48 results about "Calcium propanoate" patented technology

The utility model discloses a concentration tank for producing food grade calcium propionate, which comprises a concentration tank body, three supporting legs are fixedly arranged at the bottom end of the concentration tank body, a tank cover is fixedly arranged at the top end of the concentration tank body, a driving motor is fixedly arranged at the center of the top wall of the tank cover, the output end of the driving motor is in transmission connection with a rotating rod, and the rotating rod is in transmission connection with the bottom end of the concentration tank body. The concentration tank comprises a tank cover and a rotating rod, the rotating rod is rotatably mounted on the tank cover, a U-shaped scraping plate is fixedly mounted at the bottom end of the rotating rod and attached to the inner wall of the concentration tank body, a rotating plate is fixedly welded to the rotating rod, and an inner gear ring is arranged above the rotating plate. When raw materials are concentrated and processed, the driving motor can drive the rotating plate to rotate through the rotating rod, so that the plurality of stirring rods can rotate through meshed connection of the gear and the inner gear ring when rotating around the rotating rod, the plurality of stirring rods are driven to stir the raw materials, and the stirring uniformity of the raw materials is improved; the concentration effect of the raw materials is improved.

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 calcium propionate raw material fermentation device, and particularly relates to the technical field of ferment.The calcium propionate raw material fermentation device comprises a fermentation tank, a second sealing cover is fixedly installed on the top face of the fermentation tank, a biological filter membrane is placed in a second filter cone, and then a calcium propionate raw material enters a first mounting frame through an electric valve; furthermore, a plurality of second adjusting blocks at the bottom of an adjusting plate can be in continuous contact with a first adjusting block and enable a second filter cone to move up and down in a reciprocating manner, then the second filter cone moves upwards to enable a calcium propionate raw material in the second filter cone to be in intermittent contact with a material scraping strip, and at the moment, the material scraping strip intermittently pushes the calcium propionate raw material; the powder granularity of the calcium propionate raw material is greater than the filtering aperture of the biological filtering membrane, so that the fermentation liquor in the second filtering funnel can continuously filter out microorganisms and fine impurities in the calcium propionate raw material from the holes of the biological filtering membrane; and thus, the problem that microorganisms and fine impurities in the calcium propionate raw material cannot be separated and filtered due to accumulation of the calcium propionate raw material can be avoided.

The utility model discloses a constant-temperature extraction tank for producing natural calcium propionate, which comprises an extraction tank for extracting calcium propionate, a heat preservation shell for preserving heat of the extraction tank, a stirring shaft for promoting the reaction rate, a driving device for driving the stirring shaft to rotate, a coil pipe for preserving heat of propionic acid mixed liquor, and a water spraying device for preventing calcium propionate from sinking to the bottom, the heat preservation shell is vertically connected to the outer side of the extraction tank, the two stirring shafts are vertically connected to a top plate in the extraction tank, the driving device is fixed to the upper portion of the top plate of the extraction tank and fixedly connected with the stirring shafts, and the coil pipe is arranged in the extraction tank and vertically connected to the inner wall of the extraction tank. The water spraying device is located in the extraction tank and fixedly connected to the bottom plate of the extraction tank, and the phenomenon that calcium propionate sinks and accumulates on the bottom plate of the extraction tank and blocks the discharge port of the extraction tank in a calcium propionate precipitation state is avoided.

This invention discloses a method for eliminating moss growth on macadamia nut leaves, relating to the field of agricultural planting technology. The specific method involves spraying a moss-removing agent onto the macadamia nut leaves during the moss occurrence period, applying moss inhibitor I to the main stem, and applying moss inhibitor II to the soil surface around the main stem. The moss-removing agent comprises the following raw materials in parts by weight: 40-50 parts of allicin, 15-24 parts of urea, 5-18 parts of calcium propionate, 20-27 parts of calcium sulfate, 10-17 parts of calcium chloride, 20-35 parts of vegetable oil, 1-10 parts of titanium dioxide, 1-5 parts of glutathione, and 1-3 parts of dispersant. This invention solves the problems of slow effectiveness, short duration of action, and low plant safety in current macadamia nut leaf moss control methods, achieving highly efficient control.

