1630 results about "Chloride sodium" patented technology

The invention discloses piggy creep feed containing composite flavone. The piggy creep feed is prepared from the following raw materials in parts by weight: 13 to 20 parts of expanded corn, 10 to 25 parts of corn, 6 to 13 parts of broken rice, 8 to 12 parts of flour, 8 to 15 parts of whey mist, 3 to 8 parts of soy protein concentrate, 5 to 10 parts of extruded soybean, 0.7 to 3 parts of soya-bean oil, 7 to 12 parts of 46.5-percent bean pulp, 2 to 5 parts of fish meal, 2 to 5 parts of plasma protein powder, 0.3 to 0.7 part of mountain flour, 0.5 to 1.0 part of calcium hydrophosphate, 0.05 to 0.5 part of lysine, 0.05 to 0.3 part of threonine, 0.1 to 0.3 part of sodium chloride, 0.1 to 0.8 part of compound flavone premix compounds, 0.15 to 0.3 part of zinc oxide, 0.03 to 0.06 part of calcium propionate, 0.02 to 0.04 part of ethoxyquin and 1.0 part of suckling pig premix compounds. The invention also discloses a preparation method. The intestinal tract health and the production performance of weaned pigs can be improved.

A low-carbon near zero emission process of industrial waste water, comprising: S1: entering industrial waste water into a pre-oxidation system to improve biodegradability of organics; S2: after treatment in the pre-oxidation unit, entering the waste water into an anaerobic biological treatment system, sodium chloride and sulfate is deeply removed and carbon sources in the waste water can be used to remove the sulfate and nitrate; S3: entering water output from the anaerobic biological treatment system into a membrane concentration system and membrane concentrated solution enters a nano-filtration salt fractionation system for salt fractionation; and S4: refluxing nano-filtration concentrate solution generated by the nano-filtration salt fractionation system to the anaerobic biologic treatment system for biological desulfurization, or synthesizing the nano-filtration concentrate solution to be sodium persulfate by electro chemical methods, and refluxing proportionately to a waste water pre-oxidation system for use in-situ.

The invention discloses a multi-dimensional rapid evaluation method for snow-melting agent corrosion resistance of stainless steel, and relates to the technical field of stainless steel performance evaluation.The multi-dimensional rapid evaluation method comprises the steps that sodium chloride, calcium chloride and magnesium chloride are weighed by mass and dissolved in deionized water, acetic acid and sodium hydrogen sulfite are added after dissolution, and the pH value is adjusted to 4-6; performing potentiodynamic polarization scanning and electrochemical impedance spectroscopy testing on the stainless steel sample to obtain pitting potential and impedance modulus; the method comprises the following steps: placing a stainless steel sample in a cyclic corrosion experiment box, carrying out a corrosion experiment under the conditions of controlling the cyclic temperature change of an environment temperature and periodically carrying out cyclic switching of a spraying mode, a humid mode and a drying mode, taking out the sample every set time, and measuring the corrosion rate and the maximum pitting depth; and according to the pitting potential, the impedance modulus, the corrosion rate and the maximum pitting depth, carrying out graded judgment on the corrosion resistance of the stainless steel. According to the method, the corrosion resistance of the stainless steel can be accurately evaluated in a short time.

The invention relates to a method for recovering mixed salts (mainly containing calcium chloride, sodium chloride and potassium chloride) from a household garbage incineration fly ash leaching solution, and particularly provides two separation technical schemes. The traditional separation method generally needs to use a large amount of decalcifying agent, so that the cost is high, calcium chloride cannot be effectively recycled, and the problem of resource waste exists. In order to solve the problems, the invention selectively dissolves calcium chloride in the mixed salt by adopting a specific organic solvent (such as ethanol or methanol) and utilizing the characteristics that the solubility of calcium chloride in the solvent is high, the solubility of sodium chloride and potassium chloride is low, and the boiling point is relatively low. And a calcium chloride product can be recovered after solvent evaporation. Furthermore, the residual mixed salt is further washed using the specific organic solvent to remove entrained calcium chloride, thereby obtaining a mixed salt containing predominantly sodium chloride and potassium chloride. According to the technical scheme 1, the mixed salt subjected to separation and calcium removal is subjected to dissolution treatment under the high-temperature condition, potassium chloride is dissolved, the particle size of sodium chloride crystals is promoted to be increased, the sodium chloride crystals are obtained through solid-liquid separation, and then mother liquor is cooled and crystallized to recover potassium chloride. According to the technical scheme 2, the mixed salt subjected to separation and calcium removal is subjected to aging treatment so as to promote particle size increase of sodium chloride and potassium chloride crystals, then the aged mixed salt is separated by adopting a flotation method, and sodium chloride and potassium chloride products are recycled respectively.

