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Chemical adsorbent, application of chemical adsorbent in purification of tert-butanol co-produced through co-oxidation method and method

A technology of chemical adsorption and co-oxidation, applied in chemical instruments and methods, separation/purification of hydroxyl compounds, inorganic chemistry, etc., can solve problems affecting the use of downstream customers, yellowing of tert-butanol products, growth of platinum and cobalt color numbers, etc. problem, achieve optimal adsorption effect, long operation cycle, and solve the effect of acidity

Active Publication Date: 2018-12-11
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Azo substances enter TBA products, the color of TBA products gradually turns yellow during storage, and the color number of platinum and cobalt increases to 80 or even higher. TBA products contain acidic impurities, and the acid value reaches more than 0.08mgKOH / g, which seriously affects the downstream customer use
[0006] In order to solve the problems of yellowing and high acid value of tert-butanol products in the PO / TBA process, it is necessary to develop a method for purifying TBA products to improve the quality of TBA products and meet the needs of downstream customers

Method used

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  • Chemical adsorbent, application of chemical adsorbent in purification of tert-butanol co-produced through co-oxidation method and method
  • Chemical adsorbent, application of chemical adsorbent in purification of tert-butanol co-produced through co-oxidation method and method

Examples

Experimental program
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Effect test

preparation example 1

[0040] The coal slag of the gasification unit (its main component is SiO 2 48%, Al 2 o 3 36%, 8% iron oxide, 1.5% calcium oxide, 0.5% titanium oxide and 5.6% residual carbon. ), activated carbon powder, graphene, and NaOH powder are uniformly mixed in a mass ratio of 2.5:1:0.5:0.2, roasted at 800°C for 110min in a nitrogen atmosphere in a tube furnace, cleaned and soaked with 3% hydrochloric acid solution for 2h, and rinsed with water until Neutral, dry at 105°C for 3 hours to obtain the treated cinder-based activated carbon carrier.

[0041] The 2wt% ethanol solution of manganese acetate, palladium acetate, and citric acid is mixed according to the mass ratio of 2:0.4:2, and then add 60% of the activated carrier based on the total mass of the obtained mixture and the cinder-based active carrier, and soak at 60°C. Prepared for 72 hours, then dried at 85°C for 12 hours, and baked in a muffle furnace at 350°C for 2 hours. Obtain the manganese oxide chemical adsorbent 1 of ...

preparation example 2

[0043] The coal slag of the gasification unit (its main component is SiO 2 48%, Al 2 o 3 36%, 8% iron oxide, 1.5% calcium oxide, 0.5% titanium oxide and 5.6% residual carbon. ), activated carbon powder, graphene, and NaOH powder are uniformly mixed in a mass ratio of 2:0.5:0.4:0.1, roasted at 800°C for 90min in a nitrogen atmosphere in a tubular furnace, cleaned and soaked with 3% hydrochloric acid solution for 2h, and rinsed with water until Neutral, dry at 105°C for 3 hours to obtain the treated cinder-based activated carbon carrier.

[0044] The 2wt% ethanol solution of manganese acetate, palladium acetate and citric acid is mixed according to the ratio of 2:0.5:3, and then 60% of the activated carrier based on the total mass of the obtained mixture and the cinder-based active carrier is added, and soaked at 60°C 48h, then dried at 85°C for 12h, and baked in a muffle furnace at 350°C for 2h. Obtain the manganese oxide adsorbent 2 of described coal slag-based activated...

preparation example 3

[0046] The coal slag of the gasification unit (its main component is SiO 2 48%, Al 2 o 3 36%, 8% iron oxide, 1.5% calcium oxide, 0.5% titanium oxide and 5.6% residual carbon. ), activated carbon powder, graphene, and NaOH powder are uniformly mixed in a mass ratio of 2:1:0.5:0.2, roasted at 800°C for 90min in a nitrogen environment in a tube furnace, cleaned and soaked with 3% hydrochloric acid solution for 2h, and rinsed with water until Neutral, dry at 105°C for 3 hours to obtain the treated cinder-based activated carbon carrier.

[0047] The 2wt% ethanol solution of titanium acetate, platinum acetate, and citric acid is mixed according to the ratio of 1.8:0.5:3, and then 60% of the activated carrier based on the total mass of the obtained mixture and the cinder-based active carrier is added, and soaked at 60°C 48h, then dried at 85°C for 12h, and baked in a muffle furnace at 350°C for 2h. The cinder-based activated carbon-loaded nano-Pt modified titanium oxide adsorbe...

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Abstract

The invention discloses a chemical adsorbent, application of the chemical adsorbent in purification of tert-butanol co-produced through a co-oxidation method and a method. The chemical adsorbent is coal-cinder-based activated-carbon-supported nano-metal-manganese and / or titanium oxide and is used for purifying the crude tert-butanol which is co-produced through the co-oxidation method and containsacidic color development heavy components, so that the acid value and the color number of the tert-butanol are decreased, and the heavy components in the tert-butanol are reduced. The chemical adsorbent has the advantages of being high in reaction adsorption efficiency, simple in operation, low in energy consumption and capable of greatly improving the product quality of the tert-butanol.

Description

technical field [0001] The invention relates to a chemical adsorbent and its use and method for co-production of tert-butanol in a purification co-oxidation method, which belongs to the field of organic chemical industry. Background technique [0002] Tert-butanol is an important basic chemical raw material. It is mainly used as an intermediate in organic synthesis and as an alkylation raw material for the production of tert-butyl compounds. It can produce methyl methacrylate, tert-butylphenol, tert-butylamine, etc. For the synthesis of drugs, spices. At the same time, dehydration of tert-butanol can produce high-purity isobutene, which can be used as a solvent for industrial detergents, pharmaceutical extractants, insecticides and other solvents, and has a wide range of uses. [0003] There are two ways of industrial production of tert-butanol: (1) isobutene hydration method; (2) propylene and butane oxidation method. Among them, the propylene and butane co-oxidation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/02B01J20/28B01J20/30C07C31/12C07C29/76
CPCB01J20/0225B01J20/06C07C29/76B01J20/28066B01J20/3078B01J20/3204C07C31/12
Inventor 虞根海王亚辉叶建初王磊边潇潇张宏科华卫琦
Owner WANHUA CHEM GRP CO LTD
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