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Method for sweating and preparing rubber protecting wax

A rubber protective wax, purpose technology, applied in the direction of petroleum wax recovery, wax physical treatment, etc., can solve the problems of long production cycle and low product yield, etc.

Active Publication Date: 2017-12-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods still have disadvantages such as low product yield and long production cycle.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] This embodiment includes: (1) preparation of low melting point components, (2) preparation of high melting point components and (3) blending.

[0074](1) Preparation of low melting point components, including A: emulsification, B: sweating.

[0075] A: Emulsification: Including (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0076] (A1) Oil phase material preparation

[0077] Take 52# semi-refined wax (China Petroleum Daqing Petrochemical, melting point 52.8°C, oil content 1.36%, isoparaffin content 15.37%, content below C23 9.75%, content above C39 0) 77.0Kg, heat to 75°C and melt, add 1.5 Kg sorbitan monooleate, 0.7Kg diethylene glycol monolaurate, 0.2Kg sodium maleic acid monoester sulfonate and 1.8Kg linoleic acid, stir well.

[0078] (A2) Water phase material preparation: KHCO with a concentration of 3.5% was prepared 3 Solution, take 18.8Kg and heat to 80°C.

[0079] (A3) Emulsion preparation...

Embodiment 2

[0112] This embodiment includes: (1) preparation of low melting point components, (2) preparation of high melting point components and (3) blending.

[0113] (1) Preparation of low melting point components, including A: emulsification, B: sweating.

[0114] A: Emulsification: Including (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0115] (A1) Oil phase material preparation

[0116] Take 69.0Kg of 52# semi-refined wax (same as Example 1), heat to 80°C and melt, add 2.6Kg sorbitan monostearate, 0.7Kg sorbitan monopalmitate, 0.5Kg dodecane Base betaine and the n-undecanoic acid of 2.8Kg, stir well.

[0117] (A2) Preparation of water phase material: Prepare a Na2CO3 solution with a concentration of 3.2%, take 24.4Kg and heat it to 85°C.

[0118] (A3) Emulsion preparation: Stir the oil phase material prepared in (A1) process at a speed of 500 rpm, add the water phase material prepared in (A2) process to the o...

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Abstract

The invention discloses a method for sweating and preparing rubber protecting wax. According to the method disclosed by the invention, an oil-soluble emulsifier and oil-soluble acid are dissolved in a sweating raw material to serve as an oil phase material on the basis of an ordinary sweating process, an inorganic salt solution serves as an aqueous phase material and is sweated after emulsification, a tiny space is formed after bubbles and salt solution produced by reaction between the oil-soluble acid and the inorganic salt are discharged, and a channel for discharging oil is formed so as to promote rapid discharge of the oil. Meanwhile, the wax and oil can be forcibly separated by utilizing airflow through a wax layer in the sweating process, so that unsuitable components for the rubber protecting wax in paraffin can be rapidly and effectively removed, and the rubber protecting wax product is produced by blending. The method disclosed by the invention has the advantages of low device investment, simple production process, low operating cost, no environment pollution caused by a solvent and environmental protection, and the rubber protecting wax is capable of achieving long-term effective protecting effect on the rubber and products thereof, and the like.

Description

technical field [0001] The invention belongs to the technical field of special wax production, in particular to a method for sweating and preparing rubber protective wax. Background technique [0002] The existence of unsaturated double bonds in some rubber can make the rubber in a high elastic state, but its chemical activity makes the rubber products in the process of processing, storage and use, such as oxygen, ozone and other chemical substances in the air, as well as light, heat, radiation, mechanical Under the action of force and other factors, double bond breakage or crosslinking will occur, resulting in surface cracking, whitening, and mechanical performance degradation of rubber products. These phenomena are collectively referred to as "aging", and ozone is the main factor causing rubber aging. Rubber products, such as tires, undergo accelerated aging processes during dynamic use. As the aging process progresses, the performance of rubber and its products will grad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G73/36C10G73/40C08L7/00C08L23/22C08L91/06
CPCC08L7/00C08L23/22C08L91/06C08L2205/03C10G73/36C10G73/40
Inventor 孙剑锋姚春雷郭慧兵王士新赵威张志银
Owner CHINA PETROLEUM & CHEM CORP