Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cleaing method of sulfurous acid method produced syrup

A sulfite method, the technology of applying subferran sugar, is applied in the purification of sugar juice, sucrose production, sugar production and other directions, which can solve the problems of high cost, poor cleaning effect, large process loss, etc., and achieve less decomposition and cost. Decreases and enhances the effect of cleansing

Inactive Publication Date: 2003-12-03
王兆群
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some sulfite sugar factories mainly use the phosphoric acid floating method to clean the mixed syrup. This process is to heat the syrup to 80-85°C, add phosphoric acid, lime milk and flocculant, and aerate the syrup to generate phosphoric acid with bubbles. Calcium flocs absorb impurities and non-sugar in the syrup, and float up in the floater to form scum, and the clean syrup can be obtained by scraping off the scum. This method is complex in process and requires high process parameters. It is not easy to control, the cleaning efficiency is not high, the effect is unstable, the decolorization rate is low, the process loss is large, and the syrup filtration performance is extremely poor. The existing carbon method is only suitable for sugar juice cleaning or raw sugar redissolving in carbon sugar factories. At the same time, the cost of the lime kiln gas used is relatively high. If this method is directly used in the syrup produced by the sulfite method, a large amount of reducing sugar in the syrup will be destroyed, and the cleaning effect will be deteriorated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0013] Example, a clean method for producing syrup by sulfite method is to mix evaporated syrup and redissolved syrup to form a mixed syrup, the temperature of the mixed syrup is kept at 65-70°C, and the Brix is ​​at 55-65°Bx, and the mixed syrup is Add lime milk with a Baume degree of 12-18% in the middle, the amount of lime milk added is 1.2-2.0% of the syrup, mix quickly and enter the full tank to fill, and control the amount of lime added to keep the syrup in the full tank. When the pH value is between 7.5-8, fill the tank with carbon dioxide gas and fully react with the mixture of syrup and milk of lime to form calcium carbonate precipitation, absorb and condense impurities and non-sugar in the syrup, after filling The syrup enters the heater and is heated to 80-85°C to reduce the viscosity and increase the stability. The syrup with reduced viscosity is put into a plate and frame press and filtered to obtain a clean syrup. The carbon dioxide used is the washed smoke Gas a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A clean process for preparing syrup by sulfurous acid method features that the mixture of fume and fermenting gas, is used as the aerating gas for lower cost, a carbon method for aerating gas is used, which features that the pH value in aerating tank is controlled by the quantity of added lime for preventing high-temp strong-alkaline environment, and the adding lime and aerating are performed in short time for fully saturation of syrup mixture and CO2 and preventing decomposition of reducing sugar. Its advantages are high clean effect and efficiency.

Description

1. Technical field [0001] The invention belongs to the technical field of syrup production by sulfurous acid method, and in particular relates to a method for continuously cleaning syrup produced by sulfurous acid method with flue gas and fermentation gas. 2. Background technology [0002] In the sulfite sugar production, due to the insufficient clarification effect of the sulfite method on the sugar juice, the syrup contains a large amount of impurities and non-sugar, which seriously restricts the quality of the finished sugar, and the only way to improve the quality of the finished sugar in the sulfite sugar factory It is to clean the syrup to remove impurities and non-sugar in the syrup. At present, some sulfite sugar factories mainly use the phosphoric acid floating method to clean the mixed syrup. This process is to heat the syrup to 80-85°C, add phosphoric acid, lime milk and flocculant, and aerate the syrup to generate phosphoric acid with bubbles. Calcium flocs abso...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C13B20/00
Inventor 王兆群王兆伟王兆强
Owner 王兆群
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com