40results about How to "Good liquefaction effect" patented technology

The present invention is a preparation process of solution magnesium source. The said preparation process includes: adding solid magnesiumocene and dimethyl magnesiumocene to an organic solvent of 110 deg.C boiling point and stirring for homogeneity; dropping over C9 alkane, over C9 tertiary amine or aromatic aldehyde or aromatic ketone, over C5 primary amine or aliphatic aldehyde or Schiff base formed by ketone and primary amine; further heating while stirring; and decompression distilling to eliminate solvent to obtain solution magnesium source. The said solvent has excellent solid magnesiumocene and dimethyl magnesiumocene liquefying capacity and one portion of the solvent can liquefy three or more portions of magnesiumocene and dimethyl magnesiumocene completely.

A refrigerant recovery device comprises a compressor 1 which draws in chlorofluorocarbons gas. Chlorofluorocarbons gas that has increased pressure and temperature by being discharged from the compressor 1 is conducted through a heat exchange device 2 to become liquid refrigerant. The liquid refrigerant is conducted by a liquid pipe 13 to a refrigerant recovery tank 7. Gas of the refrigerant inside the refrigerant recovery tank 7 is conducted to the compressor 1 by a gas pipe 21. The heat exchange device 2 comprises the first helical piping 3 formed by winding a small diameter heat transfer pipe, a large diameter tube 5 with a cross-sectional area larger than the previous heat transfer pipe and the second helical, small-diameter piping 4 with a structure similar to the first helical small-diameter piping 3, these elements being connected in serial as a single unit, or alternatively the heat exchange device comprises two or more single units connected together. The liquid pipe 13 comprises a solenoid valve 6 that is controlled by a pressure sensor 14 to open at a preset upper value and to close at a preset lower value. The gas pipe 12 comprises a solenoid valve 22 that is controlled by a pressure sensor 24 to open at a preset upper value and to close at a preset lower value. The present invention provides a refrigerant recovery device that is cheap, compact and is portable and easy to operate for inexpensively recovering chlorofluorocarbons.

The invention relates to a method for producing liquefied products by crushed small-diameter bamboo materials and bamboo material processing residues under the simultaneous effect of phenolic alcohol compounds. The invention has a purpose that a better liquefying effect can be obtained by various chemical ingredients in the bamboo materials by the provided method, in addition, the reaction temperature is lower, the reaction pressure is lower, and the safety is higher. The method has the technical scheme that a production method of bamboo phenolic alcohol liquefied products comprises the following steps that: 1) firstly, small-diameter bamboo or/and bamboo material processing residues are crushed to 20 to 80 meshes and are baked until the moisture content is lower than 10 percent for standby; 2) 100 mass parts of bamboo powder, 50 to 75 mass parts of phenol, 50 to 75 mass parts of polyethylene glycol and 15 to 30 mass parts of acid catalysts are added into a reaction container, the normal-pressure reaction lasts 30 to 90 minutes, the reaction temperature is 110 DEG C to 170 DEG C, the temperature is reduced to the room temperature after the reaction completion, and 15 to 30 mass parts of caustic soda solution is added for neutralization to obtain the bamboo material liquefied products.

The invention discloses a flue gas treatment system and treatment method for a PVC glove production workshop, and belongs to the field of glove production equipment. The system and method are characterized in that a spraying device for carrying out spraying cooling on gloves on a glove die (3) is arranged above a glove die line and is connected with a circulation water supply device; a smoke recycling treatment system is further included and comprises a smoke liquefying device, an oil and water separating device and a heat exchange device; an inlet of the smoke liquefying device is communicated with the workshop through a chimney (18); and a mixed liquid outlet of the smoke liquefying device is communicated with a mixed liquid inlet of the oil and water separating device, and a water outlet of the oil and water separating device is communicated with the smoke liquefying device. According to the flue gas treatment system for the PVC glove production workshop, self-cleaning stable running all year around can be achieved, power consumption is low, organic components in smoke exhausted from the workshop can be recycled in a liquefied manner through the treatment method, the recycling effect is good, and raw material consumption is low.

The invention relates to a preparation method of maltose powdered sugar with high maltose content. The method comprises the steps of pretreatment, acid enzyme liquefaction, impurity removal, saccharification and refining, indica rice with poor eating quality is used as a raw material to produce maltose, and fungus alpha-amylase, pullulanase and maltotriase are added during saccharification for synergistic effect; the saccharification reaction is performed for a period of time, dextranase is added for a hydrolysis reaction, and enzyme deactivation is performed to obtain saccharification liquid; by controlling the conditions such as a liquefied DE value and the addition amount of various enzymes, the production cost can be reduced while starch is catalyzed to be degraded to generate maltose, and better conditions are provided for maltose formation in the subsequent saccharification step; and the dextranase deeply catalyzes and hydrolyzes glucan into glucose or oligosaccharide, non-maltose parts are removed during refining, the purity of maltose is further improved, the filterability of maltose sugar products is improved, and the viscosity is reduced. The maltose sugar powder with the maltose content being 90% or above can be prepared through the method of the invention, and the application prospect in the sugar product field is considerable.

The invention relates to a device and method for preparing starch sugar for high-temperature corn drying. The method comprises the following steps: increasing the input concentration of coarse starchmilk which is processed from corn, separating the coarse starch milk through a disk type separator to obtain starch milk with reduced content of gluten water and modified starch; liquifying and separating the starch milk to obtain a starch milk light phase; saccharifying the starch milk light phase, performing protein flocculation on the saccharified liquid, and performing post-treatment to obtainthe starch sugar. According to the method, the content of modified starch in starch milk can be reduced, the liquifying and saccharifying effect can be greatly improved, and the integral production effect is remarkably promoted.

The invention relates to the field of heavy metal sewage treatment and reutilization devices, in particular to a heavy metal sewage treatment and reutilization device. The device comprises an evaporation structure, a discharging structure, an atomization structure, a cooling structure, a first cleaning structure and a second cleaning structure, wherein the cooling structure is connected to the evaporation structure to convert kinetic energy of vaporization of the evaporation structure into kinetic energy of the cooling structure, meanwhile, the cooling structure absorbs waste heat while liquefying vaporized sewage so as to preheat sewage not subjected to evaporation treatment, the later evaporation vaporization efficiency of the sewage is higher, the utilization efficiency of the waste heat is improved greatly, meanwhile, the liquefying effect of vaporized sewage is better, the second cleaning structure is driven by vapor to rotate in the evaporation structure, bonding of heavy metal particles to the inner side wall of the evaporation structure is avoided, and the evaporation and heat exchange effects are better; and by arrangement of the first cleaning structure, the heavy metal particles can be effectively prevented from entering the cooling structure, and the treatment quality of the heavy metal particles is improved.

The invention provides main grid silver paste for a silicon solar cell and a preparation method of the main grid silver paste, the main grid silver paste for the silicon solar cell has good auxiliary grid matching capability and high main grid line stripping strength, the main grid silver paste for the silicon solar cell comprises silver powder, glass powder and an organic carrier, and the total weight of the main grid silver paste for the silicon solar cell is 100%. The silver paste comprises the following components in percentage by weight: 80.0%-90.0% of silver powder; 0.3%-2.0% of glass powder; and 8.0%-15.0% of an organic carrier. The main grid silver paste for the silicon solar cell can be well matched with step-by-step printing of different types of cell pieces and can also be matched with different types of auxiliary grid silver paste, after matching, the opening voltage is high, the photoelectric conversion efficiency is high, the main grid peeling strength is high, and the service life is long. And the requirements of the current different types of sizing agents and battery pieces for printing the main grid sizing agents step by step can be well met.