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Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof

A chemical-mechanical, penetrant technology, applied in the direction of fiber raw material, fiber raw material treatment, pretreatment with alkaline compounds, etc., can solve the problems of poor pertinence and poor effect of penetrant, and achieves deep penetration and surface reduction. Tension, easy penetration effect

Active Publication Date: 2015-07-22
HUNAN BAILIN BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the technical problem that the prior art penetrating agent is not highly targeted and has poor effect, the object of the present invention is to provide a penetrating agent and a preparation method thereof. Strong resistance, good penetration and softening effect, more energy saving and cost reduction

Method used

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  • Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof
  • Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof
  • Penetrating agent for chemical-mechanical pulping with wood being raw material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare a 1-ton reactor with heating function, 135KG deionized water, 350KG sodium dodecyl diphenyl ether disulfonate [C 24 h 32 o 7 S 2 Na 2 】, 15KG sodium sulfate, 150KG sodium dodecylbenzenesulfonate [C 18 h 29 NaSO 3 】, 350KG isomeric (10) alcohol polyoxyethylene (5) ether [C 10 h 21O (CH 2 CH 2 O) 5 H]. Add 135KG deionized water to the reaction kettle, heat to 80°C, add 350KG sodium dodecyl diphenyl ether disulfonate [C 24 h 32 o 7 S 2 Na 2 】, 15KG sodium sulfonate, start the agitator and heat up, emulsify at a speed of 1000 rpm, during which the temperature is controlled between 60-70°C, after 30 minutes, add 150KG sodium dodecylbenzenesulfonate【C 18 h 29 NaSO 3 ], the rotation speed remains unchanged, continue to heat and emulsify, and control the temperature below 70°C; after 45 minutes, add 350KG of isomeric (10) alcohol polyoxyethylene (5) ether [C 10 h 21O (CH 2 CH 2O ) 5 H], stop heating, reduce the rotating speed to 700 rpm, a...

Embodiment 2

[0038] Prepare one set of 1-ton reaction kettle with heating function, 140KG deionized water, 300KG sodium dodecyl diphenyl ether disulfonate, 10KG sodium sulfate, 250KG sodium dodecylbenzenesulfonate, 300KG isomerization (10 ) alcohol polyoxyethylene (5) ether. Add 140KG deionized water to the reaction kettle, heat to 80°C, add 300KG sodium dodecyl diphenyl ether disulfonate, 10KG sodium sulfonate, start the agitator and heat it, and emulsify at a speed of 1000 rpm. The temperature was controlled between 60-70°C. After 30 minutes, 150KG sodium dodecylbenzenesulfonate was added. The rotating speed was constant, and the heating and emulsification was continued. The temperature was controlled at 70°C. After 45 minutes, 300KG isomerization (10 ) alcohol polyoxyethylene (5) ether, stop heating, reduce the rotating speed to 700 rpm, and emulsify for 30 minutes to obtain a transparent, uniform brown-yellow viscous liquid. Here it is the product in the present invention: a high-effi...

Embodiment 3

[0039] Embodiment 3 Product use effect analysis of the present invention:

[0040] 1 Experimental part

[0041] 1.1 Experimental raw materials

[0042] Wood chips: from the chemical pulp production line of Yueyang Paper Industry, the quality of wood chips is relatively good;

[0043] Penetrant: the product produced in the present invention---the product of embodiment 1

[0044] Sodium hydroxide, hydrogen peroxide and EDTA, analytical reagents;

[0045] 1.2 Experimental Instruments

[0046] 1L small experimental cooking pot

[0047] Chip Extrusion Spiral

[0048] High Consistency Refiner

[0049] PFI disc grinding

[0050] Transcriber

[0051] 1.3 Production process

[0052] Wood chips→pre-steaming→first-stage extrusion→1# reaction stage→second-stage wood chip extrusion→second-stage chemical pre-impregnation→2# reaction stage→one-stage high-consistency milling→high-consistency reaction stage→second-stage high-consistency milling→delamination Concentrate the pool into ...

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Abstract

The invention discloses a penetrating agent for chemical-mechanical pulping with wood being raw material and a preparation method thereof. The penetrating agent is formed by dodecylated diphenyl ether disulfonate, sulfate, dodecyl benzene sulfonate, isomeric alcohol ethoxylates (5) and deionized water in a compound mode. The penetrating agent is specially used for chemical-mechanical pulping with the wood being the raw material, is high in pertinence and good in permeation and softening effect, saves more energy and lowers the cost. Meanwhile, the proportion of cellulose in made pulp is substantially increased, the proportion of fiber bundles is substantially decreased, and the strength of chemical-mechanical pulp is improved.

Description

technical field [0001] The invention belongs to the field of penetrants used in papermaking and pulping processes, and in particular relates to a penetrant for chemical-mechanical pulping with wood as raw material and a preparation method thereof. Background technique [0002] In pulp and papermaking enterprises, pulp is the raw material for papermaking. The sources of pulp mainly include waste paper pulping, chemical pulping, and chemical mechanical pulping. As the supply of raw materials becomes increasingly tight, the yield ratio of chemical mechanical pulping The yield rate of chemical pulping is almost doubled, so among many paper types, more and more companies use chemical mechanical pulp instead of chemical pulp, and companies that use chemical mechanical thermal grinding to make pulp are also becoming more and more common. [0003] In chemical mechanical pulping, wood chips are actually washed and screw extruded, and then soaked in liquid medicine. The formula and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/16D21C1/06
CPCD21B1/16D21C1/06
Inventor 罗宝林
Owner HUNAN BAILIN BIOLOGICAL TECH
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