43results about How to "Simple control conditions" patented technology

The present invention discloses a process method for preparing synthesis gas by using a zero carbon or negative carbon emission system. The process method comprises that: 1) first raw material gas is subjected to desulfurization, steam is matched, pressurization and heating are performed, a reaction is performed to obtain first conversion gas, the first conversion gas is output, the output first conversion gas and pure oxygen are mixed and then enter a two-stage furnace to react so as to obtain second conversion gas, and the second conversion gas is output from the two-stage furnace; 2) second raw material gas is subjected to desulfurization, pressurization and heating and then is mixed with pure oxygen and carbon dioxide, then a reforming reaction is performed to obtain third conversion gas, and the third conversion gas is output from the reforming reactor; and 3) the second conversion gas is subjected to heat recovery and then is mixed with the third conversion gas to form crude synthesis gas, wherein the crude synthesis gas is adopted as the subsequent synthesis gas with or without a decarbonization device. According to the present invention, the greenhouse gas emission is reduced, the carbon efficiency is improved, the recycling of the carbon resources of the energy source chemicals is achieved, the hydrogen-carbon ratio of the synthesis gas achieves the ideal ratio of the downstream process requirement, and the zero carbon or negative carbon emission of the whole system is achieved.

In the present invention, a Tremella fuciformis strain (Tremella fuciformis) was screened out, the strain name is XY, and it was deposited in the General Microbiology Center of the China Microbiological Culture Collection Management Committee. The preservation date is April 25, 2019, and the preservation number is CGMCC No.17675. The present invention also provides the application of the above Tremella fungus strains in the production of Tremella polysaccharides, the main process of which is to insert the seed liquid prepared from CGMCC No. 17675 into a solid-state fermentation medium for fermentation to obtain a fermentation liquid. It can prepare high-molecular-weight polysaccharides with a molecular weight of 1000-1500kDa and low-molecular-weight polysaccharides with a molecular weight of 100-300kDa. The total output can reach 15-25g / L, and the protein content is less than 0.3%. Compared with the liquid fermentation method, it has a significant cost advantage. Tremella It has a good application prospect in the industrial production of polysaccharides.

The invention discloses a method for promoting separation of valuable metals and calcic gangue minerals in waste residue. The method comprises the following steps of: based on calcic waste residue as a treatment object, first, generating anhydrous calcium sulfate crystals by calcic gangue minerals in waste residue through hydrothermal activation; then, through hydrating and crystallizing regulation, hydrating anhydrous calcium sulfate crystals to calcium sulphate dihydrate crystals and enabling the calcium sulphate dihydrate crystals to grow to hundreds of microns; and then, separating the crystals and other substances by a physical separating method. The hydrothermal activating technology comprises the following steps of: adding an additive; and controlling hydrothermal temperature, hydrothermal time, stirring speed and liquid-solid ratio. The hydrating regulation technology comprises the following steps of: adding an excitant, controlling hydrating time, adding crystal seeds, controlling aging time and the like. According to the method provided by the invention, calcium and other valuable metals in waste residue can be recycled at the same time, so that the method is beneficial to realizing reduction, harmlessness and reclamation of waste residue.

The invention relates to an aluminum nitride ceramic plate metalization method, which comprises the following steps of cleaning the surface of an aluminum nitride ceramic plate; forming a titanium conduction layer with the set thickness on the surface of the aluminum nitride ceramic plate; using the aluminum nitride ceramic plate subjected to titanium plating on the surface as a cathode; putting the aluminum nitride ceramic plate into an electrolytic bath; using refined copper as an anode; putting the aluminum nitride ceramic plate into a heat treatment furnace; then, performing heating and temperature rise; seeping the titanium conducting layer to the aluminum nitride to form a TiN metallurgical transition layer and simple substance aluminum; continuously performing heating and temperature rise; sending ultrasonic waves to the aluminum nitride ceramic plate through a ultrasonic wave generating device, so that the liquid-state simple substance aluminum vibrates and flows out; stabilizing the TiN metallurgical transition layer; performing further heating and temperature rise; seeping the titanium conducting layer to the copper plating layer to form a TiCu metallurgical transition layer. Compared with the prior art, the method provided by the invention has the advantages that the liquid-state simple substance aluminum in the TiN metallurgical transition layer vibrates, so that the liquid-state simple substance aluminum melts and is discharged out of the aluminum nitride ceramic plate; the connection intensity of the copper plating layer and the titanium conducting layer is improved; the product quality and the finished product rate are improved.

The invention relates to a technology for high-efficiently recycling soldering tin of discarded printed circuit boards, and a device. In a sealed system, in which liquid heat conducting medium exists, discarded printed circuit boards to be processed and welded with electronic parts are put in a swivel which is provided with a plurality of filtering holes and immersed in the heat conducting medium, the temperature is risen until the soldering tin is melted, after the temperature is constant, the swivel is rotated to centrifugally separate solid and liquid, the soldering tin leaks from the filtering holes, deposits at the bottom and is cooled into ingot, and the electronic parts are separated from the discarded printed circuit boards correspondingly. The method for recycling the soldering tin of discarded printed circuit boards has no environmental pollution, low energy consumption and high efficiency, and can create good condition for high-efficiently recycling other metals.