The present invention relates to the field of fermentation technology, and in particular to a calcium propionate fermentation device, comprising a fermentation tank body, a rotating cylinder and a feed rack installed on the top of the fermentation tank body, a first bearing is fixedly installed at the center of the top of the fermentation tank body by bolts, a rotating cylinder is connected to the fermentation tank body at the center of the first bearing, a rotating stirring blade is fixedly installed at the bottom of the rotating cylinder in the fermentation tank body by bolts, a plurality of support rods are fixedly installed at the center of one side of the top of the fermentation tank body by bolts, and a feed rack is fixedly installed between the tops of the support rods by bolts. The present invention drives the stable lifting movement of the lifting block by a screw rod, and the lifting block drives the rack plate on the limit base to reciprocate back and forth through the meshing of the rotating plate, the connecting plate, the rotating rod and the half gear during the movement, and the movement of the rack plate controls the arc cleaning rod through the movable block and the movable rod, so as to achieve scraping and cleaning of the inner wall of the fermentation tank body, with good cleaning effect and stable structure.

The invention discloses a normal-temperature fresh-keeping method for steamed stuffed buns. According to the fresh-keeping method, the steamed stuffed buns are kept fresh at the normal temperature in a composite mode of adding a compound preservative and a fresh-keeping material and performing controlled atmosphere; the compound preservative comprises calcium propionate, sodium diacetate and epsilon-polylysine and is added in the preparation process of the steamed stuffed bun, the fresh-keeping material and the modified atmosphere are added and carried out in the packaging process, and stuffing adopted by the steamed stuffed bun is non-pre-cooked stuffing. According to the method, the steamed stuffed buns are preserved in a composite mode of simultaneously adding the compound preservative, performing air conditioning and adding the preservation material, so that the fresh quality of the steamed stuffed buns can be effectively maintained, the steamed stuffed buns have good color, flavor, texture, water binding capacity and nutrition, the storage period of the steamed stuffed buns at normal temperature is remarkably prolonged, and the quality of the steamed stuffed buns is improved. The method has the advantages of convenience in transportation, continuous production and the like, and has wide market prospects.

The present invention discloses a production system for calcium propionate, comprising a batching tank, a continuous flow microchannel reactor, a membrane filter, a fixed bed refining device, a spray dryer, and a controller. The batching tank is provided with a stirring assembly at the bottom thereof, the stirring assembly being electrically connected to the controller. The batching tank is provided with a water inlet pipe for conveying deionized water and a feed pipe for conveying calcium oxide powder or calcium hydroxide powder. A second delivery pump is provided on the connecting channel between the discharge port of the continuous flow microchannel reactor and the liquid inlet of the membrane filter. A third delivery pump is provided on the connecting channel between the liquid discharge port of the membrane filter and the liquid inlet of the fixed bed refining device. A fourth delivery pump is provided on the connecting channel between the liquid discharge port of the fixed bed refining device and the feed port of the spray dryer. The present invention provides a production system for calcium propionate, which can achieve continuous production of calcium propionate, reduce production costs of calcium propionate, and improve production efficiency.

