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Sulfitation syrup floatation clarification process

A sulfite method and syrup technology, applied in sugar crystallization, sugar products, sucrose production and other directions, can solve the problems of low clarification efficiency and high sulfur dioxide content, and achieve the goal of reducing nectar-making factors and pigment substances, improving quality, and improving product quality. Effect

Inactive Publication Date: 2015-11-18
NANNING SUGAR INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of this invention is to solve the problems of low clarification efficiency and high sulfur dioxide content in the traditional sugar clarification process, and provide a set of sulfite syrup floating clarification process with high clarification efficiency and good impurity removal effect

Method used

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  • Sulfitation syrup floatation clarification process
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Examples

Experimental program
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Effect test

Embodiment 1

[0030]First prepare the rough syrup, then pump the rough syrup to the syrup high level tank and mix it with the red sand back-dissolving syrup. At the same time, check and analyze the content of various indicators of the mixed syrup. The results are: Brix 62.6°Bx, sulfur content 405mg / kg, depending on the purity of 87.5%, pH value 7.1, and directly heat the rough syrup to 80-85°C with superheated steam in the syrup high-level box, and foam at a ratio of 15%, and add 350ppm of phosphoric acid and 10ppm of saccharified calcium for a reaction at the same time , and then add flocculant 10ppm, after mixing thoroughly, take a sample and observe before the secondary reactor flows into the floater, the scum floats up quickly and is clear, after being floated and separated by the floater, check and analyze the indicators of the float clear syrup, the result is: hammer The degree is 61.1°Bx, the sulfur content is 188mg / kg, the apparent purity is 87.7%, and the pH value is 6.3. The speci...

Embodiment 2

[0034] First prepare the rough syrup, then pump the rough syrup to the syrup high level tank and mix it with the red sand back-dissolving syrup. At the same time, check and analyze the contents of various indicators of the mixed syrup. The results are: Brix 63.8°Bx, sulfur content 413mg / kg, depending on the purity of 88.1%, pH value 7.06, and directly heat the rough syrup to 80-85°C with superheated steam in the syrup high-level box, and foam at a ratio of 15%, and add 350ppm of phosphoric acid and 10ppm of calcium saccharification for a reaction at the same time , and then add flocculant 10ppm, after mixing thoroughly, take a sample and observe before the secondary reactor flows into the floater, the scum floats up quickly and is clear, after being floated and separated by the floater, check and analyze the indicators of the float clear syrup, the result is: hammer The temperature is 61.6°Bx, the sulfur content is 198mg / kg, the apparent purity is 88.2%, and the pH value is 6.2...

Embodiment 3

[0038] First prepare the rough syrup, then pump the rough syrup to the syrup high level tank and mix it with the red sand back-dissolving syrup. At the same time, check and analyze the contents of various indicators of the mixed syrup. The results are: Brix 64.8°Bx, sulfur content 398mg / kg, depending on purity 87.2%, pH value 6.95, and directly heat the crude syrup to 80-85°C with superheated steam in the syrup high-level box, and foam at a ratio of 15%, while adding 350ppm phosphoric acid and 10ppm calcium saccharification for a reaction , and then add flocculant 10ppm, after mixing thoroughly, take a sample and observe before the secondary reactor flows into the floater, the scum floats up quickly and is clear, after being floated and separated by the floater, check and analyze the indicators of the float clear syrup, the result is: hammer The temperature is 63.5°Bx, the sulfur content is 175mg / kg, the apparent purity is 87.5%, and the pH value is 6.2. The specific situation...

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Abstract

The invention discloses a sulfitation syrup floatation clarification process which comprises the following working procedures: preparing raw sugar, removing impurities through floatation, and preparing white granulated sugar; the procedure for preparing the raw sugar comprises the steps of preliming, primary heating, neutralization, secondary heating, precipitation, suction filtration, tertiary heating, five-effect evaporation and the like; the procedure for removing the impurities through floatation comprises the steps of heating in a high-level tank, primary reaction, secondary reaction and floatation separation. According to the sulfitation syrup floatation clarification process provided by the invention, the procedure for removing the impurities through syrup floatation is added on the basis of the conventional sulfitation sugar production process; high-quality materials can be provided for all stages in the subsequent sugar boiling process, so as to improve the product quality; moreover, brown granulated sugar remelt syrup can be processed according to a certain proportion, colloids and impurities in the brown granulated sugar remelt syrup can be effectively removed, and honey production factors and pigment substances can be reduced, so that the quality of an intermediate product is improved, and boiling of various series of massecuite and sugar recovery are facilitated; compared with the prior art, the sulfitation syrup floatation clarification process has the characteristics that the clarification efficiency is high, the effect of removing the impurities is good, and the content of sulfur dioxide in a product is low.

Description

technical field [0001] The invention relates to the field of sucrose production, in particular to a process for floating and clarifying sulfitic syrup. Background technique [0002] White sugar is processed from plants such as sugar cane or sugar beet. It is the main product of sugar factories. Its main component is sucrose, which is an important daily condiment and widely used in food processing, beverages, pharmaceuticals and other industries. The traditional and mature processing methods for producing white sugar in my country mainly include sulfurous acid method and carbonic acid method. There are relatively few non-sugar impurities, the recovery rate of cooking is relatively low, the quality of white granulated sugar is unstable, and the color will increase after long-term storage, and the residual sulfur dioxide content is high. [0003] The traditional sulfite clarification process uses sugarcane as raw material, including crushing, pressing, pre-ashing, primary heati...

Claims

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Application Information

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IPC IPC(8): C13B20/00C13B20/02C13B20/16C13B25/00C13B30/02C13B50/00
Inventor 韦如其肖凌傅其军岑跃唐新阳黄海伍明健李品端钟伟李有忠王玉军
Owner NANNING SUGAR INDUSTRY CO LTD
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