A process for extracting cellulose from Suaeda salsa
A process method, the technology of Suaeda salsa, applied in the field of cellulose extraction, can solve the problems of low yield and low cellulose purity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
example 1
[0025] A process for extracting cellulose from Suaeda salsa, comprising the following steps:
[0026] (1) Hydrolysis pretreatment: get freshly picked Suaeda salsa stems and leaves, wash, remove impurities, and then homogenate, add deionized water with 5 times the volume of Suaeda salsa stems and leaves to heat and soak, filter and collect the filter residue through supercritical extraction ( The temperature is 40°C, the time is 30min, the extraction pressure is 20Mpa), and then filtered to collect the solid filtrate;
[0027] (2) Degreasing treatment: get the solid filtrate that step (1) collects, add the extractant of 5 times volume of solid filtrate weight (volume concentration is that the volume ratio of 30% ethanol, ethyl acetate and benzene is 1:1:1 ), through subcritical extraction (the temperature is 40°C, the extraction time is 30min, and the extraction pressure is 0.5Mpa), centrifuged and filtered to collect the solid filtrate;
[0028] (3) Steaming treatment: get th...
example 2
[0034] A process for extracting cellulose from Suaeda salsa, comprising the following steps:
[0035] (1) Hydrolysis pretreatment: get freshly picked Suaeda salsa stems and leaves, wash, remove impurities, and homogenate, add deionized water with 8 times the volume of Suaeda salsa stems and leaves to heat and soak, filter and collect the filter residue through supercritical extraction ( The temperature is 48°C, the time is 40min, the extraction pressure is 22Mpa), and then filtered to collect the solid filtrate;
[0036] (2) Degreasing treatment: get the solid filtrate that step (1) collects, add the extractant of 8 times volume of solid filtrate weight (volume concentration is that the volume ratio of 48% ethanol, ethyl acetate and benzene is 1.5:1:1.5 ), through subcritical extraction (the temperature is 45°C, the extraction time is 40min, and the extraction pressure is 1Mpa), centrifuged and filtered to collect the solid filtrate;
[0037] (3) Steaming treatment: take the ...
example 3
[0043] A process for extracting cellulose from Suaeda salsa, comprising the following steps:
[0044] (1) Hydrolysis pretreatment: get freshly picked Suaeda salsa stems and leaves, wash, remove impurities, and homogenate, add 12 times the volume of Suaeda salsa stems and leaves to heat and soak, and filter the collected filter residue through supercritical extraction ( The temperature is 53°C, the time is 45min, the extraction pressure is 26Mpa), and then filtered to collect the solid filtrate;
[0045] (2) Degreasing treatment: get the solid filtrate that step (1) collects, add the extractant of 10 times volume of solid filtrate weight (volume concentration is that the volume ratio of 53% ethanol, ethyl acetate and benzene is 2.5:1:2 ), through subcritical extraction (the temperature is 62°C, the extraction time is 50min, and the extraction pressure is 1.8Mpa), centrifuged and filtered to collect the solid filtrate;
[0046](3) Steaming treatment: get the solid filtrate coll...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More