Process for cleaning sugar cane juice in sugar production from sugar cane

A new process, sugarcane technology, applied in the field of clean production process and clean process, can solve the problems of high cost, increased cost of sugar products, difficult to accept by cement manufacturers, etc.

Inactive Publication Date: 2005-06-22
CHINESE RES ACAD OF ENVIRONMENTAL SCI +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this technology still has the following main problems: (1) alkaline filter mud directly burns cement, the cost is higher, a

Method used

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Embodiment Construction

[0014] For mixed juice with a purity of 78.19AP, preheat to 50°C, add phosphoric acid mixture, neutralize with milk of lime, fill in fine and uniform bubbles, add flocculant, and perform low-temperature phosphorus floatation treatment. The separated neutral filter mud can be directly used as fertilizer or further extracted with high value-added products. The purity of clear juice increased to 80.66AP, and the color value decreased to 92.66°st. Heat the supernatant juice to 75°C, add 1.0wt.% diatomaceous earth relative to the sucrose, pre-decolorize for 60min, and the color value of the juice drops to 75.23°st. Then add 1.0wt.% activated carbon for sugar relative to the sucrose part, continue to decolorize for 30min, and the color value of the juice drops to 30.70 ° st, which can meet the requirements of boiling sugar. This process does not produce alkaline filter sludge.

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Abstract

The invention discloses a novel process for cleaning sugar cane juice in sugar production which comprises the steps of, low-temperature phosphor floating treatment, pre-decolorizing with diatomaceous earth and activated charcoal, then loading to boil the sugar. The neutral filtering mud produced in the low-temperature phosphor floating method can be directly used as fertilizer. The process can eliminate the generation of alkaline sieving mud in sugar production.

Description

technical field [0001] The invention relates to a clean process for producing sugar cane juice from sugarcane, which belongs to the category of clean production process. technical background [0002] my country's sugarcane sugar industry has long adopted traditional production methods: one is carbonic acid and the other is sulfurous acid. The quality of sugar products produced by the carbonic acid production process is good, but the process is complicated, the cost is high, and the amount of filter mud is large. For every 10,000 tons of sugarcane squeezed, 800 tons of filter mud are produced. The filter mud is strongly alkaline and cannot be used as a fertilizer. Alkaline filter mud has a high content of organic matter (about 11-13%) and cannot be directly used to burn cement. It needs to be stored for more than 5 years before burning cement, so it is necessary to build a large area of ​​storage yard. In addition, secondary pollution is generated during the storage proces...

Claims

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Application Information

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IPC IPC(8): C13B20/12
Inventor 段宁杨万善元炯亮蓝贤州
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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