The invention relates to the technical field of industrial production wastewater treatment, and particularly provides a resource utilization method of calcium chloride high-salt water containing high-concentration organic matters. The method comprises the steps of pretreatment, wet catalytic oxidation, salt type conversion, softening filtration, deep oxidation, nanofiltration purification and targeted adsorption, no residual mother liquor exists, no secondary pollution is generated, organic matters in effluent are stable and reach the standard, the water quality and water quantity fluctuation resistance is high, heterogeneous and homogeneous catalysts are combined for catalysis, and the purification effect is good. According to the method, the sodium chloride solution is used as a raw material, the homogeneous catalyst is recycled, in addition, most of salt in the homogeneous catalyst is also recycled, resource reutilization is fully achieved, the treatment cost is reduced, and the treated sodium chloride solution can be used as primary saline water for subsequent ion membrane electrolysis.

The invention discloses a fermentation medium for regulating and controlling a clostridium aerovorans target product and a fermentation method of the clostridium aerovorans target product. The medium comprises a basic component and a regulating component, the basic components comprise ammonium chloride, potassium chloride, magnesium sulfate heptahydrate, sodium chloride, monopotassium phosphate, yeast powder, calcium chloride dihydrate, sodium selenite, nickel chloride hexahydrate, biotin, folic acid, pyridoxine hydrochloride, thiamine, riboflavin, nicotinic acid, D-calcium pantothenate, cobalamin, para aminobenzoic acid and lipoic acid; the adjusting component comprises sodium tungstate, ferrous sulfate and sodium molybdate, sodium tungstate and ferrous sulfate have a forward adjusting effect on increasing the yield of acetic acid, ethanol and butanol in the target product, and sodium molybdate has a reverse adjusting effect on the target product. By optimizing the proportion of trace elements in the culture medium, the clostridium metabolism efficiency is improved, synthesis of a target product is regulated and controlled, and the method is particularly suitable for industrial production of acetic acid, ethanol, butanol and the like.

The invention discloses a preparation method for preparing a biomass porous carbon material through high-temperature carbonization of molten salt and application of the biomass porous carbon material, and belongs to the technical field of synthesis of inorganic functional materials. According to the technical scheme, the method is characterized in that sodium chloride and potassium chloride are mixed into mixed salt according to different proportions, then the mixed salt is mixed with enteromorpha biomass according to a certain proportion, the mixture is placed in a porcelain crucible, the mixed salt is added for covering, the porcelain crucible is placed in a muffle furnace to be heated and carbonized, and the porous biomass carbon material is obtained after water washing and drying. The enteromorpha biomass is selected as the raw material, the operation is simple and controllable, the cost is low, batch production can be realized, and the prepared novel porous biomass carbon material has a complex porous structure, a large specific surface area, a very good catalytic effect, strong adsorption capacity and good conductivity, and shows excellent performance when being applied to the field of advanced oxidation.

The invention discloses a technological method for extracting lithium, rubidium and cesium through a lepidolite chlorate method. The technological method comprises the steps that lepidolite, calcium chloride, sodium chloride and calcium oxide are mixed and then roasted, and clinker is obtained; leaching the clinker under an acidic condition to obtain brine; performing impurity removal treatment on the brine to obtain purified clear liquid; performing lithium precipitation on the purified clear liquid through sodium carbonate liquid; the method comprises the following steps: extracting filtered waste liquid subjected to lithium precipitation through an extracting agent and a dispersing agent, washing a rubidium and cesium oil phase obtained by extraction by adopting two-section multi-stage cross flow of different detergents to obtain an organic phase, and carrying out reverse extraction on the obtained organic phase to reversely extract rubidium and cesium into reverse water; and preparing salt from the reverse water in an evaporation drying manner. According to the method, after the lepidolite is subjected to roasting transformation leaching, the leaching rate of lithium can reach 94% or above, the leaching rates of rubidium and cesium can reach 98% or above, the process of extracting lithium, rubidium and cesium from the lepidolite to prepare corresponding salt products is environmentally friendly, energy-saving, low in energy consumption, low in cost and high in extraction rate, and wide industrial application prospects are achieved.