The invention provides a mildewproof and antibacterial edible packaging film as well as a preparation method and application thereof. The mildewproof and antibacterial edible packaging film comprises soybean protein isolate, carrageenan, pullulan, modified cellulose, a plasticizer, a reinforcing agent and a preservative. According to the application, a six-element synergistic system of modified cellulose, soybean protein isolate, pullulan, carrageenan, lysine and calcium propionate is formed; the modified cellulose is used as a film forming main body, so that the water sensitivity is low and is not easily influenced by environmental temperature and humidity; the soybean protein isolate and the pullulan synergistically provide high barrier property; carrageenan improves the mechanical property and compactness of the film in a blending system; free calcium of calcium propionate provides a bridge effect for crosslinking of protein and carrageenan, and the mechanical property and compact structure of the film are improved; lysine and a blending system can form a'charge-hydrogen bond-hydrophobicity 'multi-synergistic network, so that the mechanical and barrier properties of the film are improved, and meanwhile, the mildew resistance of calcium propionate is coordinated. The film can meet the packaging of superfine powder materials, and is applied to the extreme temperature and humidity environment with the temperature ranging from-20 DEG C to 50 DEG C and the RH ranging from 30% to 95%.

The present invention relates to a process for the preparation of calcium dipropionate, comprising the steps a) introduction of a solid mixture of 0% to 100% calcium oxide and 100% to 0% calcium hydroxide into a pressure-resistant solid mixing reactor, b) Start of the moderation of the internal pressure of the pressure-resistant solid-mixing reactor by introducing inert gas, c) Addition of propionic acid to the solid mixture, d) chemical conversion of the solid mixture, f) Obtaining solid calcium dipropionate after the end of the chemical reaction, characterized in that the chemical reaction takes place in an inert gas atmosphere with which the reaction pressure is constantly regulated between 2 bar and 6 bar during the chemical reaction.

The utility model discloses a fluidized bed for producing calcium propionate, which comprises a box body, supporting legs are arranged at four corners of the bottom of the box body, supporting pads are arranged at the bottoms of the supporting legs, a fluidized bed body is arranged on one side of the box body, and a discharge port is arranged outside one side, close to the box body, of the fluidized bed body. The screening assembly comprises a plurality of springs fixedly connected to the two sides of the interior of the box body. The output shaft of the motor drives the disc to rotate so as to drive the fixed column eccentrically fixed on the disc to rotate, so that the connecting rod on the fixed column pushes the push plate connected with the shaft block to move, and the two movable rods connected with the push plate drive calcium propionate at the top of the sieve plate to reciprocate; calcium propionate dust passing through the second screening plate falls into the dust collecting box through screening holes in the second screening plate, and meanwhile calcium propionate screened on the first screening plate and the second screening plate is discharged from a screening opening.

The invention discloses a method for simultaneously preparing calcium propionate and magnesium hydroxide from natural dolomite, which comprises the following steps: adding dolomite powder into a propionic acid aqueous solution, stirring for 1-6 hours at 10-90 DEG C, then filtering, and collecting filtrate A; adding calcium hydroxide into the filtrate A, standing at 10-90 DEG C for 10-50 minutes, then filtering, and respectively collecting precipitates and filtrate B; drying the precipitate to obtain magnesium hydroxide, and drying the filtrate B at low temperature to obtain calcium propionate; according to the method, natural dolomite is directly acidified by using propionic acid, the total yield of calcium propionate is increased by adding calcium hydroxide to neutralize excessive propionic acid, waste of propionic acid is avoided, and calcium hydroxide precipitates magnesium ions, so that calcium propionate and magnesium hydroxide products are obtained through separation; compared with the prior art, the raw material cost is lower, natural dolomite does not need to be calcined, the process is simple, energy consumption is low, preparation conditions are green and mild, and the method has industrial application prospects.

The invention relates to the technical field of fermentation tanks, and discloses a calcium propionate fermentation device which comprises a fermentation tank body, and a tank cover is rotatably mounted on the fermentation tank body; the stirring assembly is mounted on the tank cover, and the stirring assembly and the tank cover are coaxially arranged; the cleaning assembly is mounted on the tank cover, and the cleaning assembly and the tank cover are eccentrically arranged; the rotating assembly is used for driving the cleaning assembly to rotate along the axis of the fermentation tank body; compared with a traditional cleaning mode, the calcium propionate fermentation device provided by the invention has the advantages that the interior of the fermentation tank body can be thoroughly cleaned by adjusting the spray head in multiple angles and multiple directions, dead angles and residues are prevented from being cleaned, the cleaning efficiency and the quality of fermented products are remarkably improved, the stirring assembly does not need to be lifted for cleaning, and the production cost is reduced. The harm to a human body when the fermentation device is cleaned is also avoided.

