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Preparation of organic cobalt salt adhesion promotion agent

An adhesion promoter and organic cobalt technology, applied in the preparation of carboxylate, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of difficulty in the production of cobalt powder, and achieve the effect of stable product quality

Active Publication Date: 2009-07-15
JIANGSU KAOU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an improved preparation method of an organic cobalt salt adhesion promoter, to overcome the above-mentioned cobalt powder making difficulty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dissolve cobalt sulfate in water, configure a cobalt solution with a cobalt concentration of 15g / L, and then prepare a sodium hydroxide solution with a concentration of 300g / L and a sodium carbonate solution with a concentration of 150g / L respectively, and the above three solutions are respectively filtered for backup use;

[0029] Heat the cobalt solution to 85±5°C, under the stirring condition of 50rpm, slowly add the sodium hydroxide solution at a temperature of 40~50°C, when the pH value of the reaction solution is 7, under the stirring condition of 30rpm, slowly add the sodium hydroxide solution at a temperature of 40°C Sodium carbonate solution at ~50°C, when the pH value of the reaction solution is 9.5, stop adding sodium carbonate solution, maintain the temperature at 50-60°C, and continue stirring until the pH value does not change;

[0030] The reaction solution was left to stand, and the precipitate was rinsed with water until the pH value of the rinse soluti...

Embodiment 2

[0038] Dissolve cobalt chloride in water, configure a cobalt solution with a cobalt concentration of 30g / L, then configure a sodium hydroxide solution with a concentration of 200g / L and a sodium carbonate solution with a concentration of 150g / L, and filter the above three solutions respectively reserve;

[0039] Heat the cobalt solution to 85±5°C, under the stirring condition of 60rpm, slowly add the sodium hydroxide solution at the temperature of 40~50°C, when the pH value of the reaction solution is 7, under the stirring condition of 40rpm, slowly add the sodium hydroxide solution at the temperature of 40°C Sodium carbonate solution at ~50°C, when the pH value of the reaction solution is 9.5, stop adding sodium carbonate solution, maintain the temperature at 50-60°C, and continue stirring until the pH value does not change;

[0040] The reaction solution was left to stand, and the precipitate was rinsed with water until the pH value of the rinse solution reached 7;

[0041]...

Embodiment 3

[0048] With the method of embodiment 2, difference is that cobalt nitrate is dissolved in water, and configuration cobalt concentration reaches the cobalt solution of 45g / L, then respectively configuration concentration is the sodium hydroxide solution of 100g / L and the concentration is the carbonic acid of 300g / L Sodium solution, the above three solutions were filtered separately for later use.

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Abstract

The invention discloses a method for preparing an organic cobalt salt adhesion promoter. The method comprises the following steps: cobalt solution, sodium hydroxide solution and sodium carbonate solution, which respectively have certain concentration, are respectively prepared; after the cobalt solution is heated, the sodium hydroxide solution is slowly added till the pH value of the reactant liquid reaches 7, and then the sodium carbonate solution is slowly added till the pH value of the reactant liquid reaches 9.5; the reaction liquid undergoes standing, and precipitates are rinsed with water; and the rinsed precipitate inorganic cobalt salt undergoes twice dehydration and then the reaction with weak organic acid in an organic solution so as to obtain the organic cobalt salt adhesion promoter product. The highly-active basic cobaltous carbonate powder produced according to the method has requirement-meeting indexes such as appearance, cobalt content, water content, trivalent cobalt content, impurity content, grain size, stacking density, and the like; and more importantly, the basic cobaltous carbonate powder has good reactive behavior. After the basic cobaltous carbonate powder undergoes neutralization reaction with the weak organic acid, the organic cobalt salt adhesion promoter product with high quality can be obtained.

Description

technical field [0001] The invention belongs to the technical field of material engineering, and in particular relates to a preparation method of an organic cobalt salt adhesion promoter. Background technique [0002] In the rubber product industry such as steel radial tires, steel wire reinforced conveyor belts, and steel braided rubber hoses, high-strength bonding of elastomers such as rubber and metal skeleton materials is required. In order to effectively ensure the high-strength adhesive performance of rubber and metal skeleton, as well as high anti-aging, heat and oxygen resistance, heat and humidity resistance, and salt water corrosion resistance, the prior art usually uses a direct-added organic cobalt salt adhesion promoter ( It mainly includes four categories: cobalt stearate, cobalt naphthenate, cobalt decanoate and cobalt boroacylate), and the manufacturing method of such cobalt salt adhesion promoter products is: convert inorganic soluble cobalt salt into inorga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/06C07C51/41
Inventor 傅秋明于立珍周江淮
Owner JIANGSU KAOU CHEM
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