The invention relates to a rapid detection kit for large yellow croaker pyramidal worm, and belongs to the field of pathogen biological diagnosis in aquaculture. The kit comprises a nucleic acid releasing agent and further comprises a primer and a probe which are used for detecting the large yellow croaker pyramidal worm. The kit comprises a nucleic acid releaser; the formula of the nucleic acid releasing agent comprises tris (hydroxymethyl) aminomethane hydrochloride with the final concentration of 100 mM, sodium chloride with the final concentration of 100 mM, sodium dodecyl sulfate with the final concentration of 1 wt%, sodium alpha-olefin sulfonate with the final concentration of 3 wt%, sodium lauroyl glutamate with the final concentration of 1.2 wt%, betaine with the final concentration of 1 wt% and water as a solvent. The sequences of the primer and the probe for detecting the Pseudosciaena crocea pyramidal are 5 '-TATGGGCAATTCTGAATCCT-3', 5 '-TCTTTTCTGATCCCTGAAT-3' and 5 '-FAM-GTCGGTGGAGTGATTTGTTTG-3'. The kit disclosed by the invention is simple to operate, provides a tool for diagnosis, prevalence monitoring, prevention and control of the Pseudosciaena crocea pyramidal, and has a very high application value.

The invention belongs to the technical field of organic synthesis of ethers, and particularly relates to a method for continuously synthesizing ethylene glycol dimethyl ether. The method comprises the following steps that ethylene glycol, sodium hydroxide and methane chloride serve as raw materials, multi-stage continuous reaction is carried out in liquid membrane reactors to synthesize ethylene glycol dimethyl ether, ethylene glycol, sodium hydroxide and methane chloride are introduced into the first-stage liquid membrane reactor, sodium hydroxide and methane chloride are introduced into the subsequent stages of liquid membrane reactors, and the first-stage liquid membrane reactor and the second-stage liquid membrane reactor are connected with the second-stage liquid membrane reactor. A byproduct sodium chloride is separated from a reaction product in the previous-stage liquid membrane reactor and then enters the next-stage liquid membrane reactor, a byproduct sodium chloride is separated from a reaction product in the last-stage liquid membrane reactor and then clear liquid is obtained, and ethylene glycol dimethyl ether is obtained through rectification treatment. The invention develops a novel process mode for continuously synthesizing an ethylene glycol dimethyl ether product, and provides a new idea for large-scale continuous production of ethylene glycol dimethyl ether.

The invention discloses a waste incineration fly ash coupling sodium-based waste salt harmless treatment resource utilization method, which comprises the following steps: preparing household waste incineration fly ash and sodium-based waste salt according to a dry basis molar content ratio of (1-1.05): 1, uniformly mixing, and carrying out heat treatment at 450-500 DEG C to obtain an ash-salt mixture; washing with water to remove chlorine salt and heavy metal to obtain a chlorine salt solution and a mud cake; treating the chlorine salt solution to obtain industrial regenerated salt sodium chloride and potassium chloride; pulping the mud cake, adding a flotation agent for flotation to obtain flotation residues and industrial dihydrate gypsum, and preparing alpha gypsum from the industrial dihydrate gypsum by using a dry method; and after flotation, feeding residues into a grinding unit for grinding to obtain the desulfurizer. According to the method, the fly ash and the sodium-based waste salt are subjected to coupling treatment in one set of equipment, potassium chloride, sodium chloride, gypsum, calcium carbonate, calcium hydroxide and the like in the waste incineration fly ash and the sodium-based waste salt are effectively and respectively treated into products for all purposes, recycling of all valuable components is achieved, and the resource utilization value is high.

The invention discloses a saline-alkaline tolerant compound microbial agent and application thereof, and particularly relates to the technical field of microbial soil treatment. The microbial agent comprises Klebsiella, Enterobacter hormaechei and humic acid, the ratio of the components is as follows: Klebsiella: Enterobacter hormaechei: humic acid = 1: (0.5-2): (1-3), and both Klebsiella and Enterobacter hormaechei are obtained by fermentation culture. According to the present invention, the specific pH gradient is adopted for the Klebsiella and the Enterobacter hormaechei, and the segmented fermentation process combining the specific pH gradient with the corresponding gradually-increased sodium chloride concentration is adopted, such that the strain is effectively subjected to the directional domestication so as to maintain the activity and the function in the high-salt and high-alkali extreme environment.

