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Method for cleaning sugar juice by using wastes in sugar mill

A technology for sugar factory waste and sugar juice, which is applied in the purification of sugar juice, sugar production, purification with adsorbents, etc. It can solve problems such as environmental pollution and waste, achieve low cost, improve quality, and overcome difficulties in cleaning and filtering Effect

Inactive Publication Date: 2004-12-08
云南省轻工业科学研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Moreover, every year sugar mills produce tens of millions of tons of bagasse after sugar extraction, except that a part is used as fuel, there is still a large amount of surplus, and the remaining bagasse is discarded in the open air to cause waste and cause serious environmental pollution. Well Solved Problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 40 grams of dried bagasse with 150 milliliters of 17Be° phosphoric acid solution evenly, put it into a crucible, heat it to 400°C with a resistance furnace, and keep it warm for 1 hour, rinse the resultant with hot water repeatedly to the pH of the rinse water The value is greater than 5, and it is dried and crushed into a fine powder of 200 mesh. Since there is no national standard for sugar-making adsorbents yet, this test is carried out with reference to the test method of GB / T12496-99. The results are as follows: method A caramel decolorization power > 100%, methylene blue adsorption value > 13ml.

Embodiment 2

[0023] temperature(℃)

[0024] Test items

Embodiment 3～7

[0026] After adding the sugar-making adsorbent prepared in Example 2 to the sugar juice, keep stirring at 55° C. to 95° C. for 30 minutes at a constant temperature, and then filter with a microporous filtration system to obtain high-quality sugar juice. The test results are as follows:

[0027] Addition amount of adsorbent (%)

0.1

0.2

0.3

0.5

0.6

Decolorization rate (%)

28.7

48.9

50.0

62.0

66.5

Turbidity decrease (%)

-

-

70

95

96

[0028] *The amount of adsorbent added is converted to 72.0°Bx sugar juice, adding 0.3%, the turbidity can be reduced by more than 70%, and the cleaning effect is very obvious.

[0029] (2) High-quality sugar juice SO 2 The content is more than 10% lower than that of the original sugar juice, and it is possible to further reduce it significantly after adjusting the process. With the traditional secondary sulfur fumigation technolo...

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Abstract

A process for cleaning sugar juice with the waste of sugar refiner features that the cane dregs are used to prepare the adsorbent, which can be used in refining sugar and in colouring and cleaning sugar juice. It can decoloure the sugar juice by 50%, reduce turbidity by 80% and decrease SO2 by 10%.

Description

technical field [0001] The invention relates to the technical field of sugar production, more specifically, the invention relates to a method for decolorizing and cleaning sugar juice, preparing high-quality sugar juice and producing high-quality white granulated sugar. Background technique [0002] As everyone knows, existing sugar factories all adopt sulfur dioxide as a decolorizing agent to bleach sugar juice. The white granulated sugar produced by this method will turn yellow after being stored for a period of time, and has a high content of sulfur dioxide, which is very harmful to human health. [0003] According to the standards of the US Food and Drug Administration (FDA), when the content of sulfurous acid in food is above 10ppm, it must be indicated on the product. In the new standard of white granulated sugar implemented in China on August 1, 1999, the sulfur dioxide content of white granulated sugar in the past has been changed from a ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C13B20/00C13B20/12
Inventor 高正卿许阳陈勇张庆波何桂源郭伟李亚昆朱景国秦牧罗杰
Owner 云南省轻工业科学研究院有限公司
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