Compared with the open ladle treatment technique,nodularizing in the Tundish covered ladle has following advantages:elemination of fume and glare,high magnesium recovery(> 60 %),the nodularizing alloy expense being reduced by 30 %,temperature drop of molten iron being reduced by 40 %,quantity of oxide slag being reduced by 50 %,quality stability and reliability being improved.

Extraction of the volatile oil of Virgate Wormwood herb and preparation of β-cyclodextrin inclusion compound of Hugan granules;

Extraction of volatile oil of Rose banksiae in Jiuxiang Zhixie enteric tablets and study of inclusion process

Extraction of the Volatile Oil and Preparation ofβ-cyclodextrin Inclusion Compound of Yulianzhixie Pill

To study optimum inclusion process condition for volatile oils from Aralia Continentalis Kitag and heat stability,the ratio of the oil in inclusion compounds was used as criteria in the experiment,and the optimal process condition was given with the L_9(3~4)orthogonal experiment,meanwhile,the stability was tested at 60℃ in an oven.

Objective: To study optimum inclusion process conditions for volatile oils from Herba Schizonepetae and Pericarpium Citri Reticulatae Methods : The grinding method was compared with the saturated water solution method by determining the ultilization ratio of volatile oil from both herbs.

An index,based on the yield of inclusion and the utilization ratio of atractylon,was proposed to select an appropriate inclusion process.

Briefly presents the main contents of the basic process package design for one-step DME production with synthesis gas,emphasizing on the new process,i.

This article presents the development of domestic process package for ammonia production with natural gas It holds that the subject ends the history that ammonia plant process package must be imported from foreign engineering companies This will make new contribution to the development of Chinas fertilizer industr