Method for producing soap wax and low melting point paraffin

A production method and low-melting-point technology, applied in petroleum wax recovery, petroleum wax refining, wax physical treatment, etc., can solve the problems of long production cycle and low product yield, and achieve low operating cost, low investment, and accelerated separation speed Effect

Active Publication Date: 2019-05-21
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

[0041] This embodiment includes: A: emulsification and B: sweating.

[0042] A: emulsification

[0043] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0044] (A1) Oil phase material preparation

[0045] Take Daqing crude oil Changsixian wax paste (melting point 41.5°C, oil content 13.2%) 80.0Kg, heat to 80°C and melt, add 1.5Kg of diethylene glycol monolaurate and 0.5Kg of sorbitan monolaurate, and triacetamide oleate 1.0 Kg, stir well.

[0046] (A2) Preparation of aqueous phase materials

[0047] 17.0 Kg of water was heated to 90°C.

[0048] (A3) Emulsion preparation

[0049] Stir the oil phase material at a speed of 500r / min, slowly add the water phase material prepared in (A2) to the oil phase material prepared in (A1), and continue stirring for 30min to form a water-in-oil emulsion.

[0050] B: sweating

[0051] This part includes four steps of (B1) preparation, (B2) crystalliza...

Embodiment 2

[0063] This embodiment includes: A: emulsification and B: sweating.

[0064] A: emulsification

[0065] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0066] (A1) Oil phase material preparation

[0067] Take 80.0Kg of Daqing crude oil Changsixian wax paste (the properties are the same as in Example 1), heat to 80°C and melt, add 1.5Kg of sorbitan monostearate and 0.5Kg of lauryl betaine, and stir evenly.

[0068] (A2) Preparation of aqueous phase materials

[0069] 2.0 Kg of NaCl was dissolved in 16.0 Kg of water and heated to 90°C.

[0070] (A3) Emulsion preparation

[0071] Stir the oil phase material at a speed of 1000r / min, slowly add the water phase material prepared in (A2) to the oil phase material prepared in (A1), and continue stirring for 30min to form a water-in-oil emulsion.

[0072] B: sweating

[0073] With embodiment 1.

[0074] Properties of the target product (II) p...

Embodiment 3

[0076] This embodiment includes: A: emulsification and B: sweating.

[0077] A: emulsification

[0078] This part includes (A1) oil phase material preparation, (A2) water phase material preparation, (A3) emulsion preparation three steps.

[0079] (A1) Oil phase material preparation

[0080]Take 80.0Kg of Daqing crude oil minus second-line wax paste (melting point 50.6°C, oil content 21.4%), heat to 90°C and melt, add 2.0Kg of diethylene glycol fatty acid ester and 1.0Kg of triacetamide oleate, and stir evenly;

[0081] (A2) Preparation of aqueous phase materials

[0082] 2.0Kg of Na 2 SO 4 Dissolve in 15.0Kg of water and heat to 90°C.

[0083] (A3) Emulsion preparation

[0084] Stir the oil phase at a speed of 300r / min, slowly add the water phase material prepared in (A2) to the oil phase material prepared in (A1), and continue stirring for 20 min to form a water-in-oil emulsion.

[0085] B: sweating

[0086] This part includes four steps of (B1) preparation, (B2) crys...

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Abstract

The invention discloses a method for producing soap wax and low melting point paraffin. On the basis of the ordinary sweating and deoiling 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 preferably, the raw material and water or a salt solution are emulsified so that a desired product yield is improved and a production period is shortened. The method has the advantages of low equipment investment, simple production process, low operation cost, safety, energy saving and no solvent pollution.

Description

technical field [0001] The invention belongs to the technical field of petroleum wax production, in particular to a production method of soap wax and low-melting paraffin wax. Background technique [0002] Petroleum wax is a general term for various wax products obtained from waxy distillates after crude oil is refined and processed, including liquid paraffin, soap wax, paraffin wax and microcrystalline wax. Soap wax and paraffin are produced by dewaxing, deoiling, refining and molding of lubricating oil fractions in crude oil, and generally contain C 20 ~C 50 Generally, the melting point of soap wax is between 40°C and 52°C, and the melting point of paraffin wax is between 50°C and 74°C. [0003] Dewaxing is a process in which lubricating oil fractions are used as raw materials to prepare wax paste with an oil content of about 10-30%. The dewaxing process mainly includes press dewaxing and solvent dewaxing. Deoiling is the process of preparing crude paraffin with an oil ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/36C10G73/40C10G73/42C10G73/38
CPCC10G73/36C10G73/38C10G73/40C10G73/42
Inventor 孙剑锋解利辉毕文卓张志银郭慧兵陈保莲
Owner CHINA PETROLEUM & CHEM CORP
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