Process for purifying sugar cane clear juice with membrane

A technology for clearing and purifying sugarcane juice, applied in the field of sugarcane sugar making process, can solve the problems of low membrane flux, membrane easily polluted, reducing the initial flux of the membrane, etc., and achieve the effect of prolonging the life and improving the initial flux.

Inactive Publication Date: 2010-04-28
叶丽娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sugar cane juice contains a lot of colloids in the above-mentioned sugar making process, these colloids make the membrane easy to be polluted, the membrane flux is very low, and the initial flux of the membrane is reduced

Method used

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  • Process for purifying sugar cane clear juice with membrane
  • Process for purifying sugar cane clear juice with membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The ratio of adding mid-temperature amylase to clear sugarcane juice is 2×10 -5 : 1, mixed in a mixer for 10 to 20 minutes, and filtered with a membrane filter to obtain high-quality clear sugarcane juice, and the initial flux of the membrane reaches more than 90% of the filtered water flux.

Embodiment 2

[0019] The ratio of adding mid-temperature amylase to clear sugarcane juice is 1×10 -4 : 1, mixed in a mixer for 10 to 20 minutes, and filtered with a membrane filter to obtain high-quality clear sugarcane juice, and the initial flux of the membrane reaches more than 90% of the filtered water flux.

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Abstract

This invention discloses a method of cleaning sugarcane liquor with membrane.The method is adding intermediate temperature amylase before sugarcane liquor filtering with membrane. The rate of amylaseto sugarcane liquor is 2x0.00001-1x0.0001. After adding amylase, it is mixed about 10-20min.

Description

Technical field [0001] The invention relates to a process for cleaning sugarcane juice by using a membrane, which is particularly suitable for the sugarcane sugar making process. Background technique [0002] At present, the known process of cleaning sugarcane juice with film is: sugarcane pressing → mixed juice box (pre-ash plus phosphoric acid) → first heating (75-80°C) → neutralized juice box (adding phosphorus, SO 2 )→second heating (100~105℃)→sedimentation tank→clean juice→membrane filtration. The above-mentioned sugar production process contains a lot of colloids in the sugarcane juice, and these colloids make the membrane easily polluted, and the membrane flux is very low, which reduces the initial flux of the membrane. Contents of the invention [0003] In order to overcome the deficiencies in the known process of using membranes to clean sugarcane juice, the present invention provides a novel process, adding medium-temperature amylase to the sugarcane juice from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C13D3/16C13B20/16
Inventor 叶丽娜
Owner 叶丽娜
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