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A kind of process for preparing oxidized paraffin

A process method, the technology of oxidizing paraffin, applied in the direction of petrochemical modification, etc., can solve the problems such as not easy to remove, unsatisfactory catalyst regeneration effect, and poor catalytic activity, so as to improve the catalyst selectivity and improve the target product The effect of improving the yield and contact efficiency

Active Publication Date: 2016-02-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Before the 1980s, the catalysts used for paraffin oxidation mainly used high-priced transition metal soap mixtures with air to produce fatty acids, but the catalyst regeneration effect was not ideal, and these catalysts would form some by-products and metal residues, and it was not easy to remove from product
In order to immobilize it, people have tried to load it on zeolite molecular sieves. However, due to the limitation of the pore diameter of the latter, these immobilized complexes did not play their due catalytic activity well.

Method used

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  • A kind of process for preparing oxidized paraffin
  • A kind of process for preparing oxidized paraffin

Examples

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Embodiment 1

[0021] This embodiment adopts raw material 1, and the HCl aqueous solution that contains 70mL / L in the air used, specific reaction condition and product property are shown in Table 2. .

Embodiment 2

[0023] Adopt raw material 2, the HCl aqueous solution that contains 90mL / L in the air used, specific reaction conditions and product properties are shown in Table 2.

Embodiment 3

[0025] Same as Example 1, the air used contains 70mL / L of HCl aqueous solution, the difference is that the reaction conditions are different, and the specific reaction conditions are shown in Table 2.

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Abstract

The invention relates to a preparation process for oxidized paraffin. The process is characterized by comprising the following contents: a rotating bed reactor is used as a reaction device; the rotating bed is composed of a corrosion-resistant frame and a bed; the bed is composed of a catalyst filler; liquid paraffin is used as a raw material and subjected to oxidation reaction in the presence of air; a catalyst is cobalt naphthenate which is loaded on modified active carbon; and the air contains an aqueous solution HC1 with a concentration of 50 to 150 ml / L. Compared with the prior art, the preparation process for the oxidized paraffin provided by the invention has the advantages of capacity of realizing continuous production, low reaction temperature, high reaction activity and high yield of target products.

Description

technical field [0001] The invention relates to a preparation method of oxidized paraffin, which belongs to the technical field of wax oxidation technology. Background technique [0002] In recent years, with the demand for special waxes in all walks of life, chemical modification of paraffin waxes by oxidation methods to obtain modified waxes with higher added value has received widespread attention. Because paraffin wax has many excellent properties such as good emulsification, pigment dispersion, lubricity, oil solubility, glazing, etc. after oxidation, it also improves the flexibility of raw wax, so oxidized paraffin wax is used in synthetic biodegradable materials, textiles, Metal processing, thermoplastic resins, ceramics, lubricating oils, inks, metal surface treatment, ore flotation, automotive glazing, coatings, explosives, molding, leather, etc. have been widely used. [0003] Before the 1980s, the catalysts used for paraffin oxidation mainly used high-priced tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/38
CPCC10G73/38
Inventor 张志银全辉姚春雷孙国权林振发赵威
Owner CHINA PETROLEUM & CHEM CORP
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