CN112808210B - Preparation method of palm oil fatty acid aluminum - Google Patents
Preparation method of palm oil fatty acid aluminum Download PDFInfo
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- CN112808210B CN112808210B CN202011616307.6A CN202011616307A CN112808210B CN 112808210 B CN112808210 B CN 112808210B CN 202011616307 A CN202011616307 A CN 202011616307A CN 112808210 B CN112808210 B CN 112808210B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J14/00—Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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Abstract
The invention provides a preparation method of palm oil fatty acid aluminum, belonging to the technical field of chemical preparation, and comprising the following steps of: dissolving aluminum trichloride in deionized water, dropwise adding sodium hydroxide until the pH value is =9 to form white precipitate, adding gelatin and palm oil, and strongly pulping and dispersing for 2 hours; step two, heating to a reflux state, keeping for 2 hours, and dropwise adding the sodium hydroxide aqueous solution after 2-3 hours; step three, filtering after refluxing and heat preservation for 6-12 hours; and step four, washing the filter cake, adding the filter cake into an aluminum trichloride aqueous solution, continuously heating and refluxing for 2-4 hours, filtering and washing, and repeatedly using the filtrate.
Description
Technical Field
The invention belongs to the technical field of chemical preparation, and particularly relates to a preparation method of palm oil aluminum fatty acid.
Background
The aluminum stearate is toxic white or yellowish powder, is insoluble in water, ethanol and diethyl ether, and is soluble in solvents such as alkali, turpentine, mineral oil, petroleum, kerosene and benzene. When strong acid is encountered, it is decomposed into stearic acid and its corresponding salt. The product is used as a heat stabilizer and a lubricant of polyvinyl chloride plastics, an anti-settling agent and a drier in the paint industry, a waterproof agent of fabrics, a thickening agent of lubricating oil and the like, but the saponification rate and the purity of a final product are unsatisfactory in the conventional method, so that a large amount of palm oil is wasted. One of the reasons for the low saponification rate of aluminum stearate and the low purity of the final product is that the oil phase and the aqueous phase are not miscible in the reaction, and the oil phase tends to float and float on the water surface because it is less dense than the aqueous phase, so that mere agitation under water is not sufficient to promote sufficient contact between the oil phase and the aqueous phase; it is also necessary to dissolve the oil droplets in the floating process and the oil phase floating on the liquid surface into the solution sufficiently. In addition, when the existing stirring equipment is used, the situation that the stirring shaft is likely to vibrate when the load of the stirring shaft is too heavy occurs, and the vibration of the stirring shaft can not only cause the stirring equipment to work normally, but also damage components such as a motor and the like.
Disclosure of Invention
Aiming at the problems, the invention provides a preparation method of palm oil fatty acid aluminum, so as to solve the technical problems.
The preparation method of the palm oil aluminum fatty acid comprises a first stirring blade and a first stirring shaft, the preparation equipment further comprises a liquid level stirring assembly and a shockproof assembly, the first stirring shaft is fixedly connected with eight first stirring blades, four stirring blades are fixedly connected to the outer side of the first connecting sleeve at equal angular intervals, the first connecting sleeve is sleeved on the first stirring shaft, and the first connecting sleeve and the first stirring shaft are fixedly connected through bolts; the liquid level stirring assembly is positioned at the uppermost part, and the shockproof assembly is positioned between the two groups of first stirring blades;
a second connecting sleeve is sleeved at the top end of the first stirring shaft, and a protective cover is fixedly connected to the bottom of the second connecting sleeve; the protective cover, the connecting sleeve II and the central line of the stirring shaft I are superposed; a first gear is fixedly sleeved on the first stirring shaft and fixedly connected to the first stirring shaft through a bolt; the tooth part of the first gear is positioned on the upper surface of the first gear; the inner side and the outer side of the protective cover are both fixedly connected with a plurality of limiting sleeves, the limiting sleeves horizontally penetrate through the protective cover, and the central lines of the limiting sleeves point to the center of the protective cover;
