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BRANCH OF THE D.MENDELEEV UNIVERSITY OF CHEMICAL TECHNOLOGY OF RUSSIA in Tashkent

Achievement Through Knowledge and The History of an Invention

Achievement Through Science

🎖️ Pride of Our Scholars 

Usanbaev Najimuddin Khalmurzayevich

DSc · Professor
⚗️ Chemical Technology

Usanbaev Najimuddin Khalmurzayevich

Doctor of Technical Sciences (DSc), Professor

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Tashkent Branch of D. Mendeleev University of Chemical Technology: Professor at the Department of "Technology of Inorganic Substances".

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Institute of General and Inorganic Chemistry, AS RUz (IONC): Deputy Director for Scientific Affairs.

Biography and Career Milestones

N.Kh. Usanbaev was born in 1970 in the Shaykhantakhur district of Tashkent. In 1992, he graduated with distinction from the Tashkent Institute of Chemical Technology, embarking on independent scientific research in chemical technology.

2002–2008
Junior and Senior Research Fellow at the "Phosphorus Fertilizers" Laboratory, Institute of General and Inorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan (IONC AS RUz);
2008–2012
Assistant and Associate Professor at the Department of "Chemical Technology of Inorganic Substances", Tashkent Institute of Chemical Technology;
2012–2022
Senior and Chief Research Fellow at the "Phosphorus Fertilizers" Laboratory, Institute of General and Inorganic Chemistry;
2023–Present
Serving with distinction as Deputy Director for Scientific Affairs at the Institute of General and Inorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan.

IONC Scientific Team

📸 With the scientific team in front of the main building of the Institute of General and Inorganic Chemistry

Scientific Potential and Achievements

In 2008, N.Kh. Usanbaev successfully defended his candidate dissertation, and in 2018 earned his Doctor of Sciences (DSc) degree. His doctoral research entitled «Development of Technology for Producing Organo-Mineral Fertilizers and Ameliorants from Brown Coal of Uzbekistan» laid a solid scientific and technological foundation for the rational utilization of domestic raw resources, soil fertility enhancement, and the creation of environmentally safe organo-mineral fertilizer manufacturing technologies.

~200
Scientific Works Published
100+
Research Articles
3
Major Monographs
5 Nat. / 1 Int.
Invention Patents
h-index = 10
Scopus Database

The scholar's peer-reviewed papers are consistently published in prestigious domestic and international high-impact journals indexed in Scopus and Web of Science. Professor N.Kh. Usanbaev makes a monumental contribution to elevating the institute's research caliber, implementing joint innovation initiatives with industrial partners, and training high-caliber young research professionals.

Scientific Council Technology Presentation

📸 Presentation and discussion of innovative technology projects at the Institute's Scientific Council

The Story of an Invention

🌱 Practical Implementation 

Global Challenge and the Need for Solutions

Today, rapid global population growth, shrinking fertile arable lands, and depleting freshwater reserves make food security one of the most critical challenges facing humanity. A core objective of agriculture and the food processing industry is providing the population with safe, high-quality agricultural commodities. In this context, optimizing the manufacturing efficiency of mineral and organic fertilizers represents a paramount strategic priority.

Throughout the years of national independence, immense emphasis has been placed on delivering high-grade nitrogen, phosphorus, and potassium fertilizers, maximizing crop nutrient assimilation rates, and replenishing humus—the foundation of soil fertility. Restoring the physicochemical and land-reclamation integrity of saline and degraded soils required an integrated technological solution that seamlessly combines organic and inorganic raw materials.

Scientific Research Process

📸 Research activities and international scientific exchange

Research Pathway and Technological Discovery Stages

To solve this complex problem effectively, Professor N.Kh. Usanbaev and the research consortium completed four in-depth, targeted technological phases utilizing local mineral and organic resources:

01
Oxidant Identification

To produce coal optimally enriched with humic acids, the ideal oxidizing agent and thermodynamic oxidation parameters were systematically established.

02
Plant Growth Stimulants

An advanced extraction method was engineered to derive bioactive growth-promoting agents that stimulate seed germination and crop vigor via alkaline coal treatment.

03
Mechanochemical Activation

A compression-granulation technique was devised through the joint mechanochemical co-activation of Angren coal and Central Kyzylkum phosphorites with acid modification.

04
Complex Composition Synthesis

A synthesis process for new-generation complex fertilizers was successfully deployed by integrating oxidized coal with ammophos, suprephos, phosphogypsum, and bentonite.

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Officially Registered Invention: FAP 2429

Utility Model Patent of the Ministry of Justice of the Republic of Uzbekistan

№ FAP 2429 

Utility Model Patent FAP 2429
Official Patent Certificate Copy
Invention Title:
«METHOD FOR PRODUCING COMPLEX ORGANO-MINERAL FERTILIZER»
Patent Number:
№ FAP 2429 (Application: FAP 20230415)
Registration Dates:
Priority: 28.11.2023 • Registry: 01.03.2024
Patent Holder:
Institute of General and Inorganic Chemistry, Academy of Sciences of the Republic of Uzbekistan
Co-Authors:
Ganiyev P.Kh., Temirov U.Sh., Boynazarov B.R., Kurbanova A.D., Usanbaev N.Kh., Namazov Sh.S., Pirimov T.J.

🌱 Practical Significance: This patented invention enabled the deep industrial processing of local brown coal, Central Kyzylkum phosphorites, and phosphogypsum, laying the groundwork for the widespread agricultural deployment of new-generation organo-mineral fertilizers that actively combat soil salinization and dramatically boost crop yields.