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Oil-absorbing material and its preparation method and use

An oil-absorbing material, wood technology, applied in chemical instruments and methods, other chemical processes, adsorbed water/sewage treatment, etc., can solve the problems of secondary water pollution, difficult biodegradation, poor compatibility, etc.

Active Publication Date: 2018-11-02
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The surface modification method is mainly to deposit hydrophobic materials such as silicon dioxide, titanium dioxide, and ferrocene on the surface of the fiber. The oil-absorbing material obtained has a good oil-absorbing effect, but the compatibility between the inorganic mineral material and the biomass matrix is ​​poor, and the binding force is low. Refractory to biodegradation, once it falls off during the oil absorption process, it will cause secondary pollution to the water body

Method used

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  • Oil-absorbing material and its preparation method and use
  • Oil-absorbing material and its preparation method and use
  • Oil-absorbing material and its preparation method and use

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preparation example Construction

[0067] See attached figure 1 And attached figure 2 , the preparation method of the oil-absorbing material provided by the invention comprises the following steps:

[0068] Step S1: making wood or agricultural waste into wood or agricultural waste fibers;

[0069] Step S2: dissolving industrial lignin in acetylated chemicals to obtain a first intermediate product;

[0070] Step S3: stirring the first intermediate product for a set time under a set temperature condition to obtain a second intermediate product;

[0071] Step S4: adding the second intermediate product into the acidic solution to obtain the third acidic intermediate product;

[0072] Step S5: After performing solid-liquid separation on the third intermediate product, a solid fourth intermediate product is obtained;

[0073] Step S6: washing the fourth intermediate product to neutrality and then precipitating to obtain a neutral fifth intermediate product;

[0074] Step S7: drying the fifth intermediate produc...

Embodiment 1～20

[0104] Table 1 Operating parameters

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[0107] Continued Table 1-2

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[0110] Continued Table 1-3

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Abstract

The invention discloses an oil absorption material as well as a preparation method and application thereof, and belongs to the technical field of oil absorption materials. Raw materials for preparing the oil absorption material comprises wood or agricultural waste fiber and an acetylization modified lignin solution. The mass ratio of the wood or the agricultural waste fiber to the acetylization modified lignin solution is 1:(5-10). The preparation method comprises the following steps:mixing the wood or the agricultural waste fiber and the acetylization modified lignin solution in the mass ratio of 1:(5-10), so as to prepare an oil absorption material with hygroscopic water; performing solid-liquid separation on the oil absorption material with hygroscopic water, thereby obtaining a solid, that is, the oil absorption material. A preparation device comprises a first container, a second container, a hot-grinding machine, a solid-liquid separation device and a stirring device. The oil absorption material can be used for treating overflowing oil. Agriculture and forestry biomass wastes can be reasonably used.

Description

technical field [0001] The invention relates to the technical field of oil-absorbing materials, in particular to an oil-absorbing material and its preparation method and application. Background technique [0002] A certain degree of leakage (oil spill) will occur in the process of oil extraction, transportation, storage, and processing and refining. Statistics show that 2 million to 10 million tons of crude oil and its products are released into water bodies (rivers, lakes and oceans) through various channels every year, accounting for about 0.5% of the world's total oil production. Oil leakage not only causes the loss of fossil resources, but also poses a serious threat to the ecological security of the location where the leakage occurs. In addition, oil spills will also have a negative impact on fishing, industry, agriculture and tourism. Therefore, timely and effective measures must be taken to deal with oil spill pollution, otherwise it will cause greater environmental...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28
CPCB01J20/24B01J2220/4875C02F1/286
Inventor 袁同琦孙润仓杨昇
Owner BEIJING FORESTRY UNIVERSITY