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Vegetable oil leftover defoamer and preparation method thereof

A technology for scraps and vegetable oil, applied in chemical instruments and methods, drilling compositions and other directions, can solve problems such as serious foaming and difficulty in defoaming, and achieve the effects of low surface tension and reduced preparation costs

Active Publication Date: 2018-10-26
新疆贝肯化学有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a kind of defoamer for vegetable oil leftovers and its preparation method, which overcomes the deficiencies in the prior art mentioned above, and can effectively solve the problem of defoaming agent for existing drilling fluids. The foaming agent has severe foaming caused by surfactants, proteins, solid powders and some polymers, and it is difficult to defoam

Method used

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  • Vegetable oil leftover defoamer and preparation method thereof
  • Vegetable oil leftover defoamer and preparation method thereof
  • Vegetable oil leftover defoamer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1, the vegetable oil leftover defoamer comprises 40 to 60 parts by weight of vegetable oil leftovers, 0.5 to 1 part of decolorizing agent, 0.1 to 0.5 part of protonic acid, and 2 to 10 parts of etherification agent , 20 to 50 parts of solvent naphtha, 0.01 to 0.06 parts of isomerization catalyst, 0.02 to 0.08 parts of phase transfer catalyst, and 0.5 to 10 parts of caustic soda.

Embodiment 2

[0028] Embodiment 2, the vegetable oil leftover defoamer, comprises 40 parts or 60 parts of vegetable oil leftovers by weight, 0.5 part or 1 part of decolorizing agent, 0.1 part or 0.5 part of protonic acid, 2 parts or 10 parts of etherification agent , 20 or 50 parts of solvent naphtha, 0.01 or 0.06 parts of isomerization catalyst, 0.02 or 0.08 parts of phase transfer catalyst, and 0.5 or 10 parts of caustic soda.

Embodiment 3

[0029] Embodiment 3, this vegetable oil leftover defoamer, comprises 45 parts of rapeseed oil leftovers by weight, 0.7 part of decolorizing deodorant of oil product, 0.3 part of concentrated sulfuric acid, 6 parts of aminotrimethane hydrochloride, 3 parts # 44 parts of white oil, 0.01 part of Pt / H-MOR catalyst, 0.06 part of 4-dimethylaminopyridine, and 3.93 parts of caustic soda.

[0030] The preparation method of the vegetable oil leftover defoamer of Example 3 is that after the rapeseed oil leftovers are precipitated, filtered, and dehydrated, 45 parts are added to 0.7 parts of oil product decolorization and deodorization agent, stirred for 0.5 hours to 2 hours, and left to stand for 1 1 hour to 4 hours to obtain crude oil; heat up to 60°C to 80°C, slowly add 0.3 part of concentrated sulfuric acid at a rate of 0.1 part of concentrated sulfuric acid every 10 minutes of stirring, and keep warm for 5 hours to 10 hours to obtain the acidified oil; 45% caustic soda solution to ad...

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Abstract

The invention relates to the technical field of defoaming agents for drilling fluid, and discloses a plant oil leftover defoaming agent and a preparation method thereof. The plant oil leftover defoaming agent is prepared from, by weight, 40-60 parts of plant oil leftover, 0.5-1 part of decolorizing agent, 0.1-0.5 part of protonic acid, 2-10 parts of etherifying agent, 20-50 parts of solvent oil, 0.01-0.06 part of isomerization catalyst, 0.02-0.08 part of phase transfer catalyst and 0.5-10 parts of caustic soda. By means of the plant oil leftover defoaming agent, the problems that severe foaming and difficult defoaming of drilling fluid are caused by surface active agent, protein, solid powder and part of high polymer are effectively solved, a brand-new approach is provided for recycling plant oil leftover, and meanwhile the preparation cost of the defoaming agent can be reduced; the obtained defoaming agent is low in surface tension and has strong defoaming and antifoaming effects for drilling fluid. The defoaming work of foams, caused in different modes, of drilling fluid can be achieved.

Description

technical field [0001] The invention relates to the technical field of defoamers for drilling fluids, and relates to a defoamer for vegetable oil leftovers and a preparation method thereof. Background technique [0002] my country is rich in vegetable oil waste resources, but the composition is complex and the source is unstable. It is necessary to establish a reasonable recycling method and system; improve relevant detection methods; increase policy support; strengthen public opinion on environmental protection and conservation; strengthen cooperation between scientific research departments and enterprises , Take the road of industrialization and large-scale development. However, most of the vegetable oil waste conversion technologies currently available in my country are still in the experimental stage. The literature shows that there are three main methods for the comprehensive utilization of vegetable oil waste: one is to simply process and purify the vegetable oil waste,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/03
CPCC09K8/03
Inventor 刘锋马智徐先国李春伟宋杰段志明李泽斌侯艳英魏珊郭建彬聂天宇苟亮周静华刘金玲张川
Owner 新疆贝肯化学有限公司