The invention discloses a method for improving the crystallinity and catalytic water decomposition performance of a polyheptazine imino carbon nitride photocatalyst, and belongs to the technical field of photocatalytic material preparation. The preparation method comprises the following steps: firstly, by taking melamine as a precursor, carrying out thermal polymerization to obtain an oligomer melt consisting of heptazine units; then carrying out high-temperature fused salt calcination treatment in a nitrogen atmosphere to obtain carbon nitride with a certain crystallinity; and adding sodium chloride as a structure regulator, fully grinding, calcining in vacuum, washing with water, and drying to obtain the crystalline-phase carbon nitride photocatalyst with high crystallinity. The method is simple, the cost is low, the actual production requirement is met, and the synthesized photocatalyst has good polymerization degree and light absorption performance, has excellent activity of fully decomposing water to produce hydrogen and oxygen under the condition of no sacrificial agent, and has the potential of realizing photocatalytic full-decomposition water diversion and the prospect of industrial application.

The invention discloses a preparation method of high-viscosity cationic starch, which belongs to the technical field of modified starch, and comprises the following steps: crosslinking epichlorohydrin, ball-milling and cationizing; the epoxy chloropropane crosslinking comprises the following steps: mixing starch, calcium hydroxide and deionized water, stirring at 40-50 DEG C, adding sodium stearoyl lactylate, stirring at 50-55 DEG C, naturally cooling to room temperature, adding sodium chloride and epoxy chloropropane, stirring, dropwise adding a potassium hydroxide aqueous solution, stirring, adjusting the pH value to 6, filtering, taking filter residues, washing and drying to obtain crosslinked starch; in the step of ball milling, calcium hydroxide, sucrose fatty acid ester SE-11 and deionized water are mixed and then subjected to ball milling, and a ball-milled material is obtained; the prepared high-viscosity cationic starch is high in paste liquid viscosity and cationic substitution degree, good in paste liquid viscosity stability, uniform in substitution degree and paste liquid viscosity, high in reaction efficiency in cationization and low in alkali consumption.

A method for the bioremediation of hydrocarbon-contaminated production water through the microbiological process of culturing salt-tolerant bacteria in a high-salt cell culture medium for decontamination. The high-salt cell culture medium contains sodium chloride, sodium sulfate, sodium bicarbonate, calcium chloride, and calcium chloride, along with agar, water, and salt-tolerant bacteria to form broth. Once incubated to form an inoculation mixture, this broth is combined with production water to produce a bacteria-containing liquid mixture, and then treated with production water, bioremediating by propagating the bacteria-containing liquid mixture in the treated production water.

The invention relates to the technical field of waste slurry treatment, in particular to a geopolymer curing performance enhancing and modifying method for high-bentonite-content slurry. Comprising a method for adding a curing and enhancing modification auxiliary agent, and the method for adding the curing and enhancing modification auxiliary agent comprises the following steps: doping the curing and enhancing modification auxiliary agent into high-bentonite-content slurry, uniformly stirring, and standing for curing; wherein the curing enhanced modification additive comprises the following raw material components in percentage by mass: 70-80% of calcium chloride, 10-20% of sodium chloride, 10-15% of nano silicon dioxide, 5-10% of a dispersing agent and 0.5-3% of an EDTA (Ethylene Diamine Tetraacetic Acid)-polymer derivative. The additive is added, so that the negative influence of bentonite in the waste slurry on the reaction of the geopolymer is effectively eliminated, the reaction conditions of the geopolymer in a complex slurry environment are optimized, and the utilization rate and the success rate of the slurry are improved.

The invention discloses a preparation method of ulinastatin adsorption resin, and belongs to the technical field of adsorption resin. Comprising the following steps: (1) preparing a water phase: adding pure water, gelatin, cellulose, sodium chloride and lignin into a reaction kettle until the materials are fully dissolved; (2) preparing an oil phase, wherein the oil phase contains divinylbenzene, methyl acrylate, benzoyl peroxide, tert-butyl peroxy-2-ethylhexanoate, triallyl isocyanurate, tripropanol alkyl trimethacrylate and methylbenzene, and the oil phase is uniformly stirred and mixed with the methylbenzene and the trivinylbenzene, the methyl acrylate, the benzoyl peroxide, the tert-butyl peroxy-2-ethylhexanoate, the triallyl isocyanurate, the tripropanol alkyl trimethacrylate and the methylbenzene; (3) suspension polymerization: putting the oil phase into the water phase, and carrying out staged heating reaction; (4) amination reaction; (5) alkylation reaction; and (6) acid-base alcohol treatment. Compared with the existing resin, the resin disclosed by the invention has the characteristics of high adsorption exchange rate, high desorption rate and high desorption concentration on ulinastatin, and the yield of ulinastatin is increased by 1.17 times compared with that of D215 resin.

