58results about How to "Easy to dissolve" patented technology

The invention relates to a method for extracting multiple active nutrient contents from sea cucumber processing liquid. The method comprises the following steps: raw material collection, primary filtration, enzymolysis, rough filtration, ultrafiltration, concentration, secondary rough filtration, desalination, fermentation, centrifugation, secondary enzymolysis, secondary centrifugation, third rough filtration, secondary ultrafiltration, secondary concentration and spray drying. The invention further relates to application of the method in orally disintegrating tablets. Compared with the prior art, the method has the advantages that a prepared sea cucumber extract contains multiple nutrient contents, and the total content of sea cucumber polypeptide, small proteins, sea cucumber mucopolysaccharide and sea cucumber glycosides reaches 80%-90%; in the whole technological process, reaction conditions are mild, no organic solvent is used, nutrient contents are hardly damaged, and molecules of the extracted sea cucumber extract are relatively small; after the sea cucumber extract is fermented by using beneficial bacteria, the nutrient contents in the sea cucumber extract are easily absorbed by human bodies, and almost no peculiar smell exists; furthermore, the technological process is very suitable for the industrial expanded production.

The invention pertains to the waste water processing technical field and relates to an oily waste water processing method and complete set of equipment thereof, which is characterized in that: firstly, the waste water is processed by an express pump and then transmitted to a steady flow cylinder by a distributor so as to be treated with demulsification and perikinetic flocculation; afterward, the waste water is transmitted to a mixing tank so as to be treated with orthokinetic flocculation; after being further charged by a high-pressure dissolved air releaser, oil-water separation is carried out to the waste water; and finally, clean water meeting the requirement of environmental protection can be obtained after the waste water is separated in an inclined tube settling zone. The processing method is characterized by simple process and equipment, low investment and low running cost.

The invention discloses a solid fixation alkaline agent for pad steaming process dyeing through reactive dyes, comprising the following components in percentage by weight: 15-30 percent of alkali metal hydroxide, 60-45 percent of alkali metal carbonate, 16-10 percent of alkali metal phosphate, 1-2 percent of chelator, 2-3 percent of alkali-resistant penetrating agent, 4-8 percent of cosolvent and 1-2 percent of color light protective agent. The alkaline agent is characterized in little dosage, convenient manufacturing and transportation, etc., and has the advantages that production cost can be reduced and environmental pollution is reduced. The alkaline agent meets the requirements on efficiency increase, emission reduction and clean production, and is sufficient to replace the prior fixation soda ash for pad steaming process dyeing through reactive dyes.

An object of the present invention is to keep an appropriate amount of a refrigerant to be circulated through a refrigerant circuit and prevent an overload operation of compression means due to high pressure abnormality in a refrigerating apparatus which obtains a supercritical pressure on a high pressure side. The refrigerating apparatus (R) obtains the supercritical pressure on the high pressure side. In the refrigerating apparatus (R), a refrigerant circuit (1) is formed on the high pressure side by a compressor (11), a gas cooler (46), main reducing means (62A, 62B), evaporators (63A, 63B). The refrigerating apparatus (R) comprises an oil separator (44) for separating the oil from the refrigerant sprayed from the compressor (11), an oil return circuit (73), an oil cooler (74), an oil bypass circuit (78),an electromagnetic valve (79) and a control means (C) for controlling these valves to collect a refrigerant circulated through the refrigerant circuit in the tank and discharging the refrigerant to the refrigerant circuit.

The invention discloses a preparation method of an oxidized bacterial cellulose solution, and belongs to the field of dissolution of bacterial cellulose. The preparation method comprises the followingsteps: purifying, crushing, homogenizing and performing ultrasonic treatment to bacterial cellulose, then oxidizing by a mixed oxidizing system of TEMPO/NaBr/NaClO, then washing, performing dry crushing or dewatering to obtain oxidized bacterial cellulose powder or an oxidized bacterial cellulose slurry, dissolving the oxidized bacterial cellulose powder or the oxidized bacterial cellulose slurryby using an aqueous alkaline dissolving agent solution, then standing at a low temperature for freezing, and thawing to obtain the transparent oxidized bacterial cellulose solution. The preparation method is simple and easy to implement, a technology is easy to control, the reagent dosage is relatively low, and the cost is saved; by the preparation method, the cellulose can be effectively dissolved to directly obtain the oxidized bacterial cellulose solution; the oxidized bacterial cellulose solution can be widely applied to the field of packaging, biomedical materials, intelligent hydrogels,membrane preparation, preparation of specially-shaped hydrogels and the like, so that the application field of the bacterial cellulose is widened.

