31results about How to "Reduce purification load" patented technology

The invention provides a multivalent group B meningococcal protein vaccine. The multivalent group B meningococcal protein vaccine is a multivalent combined vaccine comprising outer menbrane vesicle (OMV) proteins of group B meningococcus strain CMCC29356, strain CMCC29361, strain xrsw341215 having preservation number of CGMCC No.8982 and strain xrsw210902 having preservation number of CGMCC No.8981, and optionally comprises a medicinal excipient and / or an adjuvant. The multivalent group B meningococcal protein vaccine has wide cross protection antibody titers for prevention of group B epidemic cerebrospinal meningitis around the world, and has good cross protection effects on group A and group C epidemic cerebrospinal meningitis. The invention provides a whole production technology of the multivalent group B meningococcal protein vaccine. The production technology is suitable for large scale production. A research result shows that the multivalent group B meningococcal protein vaccine has good immunogenicity, reliable safety and stable immunization endurance.

Propylene glycol is produced by a method of producing propylene glycol, the method including: obtaining propylene glycol by performing catalytic hydrogenation of glycerol in the presence of a catalyst, the catalyst containing zinc oxide and at least one of copper and copper oxide, and the catalyst, after being reduced at 180° C. to 230° C. in the presence of hydrogen, showing a half width of from 0.4 to 1.1 of a peak having a peak top at a position at which a diffraction angle (2θ±0.2°) is 43.1° in an X-ray diffraction pattern obtained using CuKα as a radiation source.

The invention relates to a domestic garbage treatment method, a device and a mobile machinery shop, and aims to provide the domestic garbage treatment method to prevent generation of harmful substances to reduce environmental pollution. The domestic garbage treatment method comprises the garbage treatment steps of: drying-internal combustion cracking under a high-concentration oxygen environment-deacidification-filtration-secondary cracking-combustion; (a) drying: garbage is dried in a rotary drying kiln; (b) internal combustion cracking under high-concentration oxygen environment: the internal combustion cracking is performed for the garbage, dried by the rotary drying kiln, in an oxygen control cracking furnace under the high-concentration oxygen environment; (c) deacidification: cracking gas generated by the oxygen control cracking furnace is deacidified by a cracking gas purifier; (d) filtration: the deacidified cracking gas is filtered by a high-temperature membrane filter; (e) secondary cracking: the deacidified and filtered cracking gas is secondarily cracked in a high-temperature cracking tube; and (f) combustion: the secondarily cracked cracking gas is fed in a cracking gas combustion chamber for total combustion.

The invention belongs to the field of water treatment application, and provides a device for photocatalytic advanced treatment of wastewater, which includes a water inlet pipe, a nozzle and a pool body, and the water inlet pipe is connected to the pool body through a nozzle; the pool body includes a photocatalytic part and multiple The medium combination treatment part, the multi-media combination treatment part is located directly below the photocatalytic part; the present invention is an advanced treatment device composed of thin water film multi-layer oxidation and multi-media combination of wastewater, which can efficiently treat waste water It has strong oxidizing ability, good adaptability, mild degradation conditions, no need to add oxidant, and the treatment process is cheap, safe and easy to operate.

The invention discloses a method for preparing lithium carbonate from lepidolite by extracting lithium from lepidolite by a two-stage chlorination roasting-alkali leaching method, comprising the following steps: (1) grinding lepidolite ore and calcium chloride and adding it to chlorine mixing in the ammonium chloride solution to obtain green pellets; (2) performing one-stage roasting on the green pellets obtained in step (1) at 150-300°C, and then performing second-stage roasting at 500-800°C to obtain clinker; (3) leaching the clinker obtained in step (2) with water, and filtering to obtain the leachate; (4) adding carbonate solution to the leachate obtained in step (3), stirring and filtering to obtain mother liquor and filter residue, collecting the filter residue to obtain carbonic acid lithium. In the present invention, each step cooperates and acts synergistically, and the process of extracting lithium from lepidolite to prepare lithium carbonate is environmentally friendly, has low energy consumption, low cost, high extraction efficiency, and has broad industrial application prospects.

The invention discloses a preprocessing method suitable for analyzing estrogen and bisphenol A in a complex matrix solid sample, which is a method for detecting the estrogen and the bisphenol A based on accelerated solvent extraction-liquid-liquid extraction-Florisil column purification-alkaline solution extraction-HLB (Hydrophile Lipophile Balance) column enrichment purification-liquid chromatogram / tandem mass spectrometry (ASE-LLE-Florisil-AS-HLB-LC / MS / MS). The method comprises the following steps of: taking acetone and methanol in a volume ratio of 1 : 1 (v / v) as extracting agents for the accelerated solvent extraction of the estrogen and the bisphenol A in sludge and deposit; taking acetonitrile-normal hexane system for the liquid-liquid extraction to remove non-polar impurities such as grease and polycyclic aromatic hydrocarbon and the like; taking the Florisil column for purifying most of pigments; extracting the estrogen and the bisphenol A from residue by using 0.1mol / L of sodium hydroxide; filtering by a filter membrane of 0.22 um[m]; and enriching and purifying by using an HLB column. According to the method, the recovery rate of the estrogen and the bisphenol A is 75-100%, the detection limit is lower than 0.4ng / g, the purification effect is good and the detection requirement for the estrogen in the complex matrix solid sample is satisfied. According to the research result, the estrogens and the bisphenol A in the sludge, the deposit and the livestock and poultry manure sample can be quickly and effectively separated and purified, the accuracy and stability of the method can be favorably improved and the damage of the complex sample on the instrument also can be reduced.

The invention discloses a leakage-free coaling and coke pushing combined smoke purifying and recycling system and a technology for a coke oven, which comprises the coke oven (1), a coke pushing device (2) and a coke guide (3), wherein a double-U-shaped water sealing smoke guide car (6) and a high-pressure ammonia water system (7) are connected with a furnace top gas collecting tube (4) through which the coke oven is led to a chemical product recycling and purifying system (5); a smoke collecting hood (8) is equipped on an oven side furnace end of the coke oven; the smoke collecting hood is connected with a U-shaped water sealing dust-removal dry tube (10) through a leakage-free seal connecting device (9) equipped on the double-U-shaped water sealing smoke guide car; an automatic ignition burning device (11), a Venturi dust-removal device (12), a desulfurization system (13) and a fan (14) are connected in sequence behind the U-shaped water sealing dust-removal dry tube; and a discharge pipe of the fan is led to a quenching tower. The leakage-free coaling and coke pushing combined smoke purifying and recycling system and the technology for the coke oven are low in power consumption, low in investment and good in dust removal effect, and fit for all coke ovens.

The invention is a kind of dust catching and smoke clarifying device which uses clarifier to form foam layer. It has foam clarifier, there's sprayer, upper and nether net board in the barrel. The foam room is between the two boards. The smoke inlet and outlet of foam clarifier are set on the upper and nether part. The dust outlet is set on the bottom of the barrel and connects with dust gathering box. There's an axis in the barrel which connects with the axis of the electromotor. The axis in the foam room connects some vanes; there's circular water box and clarifier box by the side of the barrel.