Anhydrous / Monohydrate Citric Acid Making Machine / Production Line / Turnkey Project

Citric Acid Production Line

Technical parameters:

• Fermentation level : 16%
• Total product yield: 80%
• Sugar-acid conversion: 95%
• Seed culture period: 40h
• Fermentation period: 70h

Raw material consumption (to yield every 1 ton citric acid)

Corn: 2.23T

Calcium carbonate:0.9T

Sulfuric acid: 0.9T

Electricity:600kwh

Water:35T

Steam: 4t/t

The product quality standard: in accordance with the newest Britain, the United States pharmacopoeia standards

Technical scheme

1. Technological process:

Corn → receiving&storage→ remove impurities → measuring→ crushing → sugaring →fermentation → extract →refined → dry →packaging → sampling → put in storage

2. Sugaring technological process

Corn → impurity → crushing → measuring → pulping → enzymolysis → Filter → sugar for fermentation; sugar residue containing 25% protein feed for sale

3. Seed preparation and fermentation process:

Slant strains → 2L Triangle bottle mouldy bran seeds → seed culture →citric acid fermentation→ Ventilation Fermentation → fermentation finished in 70 hours→ extraction process

4. Extract process:

mature fermented mash→ filter (mushroom residue can be used as feed) → clear liquid→ add calcium carbonate neutralization → filter→calcium citrate washing → belt filter → add sulfuric acid reaction→belt filter → pure citric acid →decoloring→ ion-exchange → pure citric acid liquor into the refining process

5. Refine process:

Pure citric acid liquor → concentration → crystal → centrifugal separation → drying → finished product citric acid →packaging →sampling →storage

Put the mother liquor of centrifugal separation into the clear liquid of fermentation filtering,then back into the each process to continue extract the citric acid.

For more information,pls feel free to contact us.