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macroporous resin use to the adsorption of gold

Application of a macroporous resin containing imidazoline

Application of a macroporous resin containing imidazoline groups to preconcentration and separation of gold, platinum and palladium prior to ICP-AES determination The saturated adsorption capacities for Au(III), Pt(IV), Pd(II) and Ir(IV) in 2 M HCl were ⩾4.0, 1.57,

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Application of a macroporous resin containing imidazoline

Application of a macroporous resin containing imidazoline groups to preconcentration and separation of gold, platinum and palladium prior to ICP-AES determination. Su ZX(1), Pu QS, Luo XY, Chang XJ, Zhan GY, Ren FZ. Author information: (1)Department of Chemistry, Lanzhou University, Lanzhou, 730000, People's Republic of China.

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New macroporous polymers for the selective adsorption of

New macroporous polymers with a functional group based on triisobutylphosphine sulphide are synthesized and characterized for the selective adsorption of gold and palladium.

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New macroporous polymers for the selective adsorption of

Jan 15, 2000· New macroporous polymers with a functional group based on triisobutylphosphine sulphide are synthesized and characterized for the selective adsorption of gold and palladium. Five coordinating polymers are prepared from chloromethylated divinylbenzene polystyrene, by either direct attachement of the phosphine sulphide to the polymer or through a

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Efficient synthesis of camptothecin propargylamine

A novel macroporous adsorption resin-supported gold nanoparticle (MAR-AuNP) was first in situ prepared in water. The resulting MAR-AuNPs swell in water and were applied not only as an efficient adsorbent for hydrophobic CPT molecules, but also as a catalyst for the Mannich reaction of CPT, formaldehyde and amines with water as a solvent.

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Adsorption and Desorption Properties of Macroporous Resins

Adsorption of roselle anthocynins, a natural pigment, onto various macroporous resins was optimized to develop a simple and efficient process for industrial separation and purification of roselle anthocyanins. Nine different macroporous resins (AB-8, X-5, HPD-100, SP-207, XAD-4, LS-305A, DM-21, LS-610B, and LS-305) were evaluated for the adsorption properties of the anthocyanins extracted from

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Use of macroporous adsorption resin for simultaneous

Jul 30, 2007· Use of macroporous adsorption resin for simultaneous desalting and debittering of whey protein hydrolysates. Seronei C. Cheison. Southern Yangtze University, School of Food Science, Key Laboratory of Food Science and Safety, Ministry of Education, Box

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Adsorption/desorption characteristics and enrichment of

Abstract. In this study, the adsorption/desorption characteristics of quercetin, luteolin and apigenin from Flos populi extract (Populus tomentosa Carrière, Salicaceae) on twelve macroporous resins (NKA-9, HPD-600, HPD-826, HPD-750, HPD-400, DM-130, AB-8, SP-825, X-5, D-101, HPD-100, HPD-200) were evaluated. Both high adsorption and desorption capacities of quercetin, luteolin and apigenin

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Separation and Purification of Pyrroloquinoline Quinone

Oct 29, 2020· Among the three selected resins, the XAD-1600 resin was the best choice for PQQ absorption because it had the highest adsorption capacity (27.80±0.131 mg/g dry resin), desorption ratio (90.33±1.511%), and adsorption rate of the first stage (a constant k 3I).

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ACTIVATED CARBON IN GOLD RECOVERY Kemix

This article serves to discuss the fundamental aspects of gold recovery utilizing the Carbon-in-Pulp or Carbon-in-Leach processes. The purpose is to describe in simple terms what activated carbon is all about and how it adsorbs gold. The understanding of the mechanism of gold adsorption is important because the CIP/CIL processes work as

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Adsorption and Desorption Properties of Macroporous Resins

Adsorption of roselle anthocynins, a natural pigment, onto various macroporous resins was optimized to develop a simple and efficient process for industrial separation and purification of roselle anthocyanins. Nine different macroporous resins (AB-8, X-5, HPD-100, SP-207, XAD-4, LS-305A, DM-21, LS-610B, and LS-305) were evaluated for the adsorption properties of the anthocyanins extracted from

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Enhancing the adsorption property of macroporous XAD‐2

Oct 12, 2020· In this study, a nanosecond‐pulsed discharge plasma is employed to modify the macroporous XAD‐2 resin to improve the adsorption performance of polycyclic aromatic hydrocarbons. After modification, XAD‐2‐20 resin shows great advantage on naphthalene (Nap) adsorption, whose adsorption capacity increased by 80.6% and 43.5% compared with

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DL301-II Resin-specific adsorption of gold--Bengbu Dongli

Highest use temperature℃ OH- 100 Cl- 40 . Expansion rate (OHˉ→Clˉ)% ≤15-20% . Operational flow speed m/h . 10-30 . Desorption : Resin adsorption of gold thiourea with 9% + 3% sulfuric acid analysis, analytical dosage of 6-8 times the bed volume, contact time with Resin for 2h or more.