An ink jet recording method includes transporting a recording medium by a transport unit and ejecting an ink composition from an ink jet head to cause the ink composition to adhere to the recording medium that is being transported. The ink jet head is a line head having a length of a recording area of the recording medium or more in a direction crossing a direction of the transporting. The recording medium is an absorbent recording medium. The ink composition is a red-based aqueous ink containing a pigment. The pigment contains an azo-based pigment. A viscosity η1 of a mixed liquid when 10 parts by mass of the ink composition and 1 part by mass of an aqueous calcium propionate solution with a concentration of a Ca element of 0.3 mol / L are mixed together is less than 2.0 times a viscosity η0 of the ink composition.

The invention discloses a triploid rainbow trout juvenile fish feed and application thereof. The formula of the feed comprises 300.0 g / kg of fish meal, 120.0 g / kg of krill meal, 100.0 g / kg of soybean meal, 80.0 g / kg of soybean protein concentrate, 80.0 g / kg of corn protein, 20.0 g / kg of wheat bran powder, 165.4 g / kg of wheat flour and a mixture of different proportions of fish oil and dephenolized cottonseed oil, the proportion of the dephenolized cottonseed oil replacing the fish oil in the mixture is 25%-100%, and 10.0 g / kg of premix, 0.2 g / kg of astaxanthin, 3.0 g / kg of choline chloride, 1.0 g / kg of EDTA, 0.3 g / kg of betaine and 0.1 g / kg of calcium propionate are added. The feed disclosed by the invention is applied to culture of juvenile triploid rainbow trout, and can be used for remarkably regulating fatty acid composition of a fish body, improving muscle texture and enhancing oxidation resistance and heat stress resistance of the liver on the premise of not influencing growth performance, so that dependence on fish oil is reduced, and green, efficient and sustainable development of aquaculture is promoted.

The invention provides an ink jet recording method and a recording apparatus. The ink jet recording method is excellent in clogging restorability, color rendering property and storage stability. The inkjet recording method includes: a transport step of transporting a recording medium by a transport unit; and an attachment step of ejecting an ink composition from an inkjet head, which is a line head having a length equal to or greater than a recording region of the recording medium in a direction intersecting the direction of conveyance, and attaching the ink composition to the recording medium being an absorbent recording medium, the ink composition is a red water-based ink containing a pigment, the pigment contains an azo pigment, and when 10 parts by mass of the ink composition and 1 part by mass of a calcium propionate aqueous solution having a Ca element concentration of 0.3 mol / L are mixed, the viscosity [eta] 1 of a mixed solution is less than 2.0 times the viscosity [eta] 0 of the ink composition.

The invention belongs to the field of pet supplies, and particularly relates to tea cat litter and a preparation method thereof. The tea cat litter comprises the following raw materials in parts by weight: 30-50 parts of tea residues, 15-25 parts of starch, 15-25 parts of corn flour, 20-30 parts of bean dregs, 3-5 parts of guar gum, 0.3-0.4 part of calcium propionate, 4-6 parts of sodium benzoate, 8-12 parts of white oil and 10-15 parts of water. The cat litter is environment-friendly, high in deodorization performance, low in dust content, simple in preparation process and suitable for industrial production.