the liquid level stirring assembly comprises a stirring shaft II, a stirring blade II, a connecting sleeve III and a bearing, wherein three stirring blades II are fixedly connected to the outer side surface of the connecting sleeve III at intervals of an angle, and the connecting sleeve III is fixedly connected to the stirring shaft II through a bolt; three stirring blades on two adjacent connecting sleeves on the same stirring shaft II are spaced by 60 degrees in angle; part of the second stirring blades are exposed out of the liquid level, and the rest of the second stirring blades are positioned below the liquid level;
one side of the stirring shaft II, which is close to the protective cover, penetrates through the pair of limiting sleeves and the protective cover; one end of the second stirring shaft is positioned outside the protective cover, and the other end of the second stirring shaft is positioned inside the protective cover; the stirring shaft two-way is connected to two ends of the pair of limiting sleeves in a limiting way through nuts and gaskets; a gear II is fixedly sleeved at one end of the stirring shaft II, which is positioned in the protective cover; the gear II is fixedly connected with the stirring shaft II through a bolt; the second gear is meshed with the first gear;
bearing grooves are formed in the pair of limiting sleeves, bearings are fixedly clamped in the bearing grooves, the bearing sleeves are sleeved on a second stirring shaft, and the outer wall of the second stirring shaft is in close contact with the inner wall of the limiting sleeve;
a connecting sleeve IV is fixedly sleeved on the first stirring shaft, the outer wall of the connecting sleeve IV is fixedly connected with a shockproof assembly, and each shockproof assembly comprises a fixed rod, a movable rod and a spring; one end of the fixing rod is fixedly connected with a first connecting plate, the other end of the fixing rod is fixedly connected with a universal ball seat, the universal ball seat is fixedly connected with a connecting rod, and one end, far away from the universal ball seat, of the connecting rod is fixedly connected with a second connecting plate; one end of the movable rod is fixedly connected to the fourth connecting sleeve, and the other end of the movable rod is fixedly connected to the second connecting plate; two ends of the spring are respectively and fixedly connected with a third connecting plate, one third connecting plate is fixedly connected to the second connecting plate through a bolt, and the other third connecting plate is fixedly connected to the universal ball seat through a bolt; when the first stirring shaft does not deviate axially, the fixed rod, the movable rod and the spring are all perpendicular to the first stirring shaft, and the fixed rod, the movable rod and the spring are all located on the same horizontal line.
As the preferred technical scheme of the invention, the first connecting plate is provided with a threaded through hole.
As a preferable technical scheme of the invention, the limiting sleeves are three pairs, and the three pairs of limiting sleeves are distributed around the outer side of the protective cover at equal angular intervals.
As a preferred technical solution of the present invention, the shockproof assemblies are four pairs, and two adjacent shockproof assemblies are spaced by 90 °.
As a preferable technical scheme of the invention, the stirring shaft II is provided with two threaded areas, the two threaded areas are respectively positioned at the outer sides of the two ends of the limiting sleeve, and the two threaded areas are in threaded connection with the nut.
The preparation method of the palm oil fatty acid aluminum comprises the following steps:
dissolving aluminum trichloride in deionized water, dropwise adding sodium hydroxide until the pH value is =9 to form white precipitate, adding gelatin and palm oil, and strongly pulping and dispersing for 2 hours;
step two, heating to a reflux state, keeping for 2 hours, and dripping the sodium hydroxide aqueous solution after 2-3 hours;
step three, filtering after refluxing and heat preservation for 6-12 hours;
and step four, washing the filter cake, adding the filter cake into an aluminum trichloride aqueous solution, continuously heating and refluxing for 2-4 hours, filtering and washing, and repeatedly using the filtrate.
According to a preferred embodiment of the present invention, the mass ratio of the aluminum trichloride, the gelatin and the palm oil is 10.
In a preferred embodiment of the present invention, the sodium hydroxide aqueous solution has a mass concentration of 10% and is used in an amount of 2 times the mass of the palm oil.
As a preferable technical scheme of the invention, the concentration of the aluminum trichloride aqueous solution in the step four is 10 percent, and the mass of the aluminum trichloride aqueous solution is 5 times that of the filter cake.
