US 12570541 B1Patent grantUnited States

Multiphase Sorbent for Basic Fuchsin Removal

Official patent title

Multiphase nanocomposite material production

Arabic title: إنتاج مادة نانو مركبة متعددة الأطوار

Invention

Problem

Organic dyes contaminate industrial water, while conventional adsorbents may have limited uptake or regeneration and nanomaterial synthesis can be costly, energy-intensive, or difficult to scale.

Why it matters

A reproducible multiphase adsorbent with measured dye uptake could support wastewater research, provided capacity, selectivity, regeneration, leaching, and real-effluent behavior are independently confirmed.

Approach

The process precipitates zinc, iron, silicon, and carbon precursors with NH4OH, washes and dries the gel, and calcines it to form a Zn2SiO4/ZnFe2O4/SiO2/C nanocomposite for basic-fuchsin adsorption.

Who may benefit

Potential beneficiaries include dye-effluent researchers, industrial-water laboratories, specialty adsorbent producers, textile-treatment developers, and multiphase inorganic-material manufacturers.

Potential value

The disclosure links three crystalline phases and carbon with defined micro- and nanoscale morphology, elemental composition, a calcination route, and patent-stated basic-fuchsin uptake.

Background

Dyes from textile and other industrial operations can persist in water and harm ecosystems. Adsorption is attractive because it can be operationally simple, but conventional materials may have low rates, limited capacity, or poor regeneration. Multiphase nanocomposites can combine surface chemistry and transport features, although dispersion, phase control, energy demand, and scale-up remain difficult. The publication describes a zinc-orthosilicate, zinc-ferrite, silica, and carbon material and states basic-fuchsin capacity, but the supplied evidence does not establish competitive-ion effects, isotherm conditions, regeneration, real-effluent performance, or zinc and iron leaching.

Technology overview

The material contains rhombohedral Zn2SiO4, cubic ZnFe2O4, hexagonal SiO2, and carbon. Spherical particles average 0.8–1.8 μm, irregular aggregates average 50–110 nm, and crystallites are 50–70 nm. Patent-stated basic-fuchsin adsorption capacity is at least 140 mg/g, with claims of at least 150 mg/g and 155 mg/g. Production uses NH4OH, zinc and ferric nitrates, and vinyltrimethoxysilane; the precipitate is dried at 100 °C and calcined at 600–800 °C for 1–5 hours.

Potential applications

Basic-fuchsin adsorption studies in aqueous systems.
Textile-dye wastewater treatment research.
Multiphase adsorbent structure-property optimization.
Candidate fixed-bed or batch sorbent development after validation.

Evidence-supported advantages

Three identified crystalline phases and carbon are integrated.
Microscale particles and nanoscale aggregate ranges are defined.
Patent-stated basic-fuchsin capacity reaches at least 140 mg/g.
A precipitation, washing, drying, and calcination route is described.

Development stage

Laboratory synthesis, morphology and phase characterization, and patent-stated basic-fuchsin capacity are described; independent performance replication, regeneration, leaching, real-water testing, scale-up, and commercial operation were not established.

Commercial opportunity

The material may interest textile-effluent and specialty-adsorbent developers, but one patent-stated dye capacity is insufficient for commercialization. Independent testing should verify pH and concentration dependence, kinetics, isotherms, selectivity, regeneration, breakthrough, real-effluent performance, zinc and iron leaching, synthesis yield, energy use, manufacturing consistency, and cost against established sorbents.

Patent classifications

WIPO IPC

C01G49/00Compounds containing metals not covered by subclasses C01D or C01F
B82Y30/00Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures

CPC

C01G49/0063Compounds containing metals not covered by subclasses C01D or C01F
B82Y30/00Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures
C01B33/113Non-metallic elements; compounds thereof
C01P2002/60Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2002/74Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2002/76Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2002/85Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/03Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/04Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/32Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/45Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/61Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/62Indexing scheme for structural and physical aspects of solid inorganic compounds
C01P2004/64Indexing scheme for structural and physical aspects of solid inorganic compounds

Inventors

First inventorBabiker Yagoub Elhadi Abdulkhair
InventorEhab Abdelhamed Abdelrahman Ahmed

Keywords

zinc orthosilicate
zinc ferrite
silicon dioxide
carbon nanocomposite
basic fuchsin
adsorption capacity
wastewater treatment
calcination

Patent document and drawings

The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.