The utility model discloses a purification device for food-grade calcium propionate production, which comprises a distiller and a condenser, the condenser is connected to one side of the distiller, and the other side of the distiller is connected with a preheating assembly. The preheating assembly comprises a preheating box, a heating cavity, a heating belt, a blow-down valve, a liquid feeding pump, a discharging guide pipe, a stirring structure, a temperature sensor and a water inlet pipe, the stirring structure comprises a driving shaft, a transmission shell, a stirring shaft, a stirrer, a spiral blade, a worm, a worm gear and a gear motor, and the liquid feeding pump is fixedly installed on the upper portion of the outer surface of one side of the preheating box; and one side of the liquid feeding pump is connected with a liquid pumping pipe. According to the purification device for food-grade calcium propionate production, the preheating assembly is arranged, raw materials in the preheating box can be heated through the heating belt, the preheating effect is improved, the heating time of the raw materials in the preheating box is shortened, and the materials in the preheating box are heated more evenly through the stirring structure.

The invention relates to a polymer film obtainable from the crosslinking reaction between pectin and carboxymethylcellulose in the presence of an organic calcium salt and a plasticiser. The film can comprise zeolite, loaded or not loaded with silver ions. The organic calcium salt is selected from: calcium propionate, calcium acetate, calcium lactate, calcium sorbate, calcium glutamate, calcium oleate, calcium palmitate, calcium laurate, calcium stearate and calcium myristate. The plasticising agent is a saturated or unsaturated fatty acid selected from: oleic acid and palmitic, stearic, lauric, myristic, myristoleic, palmitoleic and linoleic acid; polyethylene glycol; glycerol; glycerol derivatives; and citric acid salts, preferably sodium citrate. The polymer film can be laminated to at least one film / layer of plastic material, possibly biodegradable, or to a layer of paper and used for packaging foods, in particular baked products, with the aim of preserving them and extending their shelf life.

The invention relates to the technical field of calcium propionate preparation, in particular to a drying device for preparing calcium propionate through a fermentation method, which comprises a drying tank, a return pipe is arranged at the bottom of the drying tank, a spraying assembly, a heat supply assembly and a transfer assembly are arranged in the drying tank, the transfer assembly comprises a lifting hopper and a stirring mechanism, and the stirring mechanism comprises a fixing rod, a rotating sleeve and a stirring arm. A spiral threaded groove is formed in the outer wall of the fixing rod, a transverse pin is fixedly arranged at the lower end of the rotating sleeve, one end of the transverse pin is inserted into the threaded groove, and a discharging valve is arranged at the small-caliber end of the lifting hopper and comprises an elastic valve used for blocking powder. The lower end of the drying tank is internally provided with an upper ejecting piece used for abutting against the elastic valve upwards to enable powder to fall down. During spray drying, the device temporarily stores powder through the lifting hopper, and the powder falling into the lifting hopper can be stirred by the stirring mechanism, so that the drying of wet powder is accelerated, and the drying efficiency is improved.

The utility model discloses a drying device for producing and processing calcium propionate, which comprises an outer shell and an inner shell, the inner shell is fixed inside the outer shell, the top of the inner shell is fixedly connected with a feed pipe, the bottom end of the inner shell is of a conical structure and is fixedly inserted with a discharge pipe, the outer wall of the outer shell is fixedly connected with a heating fan, and the outer wall of the heating fan is fixedly connected with an air blower. The output end of the heating fan is fixedly connected with a flow guide pipe, one end of the flow guide pipe is fixedly communicated with the top of the inner shell, the top of the inner shell is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a shaft rod, and the shaft rod penetrates through the inner shell and is fixedly connected with a plurality of stirring plates; according to the drying device for calcium propionate production and processing, by arranging the built-in stirring assembly, materials can be kept loose, then the material drying and processing speed is increased, the processing efficiency is improved, and internal materials can be prevented from being attached to the discharging position.

The application discloses a method for efficiently preparing beta-amino propionic acid calcium from beta-amino propionitrile, and comprises the following steps: beta-amino propionitrile and a calcium salt solution are reacted in the presence of a catalyst and an additive, and microwave radiation is used to promote the reaction; after the reaction solution is filtered and deaminated, the solution is concentrated, cooled and alcohol crystallized to obtain beta-amino propionic acid calcium crystals which can be used for the production of calcium pantothenate; wherein the catalyst is a transition metal complex, and the additive is a phase transfer catalyst or a buffer metal salt. The application has the advantages of simple process, high yield and high reaction efficiency.

