Method for direct production of gluconic acid sodium salt with dry method
A sodium gluconate, direct technology, applied in the field of dry method direct catalytic oxidation to produce sodium gluconate, can solve the problems of environmental pollution, high production cost, etc., achieve the effect of reducing production process, reducing production cost, saving water and labor
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Embodiment 1
[0013] Example 1 Preparation of Sodium Gluconate Using Corn as Raw Material
[0014] (1) Corn crushing: using the existing crushing equipment to crush and degrease the dry corn raw material.
[0015] (2) Jet liquefaction: the corn flour obtained in step 1 is used as raw material, and the liquefaction enzyme adopts Liguozyme R suprc (purchased from Novozymes), the addition amount is 0.30Kg / t, a low-pressure injector with gas is used, the pressure difference between the material pressure and the steam pressure is 0.3mPa, the first injection temperature is 105°C, and the injection time is 10min , after the first spraying, maintain 95°C for 60 minutes, the iodine reacts with maroon, and the DE value is 14%; the second spraying at a high temperature of 135°C makes the protein highly cohesive and stratified, and removes the protein.
[0016] (3) Filter press to remove slag: the feed liquid obtained in step 2 is separated and slag removed with an existing plate and frame filter pres...
Embodiment 2
[0021] Example 2 Preparation of Sodium Gluconate Using Rice as Raw Material
[0022] (1) Rice crushing: using existing crushing equipment to crush and degrease the dry rice raw material.
[0023] (2) Jet liquefaction: the rice flour obtained in step 1 is used as raw material, and the liquefaction enzyme adopts Liguozyme R suprc (purchased from Novozymes), the addition amount is 0.70Kg / t, using a low-pressure injector with gas with the material, the pressure difference between the material pressure and the steam pressure is 0.3mPa, the first injection temperature is 110°C, and the injection time is 12min , after the first spraying, maintain 90min at 95°C, the iodine reacts with maroon, and the DE value is 16%; the second spraying at a high temperature of 135°C makes the protein highly cohesive and stratified, and removes the protein.
[0024] (3) Filter press to remove slag: the feed liquid obtained in step 2 is separated and slag removed with an existing plate and frame filte...
Embodiment 3
[0029] Example 3 Preparation of sodium gluconate with dried sweet potato as raw material
[0030] (1) Sweet potato dry crushing: using existing crushing equipment to crush and degrease the dry sweet potato raw material.
[0031] (2) Jet liquefaction: the sweet potato powder obtained in step 1 is used as raw material, and the liquefaction enzyme adopts Liguozyme R suprc (purchased from Novozymes), the addition amount is 0.50Kg / t, a low-pressure injector with gas is used, the pressure difference between the material pressure and the steam pressure is 0.3mPa, the first injection temperature is 108°C, and the injection time is 11min , after the first spraying, maintain 95°C for 80 minutes, the iodine reacts with maroon, and the DE value is 15%; the second spraying at a high temperature of 135°C makes the protein highly cohesive and stratified, and removes the protein.
[0032] (3) Filter press to remove slag: the feed liquid obtained in step 2 is separated and slag removed with a...
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