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Use of macroporous adsorption resin for simultaneous

Jul 30, 2007· Use of macroporous adsorption resin for simultaneous desalting and debittering of whey protein hydrolysates. Seronei C. Cheison. Southern Yangtze University, School of Food Science, Key Laboratory of Food Science and Safety, Ministry of Education, Box

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Synthesised phosphine sulphide-type macroporous polymers

A temperature increase from 25 to 60°C produces a significant increase in gold adsorption resulting in a higher separation factor from palladium. and macroporous resin containing imidazoline

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In-situ measurement of the adsorption thermodynamics of

A macroporous adsorption resin and rutin were selected as the model adsorbent and adsorbate. In-situ liquid phase adsorption measurement of the system was achieved through monitoring of the absorption by dipping the probe in a broad range of concentrations.

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Adsorption/desorption characteristics and enrichment of

Abstract. In this study, the adsorption/desorption characteristics of quercetin, luteolin and apigenin from Flos populi extract (Populus tomentosa Carrière, Salicaceae) on twelve macroporous resins (NKA-9, HPD-600, HPD-826, HPD-750, HPD-400, DM-130, AB-8, SP-825, X-5, D-101, HPD-100, HPD-200) were evaluated. Both high adsorption and desorption capacities of quercetin, luteolin and apigenin

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Recovery of gold from thiosulfate solutions and pulps with

With growing environmental and occupational safety concerns over the use of cyanide in gold processing, more acceptable alternatives are receiving increased interest. The most promising of the possible alternatives is thiosulfate. However, as activated carbon is not an effective substrate for the adsorption of the gold thiosulfate complex, the thiosulfate process lacks a proven in-pulp method

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Separation of Succinic Acid from Aqueous Solution by

Jan 28, 2016· Attempts were made to recover succinic acid from aqueous solution by macroporous resin adsorption. The adsorption properties of succinic acid on seven different resins (HPD-300, HPD-400, HPD-450, HPD-500, HPD-826, AB-8, and NKA-9) were compared systematically. According to the adsorption capacity, NKA-9 was chosen as the most suitable resin for succinic acid purification. The

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Preparative Separation of Glabridin from Glycyrrhiza

Dynamic adsorption and desorption experiments on HPD100 resin packed column were conducted to optimize the separation process of glabridin from licorice extracts. After the treatment with stepwise elution on HPD100 resin, the content of glabridin in the product increased from 0.21% to 32.2% which is 153-fold higher than it in G. glabra L. roots

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Macroporous Anion Exchange Resin Adsorbent Resin for

The specific surface of the cracked product can reach more than 800M ~ 2 / g, and the adsorption rate of creatinine and uric acid can reach more than 98%. QYX-7 Slightly yellow or white macroporous anionic resin with high specific surface area and good mechanical strength. Adsorption of total bilirubin in plasma > 2.0μmol / ml, adsorption rate

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AB-8 macroporous resin--Bengbu Dongli Chemical Co.,Ltd.

AB-8 macroporous resin . Product pictures: Use: For alkaloid extraction, organic extraction and separation of cephalosporins, Ivermectin, clindamycin phosphate has good adsorption. Specification standard: Indicator . Parameter . Implement stnadard: Q/DL022-2008. Appearance

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Combined Use of Deep Eutectic Solvents, Macroporous Resins

Deep eutectic solvents (DESs) were used in combination with macroporous resins to isolate and purify flavonoids and 20-hydroxyecdysone from Chenopodium quinoa Willd by preparative high-performance liquid chromatography (HPLC). The extraction performances of six DESs and the adsorption/desorption performances of five resins (AB-8, D101, HPD 400, HPD 600, and NKA-9) were investigated using the

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Separation and Purification of Two Flavone Glucuronides

The performance and adsorption characteristics of eight macroporous resins including AB-8, HPD100, HPD450, HPD600, D100, D101, D141 and D160 had been evaluated. The results confirmed that D141 resin was preferred choice, which offered the best adsorption and desorption capacities for the two glucuronides among the tested resins.

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