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A kind of continuous hydrolysis reaction equipment and hydrolysis reaction method of diosgenin

A technology of diosgenin and hydrolysis reaction, applied in chemical instruments and methods, preparation of sugar derivatives, monosaccharides, etc., can solve problems such as polluting water sources, destroying forests, and difficulty in drinking water for humans and animals, achieving clear products and improving the efficiency of desugaring reactions Effect

Active Publication Date: 2016-08-24
十堰赟天生物科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The environmental pollution problem caused by extracting diosgenin from turmeric has always been the bottleneck of the industry
About 500 tons of strong acid wastewater will be produced for every ton of saponin produced. The COD concentration in the wastewater is about 32,000 mg / liter, and its pollution level is 12 times higher than that of papermaking wastewater. After treatment, the COD content in the wastewater can be reduced to 500 to 800 mg / L or so, but this is still far below the COD content of 100 mg / L stipulated in the first-level standard for the comprehensive discharge of corporate sewage
Perennial sewage can lead to difficulty in drinking water for humans and animals, reduce crop production, and destroy forests and vegetation, lead to soil acidification, affect groundwater, and pollute water sources.

Method used

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  • A kind of continuous hydrolysis reaction equipment and hydrolysis reaction method of diosgenin
  • A kind of continuous hydrolysis reaction equipment and hydrolysis reaction method of diosgenin
  • A kind of continuous hydrolysis reaction equipment and hydrolysis reaction method of diosgenin

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Experimental program
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Effect test

Embodiment 1

[0062] The continuous hydrolysis reaction technology of dioscin includes the following key technical links:

[0063] First, add water to the rhizome of yam yam, and the weight ratio of the rhizome of yam yam to water is 1:1-1:5; use a filter screen with a pore size of 0.5-2 mm to coarsely filter to remove the crude fiber and oar residue, and then obtain Serum, the slurry is left to settle, and is naturally divided into a supernatant, a middle suspension layer and a lower sedimentation layer. The dioscin suspension is the middle suspension layer, and the middle suspension layer is used as the dioscin liquid, or the middle suspension layer is dried as Dioscin powder, or directly extract dioscin from the dried powder of the middle suspension layer with water-saturated n-butanol solution or surfactant solution (such as OP-10) or water-saturated ethyl acetate or 50-95v / v% ethanol, Or directly extract the dioscin from the middle suspension layer with water-saturated n-butanol soluti...

Embodiment 2

[0068] First, add water to the rhizome of yam, and grind the pulp, the weight ratio of material to water is 1:1-1:5, and use a filter screen with a pore size of 0.5-2 mm to roughly filter to remove the coarse fiber and oar residue, and then obtain the slurry, and statically grind the slurry. Place the sediment, which is naturally divided into three layers. The lower layer of sediment is mainly starch. The upper layer of clear water is taken out for the next round of yam rhizome refining, and the suspension in the middle layer is separated--its main component is dioscin. After drying and pulverizing the middle layer suspension, extract the dioscin in the powder with water-saturated n-butanol or surfactant (such as OP-10) or water-saturated ethyl acetate or 50-95v / v% ethanol, and concentrate the extract Dried to obtain dioscin powder, put the obtained diosgenin powder into the autoclave and add water, then add hydrochloric acid to adjust the pH value of the autoclave suspension t...

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Abstract

The invention discloses a continuous hydrolysis reaction device and hydrolysis reaction method for dioscin. The continuous hydrolysis reaction device comprises a high-pressure reaction kettle, a concentration tank, a precipitation tank, a filtration tank, an acid water storage tank, an acid water connection pipe, a sealing pipe, a bidirectional high-pressure pump, a stirring motor, a stirring impeller, a heater, a water-bath heater and a condenser, wherein the bidirectional high-pressure pump is communicated with the interior of the high-pressure reaction kettle; the high-pressure reaction kettle is communicated with the concentration tank and the precipitation tank through a high-pressure reaction kettle discharge outlet; the condenser and the water-bath heater are respectively arranged at the top and the bottom of the concentration tank; the condenser is communicated with the interior of the high-pressure reaction kettle; the high-pressure reaction kettle is communicated with the filtration tank and the acid water storage tank through a through hole formed in the bottom of the high-pressure reaction kettle; the heater is arranged at the bottom of the high-pressure reaction kettle; the acid water storage tank is communicated with the interior of the high-pressure reaction kettle through the acid water connection pipe and the sealing pipe; the stirring motor is connected with the stirring impeller. Through the adoption of the continuous hydrolysis reaction device and the hydrolysis reaction method, hydrolysis reactions can be initiated by adding a mineral acid only once, no acid supplement is needed during the reactions, no acid water is discharged, the production cost is low, and the production efficiency is high.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to continuous hydrolysis reaction equipment and a hydrolysis reaction method of dioscin, in particular to a continuous high-efficiency chemical reactor for dioscin and a method for producing diosgenin by efficient zero-pollution hydrolysis of dioscin. Background technique [0002] Diosgenin is an important pharmaceutical raw material. More than two hundred kinds of drugs can be synthesized by using diosgenin, which has a wide range of uses. Diosgenin is mainly present in the rhizomes of Dioscorea plants in the form of diosgenin. Dioscorea scutellaria is mainly cultivated in my country, and the rhizome of Dioscorea scutellaria is harvested to prepare diosgenin. The key technology for preparing diosgenin from the rhizome of Dioscorea shield leaf is to use a suitable method to break the glycosidic bond of diosgenin and desugar to obtain diosgenin. The reaction principle is as follows ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J71/00C07H3/02C07H1/00
CPCC07H1/00C07H3/02C07J71/0005
Inventor 董静洲雷灿卢大炎
Owner 十堰赟天生物科技发展有限公司