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Natural chlorophyl ferro-chromo-lignosulfonate and preparation method

A technology of chlorophyll and iron chromium, which is applied in the field of natural pigment salt and its preparation, and achieves the effects of simple and convenient preparation method, high yield and low price

Inactive Publication Date: 2012-07-18
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, there is no report on the technical scheme of natural ferric chlorophyllin chromium salt and its derivatization with ferric chlorophyllin sodium salt to ferric chlorophyllin chromium salt

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  • Natural chlorophyl ferro-chromo-lignosulfonate and preparation method
  • Natural chlorophyl ferro-chromo-lignosulfonate and preparation method
  • Natural chlorophyl ferro-chromo-lignosulfonate and preparation method

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Embodiment 1

[0027] Sodium ferric chlorophyll is dissolved in water with a solution concentration of 0.67g / 100ml and a pH value of 8.6. Chromium chloride hexahydrate is dissolved in a buffer solution with a pH of 7, the pH of the solution is 6.4, and the color is blue-purple. Slowly add the chromium salt solution to the ferric chlorophyllin sodium salt. Stir at a speed of 1000r / min to left and right, and make it fully react at room temperature (17-25°C). Aged in a water bath at 40°C for 3h. Separate and dry at 80°C to obtain black (dark blue-green) chlorophyllin ferric chromium salt. Carry out the measurement of each index. Wherein, by AVATAR360 type Fourier transform infrared spectrometer, UV7652 spectrophotometer and ZCR-1 differential thermal analysis, obtain ferric chlorophyll sodium salt and ferric chlorophyll chromium salt spectrogram (see attached Figure 1-6 ), and analyzed and compared, it was determined that the product was ferric chlorophyllin chromium salt. The yield was 9...

Embodiment 2

[0029] Sodium iron chlorophyllin is dissolved in water and its solution pH is 8.3. Chromium chloride hexahydrate is dissolved in a buffer solution with a pH of 7, and the pH of the solution is 6.2. Slowly add the chromium salt solution to the ferric chlorophyllin sodium salt. Stir at a speed of 1000r / min to left and right, and make it fully react at room temperature (17-25°C). Aging at 55°C for 4h. Separate and dry at 60°C to obtain black (dark blue-green) chlorophyllin ferric chromium salt. The yield was 95%.

Embodiment 3

[0031] Sodium ferric chlorophyll is dissolved in water and its solution pH is 8.5. Chromium chloride hexahydrate is dissolved in a buffer solution with a pH of 7, and the pH of the solution is 6.7. Slowly add the chromium salt solution to the ferric chlorophyllin sodium salt. Stir at a speed of about 1000r / min, and age at 70°C for 5h. Separate and dry at 50°C to obtain black (dark blue-green) chlorophyllin ferric chromium salt. The yield was 93%.

[0032] Chlorophyll iron chromium salt formation analysis:

[0033] 1. Judging from the changes in the experimental phenomena, after dissolving sodium iron chlorophyllin in water, the color of the solution is dark green, and adding Cr 3+ When the reagent turns into a salt, a black precipitate is produced immediately, indicating that a new substance is formed.

[0034] 2. Ultraviolet-visible absorption spectrum analysis (UV)

[0035] See attached figure 1 , 2 and the following table. From the analysis of UV spectrum, firstly, ...

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Abstract

The invention discloses a preparation method of natural chlorophyll ferro-chromo-lignosulfonate and obtained natural chlorophyl ferro-chromo-lignosulfonate (called ferro chlorophyllin chromo). The method is characterized in that sodium ferrous chlorophyl and inorganic chromic salt are taken as raw materials for direct substitution and then are manufactured at one step. The sodium ferrous chlorophyl and the inorganic chromic salt are dissolved in water and buffer solution respectively according to certain mass ratio, wherein the pH value of reaction liquid is 7.5 to 9; the chromic salt solution is added in the sodium ferrous chlorophyl solution slowly, and magnetic stirring is carried out at a speed of about 1000 r / min to ensure that the chromic salt solution and the sodium ferrous chlorophyl solution react completely under an ambient temperature; and the reaction product is aged, separated and dried at the temperature of 50 DEG C to 80 DEG C, and then black (dark greenish black) chlorophyl ferro-chromo-lignosulfonate can be obtained. The preparation method has the advantages of simplicity, low cost, no by-product, no environmental pollution and high productivity; the raw materials required for synthesis are easy to obtain and low in cost, are nontoxic and harmless, and have an infinite development and application prospect in industries such as medicines and electroplating.

Description

technical field [0001] The invention relates to a natural pigment salt and a preparation method thereof, in particular to a preparation method of natural chlorophyll iron chromium salt. The obtained natural ferric chlorophyllin chromium salt is also called chromium iron chlorophyllin. Background technique [0002] Currently commercially available chlorophyll derivatives include sodium copper chlorophyllin, sodium iron chlorophyllin, potassium copper chlorophyllin, calcium pheophorbide, iron-zinc chlorophyllin, and the like. The synthesized natural chlorophyll iron chromium salt is also a kind of chlorophyll derivative, and chromium is an essential trace element for the human body, and plays a special role in the body's glucose metabolism and lipid metabolism. However, the absorption and utilization rate of inorganic chromium by the human body is extremely low, less than 1%, and the utilization rate of organic chromium can reach 10-25%. Therefore, the organic substance form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22C09B61/00
Inventor 刘淑萍王燕闫路省陆海洋
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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