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53 results about "Activation action" patented technology

Preparation of diatrizoic-acid-modified double-element target CT (Computed Tomography) contrast agent containing gold and iodine

The invention relates to a preparation method of a diatrizoic-acid-modified double-element target CT (Computed Tomography) contrast agent containing gold and iodine. The preparation method comprises the following steps of: (1) adopting a fifth-generation polyamide-amine dendroid macromolecule as a template, adopting a gradual reduction method to load higher-content gold nanoparticles and forming Au NPs; (2) connecting small-molecular diatrizoic-acid containing the iodine onto the amino group of the surface of the dendroid macromolecule by EDC activation action to obtain the nano compound containing gold and iodine simultaneously; and (3) connecting carboxylic polyethylene glycol-folic acid and methoxy polyethylene glycol onto the surface of the nano compound in the step (2) sequentially by EDC activation action, and finally under the existence of triethylamine, acetylizing all the remained amino groups on the surface of the dendroid macromolecule by using acetic anhydride, dialyzing, and freeze-drying to obtain the diatrizoic-acid-modified double-element target CT contrast agent containing the gold and the iodine. The preparation method is simple in operation, mild in condition and easy in operation; and the CT contrast agent is good in imaging effect and has the advantages of good water solubility and biocompatibility.
Owner:DONGHUA UNIV

Method and device of simultaneously carrying out formaldehyde loaded activated carbon regeneration and desorbed gas quenching

The invention discloses a method and a device of simultaneously carrying out formaldehyde loaded activated carbon regeneration and desorbed gas quenching. Metal powder or a metal wire is placed in a regeneration device, and formaldehyde loaded activated carbon regeneration and desorbed gas quenching are realized simultaneously by utilizing microwave-induced metal discharge. The method and the device have two advantages that firstly, a heat effect of microwave-induced metal discharge: a great quantity of heat is released within a short time to enable the ambient temperature to rise at high speed, and the regeneration rate of activated carbon can be increased; and a plasma phenomenon: plasmas have the certain catalysis to chemical reaction, but are excited and generated by metal discharge, so that degradation and desorption of generated formaldehyde are accelerated, amorphous carbon is generated to be adhered to and deposited in the surface interface of the regenerative activated carbon, and modified activation action is exerted on the regenerative activated carbon; and secondly, from the angles of economy and the regeneration device, activated carbon regeneration and desorbed gas quenching are simultaneously carried out in the same device, the step of processing desorbed gas after regeneration is saved, and thus the regeneration cost is saved.
Owner:魏汝涵

Equipment anti-counterfeiting and activation method and device

InactiveCN110135858AAvoid Activation SituationsGuard against plagiarismCo-operative working arrangementsTransmissionActivation methodActivation action
The invention relates to an equipment anti-counterfeiting and activating method, which comprises the following steps of: S1, scanning an identification code on equipment by using a mobile terminal, obtaining identification information of the equipment, and sending the identification information to a cloud server; S2, after receiving the identification information, enabling the cloud server to check the authenticity and activation of the equipment, and return a corresponding check result to the mobile terminal; S3, if the verification result of the equipment in the step S2 is a genuine productand is not activated, enabling the mobile terminal to trigger an activation action to the cloud server; and S4, enabling the cloud server to generate an activation code according to the identificationcode of the device and send the activation code to the device, and enabling the device to unlock the device after receiving the activation code to complete activation of the device. According to themethod, the anti-counterfeiting and activation method and technology can be effectively prevented from being plagiarized by other manufacturers, and the situation that the method provided by the invention can be applied to activate the copycat product is avoided. The risk of technical leakage is avoided.
Owner:GUANGDONG VANWARD NEW ELECTRIC CO LTD

Dinaphthosilole organic photoelectric functional material and synthesis method thereof

The invention discloses a dinaphthosilole organic photoelectric functional material. The functional material is synthesized mainly through the following steps: synthesizing a zirconium heterocycle performing water-free and oxygen-free reaction on bis-substituted internal alkyne under the catalytic action of a metallocene zirconium complex; under the catalytic action of cuprous chloride, reacting with tetraiodo-benzene to generate diiodo-naphthalene; synthesizing a dinaphthalene under the lithiation action of n-butyllithium; and finally synthesizing the dinaphthosilole photoelectric material under the lithiation action of tert-butyllithium. In the synthesis process, the method for preparing the diiodo-naphthalene through coupling reaction of heterocyclopentadiene and polyarylated iodide is simple and high in yield; through the activation action of the n-butyllithium, the dinaphthalene can be synthesized from the bimolecular diiodo-naphthalene; and the metallocene zirconium complex is used as a homogeneous olefin polymerization catalyst, so that the catalytic activity and the olefin polymerization stereoselectivity are high. The synthesized dinaphthosilole is of great use in the fields of conductive high-polymer materials, liquid crystal materials and biological active substances.
Owner:TIANJIN UNIV

Continuous production method of edible glucose

The invention discloses a continuous production method of edible grade glucose. The method utilizes secondary spraying and other processes to prepare high-purity glucose from corn starch milk. The addition amount of liquefaction enzyme and saccharification enzyme in the process is small and the process is simple. As that corn is soak in the ferrous sulfite, the corn can be sterilized, the degradation of the starch in the corn can be promote, and the subsequent glucose production can be promoted to a certain extent; The method also adopts calcium hydroxide solution to adjust pH value of starchsolution before liquefaction and saccharification, and utilizes activation action of calcium ion on liquefaction enzyme to achieve the effect of promoting decomposition of starch, thereby improving utilization rate of corn starch milk; and the invention also adopts calcium hydroxide solution to regulate pH value of starch solution before liquefaction and saccharification to promote decomposition of starch; The invention adopts activated carbon and ultrafiltration membrane to carry out secondary decolorization treatment on glucose solution, and also adopts attapulgite rod to carry out secondarydecolorization treatment on glucose solution. Bacterial cellulose microspheres adsorb proteins, fats and small inorganic salts in glucose solution.
Owner:珠海市麦可美生物技术有限公司

Treatment method for removing cellulose from papermaking wastewater

The invention discloses a treatment method for removing cellulose from papermaking wastewater. The wastewater is treated through a water collection well, a coarse screen, a primary sedimentation tank, a pH value regulation tank, an ultrasonic catalytic crosslinking and cellulose filter-pressing separation system, an aeration tank, a biological oxidation filter tank, a secondary sedimentation tank and a water purification tank sequentially. By innovatively taking the advantage that cellulose has a characteristic of crosslinking reaction in existence of certain weak acid substances, citric acid is selected as a crosslinking agent, and trisodium citrate is selected as a catalyst; the citric acid and the trisodium citrate are added into papermaking wastewater containing a great quantity of natural celluloses to realize well mixing, and then the citric acid and the natural celluloses are in cyclic anhydride-esterification reaction under catalytic activation action of ultrasonic to generate a cellulose gel substance with a space chemical cross-linked structure. The cellulose gel substance is insoluble in water and has a flocculation characteristic, and accordingly simultaneous removal of COD and celluloses in the papermaking wastewater is realized.
Owner:淄博语嫣丹青纸业有限公司
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