The invention provides a geopolymer alkali activator based on a red mud raw material and a preparation method of the geopolymer alkali activator, and belongs to the technical field of geopolymer materials. The method comprises the following steps that under the stirring and heating conditions, red mud and plant ash are gradually added into a sodium chloride solution to form a mixed solution, the mass ratio of the red mud to the plant ash is (3-6): 1, and the solid-liquid mass ratio of the red mud to the sodium chloride solution is 1: (3-6); the pH value of the system and the Na2O release amount are continuously detected, when the pH value of the system is larger than or equal to 12.0 and the change amount within 30 min is smaller than 0.1, steel slag micro powder is added, the adding amount is 1-5% of the total mass of the mixed solution, and stirring continues to be conducted for 20-60 min; and when the pH value of the system is stable and no longer increased within 2 hours or the release amount of Na2O is balanced, carrying out solid-liquid separation to obtain filtrate, namely the geopolymer alkali activator. According to the method, the dependence on traditional high-alkalinity chemical substances can be reduced, and a new way is provided for resource utilization of the red mud.

The present invention relates to an ophthalmic preparation. The ophthalmic preparation comprises: penehyclidine hydrochloride, phosphate buffer, sodium chloride and hypromellose; wherein, based on the total volume of the ophthalmic preparation, the concentration of the phosphate buffer is not higher than 25 mM and not 0 mM, the mass-volume ratio of penehyclidine hydrochloride is 0.01% - 2%, and the mass ratio of penehyclidine hydrochloride to sodium chloride is (0.011 - 0.85):1. The ophthalmic preparation of the present invention has the advantages of low irritation and high stability.

The application relates to the technical field of silver powder preparation, and discloses a method for producing silver powder by using photovoltaic panel battery pieces, which comprises the following steps: S1, after waste photovoltaic battery pieces and acid liquor are initially mixed, a leaching agent is added for secondary mixing, and filtration is carried out to obtain a silver-containing liquid; S2, sodium chloride is added into the silver-containing liquid to obtain a precipitate; and S3, the precipitate is subjected to reduction treatment to obtain silver powder; and the components of the leaching agent include 8-hydroxyquinoline and / or pyridine-2,6-dicarboxylic acid. Through the technical scheme, the problem of low silver powder yield in the production of silver powder by using photovoltaic battery pieces in the related art is solved.

The present application discloses a feed additive and preparation method for promoting intestinal health of livestock and poultry, which comprises the following steps: S1, adding water to montmorillonite and sodium chloride, stirring evenly to form a suspension slurry with a concentration of 10% to 20%, sodiumizing at room temperature, and re-forming the slurry with water to a concentration of 15% to 40%; S2, slowly adding cetylpyridinium chloride to the slurry of step S1 under stirring, and continuously stirring at room temperature for a certain time; S3, slowly adding carvacrol to the slurry of step S2 under stirring, and continuously stirring at room temperature for a certain time; S4, dehydrating the reaction solution of step S3, and drying the obtained filter cake; the dried filter cake needs to be inspected to see if it is completely dried; S5, crushing to obtain a feed additive for promoting intestinal health of livestock and poultry. Adding 0.1% of the feed additive for promoting intestinal health of livestock and poultry to the diet of laying hens can increase the egg production rate of laying hens by 1.5 percentage points, effectively control spotted eggs, and increase the qualified egg rate by 2 percentage points.

