Method for preparing green regenerated cellulose fiber by taking vinasse as raw material

A technology of regenerated cellulose and cellulose, applied in the direction of single-component cellulose rayon, spinning solution preparation, fiber raw material treatment, etc., can solve the problems of insufficient development and research on the high-value utilization of distiller's grains, etc. Achieve excellent antibacterial properties, excellent mechanical properties, and good hygroscopicity

Pending Publication Date: 2022-07-29
上海飒卓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, distiller's grain recycling technology has been widely concerned, such as the use of distiller's grains to extract chemical raw materials such as phytic acid, glycerin, xylitol, etc. development and research

Method used

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  • Method for preparing green regenerated cellulose fiber by taking vinasse as raw material
  • Method for preparing green regenerated cellulose fiber by taking vinasse as raw material
  • Method for preparing green regenerated cellulose fiber by taking vinasse as raw material

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The present embodiment provides a method for preparing green regenerated cellulose fibers with distiller's grains as a raw material, and the steps are:

[0046] (1) Preparation of distiller's grains lignocellulose, placing the fragrant white distiller's grains in a 0.5% sodium hydroxide solution for immersion, the immersion bath ratio is 12:1, and the mechanical stirring is carried out at the same time, and the immersion temperature is 50°C, and the immersion time is 1.5h, the stirring speed is 700RPM. After the immersion is completed, 300-mesh stainless steel gauze is used for filtration, repeated water washing, re-filtration, and then drying at 60° C. for 4 hours, and then sieving to obtain distiller’s grains lignocellulose.

[0047] (2) Preparation of distiller's grains cellulose, the above-obtained distiller's grains lignocellulose was added to a 13% sodium hydroxide solution according to a liquor ratio of 9:1 for alkalization, the alkalization temperature was 80°C,...

Embodiment 2

[0052] The present embodiment provides a method for preparing green regenerated cellulose fibers with distiller's grains as a raw material, and the steps are:

[0053] (1) Preparation of lignocellulose from distiller's grains, dipping beer's distiller's grains in a 0.1% sodium hydroxide solution by mass, the immersion bath ratio is 16:1, and at the same time, mechanical stirring is performed, the immersion temperature is 35°C, and the immersion time is 0.5h , the stirring speed is 200RPM. After the immersion is completed, 300-mesh stainless steel gauze is used for filtration, repeated water washing, re-filtration, and then drying at 50° C. for 3 hours, and then sieving to obtain distiller’s grains lignocellulose.

[0054] (2) Preparation of distiller's grains cellulose, the above-obtained distiller's grains lignocellulose was added to 8% sodium hydroxide solution according to the liquor ratio of 5:1 for alkalization, the alkalization temperature was 60°C, and the alkalization ...

Embodiment 3

[0059] (1) The preparation of distiller's grains lignocellulose, the mixed distiller's grains with beer's grains / white wine's grains of 1 / 2 is placed in a 1% sodium hydroxide solution for dipping, and the dipping bath ratio is 18:1, while mechanical stirring, The immersion temperature was 60°C, the immersion time was 2h, and the stirring speed was 800RPM. After the immersion is completed, filter with 300-mesh stainless steel gauze, repeatedly wash with water, filter again, and then dry at 85° C. for 8 hours and then sieve to obtain distiller’s grains lignocellulose.

[0060] (2) Preparation of distiller's grains cellulose, the above-obtained distiller's grains lignocellulose was added to 14% sodium hydroxide solution according to the liquor ratio of 10:1 for alkalization, the alkalization temperature was 90°C, and the alkalization time was 4h, The alkalized product is filtered with a 300-mesh stainless steel gauze, and the filtered product is transferred to a sodium sulfite / so...

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Abstract

The invention relates to a method for preparing green regenerated cellulose fibers by taking vinasse as a raw material. The method comprises the following steps: soaking vinasse after wine brewing in dilute alkali liquor, filtering, washing with water, drying, separating, crushing obtained vinasse lignocellulose, alkalizing by using alkali liquor, carrying out a lignin removal process, drying, dissolving the obtained vinasse cellulose in a solvent, and spinning. According to the method, starting from the idea of environmental protection and low-carbon cyclic regeneration, the green regenerated cellulose fiber is prepared by taking the vinasse as a raw material, and the fiber is applied to the field of textiles, so that a high-valued application technical path for turning waste into wealth is developed, and technical guidance and theoretical support are provided for application of the vinasse in the field of regenerated cellulose fiber.

Description

technical field [0001] The invention belongs to the field of preparation of functional fibers, in particular to a method for preparing green regenerated cellulose fibers by using distiller's grains as a raw material. Background technique [0002] Regenerated cellulose fibers are most famous for first-generation viscose, second-generation modal and Tencel lyocell. Its excellent hygroscopicity, comfort, skin-friendly and easy dyeing properties are similar to those of natural cellulose, and are widely used in clothing. , home textiles and other textile fields. However, the raw materials for the preparation of these regenerated cellulose are all prepared from high-quality wood, cotton, and cotton linters. A large number of raw material sources are imported, and the raw material sources of the products are limited. [0003] Distiller's grains are the residual solid mixture after the fermented fermented grains are distilled out of the wine, and it is the largest by-product in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01D1/02D21C5/00
CPCD01F2/00D01D1/02D21C5/00
Inventor 杨利军王红杨丽莹
Owner 上海飒卓新材料科技有限公司
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