynediol are studied.

78, Application status and trends in hydrodesulfurization ( HDS ) and olefine hydrogenation catalysts are reviewed.

79, Based on vacuum residual oil hydrodesulfurization plant of some refinery, simulates and optimizes typical hydrogenation plant.

80, Current quotation process for hydrogenation reactor has been analyzed and the main affecting factor is the weight of pipe flange and the internals of the reactor.

81, In this article, the recent application in recent years of metal complexes composed of binaphthyl derivatives in asymmetric hydrogenation of prochiral alkenes, ketones and imines are reviewed.

82, The Oxenin hydrogenation reaction in low temperature and high hydrogen pressure favors the improvement of the reaction selectivity.

83, When non-noble metal catalysts are selected for selective hydrogenation of diolefin, full-range FCC gasoline hydrogenation process is preferred.

84, Chiral carbonyl iron systems have seldom been used in asymmetric transfer hydrogenation of aromatic ketones.

85, The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.

86, The causes for deactivation of the catalysts for liquid-phase hydrogenation of furfural to furfurol were investigated by means of XRF, XRD and SEM.

87, Moreover, catalytic hydrogenation can be used to the reduction of a variety of organic compounds, such as nitro, carbonyl, amino, aromatic and heteroaromatic compound, hydroxy group and carboxy group.

88, The article introduces the development procedure of butylene dimerization hydrogenation techniques by which producing alkylates and their development situation home and abroad in recent years.

89, Methods: Second - hydrogenation, distillation under high vacuum, recrystallization, hydrolyze - tion under acid condition, and oxidation.

90, Several kinds of ruthenium - catalyzed organic reactions were reviewed: hydrogenation, oxidation, isomerization, metathesis.