The application of the aluminum palm oil fatty acid is to use the aluminum palm oil fatty acid as a heat stabilizer and a lubricant.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, by designing the liquid level stirring assembly, the stirring shaft drives the first gear to rotate, the first gear drives the second stirring shaft to horizontally rotate through the second meshing gear, and the second stirring shaft drives the second stirring blade to rotate at the liquid level and the area nearby the liquid level, so that an oil layer floating on the liquid level is fed into the liquid, and meanwhile, the liquid nearby the liquid level is pushed to flow deeply, and the liquid convection inside the reaction kettle is promoted; the limiting sleeve is arranged, so that sufficient support can be provided for the second stirring shaft, and the second stirring shaft is ensured to be stable in the rotation process; furthermore, the bearing groove is formed in the limiting sleeve, the bearing is clamped in the bearing groove, and the bearing sleeve is arranged on the second stirring shaft, so that the friction force between the second stirring shaft and the limiting sleeve can be effectively reduced, and the driving force of the liquid level stirring assembly is reduced.
2. In the invention, the fixing rod plays a role in limiting and supporting the whole shockproof assembly; when the first stirring shaft deflects, the movable rod and the fixed rod jointly act to limit the first stirring shaft, so that the first stirring shaft is prevented from deviating from the original position, the movable rod and the fixed rod are connected through the universal ball seat, and when the first stirring shaft vibrates, the vibration of the first stirring shaft can be reduced or eliminated through slight movement of the connecting position of the movable rod and the fixed rod; by providing the spring, the joint of the movable rod and the fixed rod can be returned to the original position by the restoring force of the spring.
3. According to the invention, through reasonable selection of raw materials, aluminum trichloride is utilized to form hydrate precipitate of aluminum hydroxide or aluminum oxide, the precipitate is flocculent precipitate, after gelatin and oil are added, strong pulping is carried out, a composition with extremely high dispersion degree can be formed, the oil and aluminum form good combination and dispersion, the grease and the aluminum react at high temperature, and caustic soda flakes are added as a catalyst, so that the reaction can be effectively promoted. And finally, treating the product by using an aluminum chloride solution, and replacing a small amount of incompletely decomposed sodium ions to obtain the high-purity palm oil aluminum fatty acid.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a first perspective structure of the present invention;
FIG. 2 is a schematic view of a second perspective structure of the present invention;
FIG. 3 is a schematic structural view of a first stirring shaft, a second stirring blade, a first gear, a second gear and the like in the invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of the liquid level stirring assembly of the present invention;
FIG. 6 is a schematic view of the installation structure of the liquid level stirring assembly of the present invention;
FIG. 7 is a schematic view of a connection structure of a bearing groove, a bearing, a stop collar and a protective cover according to the present invention;
FIG. 8 is a schematic view of a connection structure of a first stirring shaft and a base of a vibration-proof component in the invention;
FIG. 9 is a first perspective view of the anti-rattle assembly of the present invention;
FIG. 10 is a second perspective view of the anti-rattle assembly of the present invention;
FIG. 11 is a schematic view of the connection structure of the spring, the universal ball seat, the connecting plate, and the like.
The stirring device comprises a first stirring blade, a first stirring shaft, a 3-liquid level stirring assembly, a second stirring shaft, a second stirring blade, a 302-stirring blade, a 303-connecting sleeve III, a 304-bearing, a 305-nut, a 306-gasket, a 307-gear II, a 308-bearing groove, a 4-shockproof assembly, a 401-fixed rod, a 402-movable rod, a 403-spring, a 404-connecting plate I, a 405-universal ball seat, a 406-connecting rod, a 407-connecting plate II, a 408-connecting plate III, a 5-connecting sleeve I, a 6-connecting sleeve II, a 7-protective cover, an 8-gear I, a 9-limiting sleeve, a 10-connecting sleeve IV and an 11-threaded through hole.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 11, in conjunction with examples.
