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Prepn process of copper nicotinate

A technology of copper nicotinic acid and nicotinic acid, applied in the direction of organic chemistry, can solve the problem that trace elements cannot be directly mixed with various vitamins, and achieve the effects of not easily catalyzing the decomposition of vitamins, reducing waste of resources, and fast reaction speed

Inactive Publication Date: 2007-03-21
陈强 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a process for preparing copper nicotinate from nicotinic acid, alkali metal carbonate or alkali metal hydroxide and inorganic copper salt, to promote a new generation of metal chelation with no pollution and high absorption and utilization rate Comprehensive development and application of animal feed additives; at the same time, it solves the problem that trace elements cannot be directly mixed with various vitamins in the process of feed processing and storage, simplifies the production process and storage conditions of feed and premixed feed, reduces costs, and is beneficial to the feed industry and other related industries. Development; improve the absorption and utilization rate of copper, reduce the emission of copper, reduce environmental pollution, and protect the ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put 125.5 grams of CuSO 4 ·5H 2 Dissolve O in 500ml of water to make a copper sulfate aqueous solution for use; weigh 123.1g of niacin, moisten it with 500ml of distilled water, slowly add 60g of sodium carbonate, stirring while adding, the process is accompanied by a large number of bubbles, until niacin After it is completely dissolved, add 1 gram of nickel sulfate as a catalyst and stir evenly. Then slowly add the above-prepared copper sulfate solution, adjust the pH to 5 with a 1:1 hydrochloric acid solution, leave it to stand for 12 hours, and filter with suction to obtain a blue precipitate, wash it with distilled water 3 times, filter with suction, and dry at 105°C. Get the sample. The yield is 97.3%, and the purity is 97%.

Embodiment 2

[0021] 250g CuSO 4 ·5H 2 O powder is dissolved in 1000ml of water to make a copper sulfate aqueous solution for use; weigh 246 grams of niacin, moisten it with 1000ml of distilled water, slowly add 80 grams of sodium hydroxide, and stir while adding until the niacin is completely dissolved, then add 1.5 Grams of nickel sulfate is used as a catalyst and stirred evenly. Afterwards, slowly add the above-prepared copper sulfate solution, after the addition, adjust the pH to 5 with 1:1 hydrochloric acid solution, stand and age for 12 hours, and then filter with suction to obtain a blue precipitate, wash with distilled water 3 times, filter with suction, 105 After drying at ℃, the sample is obtained. The yield is 98.3%, and the purity is 97.5%.

Embodiment 3

[0023] Put 125.5 grams of CuSO 4 ·5H 2 Dissolve O in 500ml of water to make a copper sulfate aqueous solution for use; weigh 123.1 grams of niacin, moisten it with 500ml of distilled water, slowly add 84 grams of sodium bicarbonate, and stir while adding. This process is accompanied by a large number of bubbles coming out until smoke After the acid is completely dissolved, add 2 grams of nickel sulfate as a catalyst and stir evenly. Then slowly add the above-prepared copper sulfate solution. After the addition, adjust the pH to 5 with 0.1M hydrochloric acid solution, stand for 12 hours, and filter with suction to obtain a blue precipitate. Wash with distilled water for 3 times, filter with suction, and 105°C. After drying, the sample is obtained. The yield is 97.8%, and the purity is 98%.

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PUM

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Abstract

The preparation process of copper nicotinate includes the following steps: 1. adding nicotinic acid and water into reactor, and adding water soluble alkaline matter slowly via stirring until nicotinic acid is converted into salt dissolved in water completely; and 2. dissolving inorganic copper salt into water, dropping the water solution of inorganic copper salt into the water solution of the nicotinate slowly via stirring, regulating pH to 4-6 to separate blue or green blue precipitate; stilling to age, centrifuging or suction filtering to obtain the precipitate; washing the precipitate with water, centrifuging or suction filtering, and drying to obtain the copper nicotinate product. The preparation process has the advantages of fast reaction speed, environment friendship, low cost, high product yield, high product purity, etc. and the product has high bioavailability.

Description

Technical field: [0001] The invention relates to a preparation method of copper nicotinate. Background technique: [0002] Since Braude first discovered in 1945 that adding copper (Cu) 10 times the normal requirement of animals to feed can significantly improve the performance of animals, copper has been widely used as an effective growth promoter in the pig industry. Especially in the intensive breeding process, it has played a huge role in promoting animal growth and improving production performance. But due to the current common CuSO 4 , The absorption rate is low, a large amount of heavy metal ions remain in the feces are discharged to the environment, Cu 2+ Ions catalyze the decomposition of vitamins, which cannot be directly mixed during feed processing and storage, which increases the cost of feed processing and storage, which is a major problem that has not been solved so far. Therefore, while high copper improves production performance, it also brings about problems such...

Claims

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Application Information

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IPC IPC(8): C07D213/80C07D213/803
Inventor 陈强李清禄黄志坚
Owner 陈强
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