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Method for preparing finished products of salt mixture of organic cobalt class of giving priority to cobalt boroacidate

A technology of cobalt boroacylation and mixed salts, which is applied in the fields of cobalt organic compounds, chemical instruments and methods, organic chemistry, etc., which can solve the problems of unfavorable adhesion between rubber and steel wire, corrosion of metal surface, high total acidity of free fatty acids, etc. question

Inactive Publication Date: 2007-07-25
徐美华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The boroacylated cobalt prepared by this method has a high cobalt content, and they have a large reactivity when the rubber is vulcanized, and play a major role in strengthening the adhesion between the rubber and the steel wire, but the total acidity of the free fatty acids produced by the reaction is high, which is unfavorable for rubber. Durable bond to steel wire and is corrosive to metal surfaces

Method used

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  • Method for preparing finished products of salt mixture of organic cobalt class of giving priority to cobalt boroacidate
  • Method for preparing finished products of salt mixture of organic cobalt class of giving priority to cobalt boroacidate
  • Method for preparing finished products of salt mixture of organic cobalt class of giving priority to cobalt boroacidate

Examples

Experimental program
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Effect test

Embodiment 1

[0038] In a 500ml three-neck flask with a water collector, a back distillation condenser, and a vacuum pump, add 50g of propionic acid, 120g of neodecanoic acid, and 66g of cobalt hydroxide, and control the reaction temperature at 150-170°C. The reaction time is 2 hours. Release the waste water, then add 55g of butyl borate and stir, control the heating temperature at 200°C and keep it warm for 1 hour, steam the butyl propionate, then add 15g of calcium metaborate, control the temperature at 180°C to 190°C, stir evenly for half an hour discharge. The cobalt content of the reaction product: 23%, the melting point: 105°C, and the appearance is blue-purple solid.

Embodiment 2

[0040] In a 1000ml three-neck flask equipped with a moisture collector, a back distillation condenser, and a vacuum pump, add 74g of propionic acid, 172g of neodecanoic acid, and 93g of cobalt hydroxide, and control the reaction temperature at 170-190°C. The reaction time is 2.5 hours. Release the waste water, then add 75g of butyl borate and stir, control the heating temperature at 190-195°C and keep it warm for 1 hour, steam the butyl propionate, then add 22g of calcium metaborate, control the temperature at 180°C-190°C, stir evenly for half After one hour, the material was discharged, and the cobalt salt of the reaction product had a cobalt content of 22.5%, a melting point of 102°C, and a blue-purple solid appearance.

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Abstract

This invention relates to a method for preparing organic cobalt mixed salt product mainly composed of cobalt boroacylate. The method comprises: (1) reacting cobalt hydroxide and mixed acids of propionic acid and octocapric acid in a normal pressure sealed container at 150-190 deg.C for more than 2 h; (2) adding butyl borate, and reacting at 190-200 deg.C for more than 1 h to form cobalt boroacylate and butyl propionate byproduct; (3) adding calcium metaborate at 180-190 deg.C to obtain the organic cobalt mixed salt product. The raw materials comprise: cobalt hydroxide 31-22 parts, octocapric acid 60-62 parts, propionic acid 25-27 parts, butyl borate 26-28 parts, and calcium metaborate 7-8 parts. The method has such advantages as high cobalt content, high reaction activity, and appropriate melting point.

Description

technical field [0001] The invention relates to a preparation method of an organic cobalt mixed salt product mainly composed of cobalt boroacylate. It belongs to the field of organic chemical technology. Background technique: [0002] Cobalt boroacylate, its theoretical molecular formula is: (R m -C o -O-) 3 B, (where m=3~11, mainly 9). Cobalt boroacylate is a highly active adhesion promoter, mainly used for natural rubber, synthetic rubber or these glues and brass, zinc, bare copper and brass or zinc-plated steel cords, ropes, metal plates adhesion promotion. It uses cobalt hydroxide, acetic acid and related organic acids as raw materials, first undergoes acid-base salt formation reaction, and then performs boroacylation reaction. The cobalt boroacylate prepared by this method has a high cobalt content, and they have a large reactivity when the rubber is vulcanized, and play a major role in strengthening the adhesion between the rubber and the steel wire, but the tota...

Claims

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Application Information

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IPC IPC(8): C07F5/02C07F15/06C09J11/06
Inventor 徐胜良李明伟徐美华
Owner 徐美华
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