Example 1
as shown in fig. 3-4, a gear i 8 is fixedly sleeved on the stirring shaft i 2, and the gear i 8 is fixedly connected to the stirring shaft i 2 through a bolt; the tooth part of the first gear 8 is positioned on the upper surface of the first gear 8;
as shown in fig. 5-6, the liquid level stirring assembly 3 includes a second stirring shaft 301, a second stirring blade 302, a third connecting sleeve 303 and a bearing 304, the three second stirring blades 302 are fixedly connected to the outer side surface of the third connecting sleeve 303 at equal angular intervals, and the third connecting sleeve 303 is fixedly connected to the second stirring shaft 301 through a bolt; the angle interval of the three stirring blades on two adjacent connecting sleeves 303 on the same stirring shaft II 301 is 60 degrees; part of the second stirring blades 302 are exposed out of the liquid level, and the rest of the second stirring blades 302 are positioned below the liquid level;
one side of the stirring shaft II 301 close to the protective cover 7 penetrates through the pair of limiting sleeves 9 and the protective cover 7; one end of the second stirring shaft 301 is positioned outside the protective cover 7, and the other end of the second stirring shaft 301 is positioned inside the protective cover 7; two thread areas are formed in the second stirring shaft 301, the two thread areas are respectively located on the outer sides of two ends of the limiting sleeves 9, the two thread areas are in threaded connection with the nuts 305, and the second stirring shaft 301 is in limited connection with two ends of the limiting sleeves 9 through the nuts 305 and the gaskets 306; a second gear 307 is fixedly sleeved at one end of the second stirring shaft 301, which is positioned in the protective cover 7; the second gear 307 is fixedly connected with the second stirring shaft 301 through a bolt; the second gear 307 is meshed with the first gear 8;
as shown in fig. 7, a bearing groove 308 is formed in the pair of limiting sleeves 9, a bearing 304 is fixedly clamped in the bearing groove 308, the bearing 304 is sleeved on the second stirring shaft 301, and the outer wall of the second stirring shaft 301 is in close contact with the inner wall of the limiting sleeve 9.
The preparation method of palm oil fatty acid aluminum provided in example 1 includes the following steps:
dissolving 50g of aluminum trichloride in deionized water, dropwise adding a 10% sodium hydroxide aqueous solution until the pH value is =9 to form a white precipitate, adding 10g of gelatin and 250g of palm oil, and strongly pulping and dispersing for 2 hours;
step two, heating to a reflux state, keeping the reflux state for 2 hours, and dropwise adding a sodium hydroxide aqueous solution after 2-3 hours, wherein the total mass of the sodium hydroxide aqueous solution is 500g;
step three, filtering after refluxing and preserving heat for 6-12 hours;
step four, washing the filter cake, adding the filter cake into a 10% aluminum trichloride aqueous solution, continuously heating and refluxing for 2-4 hours, filtering and washing, and repeatedly applying the filtrate; the mass of the aluminum trichloride aqueous solution is 5 times of that of the filter cake.
The working principle is as follows: according to the invention, by designing the liquid level stirring assembly 3, the first stirring shaft 2 drives the first gear 8 to rotate, the first gear 8 drives the second stirring shaft 301 to horizontally rotate through the second meshing gear 307, the second stirring shaft 301 drives the second stirring blade 302 to rotate at the liquid level and the area nearby the liquid level, so that an oil layer floating on the liquid level is conveyed into the liquid, meanwhile, the liquid nearby the liquid level is also pushed to flow deeply, and the liquid convection inside the reaction kettle is promoted; the limiting sleeve 9 is arranged, so that sufficient support can be provided for the second stirring shaft 301, and the second stirring shaft 301 is ensured to be stable in time in the rotation process; further, through set up bearing groove 308 in stop collar 9, through with bearing 304 block in inside bearing groove 308, locate second 301 of (mixing) shaft with bearing 304 cover again, can effectively reduce the frictional force between second 301 of (mixing) shaft and the stop collar 9, reduce the drive power of liquid level stirring subassembly 3.
