Environment-friendly pulping agent and process

A kind of pulping and environmental protection technology, which is applied in the direction of pulping of cellulose raw materials, non-fiber pulp addition, inorganic compound addition, etc., can solve the problems of economic loss, wheat straw pulping pollution, wheat straw waste, etc., achieve short soaking time and benefit The effect of environmental protection

Inactive Publication Date: 2007-04-11
北京聚德源环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, due to the serious pollution of wheat straw pulping in my country, 90% of the wheat straw pulping production lines have been shut down, a large number of pulping equipment have been left idle, and wheat straw has been wasted, causing huge economic losses

Method used

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  • Environment-friendly pulping agent and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Raw materials are prepared according to the following weight: 10 kilograms of animal oil, 30 kilograms of sodium dodecylbenzenesulfonate, 40 kilograms of alkaline hydrogen peroxide, 15 kilograms of sodium sulfite, and 5 kilograms of potassium ferricyanide, wherein, in alkaline hydrogen peroxide , 33 kg of sodium hydroxide and 7 kg of hydrogen peroxide.

[0029] Put 10 kg of animal oil into the mixer after dissolving it, add 33 kg of sodium hydroxide and 7 kg of hydrogen peroxide, start the mixer, saponify for 50 minutes, and then add 30 kg of sodium dodecylbenzenesulfonate. After mixing for 10 minutes, add 15 kg of sodium sulfite and 5 kg of potassium ferricyanide respectively. The whole raw material can be discharged after mixing for 30 minutes, and it can be made into a pulping agent after solidification and drying.

[0030] 12 kilograms of pulping agent made above and 0.8 kilograms of magnesium oxide are put into 400 kilograms of water and mix to make the mixed aque...

Embodiment 2

[0039] Except that the raw material consumption of environment-friendly pulping agent is different from embodiment 1, all the other are all the same as embodiment 1.

[0040] The raw material consumption of this embodiment is: 12 kilograms of animal oils, 28 kilograms of sodium dodecylbenzenesulfonate, 42 kilograms of alkaline hydrogen peroxide, 15 kilograms of sodium sulfite, 3 kilograms of potassium ferricyanide, wherein, in alkaline hydrogen peroxide Among them, sodium hydroxide is 36 kilograms, and hydrogen peroxide is 6 kilograms.

Embodiment 3

[0042] Except that the raw material consumption of environment-friendly pulping agent is different from embodiment 1, all the other are all the same as embodiment 1.

[0043] The raw material consumption of this embodiment is: 8 kilograms of animal oil, 32 kilograms of sodium dodecylbenzene sulfonate, 38 kilograms of alkaline hydrogen peroxide, 14 kilograms of sodium sulfite, 8 kilograms of potassium ferricyanide, wherein, in alkaline hydrogen peroxide Among them, sodium hydroxide is 30 kilograms, and hydrogen peroxide is 8 kilograms.

[0044] The product obtained in this example is analyzed for cellulose, and the result is that the coarse pulp is whitish, easy to bleach, soft fiber, not delicate pulp, good water drainage performance, good brightness and high strength. The yield of white pulp is 65%, and the whiteness is 80-85%.

[0045] In the process of the present invention, the recovery and utilization of the medicinal liquid extruded from the pulping machine is an import...

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Abstract

The environment friendly pulping agent is prepared with the materials including animal oil 8-12 wt%, sodium dodecyl benzene sulfonate 28-32 wt%, hydrogen peroxide 38-42 wt%, sodium sulfite 13-17 wt% and potassium ferricyanide 3-8wt%, and through the saponification reaction between animal oil and hydrogen peroxide, and the further mixing with the other materials. The pulping process with the pulping agent includes the steps of spraying and soaking, extruding pulp, milling after adding water, extruding pulp, milling after adding acid, sieving, washing and bleaching. The environment friendly pulping agent has short grass material soaking time, capacity of being recovered for reuse and no environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of improvement of cold dipping pulping and papermaking technology, and specifically relates to an environment-friendly pulping agent and a process. Background technique [0002] At present, due to the serious pollution of wheat straw pulping in my country, 90% of wheat straw pulping production lines have been shut down, a large number of pulping equipment has been left idle, and wheat straw has been wasted, resulting in huge economic losses. [0003] my country is rich in gramineous plant resources, and gramineous plants are good raw materials for papermaking and an indispensable fiber for papermaking. Poaceae plants include wheat straw, straw, cotton stalks, reeds, bamboo, etc. Before the 20th century, wheat straw was the main source of fiber for papermaking in my country. After entering the 21st century, the use of wheat straw fiber has become less and less, which is mainly caused by the pollution of whea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/00D21H17/21D21H17/14D21H17/64D21H17/66D21C3/22D21C1/00
Inventor 刘长如
Owner 北京聚德源环保科技有限公司
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