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Method of producing calcium formate with calcium chloride and sodium formate

A technology of calcium chloride and calcium formate, applied in chemical instruments and methods, preparation of alkali metal chlorides, organic compounds, etc., can solve problems such as low quality of calcium formate, blockage of production equipment, unstable production, etc., and achieve economical Considerable benefits, non-corrosive and irritating, low raw material cost and low production cost

Inactive Publication Date: 2015-08-12
CHIFENG RUIYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the quality of the by-product calcium formate is not high, and it is easy to cause blockage of production equipment, resulting in unstable production

Method used

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  • Method of producing calcium formate with calcium chloride and sodium formate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 1) Reaction: Add 178g of sodium formate powder raw material containing 80% sodium formate to the reaction cup, dissolve it in 162g of water, add 150ml of mother liquor, after heating to 50°C, add 90% calcium chloride containing 90% calcium chloride to the reaction cup under constant stirring. 123g of calcium chloride raw material powder was reacted for 2 hours under the catalysis of nickel-based catalyst, and the high-quality feed grade calcium formate product was obtained through concentration, crystallization, filtration, washing and drying.

[0014] 2) Extraction and separation: Add 200ml glycerin to the filtered mother liquor, separate the organic phase from the water phase, heat and evaporate the organic phase, recover the organic solvent, and cool the remaining solution to 25°C to crystallize, filter, wash and dry to obtain Industrial Sodium Chloride Products.

[0015] 3) The organic solvent is recovered and recycled, and the mother liquor is returned to the react...

Embodiment 2

[0017] 1) Reaction: Add 158g of sodium formate powder raw material containing 90% sodium formate to the reaction cup, dissolve it in 142g of water, add 150ml of mother liquor, after heating to 40°C, add chlorine containing 85% calcium chloride to the reaction cup under constant stirring. Calcium raw material powder 130g, reacted for 2 hours under the catalysis of nickel-based catalyst, concentrated, crystallized, filtered, washed, dried to obtain high-quality feed grade calcium formate product.

[0018] 2) Extraction and separation: Add 200ml glycerin to the filtered mother liquor, separate the organic phase from the water phase, heat and evaporate the organic phase, recover the organic solvent, and cool the remaining solution to 25°C to crystallize, filter, wash and dry to obtain Industrial Sodium Chloride Products.

[0019] 3) The organic solvent is recovered and recycled, and the mother liquor is returned to the reaction cup for recycling.

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Abstract

The invention discloses a method of producing calcium formate with calcium chloride and sodium formate, wherein the method includes following steps: (1) mixing a sodium formate solution being 80-95% in mass percentage concentration and calcium chloride raw material powder containing 85-90% of the calcium chloride with a mother liquid; (2) performing a reaction with a nickel-base catalyst for 1-2 h at 25-80 DEG C; and (3) concentrating, crystallizing, filtering, washing and drying a semi-product to obtain the calcium formate in feed grade. The method is low in energy consumption, is low in raw material cost, is low in production cost, is good in economic benefit and can be used for producing the high-quality calcium formate in the feed grade.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a method for producing calcium formate by using calcium chloride and sodium formate. Background technique [0002] Calcium formate is also called calcium formate. It is suitable for feed additives of various animals. It has the effects of acidification, anti-mildew and anti-bacteria. It is also used as an additive for concrete and mortar, leather tanning agent or as a preservative in industry. [0003] In the prior art, formic acid neutralization method is mostly used to produce calcium formate. In the production process, calcium formate is obtained by reacting formic acid with calcium carbonate or calcium hydroxide, and then undergoing hot melting, filtration, concentration, crystallization and separation. However, the existing formic acid neutralization method needs to dissolve the calcium formate produced by the reaction into water and then filter to remove impuriti...

Claims

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Application Information

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IPC IPC(8): C07C53/06C07C51/41C01D3/04
CPCC07C51/412C01D3/04C07C53/06
Inventor 李远喜陈晓玲刘武李万忠肖琳李鸿雁
Owner CHIFENG RUIYANG CHEM
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