An investigation on the production of sodium metaborate dihydrate from ulexite by using trona and lime

Sert, Hakan; Yildiran, Hüseyin; Toscali, Duygu

doi:10.1016/j.ijhydene.2012.01.012

Cited by 18 publications

(6 citation statements)

References 21 publications

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“…Although there are more than 200 boron compounds in nature, only a few of them have the opportunity to be used commercially and industrially [4]. In terms of the amount of reserves in Türkiye, tincal (Na 2 O 2 B 2 O 3 10H 2 O), colemanite (Ca 2 B 6 O 11 5H 2 O) and ulexite (Na 2 O 2 CaO 5 B 2 O 3 16H 2 O) minerals are widely found [5][6][7]. Although boron is a nonmetal in group IIIA, it sometimes shows metallic properties [8].…”

Section: Introductionmentioning

confidence: 99%

Dissolution behavior and kinetic investigation of 〖Ca〗^(2+) in the dissolution of colemanite in propionic acid presence saturated with synthetic flue gas

Uğur

2024

Journal of Boron

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Colemanite (〖2CaO.3B〗_2 O_3.5H_2 O) is a calcium borate mineral and can be expressed as the primary material of industrial production of boric acid. Boric acid is one of the most essential raw materials obtained by solving colemanite ore in acidic solutions and gases. The dissolution behavior and kinetics of 〖Ca〗^(2+) in a solution of colemanite in a propionic acid solution saturated with synthetic flue gas were examined. In this context; the effects of particle size, reaction temperature, acid concentration, solid-liquid ratio and synthetic flue gas flow rate parameters were investigated. According to the experimental data, it was observed that the amount of 〖Ca〗^(2+) passing to the solution increased with the increase of the reaction temperature, acid concentration and gas flow rate, and with the decrease in solid-liquid ratio and grain size. Experimental results were analyzed by homogeneous and heterogeneous models using the Statistica package program, and it was determined that the dissolution of 〖Ca〗^(2+) in solution complies with the “Avrami” model. The activation energy (E) was found as 〖26.83 kJ.mol〗^(-1) and the Arrhenius constant (A) was found as 〖8.9*10〗^3.

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Section: Introductionmentioning

confidence: 99%

Dissolution behavior and kinetic investigation of 〖Ca〗^(2+) in the dissolution of colemanite in propionic acid presence saturated with synthetic flue gas

Uğur

2024

Journal of Boron

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“…200'den fazla farklı bor minerali doğada bulunmasına rağmen çok az bir kısmı sanayide kullanılmaktadır [2]. Borat grubuna ait bu mineraller içinde tinkalkonit, kernit, propertit, szaybelit, tinkal (boraks), üleksit, kolemanit gibi mineraller ticari ve endüstriyel değere sahiptir [3][4][5]. Bu minerallerden çeşitli yöntemler kullanılarak nükleer, endüstri, kozmetik, deterjan, tarım, deri gibi sanayi alanlarında kullanımı önem arz eden bor bileşikleri elde edilmektedir.…”

Section: Giriş (Introduction)unclassified

Investigation of Kinetic Mechanism of Colemanite in Sodiumbisulfate Solution

Şimşek¹,

Yeşilyurt²

2021

Journal of Boron

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Bu çalışmada kolemanitin sodyum bisülfat çözeltisi içerisindeki çözünme kinetiğine; katı/sıvı oranı, sodyum bisülfat (NaHSO 4 ) konsantrasyonu, tane boyutu, karıştırma hızı ve reaksiyon sıcaklığı parametrelerinin etkisi incelenmiştir. Deneysel sonuçlara göre, kolemanitin çözünürlüğünün sıcaklığın ve konsantrasyonun artması ile arttığı, tane boyutunun ve katı/sıvı oranının artması ile azaldığı tespit edilmiştir. Karıştırma hızının çözünme kinetiği üzerine etkisi, 350 devir.dakika -1 değerine kadar olumlu, yaklaşık 350 devir.dakika -1 'den sonraki değerlerde ise olumsuz olduğu bulunmuştur. Deneysel veriler sabit boyutlu parçacıklar için reaksiyona girmemiş çekirdek modeline göre analiz edilmiştir. Çözünmenin kül filminden iki aşamalı difüzyon kontrollü olduğu bulunmuştur. Aktivasyon enerjileri bir ve ikinci aşamalarda sırasıyla 3,4 ve 6,1 kJ.mol -1 olarak bulunmuştur.

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“…Ulexite mineral has a very wide area which is used now and is considered for future use. These include the fabrication of glass, porcelain, leather, cosmetics and photographic chemicals, detergent materials, polymer, catalysts, steel, refractory materials, fertilizers, disinfectant, food preservative, textiles, nuclear fiberglass, insulators (Demirkiran, Bayrakçi, & Asin, 2013;Ipek & Sahan, 2013), hydrogen energy (NaBH 4 ) (Sert, Yildiran, & Toscal, 2012), superconducting material (MgB 2 ) (Vignolo et al, 2014), shielding material (Demir & Un, 2013), ultra-high temperature ceramic material (ZrB 2 ) (Guo, Hu, & Kagawa, 2011), asphalt concrete (Kutuk-Sert & Kutuk, 2013), cement concrete (Kutuk-Sert, 2016) and brick (Emrullahoglu Abi, 2014).…”

Section: Introductionmentioning

confidence: 99%

Particle Size Distribution of Nanoscale Ulexite Mineral Prepared by Ball Milling

Kutuk

Sert

2017

mijst

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An investigation on the production of sodium metaborate dihydrate from ulexite by using trona and lime

Cited by 18 publications

References 21 publications

Dissolution behavior and kinetic investigation of 〖Ca〗^(2+) in the dissolution of colemanite in propionic acid presence saturated with synthetic flue gas

Dissolution behavior and kinetic investigation of 〖Ca〗^(2+) in the dissolution of colemanite in propionic acid presence saturated with synthetic flue gas

Investigation of Kinetic Mechanism of Colemanite in Sodiumbisulfate Solution

Particle Size Distribution of Nanoscale Ulexite Mineral Prepared by Ball Milling

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