32results about How to "Simplify follow-up" patented technology

The present invention discloses a preparation method and application of a fatty dioic acid derivative. The method is as below: first reacting long-chain fatty dioic acid with thionyl chloride to obtain acyl chloride; reacting acyl chloride with t-butanol and removing chlorine group to obtain long-chain tert-butyl fatty dioic acid; then reacting the tert-butyl fatty dioic acid with N-hydroxy succinimide to obtain long-chain fatty dioic acid succinimidyl tert-butyl ester; reacting long-chain fatty dioic acid succinimidyl tert-butyl ester with L- glutamic acid-1-t-butyl ester to obtain tert-butyl long-chain aliphatic diacyl-L-Glu-OtBu; then reacting tert-butyl long-chain aliphatic diacyl-L-Glu-OtBu with N-hydroxysuccinimide to obtain tert-butyl long-chain aliphatic diacyl-L-Glu(OSu)-OtBu; and finally, removing the fatty dioic acid derivative in the tert-butyl long-chain aliphatic diacyl-L-Glu(OSu)-OtBu to obtain long-chain fatty dioic acid derivative. The method has the advantages of simple route operation, controllable quality, suitability for industrial scale production, low cost, simple purification, and is applicable to the preparation of high purity insulin analogues.

The invention provides a method for preparing rhodium chloride through recovering rhodium from incinerated waste rhodium residues. The method comprises the steps of firstly carrying out aerobic high-temperature roasting on waste catalyst roasting rhodium residues with incompletely removed organic matters, thus thoroughly removing the organic matters, and obtaining rhodium ash; then adding hydrofluoric acid and perchloric acid into the rhodium ash for pretreating, adding hydrochloric acid and hydrogen peroxide for directly dissolving the rhodium residues, and filtering to obtain a coarse rhodium acid solution; finally adopting an ion exchange method for the coarse chlororhodic acid solution to remove ion impurities such as Fe, Ni and Ca, and then concentrating and drying to obtain rhodium chloride hydrate. According to the method provided by the invention, a roasted rhodium residue post-treatment process is simplified, the efficiency is high, the rhodium loss is less, and the rhodium yield is larger than 99 percent.

The invention discloses a self-adhesive long-acting slow-release essential oil microcapsule and a preparation method and an application thereof. The method comprises the following steps of: uniformly mixing essential oil, a reaction monomer, an auxiliary emulsifying agent, oil-soluble initiator and a newly-added oil-soluble crosslinking agent to obtain an essential oil / monomer mixed solution; adding an aqueous solution of an emulsifying agent; pre-emulsifying in a shearing and stirring state for 10-20 minutes; performing ultrasonic dispersion in an ice-water bath to obtain a fine emulsified liquid; and performing a polymerization reaction on the fine emulsified liquid in a nitrogen atmosphere in a shearing and stirring state at the temperature of 65-70 DEG C for 3-6 hours, and cooling after finishing reaction to obtain self-adhesive long-acting slow-release essential oil microcapsule rubber latex. The preparation method has the advantages of ready availability of raw materials, simple process, high good controllability over the morphological structure of the microcapsule, no relevance to organic solvents and suitability for industrial production; and the prepared microcapsule has high structural strength, a good slow release effect, and high self-adhesive properties on substrates such as fibers and the like. The invention further discloses a self-adhesive long-acting slow-release essential oil microcapsule and an application thereof.

The invention discloses a preparation method of silk fibroin thixotropic gel. Firstly, common silk fibroin solution and crystallized silk fibroin particle solution are prepared, then the crystallized silk fibroin particle solution is mixed with common silk fibroin solution of specific concentration, and left standing to obtain silk fibroin thixotropic gel. This technology can control the gelation time and light transmittance of hydrogel by changing the concentration of silk fibroin solution, the concentration of crystallized silk fibroin particle solution, the mixing ratio of the two, and the treatment temperature. The preparation process of the present invention is mild, no toxic organic reagents such as cross-linking agents are needed, the preparation conditions are green and controllable, it is convenient for large-scale preparation, there is no waste residue, green and pollution-free, and it is easy for industrialization.

The invention discloses a water collecting and chip collecting device, which comprises an outer protective box, the top and bottom of the outer protective box are both open structures, and the outer protective box is provided with a chip collecting plate, a reversible filter plate and a water collecting plate. box, the reversible filter plate includes a front baffle, a rear baffle and a filter screen plate, the front baffle and the rear baffle are welded by two axle column rings, and the clip at the joint of the front baffle and the rear baffle The angle is an obtuse angle, and there is a slot at the joint between the front baffle and the rear baffle, and the filter screen includes two side mesh plates and a horizontal mesh plate connecting the two side mesh plates, and the horizontal mesh Filter nets are arranged on the plate and the two side mesh plates. Through the ingenious design structure, the present invention can recycle the cutting fluid mixed in the redundant metal chips, and realize the separate collection of metal chips, which not only realizes the recycling of cutting fluid, but also greatly improves the usage rate of cutting fluid , reducing the cost of cutting fluid.

The invention provides a character processing method and device. The method comprises the steps of: reading a first character string stored in a data source file in an EXCEL format; substituting the first character string according to a preset character string substituting relation, and storing a second substituted character string in a blank EXCEL file; and converting the EXCEL file for storing the second character string into a comma separated value CSV formatted file. By employing the character processing method and device, the error rate can be lowered, and the utilization efficiency can be increased.

The invention discloses a preparation method of BOC-L-asparagine. The preparation method comprises the following steps: using L-asparaginate and di-tert-butyl dicarbonate ester as raw materials and water as a reaction solvent to carry out a reaction under the alkaline condition of pH 9-10 to generate BOC-L-asparagine, acidizing a reaction liquid to pH 4.0-4.5 to precipitate out a BOC-L-asparagine crude product, carrying out suction filtration, washing with water and drying to obtain a BOC-L-asparagine refined product. The preparation method of BOC-L-asparagine has advantages of mild reaction condition, fast reaction and lower cost of raw materials. As water is used as the reaction solvent, the subsequent operation is simple, and BOC-L-asparagines crystal can be precipitated out only by acidifying. The method is beneficial to industrial production, is environment friendly and has high safety factor.

Embodiments of the present invention propose a method and device for processing intercepted short messages, the method comprising: obtaining the intercepted short messages; identifying the interception type of the intercepted short messages; and displaying corresponding operation options according to the interception types of the intercepted short messages. Through the method and device of the embodiment of the present invention, based on different types of interception, it is possible to recommend different follow-up operations to the user for the intercepted short message, thereby more catering to the needs of the user, simplifying the follow-up operation of the intercepted short message, and saving additional operations The extra time cost of the step.