The present invention relates to a fermentationally produced propionate powder comprising: 25 wt.% to 60 wt.% of propionic acid equivalents; 3 wt.% to 16 wt.% of an acetic acid equivalent; 2 wt.% to 12 wt.% of a succinic acid equivalent; 0.1 mol to 0.8 mol of a Ca < 2 + > / mol propionate; 0 mol to 1.0 mol of a Na < + > / mol propionate; 0 mol to 1.0 mol of a K < + > / mol propionate; wherein 0.4 < = ([Na +] + [K +]) / [propionate] < = 1.4; 1.1 < = (2 [Ca < 2 + >] + [Na +] + [K +]) / [propionate] < = 2.8; [Ca < 2 + >] represents the concentration of Ca < 2 + > and takes mmol / g powder as a unit; [Na < + >] represents the concentration of Na < + >, and mmol / g powder is taken as a unit; [K < + >] represents the concentration of K < + >, and mmol / g powder is taken as a unit; [propionate] represents the concentration of propionate in mmol / g powder. These fermentationally produced propionate powders are superior to fermentationally produced propionate powders in which the majority of the propionate is composed of calcium, sodium or potassium propionate, in particular in terms of taste, odor and / or flow properties.

This application relates to equipment for producing high-purity calcium propionate additives, belonging to the field of additive preparation technology. It includes a drying cylinder with a feed pipe on its side wall and a discharge port on the side wall below the feed pipe. A sealing plug is embedded in the inner wall of the discharge port. A base is located on the lower side of the drying cylinder, and a vibrating rod is mounted on the upper surface of the base. A vibrating tube is located on the lower surface of the drying cylinder, with the vibrating rod inside the vibrating tube. A mounting block is located on the side wall of the vibrating tube, and a rotating groove is formed on the side of the mounting block away from the vibrating tube. A rotating ball is rotatably connected to the inner wall of the rotating groove. A connecting rod is located at the end of the rotating ball away from the drying cylinder, and a driving rod is located on the side wall of the connecting rod. A driving assembly is located on the base to drive the driving rod. This application achieves energy saving and emission reduction in the drying process of calcium propionate additives.

The invention discloses a preparation method of calcium propionate, which comprises the following steps: S1, preparation of an organic wheat carbon source: putting organic wheat flour into a fermentation tank, diluting until the concentration is 20-25%, adjusting the pH value to 5.5-6, adding protease and amylase which account for 0.1-0.2% of the mass of the organic wheat flour, and liquefying at 90-110 DEG C for 1 hour; adding saccharifying enzyme and saccharifying for 8-15 hours to prepare an organic wheat carbon source; s2, expanding culture of strains: in a sterile environment, inoculating an original strain of propionibacterium into an LB culture medium for culture to obtain well-grown seeds; s3, inoculating grown seeds into a seed tank for culturing, wherein the seed tank comprises an organic wheat carbon source; the seed tank is connected into the fermentation tank; s4, deslagging, decolorizing, concentrating and finely filtering to obtain calcium propionate liquid; the method has the characteristics of simple process, simple fermentation formula, high strain metabolism expression and no residue; and the fermentation period is effectively shortened.

The invention discloses a preparation method of milk flavor bread. The preparation method comprises the following steps: S1, a dough preparation process: the prepared raw materials comprise the following components in percentage by mass: 38-40% of high gluten flour, 15-17% of sour dough, 11-12% of water, 0.6-0.8% of salt, 11-12% of white sugar, 0.9-1% of yeast, 12-13% of glycerol, 1-2% of eggs, 0.7-0.8% of an enzyme preparation, 0.7-0.8% of sorbitol, 0.7-0.8% of seaweed syrup, 0.7-0.8% of maltitol, 5-6% of butter, 0.3-0.4% of emulsified oil, 0.01-0.03% of carotene, 0.5-0.7% of milk flavor powder, 0.01-0.03% of milk flavor powder, 0.01-0.03% of calcium propionate and 0.02-0.04% of sorbic acid; the bread product prepared by the method is golden yellow in color, full in appearance and fine and uniform in internal tissue; and after long-term storage, the milk-flavor milk tea is soft in mouth feel, free of residue falling and rich in milk flavor, and is gradually popularized and favored in the market in all age groups such as teenagers and old people.