The invention provides a polymyxin B sulfate microbial limit counting inspection method, which comprises the following steps: filtering a 1: 100 test solution and less than or equal to 100cfu test bacteria in a sterile sodium chloride aqueous solution by adopting a membrane filtration method, flushing with the sterile sodium chloride aqueous solution, and pasting a filter membrane on a culture medium plate to serve as a test group; referring to the method of the test group, taking the polymyxin B sulfate control group without adding the test bacteria; by referring to a method of a test group, respectively replacing the test solution with a 1mol / L magnesium chloride aqueous solution to serve as a bacteria solution control group; by referring to a method of a test group, replacing a test solution with a 1mol / L sterile magnesium chloride aqueous solution, and taking the test solution as a negative control group without adding test bacteria; the experimental group and the control group are cultured and counted, and the recovery ratio of the experimental bacteria is within the range of 0.5-2 and meets the requirements. The problem of applicability of the microbial limit counting inspection method is solved.

The invention relates to the technical field of sodium chloride crystal preparation systems, in particular to a sodium chloride crystal preparation system which comprises a crystal separation tank, an annular isolation cylinder 2, a first heat exchanger, a center cylinder and an annular isolation cylinder. The annular isolation barrel is provided with an upper guide section and a lower acceleration section which are sequentially connected, the upper end of the upper guide section is fixedly connected to the inner circumferential wall of the crystallization separation tank, the upper guide section is gradually and downwards inclined from outside to inside of the crystallization separation tank, and the lower acceleration section is located at the lower end of the upper guide section. Through circulating conveying of the first conveying pump and cooperation of the first conveying pump, the heating mechanism and the fine grain eliminating mechanism, circulating treatment of brine in the crystallization separation tank is achieved, the functions of particle size grading and particle size growth are achieved, the salt crystallization process is optimized, the proportion of the salt product with the size smaller than 450 micrometers is reduced to be within 18% from 45%, and the crystal breaking force is enhanced and is increased to 3.30-6.77 N from 1.39-6.61 N.

The invention provides a synthesis method of tris (dimethylamino) cyclopentadienyl hafnium, which comprises the following steps: reacting hafnium tetrachloride with sodium dimethylamino at a first temperature under the protection of inert gas to form an intermediate; heating and settling, cooling to a second temperature, dropwise adding cyclopentadiene, and filtering, distilling and purifying to obtain a target product. According to the method, high yield and high purity are achieved by optimizing the raw material ratio and controlling the dropwise adding temperature and the use amount of cyclopentadiene. The byproduct sodium chloride is large in particle and easy to filter, the post-treatment process is remarkably simplified, and the process safety, controllability and industrial adaptability are improved.

The invention discloses an analysis method for simultaneously determining residues of telolenol, pentnitrophenol, pentachlorophenol and poisonous phenol in grease. The method comprises the following specific steps: (1) dissolving a grease sample with dichloromethane, carrying out vortex uniform mixing and centrifugation with a sodium hydroxide solution, and taking supernatant; (2) adding formic acid, anhydrous magnesium sulfate, sodium chloride and acetonitrile into the supernatant, carrying out vortex centrifugation, taking the supernatant, freezing and filtering; (3) adding anhydrous magnesium sulfate, a 2% triethylamine solution, multi-walled carbon nanotubes and C18 powder into the filtrate for purification, and filtering after centrifugation to obtain a to-be-detected solution; (4) preparing a matrix blank solution from the negative blank grease through the same pretreatment, and preparing a standard solution with gradient concentration of 1-20ng / mL; and (5) performing quantitative analysis by adopting a matrix standard curve external standard method through an LC-MS / MS detection system. The method has the advantages of economy, simplicity, convenience, high accuracy and high sensitivity, is easy to popularize and use, and can meet the high-throughput detection requirement of phenolic pesticide residues in a complex grease matrix.

The invention relates to a liquid detergent composition comprising a first surfactant selected from fatty alcohol ether sulfates, a second surfactant selected from betaines, optionally at least one solvent selected from ethanol, propanol, isopropanol, ethylene glycol, butyl glycol, propylene glycol, polypropylene glycol, alcoholamine, monoethanolamine, glycerol and mixtures thereof, wherein the salt concentration in the composition is about 0.2 to about 10 wt.-% and wherein the salt is selected from the group consisting of sodium salts such as sodium chloride, sodium sulfate, sodium formate, sodium acetate or sodium propionate, potassium salts such as potassium chloride, potassium sulfate, potassium formate, potassium acetate or potassium propionate, magnesium salts such as magnesium chloride, magnesium sulfate, magnesium formate, magnesium acetate or magnesium propionate, and calcium salts such as calcium chloride, calcium sulfate, calcium formate, calcium acetate or calcium propionate, and mixtures thereof, and wherein the composition is a concentrate that can be diluted with water while maintaining or increasing the viscosity.The present invention further relates to the use of such a cleaning composition for cleaning hard surfaces, in particular dishes, and to a process for preparing a cleaning composition, the process comprising diluting the concentrated liquid cleaning composition with water.

