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Application of trialkyl naphthalene sulfonic acid, synergistic extraction agent containing trialkyl naphthalene sulfonic acid, as well as preparation and application thereof

A technology of alkyl naphthalene sulfonic acid and dialkyl naphthalene sulfonic acid is applied in the field of extractant for metal extraction, which can solve the problems of slow extraction phase separation rate, etc. Effect of Clarification Rate

Active Publication Date: 2018-07-13
WIDE WATER TREATMENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing dialkylnaphthalenesulfonic acid and pyridine carboxylate synergistic extractant extract phase separation rate is slow, the first purpose of the present invention is to provide a kind of application method of trialkylnaphthalenesulfonic acid, aiming at through The addition of trialkylnaphthalene sulfonic acid achieves the purpose of improving the extraction and clarification rate

Method used

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  • Application of trialkyl naphthalene sulfonic acid, synergistic extraction agent containing trialkyl naphthalene sulfonic acid, as well as preparation and application thereof
  • Application of trialkyl naphthalene sulfonic acid, synergistic extraction agent containing trialkyl naphthalene sulfonic acid, as well as preparation and application thereof
  • Application of trialkyl naphthalene sulfonic acid, synergistic extraction agent containing trialkyl naphthalene sulfonic acid, as well as preparation and application thereof

Examples

Experimental program
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Effect test

Synthetic example

[0062] Synthetic example (long carbon chain trialkyl naphthalene sulfonic acid synthetic embodiment):

[0063] Taking the synthesis of alkyl dinonyl naphthalene sulfonic acid as a typical long carbon chain trialkyl naphthalene sulfonic acid as an example, under the protection of dry high-purity nitrogen, 5g (0.037mol) aluminum trichloride solid catalyst was added to 100g nitric acid Benzene solvent, stirred at 20°C for 0.5h, fully dissolved and added 99g (0.26mol) of dinonylnaphthalene (the substitution position of the nonyl group is not required), slowly added 0.275mol long Carbon chain brominated alkanes or alkenes (raw materials described in Table 1), then continue to stir the reaction for 1h, add 14.6g cold water to quench after the end of the reaction, then leave to separate layers, and the upper organic phase is washed with an equal volume of 10% NaOH aqueous solution Three times, and then washed with deionized water until neutral, and then the washed organic phase was d...

Embodiment 1

[0092] Taking trinonylnaphthalenesulfonic acid as a typical long carbon chain trialkylnaphthalenesulfonic acid as an example, add trinonylnaphthalenesulfonic acid to dinonylnaphthalenesulfonic acid / 4-pyridinecarboxylate isooctyl synergistic extractant, When its addition is 40% (mol percent) of the total amount of sulfonic acid groups in the organic phase, investigate the extraction effect of the simultaneous direct extraction of nickel and cobalt in the acidic polymetallic solution by the extraction temperature, the extraction clarification rate, the amount of solubilized water in the loaded organic phase and the effect of reverse micelle morphology.

[0093] Get the trinonylnaphthalenesulfonic acid synthesized in 10.2g synthetic examples (the product that 1-C case in table 1 obtains, wherein trinonylnaphthalenesulfonic acid 0.012mol, dinonylnaphthalenesulfonic acid 0.006mol), add 5.5g Dinonylnaphthalenesulfonic acid (0.012mol) and 14.1g isooctyl 4-pyridinecarboxylate (0.06mol...

Embodiment 2

[0102] Taking trinonylnaphthalenesulfonic acid as an example, add long carbon chain trialkylnaphthalenesulfonic acid to dinonylnaphthalenesulfonic acid / 4-pyridinecarboxylate isooctyl synergistic extractant, and its addition amount is the sulfonic acid in the organic phase When the total amount of groups is 40% (mole percent), the influence of concentration of extractant on simultaneous direct extraction of nickel and cobalt in acidic multi-metal solution, extraction clarification rate, loading organic phase solubilizing water and reverse micelle morphology was investigated.

[0103] Get the synthetic trinonylnaphthalenesulfonic acid (the product that the 1-C case in table 1 obtains in the 51g synthesis example, wherein trinonylnaphthalenesulfonic acid 0.06mol, dinonylnaphthalenesulfonic acid 0.03mol), add 27.5g dinonylnaphthalenesulfonic acid Nonyl naphthalene sulfonic acid (0.06mol) and 60.5g 4-pyridinecarboxylate (0.06mol), are configured into the mol ratio 1 of ester group i...

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Abstract

The invention belongs to the field of non-ferrous metal wet metallurgy, and particularly provides an application method of trialkyl naphthalene sulfonic acid. The trialkyl naphthalene sulfonic acid isadded into dialkyl naphthalene sulfonic acid and pyridine carboxylic acid so as to accelerate an extraction and phase separation speed. In addition, the invention further discloses a synergistic extraction agent containing the trialkyl naphthalene sulfonic acid. The synergistic extraction agent is prepared from the trialkyl naphthalene sulfonic acid, the dialkyl naphthalene sulfonic acid and thepyridine carboxylic acid. The invention further comprises preparation of the synergistic extraction agent, and application of the synergistic extraction agent in directly extracting nickel-cobalt froma multi-metal acid solution containing Ni2+, Co2+, Fe3+, Ca2+, Mg2+ and the like at the same time. The long-carbon-chain trialkyl naphthalene sulfonic acid is added into the synergistic extraction agent containing the dialkyl naphthalene sulfonic acid and pyridine carboxylic acid, so that the extraction and phase separation speed of the extraction agent can be remarkably improved, the extractionand clarification speed meets the requirement on an industrial design of a mixer-settler, the extraction rate of the nickel-cobalt directly extracted from the multi-metal acid solution containing Ni2+, Co2+, Fe3+, Ca2+, Mg2+ and the like at the same time cannot be influenced, and a removal effect on impurities such as Fe3+, Ca2+, Mg2+ cannot be influenced.

Description

technical field [0001] The invention belongs to the field of nonferrous metal hydrometallurgy, and in particular relates to an extractant for metal extraction. Background technique [0002] With the depletion of high-grade nickel sulfide ore resources, low-grade laterite nickel ore and secondary resources containing nickel and cobalt (such as spent nickel and cobalt catalysts containing iron, calcium and magnesium impurities, etc.) will become important resources of nickel and cobalt in the world. For the extraction of nickel and cobalt from low-grade lateritic nickel ores and secondary resources containing nickel and cobalt, the lengthy hydrometallurgical extraction process of "leaching-removing iron and aluminum-nickel-cobalt precipitation-acid leaching-nickel-cobalt separation" is usually adopted. The process of extracting nickel and cobalt has become an important method for short-process, clean and efficient extraction of nickel and cobalt from acid leaching solution, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B23/00C22B3/40
CPCC22B23/0453C22B3/406Y02P10/20
Inventor 胡慧萍王永茜罗雨晴彭奇凡彭全凡
Owner WIDE WATER TREATMENT TECH CO LTD
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