60results about How to "Small amplification effect" patented technology

The invention relates to a column tube type impinging stream reactor and an operating system for producing toluene diisocynate. The upper head of the column tube type impinging stream reactor is connected with a barrel body on which a barrel body feeding hole (4) is arranged, the column tubes pass through the barrel body and are evenly distributed on the upper tube-plate and the lower tube-plate in the barrel body, jet orifices (10) of the lower tube-plate are evenly distributed on the lower tube-plate; the lower end of the column tube is connected with an expanding section of the column tube; and the jet orifices (9) of the column tubes are arranged on the lower ends of the column tubes and the expanding sections of the column tubes. A stream of material is injected by the jet orifices (10) of the lower tube-plate in a jet current mode; around the jet orifices of the lower tube-plate, the column tubes and column tube expanding sections are arranged in parallel and are vertical to thelower tube-plate; the other stream of fluid is injected into an impinging mixed zone with a certain angle in a jet current mode by the jet orifices (9) of the column tubes arranged on the column tubes and the column tube expanding sections and is impacted with the first stream of material and then is quickly mixed; and the reaction material enters into a second reaction zone (12) for further reaction. The size of the impinging mixed zone can be flexibly changed by adjusting the structure parameters of the mixed zone, therefore, the reactor has strong adaptability.

The preparation method for phenolic resin modified by epoxy vegetable oil comprises: putting thephenol, formaldehyde and nontoxic acid catalyst into a reactor; controlling temperature and holding for 1-8h; cooling to room temperature to obtain the coarse phenolic resin; transferring the coarse product into vacuum distillation kettle to dewater for refine; adding the epoxy vegetable oil, phenolic resin and faintly-alkaline catalyst into the reactor; heating and holding; reacting till the specified range of gelling time; cooling and adding solvent and additive to obtain the target with wide application. This invention has well security and quality with low cost and high efficiency.

The invention discloses a method for synthesizing propylene by using methanol, for solving the problems that in the existing technique for preparing propylene by using methanol, the selectivity of propylene is low and cannot meet the requirement of industrial application and subsequent separation is very difficult. The method disclosed by the invention comprises the following steps of: preparing an intermediate mixture; synthesizing propylene; and separating propylene. According to the method for synthesizing propylene by using methanol, the raw material is a methanol aqueous solution. By the method disclosed by the invention, the problem that in the existing technique for preparing propylene by using methanol, the selectivity of propylene is low can be solved effectively, and therefore, the subsequent separation difficulty is reduced, the production cost is lowered and the economic efficiency of enterprises is improved.

The invention relates to a catalyzing distillation component and a method. The component includes catalyst particles, silk network container and regulated fillers, its character lies in: the catalyst particles and other inertial particles are blended together and filled into the container, and the mentioned silk network containers are arranged in the regulated fillers one by one. The invention favors the transition of media to liquid phase in the gas phase reaction. It can make the reacting bed with large gap rate, and the catalyst is distributed in the whole reaction segment evenly.

The invention relates to a method for directly preparing an HZSM-5 molecular sieve and molding the HZSM-5 molecular sieve. The method is characterized by comprising the following steps: by taking a silicon source, an aluminum source, HZSM-5 seed crystal and a template agent as raw materials, firstly, grinding the solid raw materials, sufficiently mixing, further adding the liquid raw materials, mixing, putting into a crystallization kettle for crystallization, washing and drying the obtained sample, and roasting, thereby obtaining the HZSM-5 molecular sieve. Mainly aiming to solve the problems that the conventional synthesis process route is relatively long, a relatively large amount of template agent is used, a relatively great amount of waste liquids are discharged, the properties of a molecular sieve can be affected by a molding process, the molding process is relatively long in route, and the like, the invention provides the method for preparing the HZSM-5 molecular sieve and molding the HZSM-5 molecular sieve; the method can be used for directly preparing the HZSM-5 and molding the HZSM-5, and is relatively short in preparation and molding process route, very small in waste liquid discharge, simple in crystallization mode and high in yield.