Example 2
The preparation method of the palm oil aluminum fatty acid provided by the embodiment 2 comprises the following steps:
step one, dissolving 100g of aluminum trichloride in deionized water, dropwise adding a 10% sodium hydroxide aqueous solution until the pH value is =9 to form a white precipitate, adding 20g of gelatin and 500g of palm oil, and strongly pulping and dispersing for 2 hours;
step two, heating to a reflux state, keeping the reflux state for 2 hours, and dripping the sodium hydroxide aqueous solution after 2-3 hours, wherein the total mass of the sodium hydroxide aqueous solution is 1000g;
step three, filtering after refluxing and preserving heat for 6-12 hours;
step four, after washing the filter cake, adding the filter cake into 10% aluminum trichloride aqueous solution, continuously heating and refluxing for 2-4 hours, filtering and washing, and repeatedly applying the filtrate; the mass of the aluminum trichloride aqueous solution is 5 times of that of the filter cake.
In the present embodiment, in the present invention, the fixing rod 401 has a limiting and supporting function on the entire anti-vibration assembly 4; when (mixing) shaft 2 takes place to deflect, movable rod 402 and dead lever 401 combined action carry out limiting displacement to (mixing) shaft 2, prevent that (mixing) shaft 2 from deviating original position, connect through universal ball seat 405 between movable rod 402 and the dead lever 401, when (mixing) shaft 2 takes place vibrations, can alleviate or eliminate (mixing) shaft 2's vibrations through the small removal of movable rod 402 and dead lever 401 hookup location department.
Example 3
Embodiment 3 is an improvement on embodiment 1, and as shown in fig. 11, the anti-vibration assembly 4 further includes a spring 403, two ends of the spring 403 are respectively and fixedly connected with a third connecting plate 408, one third connecting plate 408 is fixedly connected to a second connecting plate 407 through a bolt, and the other third connecting plate 408 is fixedly connected to a universal ball seat 405 through a bolt; when the stirring shaft I2 does not deviate axially, the fixed rod 401, the movable rod 402 and the spring 403 are all perpendicular to the stirring shaft I2, and the fixed rod 401, the movable rod 402 and the spring 403 are all on a horizontal line.
The preparation method of the aluminum palm oil fatty acid provided in embodiment 3 comprises the following steps:
step one, dissolving 200g of aluminum trichloride in deionized water, dropwise adding a 10% sodium hydroxide aqueous solution until the pH value is =9 to form a white precipitate, adding 40g of gelatin and 1000g of palm oil, and carrying out strong pulping and dispersing for 2 hours;
step two, heating to a reflux state, keeping the reflux state for 2 hours, and dropwise adding the sodium hydroxide aqueous solution after 2-3 hours, wherein the total mass of the sodium hydroxide aqueous solution is 2000g;
step three, filtering after refluxing and heat preservation for 6-12 hours;
step four, washing the filter cake, adding the filter cake into a 10% aluminum trichloride aqueous solution, continuously heating and refluxing for 2-4 hours, filtering and washing, and repeatedly applying the filtrate; the mass of the aluminum trichloride aqueous solution is 5 times of that of the filter cake.
