JPS59167535A - Production of granular metal salt of fatty acid - Google Patents

Abstract

PURPOSE:To obtain the titled compound without fear for scattering and polluting the environment, by reacting hydroxide, carbonate or oxide of a metal with a fatty acid in an aqueous solution at a temperature above the melting point of the aimed metal salt, adding cold water to the reaction mixture to form powder, reheating the resultant powder to form a granular material, and cooling the resultant granular material while agitating. CONSTITUTION:Hydroxide, carbonate or oxide of a metal, e.g. Cu, Mn, Zn, Ca, Mg, Zr, Zn, Co or Ni, is reacted with a fatty acid, e.g. lauric, myristic, palmitic or stearic acid, in an aqueous solution at a temperature above the melting point of the resultant metal salt, preferably 80 deg.C or above, and cold water, preferably at as low a temperature as possible is added to the resultant metal salt of the fatty acid in the molten state to loosen the salt into a powdery form. The resultant powdery metal salt is then heated to a temperature for starting the metal salt to melt to fuse the powder into large particles. The heating is then stopped, and the large particles are cooled to room temperature with stirring to give the aimed material. USE:Stabilizers for vinyl chloride resins, drying agents for inks lubricants, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing granular fatty acid metal salts, and more specifically to a method for producing granular fatty acid metal salts, including metal hydroxides, carbonates, and saponified products.

The fat is reacted in an aqueous solution at a temperature above the melting point of the fatty acid metal salt, and then cold water is added to the molten fatty acid metal salt to loosen the above reaction mixture into a powder. The present invention relates to a production method in which a granular fatty acid metal salt is produced by reheating the fatty acid metal salt to a fusion temperature, pulverizing the fatty acid metal salt, and cooling the fatty acid metal salt to room temperature while stirring.

Metal salts of fatty acids are widely used as stabilizers for vinyl chloride resins, drying agents for alkyd resin paints, ink drying agents, curing agents for polyester resins, lubricants, and adhesive enhancers for steel cords.

Since fatty acid metal salts are usually in the form of fine powder, it has recently become desirable to make them into granules, flakes, or granules to reduce loss due to scattering and to prevent contamination of workplaces. .

The following conventional method is known as a known industrial method for producing fatty acid metal salts. One way to do this is to
Alkaline salt Y71 of nitrates, chlorides, and sulfates of Japanese pine and fatty acids (iU) is used to cause an ion reaction, and the fatty acid metal salt is added to water without bathing. This is a compound method. As a method, there is a method of directly reacting with fatty acids using metal hydroxides, carbonates, and oxides.The fatty acid metal salts produced by these methods have excellent purity, but the disadvantage is that the fatty acid metals produced For example, since the salt is Al11 °C, there is loss due to scattering during handling, and the metal is toxic at °C, making it necessary to prevent contamination of the working environment due to scattering.

Another typical old method is to directly melt metal oxides, water compounds, carbonates, etc. and fatty acids, or to melt water or There is a direct method in which the fatty acid metal salt 7 is obtained by removing carbon dioxide gas and removing the solvent after the reaction is completed. This method has the advantage that it can be easily formed into granules or flakes because the IC is melted when taken out from the fatty acid metal PVC reaction vessel. In the fields where it is used as a stabilizer for vinyl chloride resin, which has many uses as a fatty acid metal salt, and when kneaded into synthetic resins or rubbers such as adhesives for tire steel cords, it has the disadvantage of harming the dispersion property 15H. . The present invention is a completely new technology that fundamentally eliminates the above-mentioned drawbacks, and is capable of producing a granular powder that prevents scattering during handling and has excellent dispersibility when blended with resin or rubber. It is related to the invention.

The present invention will be briefly described in detail. Inventive 16 inches, i effect acid gold, 〆'ALfA, °C is lauric acid, mystylin order, valmitic acid, stearic acid, beef 1 + 1 fatty acid, soybean oil j fat I sideburn, coconut oil ii'ri fat F Feces, copper salts of palm oil fatty acids, manganese J, 111 N lead base,
Calcium salt, magnesium j'lVX, zirconium salt, lead salt, barium Jjli, ChichijA, cobalt 1
．． 1λ, nickel salt deficiency) can be observed.

In the present invention, raw 1]'v, -1-Production method of fatty acid metal salt is preferably carried out first.
It is desirable that the granular force be used as the 2-pot JiJ4 jM7t7 go/j brother 1-ro method, and the granular force should be formed as a piercing process.

? The present invention will be described in detail below.The method for producing granular fat (1) (4) salts (7) from the production of fatty acid metal salts will be described in detail.

