Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method for solidifying sodium gluconate mother liquor produced by fermentation method

A technology of sodium gluconate and fermentation method is applied in the field of treatment of sodium gluconate mother liquor to achieve the effects of reducing the risk of sewage discharge, solving storage difficulties and improving added value

Active Publication Date: 2014-07-16
SHANDONG FOOD & FERMENT IND RES & DESIGN INST
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After retrieval, there is no report about the method of solidifying the mother liquor produced in the above-mentioned sodium gluconate production process

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 1

[0018] (1) Add powdered activated carbon in an amount of 0.1% by weight to the mother liquor that can no longer be concentrated and crystallized during the production of sodium gluconate by fermentation, and stir for 40 minutes at 60°C and pH 5.0 to make the mother liquor bleaching;

[0019] (2) Use the decolorized mother liquor with an air permeability of 120L / m 2 S plate and frame filter of polyester filter cloth to filter to obtain filtered clear liquid;

[0020] (3) Filter the plate and frame filtered clear liquid through a liquid precision filter with a filtration accuracy of 5 μm to obtain a clarified liquid;

[0021] (4) Use a pressure spray dryer to spray dry the clarified liquid obtained in step (3) at a pressure of 4.5MPa and a wind temperature of 115°C;

[0022] (5) Pack the powder obtained after spray-drying to obtain the solid powder product of sodium gluconate mother liquor.

Embodiment 2

[0024] (1) Add powdered activated carbon in an amount of 0.2% by weight to the mother liquor that can no longer be concentrated and crystallized during the production of sodium gluconate by fermentation, and stir for 30 minutes at 80°C and pH 7.0 to make the mother liquor bleaching;

[0025] (2) Use the decolorized mother liquor with an air permeability of 120L / m 2 · S polyester 747.120-14 filter cloth plate and frame filter to obtain filtered clear liquid;

[0026] (3) Filter the plate and frame filtered clear liquid through a liquid precision filter with a filtration accuracy of 5 μm to obtain a clarified liquid;

[0027] (4) Use a pressure spray dryer to spray dry the clarified liquid obtained in step (3) at a pressure of 4 MPa and a wind temperature of 110°C;

[0028] (5) Pack the powder obtained after spray-drying to obtain the solid powder product of sodium gluconate mother liquor.

Embodiment 3

[0030] (1) Add powdered activated carbon in an amount of 0.5% by weight to the mother liquor that can no longer be concentrated and crystallized during the production of sodium gluconate by fermentation, and stir for 20 minutes at 70°C and pH 6.0 to make the mother liquor bleaching;

[0031] (2) Use the decolorized mother liquor with an air permeability of 120L / m 2 S plate and frame filter of polyester filter cloth to filter to obtain filtered clear liquid;

[0032] (3) Filter the plate and frame filtered clear liquid through a liquid precision filter with a filtration accuracy of 5 μm to obtain a clarified liquid;

[0033] (4) Use a pressure spray dryer to spray dry the clarified liquid obtained in step (3) at a pressure of 5 MPa and a wind temperature of 105°C;

[0034] (5) Pack the powder obtained after spray-drying to obtain the solid powder product of sodium gluconate mother liquor.

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

The invention discloses a method for solidifying mother liquor (mother liquor for sale) which cannot be concentrated and crystallized again in the process of producing sodium gluconate by a fermentation method. The method comprises the following steps: firstly, destaining the mother liquor which cannot be concentrated and crystallized again in the process of producing sodium gluconate by the fermentation method by using powdered activated carbon; filtering through a plate-and-frame filter and a precise liquid filter; drying the filtered clear mother liquor by using a pressure spray dryer, so as to obtain a solid powder product of the sodium gluconate mother liquor. By adopting the method disclosed by the invention, not only are the storage and transportation costs of the mother liquor in an enterprise reduced, but also the additive value of the sodium gluconate mother liquor is improved, meanwhile, the problems that the mother liquor is difficult to store and easily goes bad are also thoroughly solved, and the pollution discharge risk of the enterprise is reduced.

Description

technical field [0001] The invention relates to a method for treating sodium gluconate mother liquor, in particular to a method for solidifying the mother liquor which cannot be further concentrated and crystallized during the production of sodium gluconate by fermentation. Background technique [0002] Sodium gluconate, also known as sodium pentahydroxyhexanoate, is a white or light yellow crystalline powder, easily soluble in water, slightly soluble in alcohol, and insoluble in ether. It is a polyhydroxy organic acid salt with a wide range of uses, widely used in water quality stabilizers, steel surface cleaning agents, special cleaning agents for glass bottles, cement admixtures, etc. Especially in the aspect of cement admixture, with the development of urban high-rise buildings and urban mixing plants, sodium gluconate is used as a water reducer and retarder, and has achieved good results. It has been rapidly promoted and widely used in the world. [0003] The productio...

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): C12P7/58
Inventor 田延军韩延雷杨丽萍乔君赵祥颖刘建军李静
Owner SHANDONG FOOD & FERMENT IND RES & DESIGN INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com