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A kind of pulp deodorant and its preparation method and application

A deodorant and pulp technology, applied in chemical instruments and methods, papermaking, textiles and papermaking, etc., can solve problems affecting product quality and enterprise benefits, peculiar smell of finished paper, inability to guarantee product quality, etc., to achieve environmentally friendly, formula The effect of simple and simplified preparation process

Active Publication Date: 2021-05-11
四川鸿康科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The papermaking industry adopts closed water circulation, zero-emission papermaking process, waste water recycling, and a large amount of organic matter sedimentation and fermentation. Various microorganisms and fungi breed, spoil and deteriorate, which will cause mildew in the papermaking circulating water, causing stench, and the finished paper produced is less Large odor, unable to guarantee product quality, affecting product quality and corporate benefits

Method used

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  • A kind of pulp deodorant and its preparation method and application
  • A kind of pulp deodorant and its preparation method and application
  • A kind of pulp deodorant and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 The pulp deodorant that the present embodiment enumerates has the following composition (volume percentage):

[0023]

[0024] The aforementioned isothiazolinone is a mixture of 5-chloro-2-methyl-1-isothiazolin-3-one and 2-methyl-1-isothiazolin-3-one with a content of 14%, and glutaraldehyde is The content is 50% aqueous solution, the hydrogen peroxide content is 30%, the sodium salt is sodium silicate, the surfactant is fatty alcohol polyoxyethylene ether, and the ratio of the two is 1:1.

[0025] Preparation process: First, add 100% of the water consumption to the reaction kettle, first add the stabilizer (composite of sodium salt and surfactant) under constant stirring, stir for 20 minutes, then add isothiazolinone, Glutaraldehyde and hydrogen peroxide were stirred for 15 minutes to obtain the pulp deodorant. All manipulations were performed at room temperature.

Embodiment 2

[0026] Embodiment 2 The paper pulp deodorant that the present embodiment enumerates has the following composition (volume percentage):

[0027]

[0028] The aforementioned isothiazolinone is a mixture of 5-chloro-2-methyl-1-isothiazolin-3-one and 2-methyl-1-isothiazolin-3-one with a content of 14%, and glutaraldehyde is The content is 50% aqueous solution, the hydrogen peroxide content is 30%, the stabilizer is a compound of sodium salt and surfactant, the sodium salt is sodium silicate, and the surfactant is fatty alcohol polyoxyethylene ether, and the ratio of the two is 1 :1.

[0029] Preparation process: First, add 100% of the water consumption to the reaction kettle, first add the stabilizer (composite of sodium salt and surfactant) under constant stirring, stir for 10 minutes, then add isothiazolinone, Glutaraldehyde and hydrogen peroxide were stirred for 12 minutes to obtain the pulp deodorant. All manipulations were performed at room temperature.

Embodiment 3

[0030] Embodiment 3 The paper pulp deodorant that the present embodiment enumerates has the following composition (volume percentage):

[0031]

[0032] The aforementioned isothiazolinone is a mixture of 5-chloro-2-methyl-1-isothiazolin-3-one and 2-methyl-1-isothiazolin-3-one with a content of 14%, and glutaraldehyde is The content is 50% aqueous solution, the hydrogen peroxide content is 30%, the stabilizer is a compound of sodium salt and surfactant, the sodium salt is sodium silicate, and the surfactant is fatty alcohol polyoxyethylene ether, and the ratio of the two is 1 :1.

[0033] First, add 100% of the amount of water used in the reactor, first add the stabilizer (composite of sodium salt and surfactant) under constant stirring, stir for 15 minutes, and then add isothiazolinone and glutaraldehyde in proportion , hydrogen peroxide, and stirred for 10 min to obtain the pulp deodorant. All manipulations were performed at room temperature.

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Abstract

The invention relates to the field of environmental protection, in particular to a deodorizing treatment for paper pulp, which contains the following components in volume percentage: 10% to 20% of isothiazolinone, 10% to 20% of glutaraldehyde, and 20% to 40% of hydrogen peroxide , stabilizer 0.1% ~ 0.3%, water, the balance. The pulp deodorant of the present invention has a simple formula; the synergistic effect between the components effectively improves the deodorizing and sterilizing ability, effectively reduces the ammonia nitrogen, chemical oxygen demand, microorganisms and other indicators in the pulp, and removes the pulp circulating water and The odor of pulp sewage greatly reduces the odor of finished paper and improves the quality of paper products.

Description

technical field [0001] The invention belongs to the technical field of papermaking pulp treatment, in particular to a deodorant for papermaking pulp treatment, deodorization of pulp and finished paper, its preparation process and application. Background technique [0002] The papermaking industry adopts closed water circulation, zero-emission papermaking process, waste water recycling, and a large amount of organic matter sedimentation and fermentation. Various microorganisms and fungi breed, spoil and deteriorate, which will cause mildew in the papermaking circulating water, causing stench, and the finished paper produced is less If there is a large odor, the product quality cannot be guaranteed, which affects the product quality and enterprise benefits. [0003] In order to fundamentally solve the problem of odor and mildew in pulp circulating water and pulp sewage odor and corruption, many scientific and technological workers have conducted a lot of research on this and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/00C02F1/72D21C11/00C02F103/28
CPCC02F1/00C02F1/722C02F2103/28C02F2303/02C02F2305/04D21C11/0021
Inventor 殷捷李平郑文强
Owner 四川鸿康科技股份有限公司