The metal hydroxide or carbon V salt oxide used in the present invention is copper,
Manganese, zinc, calcium, macrosium, zirconium, lead, iron, cobalt, nickel, barium, cadmium, etc. are suitable, and commercially available industrial products may be used, but preferably freshly prepared hydroxides, carbonates, It is preferable to use oxide. Metal salts, such as caustic soda, potassium hydroxide, and ammonia, can be added to form metal hydroxides, or alkali carbonates, such as soda carbonate and ammonium carbonate can be added to form metal carbonates, which can be directly reacted with fatty acids. is necessary.

Any fatty acid may be used as long as the fatty acid metal salt produced is less than the foot point of water, such as lauric acid, mystilic acid, palmitic acid, stearic acid, beef tallow fatty acid, soybean oil fatty acid, and coconut oil. Fats such as palm oil and fatty acids are suitable.

The reaction for producing a fatty acid metal salt according to the present invention is preferably carried out at a temperature higher than the melting point of the fatty acid metal produced using the above-mentioned metal salt and a fatty acid salt solution, and more specifically at a temperature of 80°C or higher. When the reaction is carried out below the melting point, it takes a long time to complete the reaction. 1 produced fat 1
The metal salt is solidified using the bath melting method. It is desirable to remove the hot water used in the reaction before adding cold water to it.
There is no need to remove it. At this time, the overall temperature is 4
It is desirable to add cold water as low as possible so that the temperature is below 0''C, or to reduce the amount of filtrate used in the reaction.

Through this operation, the molten fatty acid metal salt is dispersed in powder form in the aqueous solution. Next, the temperature of the solution containing the fatty acid metal salts dispersed in powder form is raised to a temperature at which the fatty acid metal salts begin to melt, and the fatty acid metal salts dispersed in powder form fuse together and form large particles. grow to. At this time, when heating is stopped and the mixture is cooled to room temperature while stirring, granular fatty acid metal salts are formed in each particle. The size of the particles can be freely adjusted by adjusting the fusion temperature, time, and stirring efficiency.

When the 7-) granular fatty acid metal salt is dispersed in water and separated from water by passing it through a centrifugal separator and then drying at a temperature below the melting point of the formed 52 fatty acid metal salt, it is possible to obtain pure I. A granular fatty acid metal salt is obtained. This material is porous and when blended into a resin or comb, it has poor V properties and there is no fear of loss due to scattering or contamination of the living environment, and it can be used as an extremely advantageous industrial product.

Next, a non-conforming embodiment will be described.

夾/+itj Example 1゜2/ 1.51 liters of water and stearin in a four-bottle flask! i
12113.69 and cobalt hydride 18.49 were charged, heated to 100°C, and reacted for 6 hours. One piece of stearin produced and cobalt is molten on the flask *ls
Tar fJz is fixed. Remove the tubes used for the reaction and add cold water at 25°C.
Stir ゜. Hardened cobalt stearate IV
J IAe disintegrates and disperses in an aqueous solution. When heated again and the Z distribution was raised, powdered cobalt stearate (・English edition i-1 series-jI) started to appear at 82℃. The powders begin to stick to each other.

This 1 o'clock) jll Q ke discontinued (cool to room temperature with stirring H'1-7.) and condyle! S7. cobalt stearate is produced.

Next, it is dehydrated using a centrifugal external thermometer and dried on a dry bed at 60° C. for a day and night to obtain granular stearinized cobalt in a yield of 121 g. The yield was 97'S based on the cobalt hydroxide used. Also, as a result of product analysis, the metal content of cobalt was 96 and 1.

Example 2 1.5 A of water and 1 part of stearic acid were added to a 21°C four flask.
13.6.9, nickel hydroxide 18.4!9 preparation 1
Heat to 00°C and react for 6 hours. One piece of the produced nickel stearate was in a molten state at the top of the flask. Remove the water used in the reaction from below, and
Stir while adding cold water YIA at ℃. . The lumped nickel stearate is dispersed in the solution in powder form 717. When the temperature is raised again by heating to 80°C, the powdered di-stearic acid begins to melt and the unhulled rice begins to fuse together.

At this time, heating is stopped and the mixture is cooled to room temperature while stirring to form granular nickel stearate.

Next, dehydrate using centrifugation and drying at 60°C overnight.
A yield of 1121 g of nickel stearate was obtained. The yield was 96% based on the water-acclimated nickel used. As a result of product analysis, the metal content of nickel was 92%.

Patent applicant: Nichifu Kagaku Sangyo Co., Ltd.

Claims (1)

[Claims] A metal hydroxide, carbonate, or oxide is reacted with a fatty acid in an aqueous solution at a temperature higher than the melting point of the fatty acid metal salt produced, and then cold water is added into the molten fatty acid metal salt to dissolve the reactant. A process for producing granular fatty acid metal salts, which is characterized by loosening the fatty acid metal salts into a powder, reheating the fatty acid metal salts to the fusion temperature to form them into granules, and then cooling them to a room temperature while stirring.