The invention relates to the field of organic chemistry, and discloses a method for preparing calcium beta-aminopropionate, which comprises the following steps: (1) in the presence of a solvent, mixing acrylic acid and a calcification agent, and filtering; (2) contacting the filtrate obtained in the step (1) with an ammonia source; and (3) purifying the mixture obtained in the step (2) to obtain the beta-alanine calcium propionate. Preferably, the step (2) is carried out in a microchannel reactor. According to the method provided by the invention, the calcium acrylate is used for replacing acrylic acid to carry out addition reaction with the ammonia source, the generation amount of byproducts, especially iminodipropionic acid (calcium), is lower, the selectivity of a target product is higher, and the utilization rate of raw materials can be improved. Furthermore, by using the micro-channel reactor, the reaction time can be shortened, the generation of byproducts is reduced, the raw material conversion rate and the product yield are improved, continuous reaction can be realized, and industrial production is facilitated.

The invention provides a method for recycling calcium salt slag in a calcium pantothenate synthesis process, which comprises the following steps: 1) carrying out solvent removal on the calcium salt slag by using a horizontal double-shaft dryer to obtain dealcoholized calcium salt slag powder; 2) pulping and mixing the calcium salt slag powder and water to obtain calcium salt slag water slurry; 3) reacting the calcium salt slag aqueous solution with sulfuric acid to obtain a neutralization solution; 4) carrying out solid-liquid separation on the neutralized liquid to obtain calcium sulfate residues and a beta-aminopropionic acid aqueous solution; 5) carrying out continuous decompression dehydration concentration on the beta-aminopropionic acid aqueous solution to obtain a concentrated solution and water; returning the water to the step 2) for mechanical application; (6) cooling and crystallizing the concentrated solution, and centrifugally separating to obtain a beta-aminopropionic acid wet product and a mother solution; and returning the mother liquor to the step (5) for mechanical application. According to the method, residual calcium propionate and methanol in the calcium salt slag can be recycled, the material utilization rate is increased, and the production cost is reduced; and after residual organic matters in the calcium salt slag are completely recovered, the total amount of dangerous solid wastes is greatly reduced, so that the solid waste treatment cost is reduced.

The present application relates to a kind of calcium propionate filter mud recycling device, including filter mud water tank, replacement filter screen plate, mud activity structure, the mud activity structure is connected in the inner top side of filter mud water tank, and mud activity structure can be active in the inner top side of filter mud water tank, the replacement filter screen plate is fixed in the top side of mud activity structure.The present application optimizes the setting of calcium propionate filter mud recycling device, changes the method of traditional precipitation, designs a single-layer filter screen to hold up calcium propionate filter mud, then carries out simple water filtration, and single-layer filter screen can be used as drying carrier, improves the efficiency of precipitation, and is suitable for use.

The invention discloses bread containing mulberry leaf extract and a preparation method of the bread, and relates to the technical field of food processing. The invention provides bread containing a mulberry leaf extract. The bread comprises flour, sugar, a bread improver, calcium propionate, salt, the mulberry leaf extract, yeast, eggs, water and butter. The mass ratio of the butter to the flour is (8-16): 100; the mass ratio of the mulberry leaf extract to the flour is (0.8-1.5): 100. According to the bread containing the mulberry leaf extract, the postprandial blood sugar offline area can be remarkably reduced, the overall blood sugar rising process is delayed, blood sample peak fluctuation is reduced, and the outstanding GI reducing effect is achieved.