The invention relates to a rapid dissolving method for ultrahigh molecular weight polyacrylonitrile. The method comprises the following steps: (1) grinding ultrahigh molecular weight polyacrylonitrile solid particles, sieving with a 50-300 mesh sieve so as to obtain ultrahigh molecular weight polyacrylonitrile powder; (2) slowly adding the ultrahigh molecular weight polyacrylonitrile powder in a solvent with a temperature of 0 to 25 DEG C under mechanical stirring with a rotation speed of 200-1000 revolution per minute, after adding ultrahigh molecular weight polyacrylonitrile powder, heating the solvent to a temperature of 60 to 120 DEG C under mechanical stirring with a rotation speed of 200-1000 revolution per minute, maintaining the temperature for 6 to 12 hours so as to obtain a ultrahigh molecular weight polyacrylonitrile solution, and finally filtering. The rapid dissolving method for ultrahigh molecular weight polyacrylonitrile has the advantages that the dissolving temperature is low, the energy consumption is saved, and the swelling time is greatly reduced so as to quickly finish the dissolution; furthermore, the dissolution operation is convenient, the equipment is simple, and the method is easy to carry out in engineering.

The invention relates to synthetic fiber paper for a highly heat-resistant circuit board with negative thermal expansion coefficient and a preparation method and application. The synthetic fiber paper is prepared from the following components in percentage by weight: 10-90% of structural fiber and the balance of viscose fibers, wherein the viscose fibers are fibers with negative thermal expansion coefficient and are selected from poly-p-phenylene terephthamide precipitation fibers and/or poly (p-phenylene terephthalamide) pulp. The preparation method comprises the following steps: preparing the structural fibers and viscose fibers into papermaking pulp; papermaking and moulding by a wet process; and hot-rolling and calendering to prepare the synthetic fiber paper. X-Y axis thermal expansion coefficient (CTE) in a plane of the synthetic fiber paper is negative and can offset CTE of thermosetting resin in a substrate of a printed circuit board, so that the printed circuit board is relatively stable and reliable, and the synthetic fiber paper can be applied to preparing a reinforcing material of the substrate of the printed circuit board.

The invention discloses a washing method implemented by a washing machine. The washing method has the advantages that rinsing and washing are completed in a combined manner by a washing and pre-rinsing combining step, so that national standards on rinsing and washing parameters can be met, and energy consumption can be reduced.

The invention discloses a preparation method of 2-(4-chlorophenethyl)-2-tert-butyl oxirane, which is characterized in that: the 2-(4-chlorophenethyl)-2-tert-butyl oxirane Ethane is produced by the methylation reaction of 4,4-dimethyl-1-(4-chlorophenyl)-3-pentanone, dimethyl sulfide, and dimethyl sulfate under alkaline conditions; The steps are: first, dimethyl sulfide and dimethyl sulfate are synthesized into salt at 20-30°C, and then the resulting salt is combined with 4,4-dimethyl-1-(4-chlorobenzene)-3 - Pentanone reacts at 30-40°C to generate 2-(4-chlorophenethyl)-2-tert-butyloxirane, and at the same time, dimethyl sulfide is released. The invention has the advantages of: using dimethyl sulfide as a solvent has a low boiling point of sulfide, is easy to desolventize, can be recycled repeatedly, consumes little solvent, greatly shortens the production cycle, and improves production efficiency.

The invention discloses a medicine dispensing device. The medicine dispensing device comprises a transfusion end insertion needle, a medicine dispensing insertion needle and a power device interface. A first channel used for making a transfusion container and a medicine dispensing container communicated is formed between the transfusion end insertion needle and the medicine dispensing insertion needle, and a second channel used for making the medicine dispensing container and a power device communicated is formed between the medicine dispensing insertion needle and the power device interface; when the medicine dispensing insertion needle is inserted into the medicine dispensing container, one end of the first channel and one end of the second channel are connected with each other through an inner cavity of the medicine dispensing container, so that a reverse cycle channel from transfusion end insertion needle to the medicine dispensing insertion needle to the power device interface is formed; liquid in the transfusion container and dispense medicines in the medicine dispensing container are driven by the power device, so that the automatic medicine dispensing process that medicines are dissolved in the forward direction and reflowing is conducted in the reverse direction is completed in the reverse cycle channel. The device is simple in construction, medicines are convenient to dissolve and dispense, the operation is simple and saves labor, and the device is safe and reliable to use. By means of the device, medicine dispensing can be quickly completed under pollution free conditions, the medicine dissolving and dispensing labor intensity of nurses is reduced, and work efficiency is improved.

The invention relates to a process for synthetizing 2-thiopheneacetyl chloride. The method comprises the following steps: dissolving 2-thiopheneacetic acid in dichloromethane, heating in the presence of nitrogen, dropping thionyl chloride in the state of keeping the system slightly boiling and holding the temperature for 2-3 hours after the dropping is completed; finally, carrying out suction filtration, desolvation and reduced pressure distillation to obtain the product 2-thiopheneacetyl chloride. The process disclosed by the invention has the positive effects that the dichloromethane low in boiling point is adopted as the solvent, so that the desolvation is easy and the product content is not influenced; SO2 and HCl produced in the reaction can be volatilized along with the dichloromethane through keeping a proper reaction temperature, so that the reaction can be fully carried out and the reaction yield is increased; the volatilized dichloromethane is cooled through cold saline and can be recycled after being washed by water; the process is mild in reaction condition, little in catalyst amount and simple; compared with an existing synthesis process, the process disclosed by the invention has obvious economic benefit and environmental benefit and is beneficial to industrial production.