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The method for preparing rubber protective wax

A rubber protective wax and wax layer technology, which is applied in petroleum wax refining, petroleum wax recovery, wax physical treatment, etc., can solve the problems of low production cycle, long preparation cycle, long production cycle, etc.

Active Publication Date: 2019-05-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prolonging the sweating time will lead to a long preparation cycle; increasing the sweating termination temperature will lead to a decrease in product yield
For the production of high melting point petroleum wax products with a melting point of about 70°C, even if the method of prolonging the sweating time and increasing the sweating termination temperature is adopted, the oil content on the wax in the later stage of sweating has nothing to do with the yield, that is, the oil content on the wax does not change with the yield. Therefore, the ordinary sweating process is not suitable for the production of high melting point petroleum wax with a melting point of about 70°C
[0016] Compared with solvent separation, the sweating separation process is intermittent operation, and the product yield is lower and the production cycle is longer, but the sweating process has the advantages of less investment, simple production process, low operating cost, safe production process, energy saving and no pollution to the environment and other advantages, there are still some manufacturers using this method to produce soap wax products
[0017] Over the years, the sweating method has been developed in terms of production equipment and technology, such as CN89214332 (vertical square multi-section sweating tank), CN94223980.6 (dish-type sweating device), CN98233254.8 (paraffin sweating tank), CN200920033500. X (new paraffin sweating tank), CN201210508905.0 (a high-efficiency paraffin sweating device), CN201320127680.4 (tubular paraffin deoiling device), etc., have made improvements in sweating production equipment; CN91206202 (a high-efficiency paraffin sweating tank ) has made improvements in the sweating process, but these methods still have the disadvantages of low product yield and long production cycle, and are still not effective in reducing the oil content of high melting point petroleum wax with a melting point of about 70 °C or changing its chemical composition. invalid

Method used

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  • The method for preparing rubber protective wax
  • The method for preparing rubber protective wax
  • The method for preparing rubber protective wax

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment includes: A sweating and B deployment.

[0054] A: sweating

[0055] This part includes: Aa soap wax for sweating, Ab low melting point paraffin wax and Ac high melting point paraffin wax for sweating.

[0056] Aa soap sweats with wax

[0057] This part includes: Aa1 preparation, Aa2 crystallization, Aa3 heating-constant temperature-heating-constant temperature sweating, Aa4 refining and other processes.

[0058] Aa1 Preparations

[0059] Put water under the sweating dish plate. Connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank and connect the vacuum pump at the lower part of the sweating dish; connect the jacket of the sweating dish and the movable coil with the circulation system, and fix the coil in the On the sweating dish; use water as the heat conduction medium, start the heating function of the circulation system, and heat the circulating water to 50°C.

...

Embodiment 2

[0103] This embodiment includes: A sweating and B deployment.

[0104] A: sweating

[0105] This part includes: Aa soap wax for sweating, Ab low melting point paraffin wax and Ac high melting point paraffin wax for sweating.

[0106] Aa soap sweats with wax

[0107] This part includes: Aa1 preparation, Aa2 crystallization, Aa3 heating-constant temperature-heating-constant temperature sweating, Aa4 refining and other processes.

[0108] Aa1 Preparations

[0109] Put water under the sweating dish plate. Connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank and connect the vacuum pump at the lower part of the sweating dish; connect the jacket of the sweating dish and the movable coil with the circulation system, and fix the coil in the On the sweating dish; use water as the heat conduction medium, start the heating function of the circulation system, and heat the circulating water to 50°C.

...

Embodiment 3

[0153] This embodiment includes: A sweating and B deployment.

[0154] A: sweating

[0155] This part includes: Aa soap wax for sweating, Ab low melting point paraffin wax and Ac high melting point paraffin wax for sweating.

[0156] Aa soap sweats with wax

[0157] This part includes: Aa1 preparation, Aa2 crystallization, Aa3 heating-constant temperature-heating-constant temperature sweating, Aa4 refining and other processes.

[0158] Aa1 Preparations

[0159] Put water under the sweating dish plate. Connect the sealing system of the sweating dish with the pressurized buffer tank and the compressor; install the decompression buffer tank and connect the vacuum pump at the lower part of the sweating dish; connect the jacket of the sweating dish and the movable coil with the circulation system, and fix the coil in the On the sweating dish; use water as the heat conduction medium, start the heating function of the circulation system, and heat the circulating water to 50°C.

...

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Abstract

The invention discloses a method for producing rubber protection wax. On the basis of the ordinary sweating process, airflows pass through a wax layer and carry away a liquid component in the sweating process so that a solid component and the liquid component are forcibly separated and gas produced from a decomposable substance dissolved in the raw material forms tiny bubbles in the wax layer and thus raw material components unsuitable for rubber protection wax are fast removed, and then the rubber protection wax product is prepared through adjusting carbon number distribution. The method has the advantages of low equipment investment, simple production process, low operation cost, safety, energy saving and no solvent pollution. The product can effectively protect rubber and its products for a long time.

Description

technical field [0001] The invention belongs to the technical field of special wax production, in particular to a method for preparing rubber protection wax. Background technique [0002] During the processing, storage and use of rubber and its products, double bonds are broken or cross-linked under the action of ozone and other factors, causing rubber products to have surface cracks, whitening, and mechanical performance degradation. These phenomena are collectively referred to as "aging". , with the progress of the aging process, the performance of rubber and its products will gradually decrease so that it will completely lose its use value. [0003] In order to prolong the storage period and service life of rubber and its products, it is necessary to add some substances that can inhibit the aging process to the rubber. These substances are called anti-aging agents. Rubber antioxidants are divided into chemical antioxidants and physical antioxidants. Rubber protective wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/40C10G73/36C10G73/42C08L7/00C08L23/22C08L91/06C08K13/02
CPCC08L7/00C08L23/22C08L2205/035C10G73/36C10G73/40C10G73/42C08L91/06C08K13/02
Inventor 孙剑锋王诗语张志银毕文卓郭慧兵袁平飞
Owner CHINA PETROLEUM & CHEM CORP
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