Tert-butoxy ethyl dithiocarbonate and preparation method and application thereof

A technology of tert-butoxyethyl dithiocarbonate and tert-butoxyethanol, applied in chemical instruments and methods, chemical/physical/physical-chemical stationary reactors, feeding devices, etc. Sexual odor, environmental pollution of xanthate production plants and concentrators, etc., to achieve the effects of fast mixing, low production cost, and wide source of raw materials

Active Publication Date: 2019-01-18
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patented technical solution described in this patents allows for efficient collection and separation of valuable metallic compounds like cobalt (Co), mangium (Mn), zirconia(ZO2), tantalite (TaSQ4). By combining these chemical substances together into one molecule called Tetramostabililodecanesulfonate dimers, they become more stable when combined with another chemical that helps improve their performance compared to pure metal oxides alone. Additionally, there is an improved step involving removing residual organics from crude oil and sinter powder beforehand, resulting in cleaner final products containing fewer harmful components. Overall, this technology provides various benefits over existing methods including butadienesty, safety concerns associated with handling heavyweight explosives, and greenhouse effectiveness due to its potential role in producing fertile land alongside waste disposal.

Problems solved by technology

This patents describes different methods for producing specific types of chemicals such as naphthosilicate and lignin. These chemical substances can help separate metallic elements like gold and copper during their manufacture process. However, these traditional ways involve harmful solvents and waste materials generated when making certain valuable industrial processes. Therefore there needs an improved way to effectively capture these contgious components without causing negative effects towards the surrounding environments.

Method used

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  • Tert-butoxy ethyl dithiocarbonate and preparation method and application thereof
  • Tert-butoxy ethyl dithiocarbonate and preparation method and application thereof
  • Tert-butoxy ethyl dithiocarbonate and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0080] Add 31.05 parts of 2-tert-butoxyethanol and 15.50 parts of carbon disulfide into the reactor, divide it into 3 times under stirring, respectively add 3 parts, 3 parts, and 2.14 parts of granular sodium hydroxide into the reactor, add each time Stir for 10 to 20 minutes after completion, and control the reaction temperature during alkali addition to be lower than 35°C. After adding caustic alkali, stir and react at 30°C for 5 hours to obtain a yellow paste solid, which turns into a yellow block solid when cooled to room temperature. That is, the target collector product.

[0081] After analysis and detection, the collector product tert-butoxyethyl sodium dithiocarbonate has a content of 76.39%, and the yield of tert-butoxyethyl sodium dithiocarbonate based on sodium hydroxide is 96.26%.

[0082] The product is characterized after separation and purification by recrystallization, and the ultraviolet spectrum of tert-butoxyethyl sodium dithiocarbonate is as follows: figur...

Embodiment 2

[0091] Add 31.05 parts of 2-tert-butoxyethanol (containing 2-tert-butoxyethanol 92%, ethylene glycol 2%, 1,2-dibutoxyethane 6%) and 8.14 parts of granular sodium hydroxide to In the reactor, add 15.50 parts of carbon disulfide dropwise under stirring at 15-30°C. After the dropwise addition, keep the reaction temperature at 30°C, stir for 4 hours, and the reaction ends. A yellow paste solid is obtained, which turns into a yellow block solid when cooled to room temperature, which is the target collector product. After analysis and detection, the collector product tert-butoxyethyl sodium dithiocarbonate has a content of 75.79%, and the yield of sodium tert-butoxyethyl dithiocarbonate based on sodium hydroxide is 95.88%.

Embodiment 3

[0093]31.03 parts of 2-tert-butoxyethanol and 15.52 parts of carbon disulfide were added to the reactor, and they were divided into 3 times under stirring. In the container, stir for 10 to 20 minutes after each addition, and control the reaction temperature during alkali addition to be lower than 35°C. After adding caustic alkali, stir and react at 30°C for 3 hours to obtain a yellow paste solid, which is cooled to room temperature. It is a yellow blocky solid, which is the target collector product. After analysis and detection, the content of the collector product tert-butoxyethyl potassium dithiocarbonate is 79.14%, and the yield of tert-butoxyethyl potassium dithiocarbonate based on potassium hydroxide is 97.02%.

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Abstract

The invention discloses tert-butoxy ethyl dithiocarbonate and a preparation method and application thereof, wherein the preparation method comprises the following steps of: using 2-tert-butoxy ethanol, carbon disulfide and caustic alkali as raw materials, reacting for 0.5-6 hours at a reaction temperature of 0-70 DEG C to generate the tert-butoxy ethyl dithiocarbonate; the preparation method has the advantages of wide raw material source, low cost, simple operation, no waste water generation, high product yield and easy achievement of industrial production. As a collecting agent, the tert-butoxy ethyl dithiocarbonate has stronger collecitng capacity and selectivity for sulfide minerals such as copper sulfide, lead-zinc mineral, nickel sulfide mineral, copper molybdenum mineral and the like.

Description

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Claims

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Application Information

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Owner CENT SOUTH UNIV
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