Multiphase Borate–Oxide Functional Material
Official patent title
CaB2O4/PbO/CuO/Pb3O4/PbB2O4/Pb4O(BO3)2 nanocomposite material and method of making
Arabic title: مادة نانو مركبة من CaB2O4/PbO/CuO/Pb3O4/PbB2O4/Pb4O(BO3)2 وطريقة تصنيعها
Invention
Invention
Problem
Integrating calcium borate, copper oxide, and several lead oxide or borate phases with controlled crystallinity and particle morphology is difficult using conventional processing.
Why it matters
A reproducible multiphase powder could support adsorption or catalyst research, but its high lead content demands rigorous exposure, leaching, recovery, and disposal controls.
Approach
A Pechini sol-gel process combines calcium, copper, and lead salts with boric acid, a chelating agent, and a polyol. Drying and calcination produce six identified crystalline oxide and borate phases in a particulate material.
Who may benefit
Potential beneficiaries include borate and oxide researchers, specialty ceramic producers, environmental-material laboratories, catalyst developers, and teams studying multiphase particulate synthesis.
Potential value
The route integrates six crystalline phases in one powder and specifies elemental composition, crystallite size, particle morphology, gel chemistry, and calcination windows.
Background
Background
Multicomponent oxides and borates may combine structural, catalytic, or adsorption behavior, but solid-state and hydrothermal methods can produce phase impurities or poorly controlled particles. The publication uses Pechini chemistry to integrate calcium borate, copper oxide, and four lead-containing phases. It proposes immobilizing inorganic contaminants in water. The supplied record supports synthesis and XRD, SEM, and EDX characterization, but it does not report immobilization capacity, selectivity, kinetics, lead or copper leaching, regeneration, long-term stability, or realistic-water performance.
Technology overview
Technology overview
An aqueous chelating-agent solution is added to calcium, copper, and lead salts plus boric acid, followed by a polyol to form a gel. Heating at 200–400 °C creates dry powder, and calcination at 500–800 °C forms CaB2O4, PbO, CuO, Pb3O4, PbB2O4, and Pb4O(BO3)2. XRD indicates 55–60 nm crystallites, while SEM describes a rough matrix with sharp-edged plates and granular particles. EDX provides elemental distribution.
Potential applications
Potential applications
- Candidate immobilization of inorganic water contaminants.
- Multiphase oxide and borate materials research.
- Specialty ceramic powder development.
- Candidate catalyst or adsorbent screening.
Evidence-supported advantages
Evidence-supported advantages
- One Pechini route integrates six crystalline phases.
- Elemental, crystallite, plate, and granular-particle ranges are specified.
- Chelating-agent and polyol alternatives are described.
- XRD, SEM, and EDX characterization are provided.
Development stage
Development stage
Laboratory synthesis with XRD, SEM, and EDX characterization is described; functional performance, leaching safety, scale-up, and commercialization were not established.
Commercial opportunity
Commercial opportunity
The powder may interest specialty-ceramic or immobilization-matrix developers, but commercialization requires independent functional testing, lead and copper leaching, worker-exposure controls, secure recovery or disposal, realistic-water studies, scale-up reproducibility, furnace economics, and regulatory assessment. No remediation performance or environmental safety is established by the supplied patent evidence.
Patent classifications
Patent classifications
WIPO IPC
- C01B13/32Non-metallic elements; compounds thereof
CPC
- C01B13/32Non-metallic elements; compounds thereof
- C01P2002/60Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2002/72Indexing 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
- C01P2004/30Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2004/51Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2004/61Indexing scheme for structural and physical aspects of solid inorganic compounds
Inventors
Inventors
- First inventorEhab Abdelhamed Abdelrahman Ahmed
- InventorFaisal Khuwayshan Lafi Algethami
Keywords
Keywords
- calcium borate
- lead oxide
- copper oxide
- lead borate
- nanocomposite
- Pechini sol-gel
- calcination
- contaminant immobilization
Patent document and drawings
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.