The invention discloses a device and a method for testing impermeability of chloride ions in subsea tunnel concrete, belongs to the technical field of building industries, establishes the relationship among the total amount of a sodium chloride solution, the penetration depth of the chloride ions, the permeability coefficient of the chloride ions and the resistivity, and innovatively provides a method for detecting the permeability coefficient of the chloride ions based on the resistivity. And a precise determination model for determining the concrete chloride ion diffusion depth and the chloride ion diffusion coefficient through the resistivity is constructed. The detection device designed by the invention comprises a test piece forming mold, a test piece placement platform, a pressurization permeation module, a resistivity test module, a central control system and a computer output system, and can be suitable for evaluating the chloride ion impermeability of concrete structures serving in environments with different seawater depths and different seawater concentrations. The total amount of the sodium chloride solution, the chloride ion penetration depth and the chloride ion penetration resistance coefficient in the subsea tunnel concrete can be accurately measured, and the device has the advantages of being easy and convenient to operate and high in intelligent degree.

The invention belongs to the technical field of sodium bicarbonate preparation, and particularly relates to a method for preparing sodium bicarbonate through sodium waste salt resource conversion. In order to solve the problems of low yield and low purity of sodium bicarbonate, sodium chloride, sodium sulfate or a mixed salt of sodium chloride and sodium sulfate is used as a raw material and is subjected to double decomposition reaction with ammonium bicarbonate. After the reaction is finished, a sodium bicarbonate crude product and mother liquor are obtained through solid-liquid separation, sodium bicarbonate precipitation of the mother liquor is further promoted by adding a salting-out agent into the mother liquor, then the yield of sodium bicarbonate is increased, the used salting-out agent can be recycled, and the purity of the sodium bicarbonate product is improved in a washing mode. According to the method for improving the yield and purity of sodium bicarbonate prepared from sodium chloride / sodium sulfate, a feasible scheme is provided for resource utilization of industrial waste salt and high-salt wastewater.

The invention discloses a preparation process of berberine hydrochloride, and belongs to the technical field of berberine production. The invention relates to a berberine hydrochloride preparation process, which comprises: S1, mixing a ferric sulfate-aluminum sulfate composite salt, sodium chloride, zinc chloride and anhydrous formic acid, pre-activating, adding N-2, 3-dimethoxybenzyl homopiperony lamine hydrochloride, dropwise adding a glyoxal mixed solution, and carrying out a reflux reaction. And S2, cooling the reaction liquid until a solid is separated out, filtering, adding a filter cake and diatomite into purified water, stirring, adjusting alkali, heating, and continuously stirring for 0.5-1 hour. Cooling and filtering, and reserving filtrate; s3, adjusting the acidity of the filtrate, cooling and growing crystals; and filtering, rinsing a filter cake, and carrying out vacuum drying on the filter cake to obtain berberine hydrochloride. The berberine hydrochloride prepared by the method is high in yield and purity, and the preparation process is safe, short in flow and friendly to human bodies and environment.

The invention discloses an anti-freezing solution for improving the survival rate of sperms of Chinese prawns and a cryopreservation method of the anti-freezing solution, and belongs to the technical field of low-temperature biology and reproductive science. The invention provides an anti-freezing solution for cryopreservation of sperms of Chinese prawns, which comprises a basic solution and an anti-freezing agent, and the anti-freezing agent is dimethyl sulfoxide with the volume fraction of 10% or glycerol with the volume fraction of 10%; the basic liquid contains 23.69 g of sodium chloride, 1.1 g of potassium chloride, 14.8 g of magnesium chloride hexahydrate, 4.3 g of sodium sulfate, 0.23 g of sodium bicarbonate, 1.12 g of calcium chloride and distilled water with the constant volume of 1000 mL. According to the cryopreservation method provided by the invention, 10% dimethyl sulfoxide or 10% glycerol is adopted as an antifreeze agent, the sperm density is controlled to be 1 * 10 < 7 > / mL, and step-by-step cooling is carried out, so that the survival rate of unfrozen sperms reaches 90% or above. The long-term preservation effect of the Chinese prawn sperms is remarkably improved, and the method is suitable for germplasm resource protection and efficient breeding.