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Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors

A technology of hydroformylation and collectors, applied in solid separation, flotation, etc., can solve the problems of groundwater pollution, coal minerals fully hydrophobic, poor dispersibility, etc.

Pending Publication Date: 2021-10-19
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These substances are also highly toxic and pose a problem of ground water contamination
[0007] Diesel or similar kerosene-based collectors have poor dispersion in the slurry and do not adequately hydrophobize all coal minerals

Method used

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  • Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors
  • Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors
  • Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0170] 1. A method of enriching at least one material, said method comprising the steps of:

[0171] a) providing a slurry comprising said at least one material dispersed in a liquid,

[0172] b) contacting said slurry with a collector composition,

[0173] c) recovering the enriched material,

[0174] Wherein the collector composition comprises a mixture of collector A and collector B; wherein collector A is a by-product obtained through hydroformylation of octene isomers, and collector B is selected from diesel oil , kerosene and C 8 -C 20 olefins.

[0175] 2. The process according to embodiment 1, wherein the by-product obtained by hydroformylation of octene isomers comprises at least one isomer selected from the group consisting of dinonyl ether isomers, nonyl ester isomers and A compound of isomers of trinonyl ester and trinonyl ether.

[0176] 3. The method according to embodiment 1 or embodiment 2, wherein the by-products obtained by hydroformylation of octene iso...

Embodiment 1

[0214] Coal slurry samples were floated in the laboratory using a Denver flotation machine. A test was designed to determine the utility of a collector mixture comprising Collector A and Collector B.

[0215] sample

[0216] Sample 1 and Sample 2 are thermal coal samples from Australia.

[0217] Device Operation Data

[0218] ·The flotation flow of each module is 2225m 3 / h

[0219] The solids concentration in the flotation feed varies from 6% m / m to 12% m / m, with a nominal value of 8% m / m

[0220] The type of cell used is a mechanically stirred flotation cell

[0221] ·Do not wash with water

[0222] ·Collector dosage rate is 100L / h per module

[0223] Flotation test conditions

[0224] Tank used = 4L Denver tank

[0225] Air velocity = 4L / min

[0226] Sample mixing time = 1 minute

[0227] Collector conditioning time = 2 minutes

[0228] Sample collection time = 3 minutes

[0229] Blowing agent dose of sample 1 = 7ppm

[0230] Blowing agent dosage for samples 2...

Embodiment 2

[0250] Sample: Oxidized Coal

[0251] The test conditions are:

[0252] Foaming agent—10ppm

[0253] Collector—0.13g / kg

[0254] Washing water—4L / min

[0255] Air dose rate—50L min

[0256] The tests were carried out in laboratory column flotation cells (microcells) of 190mm diameter.

[0257] The harvest time for each concentrate is 5 minutes.

[0258] Foaming agent used:

[0259] · FF 1908

[0260] Collectors used:

[0261] ·diesel fuel

[0262] • A composition comprising Collectors A and B (Collector C). The composition is a 1:1 mixture of by-products obtained from the hydroformylation of octene isomers and Exxsol D80. Exxsol D80 is characterized as a "dearomatized" aliphatic hydrocarbon solvent. The main components are normal paraffins, isoparaffins and naphthenes.

[0263] Table 5. Use in Laboratory Column Tanks Flotation test with FF 1908 and diesel

[0264]

[0265] Table 6. Use in Laboratory Column Tanks Flotation test with FF 1908 and collector C...

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Abstract

The presently claimed invention relates to a process for the beneficiation of coal and other hydrophobic materials, wherein a collector composition comprising by-products obtained by hydroformylation of octene isomers as a first component and diesel, kerosene and / or C8-C20 olefins as a second component is used.

Description

[0001] field of invention [0002] The present invention relates to a method of enriching coal and other hydrophobic materials using a collector composition comprising, as a first component, by-products and as a second component diesel, kerosene and / or C 8 -C 20 olefins. [0003] Background of the invention [0004] When coal is mined, the primary product consists of coal and rock, where rock occurs naturally as small particles of coal that are unavoidable in the mining process. To concentrate coal, large fragments of non-combustible minerals / materials are removed by screening or gravity separation techniques. Froth flotation is usually used to enrich finely divided raw coal. Certain coals, such as bituminous coal, are naturally hydrophobic, which results in the coal being naturally buoyant in aqueous media, but the use of reagents is still often required to increase floatability and thus recovery. Efficient preparation of coal prior to combustion improves the uniformity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/006B03D1/008B03D1/004
CPCB03D2203/08B03D2203/06B03D2201/02B03D1/008B03D1/006B03D1/0043
Inventor S·迪奇白仟A·M·维拉努埃瓦布林多格A·米哈伊洛夫斯基
Owner BASF SE