Preparation method for high-base-number crystalline calcium sulfonate

A high-alkaline value calcium sulfonate, crystalline technology, applied in the preparation of organic compounds, chemical instruments and methods, petroleum industry, etc., to achieve the effects of strong applicability, high extreme pressure, and convenient operation

Inactive Publication Date: 2015-11-11
JINZHOU DPF TH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This invention relates to an improved method or composition that can make certain types of chemicals more effective without requiring expensive materials like calcium hydroxide (Ca(OH)2). These new compositions are made from low-cost starting substances called calcite instead of traditional methods such as acidification or solvent extraction processes. They also exhibit specific properties compared to existing products due to their unique structures formed during manufacturing.

Problems solved by technology

Technically speaking, there exist two ways to make highly basic calcium salts like calcite or calcined gypsum by changing their chemical structures from being ammonium salt type molecules called calcium nitrogen monoxide hydrosoluble through oxidation reactions between different atoms on them. These methods require expensive equipment that can produce unwanted impurities such as chlorides which may affect downstream processes.

Method used

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  • Preparation method for high-base-number crystalline calcium sulfonate
  • Preparation method for high-base-number crystalline calcium sulfonate
  • Preparation method for high-base-number crystalline calcium sulfonate

Examples

Experimental program
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Effect test

Embodiment 1

[0025] In a 1-liter reactor, add 200g of amorphous calcium sulfonate with high base value, 20g of methanol, 15g of water and 200g of neutral oil, heat up to 35°C to 40°C, and add calcium sulfonate containing crystalline calcite (calcite content is 20wt%) 6g, mix evenly and seal the reactor, feed carbon dioxide at a rate of 0.12L / min to 0.14L / min, raise the temperature and keep it at 80°C to 85°C until the amorphous All calcium carbonate is converted into calcite crystals; infrared monitoring is carried out during the production process, and the amorphous calcium carbonate reaches 860cm after 2 hours of reaction -1 The peak (amorphous) disappears, all converted to 880cm -1 peaks (calcite), such as figure 1 and figure 2 Stop reaction, steam methanol and water, obtain viscous high-alkali value crystalline (calcite) calcium sulfonate; use this high-alkali value crystalline (calcite) calcium sulfonate for lubricating grease, its various performances are excellent, Its physical ...

Embodiment 2

[0027] In a 1 liter reaction kettle, add 200g of amorphous calcium sulfonate with high base value, 220g of neutral oil, 15g of dodecylbenzenesulfonic acid, 12g of n-butanol and 15g of water, heat up to 45°C to 50°C and stir to mix After uniformity, seal the reactor, feed carbon dioxide at a rate of 0.12L / min to 0.14L / min, raise the temperature and keep it at 75°C to 80°C, and feed carbon dioxide at a rate of 0.12L / min to 0.14L / min until The amorphous calcium carbonate in the high alkali value calcium sulfonate is all converted into calcite crystals; infrared monitoring is carried out during the production process, and the amorphous calcium carbonate reaches 860cm after 3 hours of reaction -1 The peak (amorphous) disappears, all converted to 880cm -1 peaks (calcite), such as figure 1 and figure 2 ;Stop the reaction, evaporate n-butanol and water to obtain viscous high-alkali value crystalline (calcite) calcium sulfonate; use this high-alkaline value crystalline (calcite) cal...

Embodiment 3

[0031] In the reactor of 1 liter, add 200g amorphous calcium sulfonate with high alkali value, 200g neutral oil, 8g dodecylbenzenesulfonic acid, 14g calcium sulfonate containing crystalline calcite (calcite content is 30wt%) , 10g of n-butanol and 15g of water, heat up to 45°C ~ 50°C, stir and mix evenly, seal the reactor, feed carbon dioxide at a rate of 0.12L / min ~ 0.14L / min, raise the temperature and keep it at 75°C ~ 80°C, Until the amorphous calcium carbonate in the high alkali value calcium sulfonate is all converted into calcite crystals. Infrared monitoring is carried out during the production process. After 30 minutes of reaction, the amorphous calcium carbonate is 860cm -1 The peak (amorphous) disappears, all converted to 880cm -1 peaks (calcite), such as figure 1 and figure 2 ;Stop the reaction, evaporate n-butanol and water to obtain viscous high-alkali value crystalline (calcite) calcium sulfonate; use this high-alkaline value crystalline (calcite) calcium sul...

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Abstract

A preparation method for high-base-number crystalline calcium sulfonate comprises the following steps: adopting amorphous high-base-number calcium sulfonate as a raw material, adding a transforming agent under the existence of lower alcohol and water, heating, uniformly mixture, introducing carbon dioxide to enable all amorphous calcium carbonate micelles in the amorphous high-base-number calcium sulfonate to be converted into crystalline calcite micelles to obtain a product (high-base-number crystalline calcium sulfonate). The preparation method has the advantages that the process is simple, the operation is convenient, the applicability is high, the requirements on the raw material of the amorphous high-base-number calcium sulfonate is not high, the preparation method is suitable for any high-base-number calcium sulfonate, and the problem in selectivity of different conversion systems to conversion of calcium sulfonate is solved; the product structure adopts the calcite crystallization form, and is stable; the product is high in extreme pressure property and thickening capability; all indexes of the product can meet the requirements.

Description

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Claims

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Application Information

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Owner JINZHOU DPF TH CHEM CO LTD
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