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Method for producing desulfurized sugar by high efficiency active carbon improved sufurous acid method sugar producing process

A sulfurous acid method and activated carbon technology, which is applied in the direction of using adsorbent purification, oxidation/reduction purification, etc., can solve the problem of few breakthroughs, and achieve the effect of saving capital investment

Inactive Publication Date: 2007-04-11
云南永德糖业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For long-term and sustainable development, all sugar factories are actively exploring ways to improve product quality, but few breakthroughs have been made

Method used

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  • Method for producing desulfurized sugar by high efficiency active carbon improved sufurous acid method sugar producing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The sugarcane mixed juice (unclarified) with a purity of 80.15AP (simplified purity) is treated by the common sulfite method (that is, the mixed juice is treated by adding ash, phosphoric acid, heating, and clarification in a sedimentation tank, which belongs to the prior art), Most of the non-sugar and pigment are removed to obtain ordinary clear juice with a purity of 81.7AP and a color value of 1980IU. Pump the ordinary clear juice into the mixer, add the diluted and activated sugar and mix it with the ordinary clear juice with high-efficiency activated carbon, add lime milk to adjust the pH value to 6.8-7.6, and then go through the adsorption of the reaction barrel for 20-30min to further remove the The non-sugar and pigment; the obtained clear juice is sent to the plate and frame filter press to remove the filter mud to obtain the filtered juice, and the filtered juice is filtered through the fine filter to obtain the fine filtered clear juice with better quality, t...

Embodiment 2

[0015] The basic steps and method are the same as in Example 1, except that the consumption of high-efficiency activated carbon for sugar is 0.1% of that of common clear juice.

Embodiment 3

[0017] The basic steps and method are the same as in Example 1, except that the consumption of high-efficiency activated carbon for sugar is 0.2% of that of common clear juice.

[0018] project

indicators

premium product

first grade

Secondary product

quality

quantity

Method A caramel decolorization rate, %≥

110

100

90

Methylene blue decolorization power (1.5g / L), mL / 0.1g≥

13.0

12.0

11.0

Ash content, %≤

12.0

12.0

12.0

Iron content, %≤

0.05

0.10

0.15

Chloride content, %≤

0.20

0.25

0.30

Moisture, %≤

35

35

35

PH value

3.0～5.0

3.0～5.0

3.0～5.0

[0019] Wherein, the preparation method of high-efficiency activated carbon for sugar is as follows:

[0020] 1. Use bagasse as raw material, break up the bagasse and send it to the side of the ...

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Abstract

The present invention is improved desulfurized sugar producing sulfurous acid process with high efficiency carbon. The process includes the first mixed sugar cane juice clarifying treatment with sulfurous acid, the subsequent adding high efficiency active carbon in the amount of 0.09-0.2 wt% of juice into the clear juice and adding lime milk to regulate pH value to 6.8-7.6 through full mixing for adsorption in 20-30 min, pressure filtering and straining to obtain high quality juice, evaporating, boiling sugar and purging to obtain high quality desulfurized sugar. The present invention has high sugar quality.

Description

technical field [0001] The invention relates to the technical field of sugar production, in particular to a method for producing desulfurized sugar by improving the sulfurous acid sugar production process with high-efficiency activated carbon for sugar. Background technique [0002] my country's sugar cane sugar industry has long used the traditional carbonation and sulfurous acid methods to produce white granulated sugar. The quality of the white granulated sugar produced by the carbonation process is better, but the process is more complicated, the cost is high, and the amount of filter mud is large. The environmental pollution is relatively large; the production process of ordinary sulfurous acid method is simpler than that of carbonic acid method, and the investment is less. The filter mud can be used as agricultural fertilizer, but the product color value, turbidity, SO 2 Residual content and other indicators are high, poor preservation, easy to yellow. On October 1, 20...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13D3/12C13D3/10C13B20/12C13B20/10
Inventor 李世平高正卿何贵云陈勇杨文逍杨新德
Owner 云南永德糖业集团有限公司
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