In the present embodiment, by providing the spring 403, the joint of the movable bar 402 and the fixed bar 401 can be returned to the original position by the restoring force of the spring 403.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The preparation equipment of palm oil aluminum fatty acid comprises a first stirring blade (1) and a first stirring shaft (2), and is characterized by further comprising a liquid level stirring assembly (3) and a shockproof assembly (4), wherein the first stirring shaft (2) is fixedly connected with eight first stirring blades (1), the four first stirring blades (1) are fixedly connected to the outer side of a first connecting sleeve (5) at equal angle intervals, the first connecting sleeve (5) is sleeved on the first stirring shaft (2), and the first connecting sleeve (5) is fixedly connected with the first stirring shaft (2) through bolts; the liquid level stirring assembly (3) is positioned at the uppermost part, and the shockproof assembly (4) is positioned between the two groups of first stirring blades (1);
a second connecting sleeve (6) is sleeved at the top end of the first stirring shaft (2), and the bottom of the second connecting sleeve (6) is fixedly connected with a protective cover (7); the protective cover (7) and the connecting sleeve II (6) are superposed with the central line of the stirring shaft I (2); a first gear (8) is fixedly sleeved on the first stirring shaft (2), and the first gear (8) is fixedly connected to the first stirring shaft (2) through a bolt; the tooth part of the first gear (8) is positioned on the upper surface of the first gear (8); the inner side and the outer side of the protective cover (7) are both fixedly connected with a plurality of limiting sleeves (9), the limiting sleeves (9) horizontally penetrate through the protective cover (7), and the center lines of the limiting sleeves (9) point to the center of the protective cover (7);
the liquid level stirring assembly (3) comprises a second stirring shaft (301), a second stirring blade (302), a third connecting sleeve (303) and a bearing (304), the three second stirring blades (302) are fixedly connected to the outer side surface of the third connecting sleeve (303) at equal angle intervals, and the third connecting sleeve (303) is fixedly connected to the second stirring shaft (301) through bolts; three stirring blades on two adjacent connecting sleeves (303) on the same stirring shaft II (301) are spaced by 60 degrees in angle; part of the second stirring blades (302) is exposed out of the liquid level, and the rest of the second stirring blades (302) are positioned below the liquid level;
one side, close to the protective cover (7), of the stirring shaft II (301) penetrates through the pair of limiting sleeves (9) and the protective cover (7); one end of the second stirring shaft (301) is positioned outside the protective cover (7), and the other end of the second stirring shaft (301) is positioned inside the protective cover (7); the second stirring shaft (301) is limited and connected to two ends of the pair of limiting sleeves (9) through nuts (305) and gaskets (306); a second gear (307) is fixedly sleeved at one end of the second stirring shaft (301) positioned in the protective cover (7); the second gear (307) is fixedly connected with the second stirring shaft (301) through bolts; the second gear (307) is meshed with the first gear (8);
a bearing groove (308) is formed in the pair of limiting sleeves (9), a bearing (304) is fixedly clamped in the bearing groove (308), the bearing (304) is sleeved on a second stirring shaft (301), and the outer wall of the second stirring shaft (301) is in close contact with the inner wall of the limiting sleeve (9);
a connecting sleeve IV (10) is further fixedly sleeved on the first stirring shaft (2), shockproof assemblies (4) are fixedly connected to the outer wall of the connecting sleeve IV (10), and each shockproof assembly (4) comprises a fixed rod (401), a movable rod (402) and a spring (403); one end of the fixing rod (401) is fixedly connected with a first connecting plate (404), the other end of the fixing rod (401) is fixedly connected with a universal ball seat (405), the universal ball seat (405) is fixedly connected with a connecting rod (406), and one end, far away from the universal ball seat (405), of the connecting rod (406) is fixedly connected with a second connecting plate (407); one end of the movable rod (402) is fixedly connected to the connecting sleeve IV (10), and the other end of the movable rod (402) is fixedly connected to the connecting plate II (407); two ends of the spring (403) are respectively and fixedly connected with a third connecting plate (408), one third connecting plate (408) is fixedly connected to a second connecting plate (407) through a bolt, and the other third connecting plate (408) is fixedly connected to the universal ball seat (405) through a bolt; when the first stirring shaft (2) does not deviate axially, the fixed rod (401), the movable rod (402) and the spring (403) are all perpendicular to the first stirring shaft (2), and the fixed rod (401), the movable rod (402) and the spring (403) are all located on the same horizontal line.
2. The aluminum palm oil fatty acid production equipment as claimed in claim 1, wherein the first connecting plate (404) is provided with a threaded through hole (11).
3. The aluminum palm oil fatty acid production apparatus according to claim 1, wherein the limiting sleeves (9) have three pairs, and the three pairs of limiting sleeves (9) are distributed around the outer side of the protective cover (7) at equal angular intervals.
4. The aluminum palm oil fatty acid ester preparation equipment as claimed in claim 1, wherein the second stirring shaft (301) is provided with two threaded regions which are respectively positioned at the outer sides of the two ends of the limiting sleeve (9), and the two threaded regions are in threaded connection with the nut (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011616307.6A CN112808210B (en) | 2020-12-30 | 2020-12-30 | Preparation method of palm oil fatty acid aluminum |
Applications Claiming Priority (1)
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