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Method for preparing calcium fumarate or zinc fumarate

A technology of zinc fumarate and calcium fumarate, applied in the field of chemistry, can solve problems such as high cost, unfavorable environmental protection, complicated steps, etc., and achieve the effects of low cost, high product quality and simple preparation method

Active Publication Date: 2012-03-07
宜兴市前成生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The technical solution for preparing zinc fumarate in the prior art has high cost and complicated steps, and a large amount of organic solvents need to be used in the preparation process, which is not conducive to environmental protection!

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 prepares calcium fumarate:

[0030] Add 232g of fumaric acid and 464ml of ammonia water with a pH value of 6 to 8 in a 1000ml beaker, and stir to dissolve all the solids. Remove traces of insoluble matter by filtration and set aside.

[0031] Add 112g of calcium oxide or 200g of calcium carbonate, 300ml of water, and 332ml of concentrated hydrochloric acid into another 1000ml beaker, stir and dissolve all the solids to form a calcium chloride solution.

[0032] Mix the above two feed liquids in a 2000ml beaker, stir, cool and crystallize, and precipitate calcium fumarate. Suction filtration, washing and drying to obtain qualified products. The test results are shown in Table 1.

Embodiment 2

[0033] Embodiment 2 prepares calcium fumarate:

[0034] Add 232g of fumaric acid and 580ml of ammonia water with a pH value of 6 to 8 in a 1000ml beaker, and stir to dissolve all the solids. Remove traces of insoluble matter by filtration and set aside.

[0035] In another 1000ml beaker, add 222g of calcium chloride and 518ml of water, stir until all the solids dissolve, and make a calcium chloride solution with a mass percent concentration of 30%.

[0036] Mix the above two feed liquids in a 2000ml beaker, stir, cool and crystallize, and precipitate calcium fumarate. Suction filtration, washing and drying to obtain qualified products. The test results are shown in Table 1.

Embodiment 3

[0037] Example 3 Preparation of zinc fumarate:

[0038] Add 232g of fumaric acid and 464ml of ammonia water with a pH value of 6 to 8 in a 1000ml beaker, and stir to dissolve all the solids. Remove traces of insoluble matter by filtration and set aside.

[0039] Add 162g of zinc oxide, 300ml of water, and 332ml of concentrated hydrochloric acid into another 1000ml beaker, stir and dissolve all the solids to form a zinc chloride solution.

[0040] Mix the above two feed liquids in a 2000ml beaker, stir, cool and crystallize, and precipitate zinc fumarate. Suction filtration, washing and drying to obtain qualified products. The test results are shown in Table 2.

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PUM

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Abstract

The invention discloses a method for preparing calcium fumarate or zinc fumarate. The method comprises the following steps: (1) mixing fumaric acid and ammonia water to prepare a mixed solution; (2) preparing a calcium chloride or zinc chloride solution; (3) mixing the mixed solution prepared in step (1) with the calcium chloride or zinc chloride solution prepared in step (2), and carrying out stirring, cooling, crystallization, pumping filtration, rinsing and drying to prepare calcium fumarate or zinc fumarate. The method provided in the invention can be used for preparation of the pure substance of calcium fumarate (fumaric acid:calcium = 1:1) or zinc fumarate (fumaric acid:zinc = 1:1). The method has the following advantages: organic solvents like alcohols and acetic acid are not used, being environment friendly; drying is realized by direct utilization of a common baking oven without need for microwave or spray drying or the like, thereby reducing energy consumption.

Description

technical field [0001] The invention belongs to the chemical field and relates to a method for preparing calcium fumarate or zinc fumarate. Background technique [0002] From fumaric acid (H 2 C 4 h 2 O) Zinc fumarate, an organic zinc source feed additive formed by combining with zinc ions, is a biologically active substance, which can prevent mildew, inhibit bacteria, improve feed utilization and livestock production performance when added to feed. , and has the characteristics of non-irritating, fast absorption, etc., and belongs to an animal zinc supplementation enhancer with excellent performance. The fumarate ion in zinc fumarate can participate in the tricarboxylic acid cycle, form ATP for the metabolism of the body, and can be used as a carbon frame to synthesize amino acids and further synthesize proteins. [0003] Zinc is an essential trace element for humans and animals. It has the functions of accelerating growth and development, improving taste, regulating bo...

Claims

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Application Information

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IPC IPC(8): C07C57/15C07C51/41
Inventor 席日新李海涛张梦笔
Owner 宜兴市前成生物有限公司
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