Persimmon peel/leaf extract modification and application thereof to oil field water treatment

A technology of leaf extract and persimmon skin, which is applied in the field of preparation of plant extract-derived multifunctional water treatment agent, can solve the problems of limiting the industrial production and application of persimmon skin/leaf extract, low solubility, easy fermentation, etc.

Inactive Publication Date: 2013-05-15
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the direct extract of persimmon skin / leaf has low solubility, and it is easy to produce precipitation when concentrated, and because it contains a large amount of polysaccharides, it is easy to ferment during storage, which limits the industrial production and application of persimmon skin / leaf extract

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of persimmon skin / leaf extract derived multifunctional water treatment agent, comprising the following steps:

[0016] In the first step, the persimmon skin is pulverized, and the particle size is within 2 centimeters, and put into a container. The persimmon skin is a product obtained by naturally air-drying the peel of the persimmon in the process of making persimmon;

[0017] In the second step, add 10 times the solvent of persimmon skin quality to the container, and reflux extraction for 8 hours, and the solvent is industrial tap water;

[0018] The third step is to cool the container to room temperature, add an alkylating agent and an aminating agent accounting for 0.01% of the mass of the persimmon skin in a molar ratio of 1.5:1, and then heat up and reflux for 6 hours. The alkylating agent is chemically pure Formaldehyde, the amination reagent is chemically pure dimethylamine;

[0019] In the fourth step, the container is cooled to room tempe...

Embodiment 2

[0022] A preparation method of persimmon skin / leaf extract derived multifunctional water treatment agent, comprising the following steps:

[0023] In the first step, the persimmon skin is pulverized, and the particle size is within 2 centimeters, and put into a container. The persimmon skin is a product obtained by naturally air-drying the peel of the persimmon in the process of making persimmon;

[0024] In the second step, add 5 times the solvent of persimmon skin quality to the container, and reflux extraction for 8 hours, the solvent is chemically pure ethanol;

[0025] The third step is to cool the container to room temperature, add an alkylating agent and an aminating agent accounting for 0.05% of the mass of the persimmon skin in a molar ratio of 1.2:1, and then heat up and reflux for 6 hours. The alkylating agent is chemically pure Paraformaldehyde, the amination reagent is chemically pure diethylamine;

[0026] In the fourth step, the container is cooled to room temp...

Embodiment 3

[0029] A preparation method of persimmon skin / leaf extract derived multifunctional water treatment agent, comprising the following steps:

[0030] In the first step, the persimmon skin is pulverized, and the particle size is within 2 centimeters, and put into a container. The persimmon skin is a product obtained by naturally air-drying the peel of the persimmon in the process of making persimmon;

[0031] In the second step, add 20 times the solvent of persimmon skin quality to the container, and reflux extraction for 6 hours, and the solvent is industrial tap water;

[0032] The third step is to cool the container to room temperature, add an alkylating agent and an aminating agent accounting for 0.05% of the mass of persimmon skin, and a molar ratio of 1:1.2, and then heat up and reflux for 4 hours. The alkylating agent is chemically pure Paraformaldehyde, amination reagent is chemically pure diethanolamine;

[0033] In the fourth step, the container is cooled to room temper...

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PUM

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Abstract

The invention discloses a method for preparing a persimmon peel/leaf extract derivative multifunctional water treatment agent. The method comprises the following steps of: at first, crushing persimmon peels/leaves, containing the crushed persimmon peels/leaves into a container, adding a solvent into the container, reflux extracting, cooling the container to the room temperature, adding an alkylating agent and an aminating agent, heating, refluxing, cooling the container to the room temperature finally, filtering the persimmon peel/leaf powder, evaporating filtrate and crushing to obtain the brown granular solid multifunctional water treatment agent. The multifunctional water treatment agent has the performances of corrosion inhibition, scale inhibition, iron ion stability and sterilization as well as excellent environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of preparation of a plant extract-derived multifunctional water treatment agent, in particular to the modification of persimmon skin / leaf extract and its application in oilfield water treatment. Background technique [0002] Oilfield water treatment requires the use of various water treatment agents, such as corrosion inhibitors, scale inhibitors, iron ion stabilizers and fungicides. At present, there are many kinds of chemicals used in oilfields, and the dosage is large, and they are mainly artificial synthetic materials, which are not environmentally friendly and renewable. Especially in terms of fungicides, the fungicides commonly used in oil fields are quaternary ammonium salts and chlorine dioxide. Due to the single variety and long-term use, the drug resistance of oil field bacteria has gradually increased. The solution is often to simply increase the dosage of fungicides, which ultimately leads to a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F1/50A01N65/18A01P1/00
Inventor 张洁陈刚
Owner XI'AN PETROLEUM UNIVERSITY
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