Separation of tartaric and lactic acids by means of solvent extraction

Marinova, Mariya; Kyuchoukov, George; Albet, Joël; Molinier, J.; Malmary, Guy

doi:10.1016/s1383-5866(03)00218-1

Cited by 58 publications

(40 citation statements)

References 16 publications

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“…The enhancement with the solvent modification was clearly observed. In their consecutive study, the same researchers showed the positive effect of solvent modification on the selective separation of the carboxylic acids, using the same organic phase for the selective recovery of tartaric and lactic acids from their mixed acid solutions (32) and observed that tertiary amines in particular are positively influenced by solvent modification while reaching high K D values. amines were again found to be more positively affected by solvent modification than other extractants evaluated for reactive extraction (33).…”

Section: Introductionmentioning

confidence: 99%

Solvent modification effect on the physical and chemical extraction of acetic acid

Martı

2016

Separation Science and Technology

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Combined use of inert diluents with polar modifiers enables former to be utilized for the recovery of polar value-added chemicals. The results show that polarities of both solvent and modifier are critical for efficient separations. Thus, K D values with 1-octanol were higher than those with 1-decanol; while those with xylene were superior to those with hexane and toluene.Increasing amine concentrations increased the K D values, in contrast to the trends with pH and temperature. About 33%, 79% and 67% of acetic acid was recovered using 25% (v/v) Alamine 336 in xylene, 1-octanol and 30% 1-octanol-modified xylene, respectively.A c c e p t e d M a n u s c r i p t 2 Therefore, solvent modification positively affects the extraction power of inert diluents for acetic acid recovery.

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Section: Introductionmentioning

confidence: 99%

Solvent modification effect on the physical and chemical extraction of acetic acid

Martı

2016

Separation Science and Technology

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“…Marinova et al (2004) melakukan penelitian tentang pengambilan asam tartrat dari limbah industri anggur dengan menggunakan solven TOA, tributylphosphate (TBP) dan decanol, dodecane sebagai solven campuran pada berbagai perbandingan. Penelitian lain juga telah dilakukan seperti penentuan koefisien partisi dari ekstraksi asam sitrat, asam asetat, dan asam oksalat dengan menggunakan extracting power TOA dan berbagai solven yaitu toluene, methylisobutylketone, dan chloroform 1998a;1998b;Schunk et al, 2004); pemungutan kembali (recovery) asam tartrat dengan TOA dalam diluen biner (Yankov et al, 1999); kajian pengaruh asam-asam anorganik dan garam-garam natrium (Ingale and Mahajani, 1996); kajian pH (Tomovska et al, 1999;Choudhury et al, 1998;Hong, 2005).…”

Section: Pendahuluanunclassified

Ekstraksi Asam Sitrat Dan Asam Oksalat : Pengaruh Trioctylamine Sebagai Extracting Power Dalam Berbagai Solven Campuran Terhadap Koefisien Distribusi

Kasmiyatun¹,

Jos²

2008

Reaktor

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Generally, liquid waste of citric acid industry containing a highly citric acid, oxalic acid, due to precipitation process of calcium citrate less completely. Liquid-liquid extraction process is this one alternative that used to recover citric acid and oxalic acid, either in the product separation process from the fermentor or the treatment of its liquid waste. In order to understand, that the extraction process can be applied both technically and economically, it needs a more study the extraction parameters. The investigation has carried out about study of the extraction of citric acid and oxalic acid used trioctyl-amine as extracting power on various mix solvent and its ratio, related to the distribution coefficient. Extraction used a separating funnel that it was shaked with using an automatic shaker, which adjusted on specific velocity during 2.5 hours. The rafinate and extract were separated by separating funnel, then they were analyzed both concentration of citric acid and oxalic acid using a high performance liquid chromatography (HPLC). The results of the research show that the mixed solvent (consist of 15% trioctyl amine, 70% dodecane, and 15% hexanol), for the extraction of citric acid produce both the highest distribution coefficient and percentage of separation were 1.15 and 74.22%, respectively; and this were achieved for the ratio between the solvent and diluent of 2.5:1. For the extraction of oxalic acid similar result were obtained, and the value were 3.78 and 88.31%, respectively, for the ratio between solvent and diluent of 2:1.Limbah cair pabrik asam sitrat pada umumnya mengandung asam sitrat, asam oksalat, cukup tinggi akibat proses pengendapan calsium sitrat yang kurang sempurna. Proses ekstraksi cair-cair adalah salah satu alternatif yang dapat digunakan untuk pengambilan kembali asam sitrat dan asam oksalat, baik pada proses pemisahan produk yang keluar dari fermentor maupun pada proses pengolahan limbah cairnya. Untuk mengetahui apakah proses ekstraksi dapat diterapkan secara teknis, maka perlu dilakukan pengkajian lebih mendalam parameter-parameter ekstraksi. Pada penelitian ini telah dilakukan pengkajian tentang ekstraksi asam sitrat dan asam oksalat dengan menggunakan trioctylamine sebagai extracting power pada bermacam solven campuran dan pada berbagai perbandingan, hubungannya dengan koefisien distribusinya. Ekstraksi pada berbagai kondisi rancangan percobaan dilakukan pada corong pemisah, yang penggojokannya dilakukan dengan bantuan automatic shaker yang di set pada kecepatan tertentu selama 2,5 jam. Rafinat dan ekstrak dipisahkan selanjutnya dianalisis kadar asam sitrat maupun asam oksalat dengan menggunakan HPLC. Hasil penelitian menunjukkan bahwa solven campuran (yang terdiri dari 15% trioctylamine, 70% dodecane dan 15% hexanol) menghasilkan koefisien distribusi dan persentase pemisahan solute berturut-turut untuk asam sitrat 1,15 dan 74,22% pada perbandingan solven dan diluen 2,5:1; sedang untuk ekstraksi asam oksalat sebesar 3,78 dan 88,31% pada perbandingan solven dan diluen 2:1.

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“…19,20 However, little research has been devoted to extraction and separation of titanium(IV) from its H 2 SO 4 solutions in TOA.…”

Section: Introductionmentioning

confidence: 99%

The Separation and Concentration of Titanium(IV) from Sulfuric Acid Solution with Trioctylamine

Wang

Jiang

Fan

et al. 2012

Ind. Eng. Chem. Res.

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This paper presents research on separating and concentrating titanium(IV) from aqueous sulfuric acid solution, using trioctylamine (TOA) as extractant and kerosene as a diluent. We investigated the effects of reaction time, temperature, sulfuric acid concentration, organic/aqueous phase ratio, TOA concentration, and titanium concentration on the removal efficiency of titanium(IV). The results show that it is possible to recover over 99% of titanium(IV) after 15 min reaction time by TOA from the sulfuric acid solution under the optimum operation conditions and the loading capacity of TOA for titanium(IV) is 30 g Ti(IV)/100 g TOA. We expect that results studied would be applicable to separate and concentrate titanium from secondary sources such as red mud produced in the aluminum/alumina industry.

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Separation of tartaric and lactic acids by means of solvent extraction

Cited by 58 publications

References 16 publications

Solvent modification effect on the physical and chemical extraction of acetic acid

Solvent modification effect on the physical and chemical extraction of acetic acid

Ekstraksi Asam Sitrat Dan Asam Oksalat : Pengaruh Trioctylamine Sebagai Extracting Power Dalam Berbagai Solven Campuran Terhadap Koefisien Distribusi

The Separation and Concentration of Titanium(IV) from Sulfuric Acid Solution with Trioctylamine

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