548results about How to "Improve the degree of purification" patented technology

The invention discloses a method for SOx in a gas by using ethylene glycol complex solution. Ethylene glycol and / or polyethylene glycol is mixed with organic acid or organic acid salt without containing nitrogen atoms in molecules to form the ethylene glycol complex solution, and the ethylene glycol complex solution is in contact with the gas containing Sox to absorb SOx in the gas, wherein x is equal to 2 and / or 3; the ethylene glycol complex solution in which SOx is absorbed is regenerated by using one or more ways of a heating method, a vacuum method, a gas stripping method, an ultrasonic method, a microwave method and a radiation method, sulfur dioxide and sulfur trioxide byproducts are released, and the regenerated ethylene glycol complex solution is recycled. The method can be applied to desulfurization of flue gases, incineration gases, coke furnace gases, synthetic waste gases in a dyestuff plant and sewage disposal gases in a chemical fibre factory, and other industrial raw material gases or waste gases containing SOx.

This invention is intended to isolate and identify a vWF-specific cleaving protease.The vWF-specific cleaving protease cleaves a bond between residues Tyr 842 and Met 843 of vWF and comprises a polypeptide chain having Leu-Leu-Val-Ala-Val as a partial sequence, and more preferably comprises a polypeptide chain having the partial N-terminal amino acid sequence of a mature protein, Ala-Ala-Gly-Gly-Ile-Leu-His-Leu-Glu-Leu-Leu-Val-Ala-Val, and having a molecular weight of 105 to 160 kDa in SDS-PAGE under reducing or non-reducing conditions. Isolation and identification of this vWF-specific cleaving protease have led to the possibility of replacement therapy for patients having diseases resulting from a deficiency of the protease, such as thrombotic thrombocytopenic purpura.

The invention relates to a wet desulphurization method for removing hydrogen sulfide in gas at room temperature. The method comprises the following steps: 1. contacting gas containing hydrogen sulfide with suspending liquid containing desulfurizer in a desulphurization reactor to react; 2. sending the reacted suspending liquid to a regenerative reactor, wherein the suspending liquid is obtained from the step 1 and contains waste agent which is generated through desulfuration by using desulfurizer, regenerating the waste agent by using gas containing oxygen; and 3. sending the regenerated suspending liquid with desulfurizer which is obtained from the step 2 to the desulphurization reactor in the step 1, and contacting with hydrogen sulfide. The method for removing hydrogen sulfide in gas at room temperature of the invention has the advantages that the process is simple, the operation is performed under room temperature and normal pressure, the desulphurizing rate is high and the cost is low.

The invention relates to the technical field of temperature regulation equipment, in particular to a filter screen dedusting mechanism and an air-conditioner. The filter screen dedusting mechanism comprises a rolling device and an unrolling device which are used for rolling up and unrolling a filter screen respectively, wherein a dedusting portion is arranged on the rolling device, and in the process of rolling up and / or unrolling the filter screen, dust on the filter screen is cleaned off by the dedusting portion. Meanwhile, the invention further provides the air-conditioner adopting the filter screen dedusting mechanism. The filter screen is rolled up and unrolled through the rolling device and the unrolling device, and in the process of rolling up and / or unrolling the filter screen, dust on the filter screen is cleaned off by the dedusting portion. Therefore, the dust on the filter screen can be cleaned off automatically, the purification degree of air out of the air-conditioner is raised, and the quality of the air out of the air-conditioner is improved.

The invention relates to a photocatalytic oxidation and purification tank. The photocatalytic oxidation and purification tank is provided with an upper transverse clapboard and a lower transverse clapboard to divide a space of the tank into a middle part, an upper part and a lower part; the upper clapboard and the lower clapboard are orifice plates, wherein the upper clapboard is a small orifice plate; the lower clapboard is a large orifice plate; the middle part of the space in a tank body is a fluidized bed chamber; the lower part is a mixed chamber; the upper part is a steady flow chamber; the fluidized bed treatment chamber is provided with a plurality of ultraviolet lamps; the inside of each ultraviolet lamp is filled with photocatalyst particles; the surfaces of the photocatalyst particles are distributed with photocatalyst; a water inlet pipe of the purification tank is connected with the mixing chamber; the extending direction of the water inlet pipe is oblique or tangential; a water outlet pipe of the purification tank is connected with the steady flow chamber; the extending direction of the water outlet pipe is radial; and the tank body is also provided with an ozone inlet pipe which can be independently mounted or can adopt the same pipe with the water inlet pipe. The device has high purification degree, relatively large treatment amount and relatively lower treatment cost and is mainly suitable for occasion with higher requirement on purification degree of outlet water.