摘要:
An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight calculated on the dry weight of the bauxite of a novel hydrogarnet catalyst.
摘要:
An odor eliminating system utilizes an air pump to remove odors from a bowl of a toilet to a trap of the toilet. By moving the odors to the trap, the odors cannot escape back to the bowl and can only proceed out of the toilet to the sewer. The system can be adapted to existing toilets by drilling a channel to the trap or the system can be incorporated into new toilets.
摘要:
Subject of the invention is a process for the production of steels having low carbon content wherein oxygen is blowing under vacuum, the carbon end point and blow temperature are controlled, the tapping of the steels is followed by slag skimming, heating, refining under vacuum, then finishing and casting, where the oxygen is admitted into the melt through blow lance, the units of the system are water cooled and the generating flue gases are discharged from the system. According to the process of the invention the melt is flushed over with argon from underneath during the admission of the oxygen from the top through the blow lance; the composition, temperature and quantity of the emerging flue gases, as well as the temperature and quantity of the admitted and discharged cooling water are continuously measured, the argon intensity is controlled accordingly and the manipulations and technological steps are carried out according to the obtained measuring results.
摘要:
An odor eliminating system utilizes an air pump to remove odors from a bowl of a toilet to a trap of the toilet. By moving the odors to the trap, the odors cannot escape back to the bowl and can only proceed out of the toilet to the sewer. The system can be adapted to existing toilets by drilling a channel to the trap or the system can be incorporated into new toilets.