A kind of preparation method of bis-carbamic acid alkyl ester type oil coagulant

A technology of bis-carbamic acid alkyl ester and oil condensing agent, which is applied in the field of preparation of TDI-derived bis-carbamic acid alkyl ester oil condensing agent, can solve the problems of incomplete oil condensing, high cost and large amount of oil, and achieves Good condensate effect, low cost and simple preparation

Active Publication Date: 2015-10-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current common oil-setting agents include sorbitol type, amino acid type, organic salt type, etc., but the commercialized oil-setting agents also have some shortcomings such as incomplete oil-setting, large dosage, and high cost. Therefore, a new type of high-efficiency oil-setting agent was prepared. Has huge environmental and social benefits

Method used

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  • A kind of preparation method of bis-carbamic acid alkyl ester type oil coagulant
  • A kind of preparation method of bis-carbamic acid alkyl ester type oil coagulant
  • A kind of preparation method of bis-carbamic acid alkyl ester type oil coagulant

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specific Embodiment approach 1

[0030] Embodiment 1: In this embodiment, 12CTDI-derived alkyl biscarbamate oil gelling agent is prepared according to the following steps:

[0031] (1) Add 0.05 mol of TDI (2,4 / 2,6-toluene diisocyanate) and 0.10 mol of lauryl alcohol into 100 mL of chloroform, stir evenly, and transfer to a 250 mL three-necked flask.

[0032] (2) The mixture was continuously stirred and reacted in a water bath at 55° C. for 24 hours;

[0033] (3) After the reaction is finished, the temperature is raised to 85° C., and the solvent chloroform is distilled off by atmospheric distillation to obtain a concentrated solution;

[0034] (4) Pour the concentrated solution into a glass plate with d=9.5cm while it is hot, and place it in a vacuum drying oven at 138°C for 8 hours to remove unreacted TDI and improve the purity of the gelling agent.

[0035] (5) Take it out, cool it at room temperature into a white solid block, and pulverize it with a small universal pulverizer for 30 seconds to obtain a 12...

specific Embodiment approach 2

[0037] Specific embodiment two: In this embodiment, 14CTDI-derived alkyl biscarbamate oil gelling agent is prepared according to the following steps:

[0038] (1) Add 0.05mol (actually a little excess) of TDI (2,4 / 2,6-toluene diisocyanate) and 0.10mol of 1-tetradecyl alcohol into 100mL of acetone, stir well, and transfer to 250mL in the three-neck flask.

[0039] (2) The mixture was continuously stirred and reacted in a water bath at 50° C. for 24 hours;

[0040] (3) After the reaction is finished, the temperature is raised to 75° C., and the solvent acetone is distilled off by atmospheric distillation to obtain a concentrated solution;

[0041] (4) Pour the concentrated solution into a glass plate with d=9.5cm while it is hot, and place it in a vacuum drying oven at 135° C. for 8 hours to remove unreacted TDI and improve the purity of the gelling agent.

[0042] (5) Take it out, cool it at room temperature into a white solid block, and pulverize it with a small universal pu...

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Abstract

The invention discloses a preparation method of a TDI (toluene diisocynate) derived type diamino alkyl formate oil coagulating agent, relating to the preparation method of an oil coagulating agent. The method comprises the steps of (1) adding 0.05mol of TDI and 0.10-0.12mol of C4-C22 fatty alcohol or aromatic alcohol into 100-200mL of organic solvent, and uniformly stirring; (2) performing continuous stirring reaction on a mixture at 50-70 DEG C, wherein the reaction time is 5-48 hours; (3) after completing the reaction, removing the solvent by virtue of distillation to obtain a concentrated solution; (4) pouring the concentrated solution into a glass plate while heating, putting into a vacuum drying box at 120-150 DEG C, and performing vacuum drying for 5-12 hours to obtain the TDI derived type diamino alkyl formate oil coagulating agent. The oil coagulating agent prepared by the preparation method can be used for effectively gelatinizing various oil products and organic solvents such as Russian oil, diesel oil, gasoline, soybean oil, peanut oil, cyclohexane, toluene, carbon tetrachloride and the like overflowing into water, and is less in additive amount of the oil coagulating agent, high in oil coagulating speed, high in oil coagulation block strength and complete in oil coagulation.

Description

technical field [0001] The invention relates to a preparation method of an oil coagulant, in particular to a preparation method of a TDI (toluene diisocyanate) derived alkyl biscarbamate type oil coagulant. Background technique [0002] The vigorous development of the marine transportation industry and the continuous development of offshore oil resources have brought huge economic benefits to human beings and at the same time produced serious oil spill pollution accidents, posing a great threat to the marine environment. At present, the prevention and control of oil spill pollution at sea has become a major problem facing mankind. A large-scale oil spill accident will cause a large amount of oil to enter the marine environment instantly, and spread on the sea surface to form a thick oil layer, resulting in a large area of ​​ocean hypoxia and endangering the survival of fish and other aquatic organisms. In addition, hydrocarbons in petroleum are very easy to enter and stay i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C271/28C07C269/02C09K3/32C02F1/40
Inventor 刘宇艳王永臻马涛刘振国吴松全
Owner HARBIN INST OF TECH
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