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Novel process for producing organically modified bentonite

A technology of bentonite and new technology, applied in inorganic chemistry, non-metallic elements, silicon compounds, etc., can solve problems such as poor applicability and difficulty in starting production

Inactive Publication Date: 2010-09-01
淄博联技化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Since bentonite in my country is basically calcium-based, its applicability is poor, and it can only be used in industries with low requirements such as paints and coatings. It is difficult to start production in the field of drilling, or it can only import sodium-based bentonite from abroad at high prices.

Method used

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  • Novel process for producing organically modified bentonite
  • Novel process for producing organically modified bentonite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Put 200Kg of domestic calcium-based bentonite into the reactor, add 25Kg of sodium carbonate at the same time, add 30Kg of water by spraying, stir thoroughly for 30 minutes, add 55Kg of dioctadecyldimethyl ammonium chloride, and continue stirring for 10 minutes. After the stirring was completed, the temperature was rapidly raised to 90°C, and the reaction was sealed for 20 minutes. After the reaction finishes, add the methanol solution of stearic acid in a spray mode. Unloading, transfer to drying program.

[0036] Configure it as an oil-based mud system, measure the readings of R600 and R300 with a Fann35 viscometer, and calculate the YP value according to YP=2*R300-R600.

Embodiment 2

[0038] Put 250Kg of domestic calcium-based bentonite into the reactor, add 40Kg of sodium carbonate at the same time, add 30Kg of water by spraying, stir thoroughly for 30 minutes, add 50Kg of dioctadecyldimethylammonium chloride, and continue stirring for 10 minutes. After the stirring was completed, the temperature was rapidly raised to 90°C, and the reaction was sealed for 20 minutes. After the reaction finishes, add the methanol solution of stearic acid in a spray mode. Unloading, transfer to drying program.

[0039] Configure it as an oil-based mud system, measure the readings of R600 and R300 with a Fann35 viscometer, and calculate the YP value according to YP=2*R300-R600.

Embodiment 3

[0041] Put 150Kg of domestic calcium-based bentonite into the reactor, add 55Kg of sodium carbonate at the same time, add 30Kg of water by spraying, stir thoroughly for 30 minutes, add 50Kg of dioctadecyldimethylammonium chloride, and continue stirring for 10 minutes. After the stirring was completed, the temperature was rapidly raised to 90°C, and the reaction was sealed for 20 minutes. After the reaction finishes, add the methanol solution of stearic acid in a spray mode. Unloading, transfer to drying program.

[0042] Configure it as an oil-based mud system, measure the readings of R600 and R300 with a Fann35 viscometer, and calculate the YP value according to YP=2*R300-R600.

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PUM

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Abstract

The invention relates to a novel process for producing organically modified bentonite, which is characterized by sequentially comprising the following steps of: 1) performing sodium modification on calcium base bentonite with a sodium base salt; 2) performing organic modification on the bentonite obtained by the step 1) with a quaternary ammonium salt; and 3) modifying the bentonite obtained by the step 2) with octadecanoic acid fatty acid. The final product obtained by modifying the common calcium base bentonite has the same viscosifying effect as the American natural sodium base bentonite.

Description

technical field [0001] The invention relates to a production process of organically modified bentonite. Background technique [0002] Bentonite, also known as bentonite or bentonite, is a clay rock mainly composed of montmorillonite—montmorillonite clay rock. The bentonite that appeared in our country is translated as bentonite, bentonite, bentonite, etc., and the accurate name should be montmorillonite clay. [0003] Bentonite is an important non-metallic mineral. The world's bentonite resources are abundant and widely distributed. Bentonite mines are distributed in all continents of the world. Calcium-based bentonite is widely distributed in the world, while sodium-based bentonite is relatively rare, and its production areas are concentrated in a few countries. [0004] The current annual output of bentonite in the United States is more than 4 million tons. With the intensification of the oil crisis and the increase in drilling workload, it is estimated that the annual s...

Claims

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Application Information

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IPC IPC(8): C01B33/44
Inventor 李乐旭王玉鹏
Owner 淄博联技化工有限公司
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