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Candlelight wax and preparation method thereof

A candle light, narrow fraction technology, applied in petroleum wax refining, candles, candle ingredients and other directions, can solve the problems of harsh production process operating conditions, potential safety hazards, complex processes, etc., and achieve rich product types, stable product performance, and simple process. Effect

Active Publication Date: 2021-04-09
INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) The traditional candle preparation method is prepared by fractionating petroleum components. Due to the complexity of the composition of petroleum itself, there are often problems in the preparation of candles, such as complex technology and environmental pollution during the burning process.
[0008] (2) Using Fischer-Tropsch synthesis refined wax and Fischer-Tropsch synthesis cracked wax composition to prepare candles, the cracked wax in it needs to undergo high-pressure hydrocracking operation, the production process operating conditions are harsh and there are potential safety hazards

Method used

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  • Candlelight wax and preparation method thereof

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Effect test

Embodiment 1

[0041] Fischer-Tropsch synthetic wax is hydrogenated to obtain Fischer-Tropsch refined wax, which can effectively remove olefins, oxygen-containing compounds, nitrogen, sulfur and other substances that affect product odor and color in Fischer-Tropsch synthetic wax. One method or a combination of several methods in the evaporator or vacuum rectification tower separates the effective components of candlelight wax at 300-520°C, and the separation fraction range width is between 10-100°C as required.

[0042] Take the treatment method of thin-film evaporator plus short-path evaporator as an example: the pressure of thin-film evaporator is controlled below 50Pa, the pressure of molecular short-path distillation is controlled below 10Pa, and the fractions shown in Table 1 are separated:

[0043] Table 1

[0044] Fraction (℃) ≤350 350-400 400-460 460-520 ≥520 Film temperature (°C) 170-180 Short-range temperature (℃) 145-160 175-190 225-240 ...

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Abstract

The invention relates to candlelight wax and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out catalytic hydrogenation on a Fischer-Tropsch synthesis product to obtain Fischer-Tropsch refined wax; (2) distilling the Fischer-Tropsch refined wax to separate out a plurality of narrow fractions with a distillation range of 300-520DEG C; and (3) preparing the candlelight wax by using one narrow fraction or a mixture of a plurality of narrow fractions. The method is simple in process, high in operation flexibility and rich in product variety.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to candle wax and a preparation method thereof. Background technique [0002] As a traditional wax material, paraffin occupies an important position in the history of candle manufacturing. However, with the improvement of consumers' awareness of environmental protection and health, paraffin-type candles have gradually exposed a series of problems. Firstly, as a by-product of petroleum refining, paraffin is non-renewable; secondly, black smoke will be produced during the burning of paraffin-type candles, which contains harmful substances such as polycyclic aromatic hydrocarbons, metal ions, and sulfur compounds, which seriously damage Human health; Moreover, if these harmful substances in paraffin are removed, the production process used is relatively complicated. The product of Fischer-Tropsch synthesis is a methylene polymer, which is a mixture of alkanes obt...

Claims

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Application Information

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IPC IPC(8): C10G73/42C11C5/00
CPCC10G73/42C11C5/002Y02W30/74
Inventor 李俊诚苗恒钱震周岩菅青娥马国清郑会月郭良兰王海国
Owner INNER MONGOLIA YITAI COAL BASED NEW MATERIALS RES INST CO LTD
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