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Phosphoric Ores and Materials for Mineral Fertilizers

#KR-1380


Regional-Genetic Conditions of Phosphoric Ore Formations and Effective Mineral Matter for Agro-Resources Creation in Kyrgyz Republic

Tech Area / Field

  • OBS-NAT/Natural Resources and Earth Sciences/Other Basic Sciences
  • AGR-OTH/Other/Agriculture

Status
3 Approved without Funding

Registration date
12.12.2005

Leading Institute
Social Foundation "Agrotechnologiya", Kyrgyzstan, Osh

Supporting institutes

  • Southern Kyrgyz Geological Expedition, Kyrgyzstan, Osh

Collaborators

  • Lawrence Livermore National Laboratory, USA, CA, Livermore

Project summary

Project aim. Provision of safe raw materials in mineral fertilizers in the Kyrgyz Republic.

The absence of a domestic production base for mineral fertilizers, leading to full import dependence and a progressive price increase for mineral fertilizers puts agro-production within the Kyrgyz Republic in a precarious situation. The consumption of mineral fertilizers in planning volume by 2010 year is estimated to be 320 thousand tons, in total cost more than 2.8 billion Kyrgyz som. Import of mineral fertilizers and pesticides comes to 102,000 tons or 31.9 % of consumption a year. Closely connected with this situation are the high market costs for raw materials-- 1 ton ammonia niter – $120, ammophos - $203, potassium chloride - $130. Many of these products are of questionable quality. Thus, in order to avoid importing fertilizers, there must be search for a domestic search for sources of mineral raw materials for fertilizers production that, in turn, will contribute to Kyrgyz Republic agricultural soil fertility.

It is obvious that soil depletion is the direct consequence of intense farming and there is a danger that the Republic’s agricultural resource base will be degraded to catastrophic levels with a 35.4%, decrease in phosphor supplies (mean– 49.6% and with zero level – 17.7%) in agricultural land areas. The problem of optimal phosphoric level supply is necessary for maintaining soil fertility and agricultural commodity production amelioration.

World standards were well known for apatite and silicon-phosphoric ores (mainly in former USSR); granular phosphorite ores in countries of Algeria-Tunis basin [3, 4, 5]. Kyrgyzstan does not possess the afore-mentioned traditional phosphoric ores, in contents of which average Р2О5 is not less than 7%.

However, results from the last ten years of geological research show that in the south-east section of the Ferghana Valley, phosphoric mineralization manifests were found out mainly in arenaceous, argillaceous, carbonate-argillaceous and carbonate layers of secondary neozoic age (Jura, whitewash, palaeogene). Surprisingly, the average content of
Р
2О5 does not exceed 3-7%, and, frequently, phosphor is found in an easily-assimilating lemon-soluble form.

From the scientific point of view, such phosphoric manifests constitute new and nontraditional phosphorite formations based on their stratigraphic level. Secondary-neozoic stratigraphic level of phosphorite cumulating in south-eastern Ferghana Valley layers is part of the Central Kyzyl-Kum phosphoritewear basin, and is equal to phosphorites of Algeria-Tunis and continued in Mediterranean-Pacific planetary zone. That is why, obviously, perspectives for discovery of industrial and nontraditional types of phosphorite ores exist in Kyrgyzstan. Problems of phosphorite formation genesis in layers and prognosis of mineralization are not studied and are a realistic option; i.e. have theoretical and practical meaning.

Spreading of such phosphorite results in whitewash and paleogene upper sediments, and also in prejurassic cortex weathering. By discovering this favorable form of phosphor in nature, options for the definite supposition of their perspective practical utilization are created. Naturally, for such ore types examination is required to carry out geological research and to elaborate enrichment and processing technologies.

The problem presented is based on fundamental research and requires a solution composed of several theoretical and practical tasks using the following scheme:

  • genesis study of phosphorite accumulations and their geographic spread throughout the Ferghana Valley (Kyrgyzstan);
  • development of mining of phosphorite ores and enriched technologies for extracting ore concentrate;
  • substantiation of ore concentrate’s physics-chemistry basis development with aim of extracting phosphorus-containing fertilizers;
  • agrotechnolgical research of obtained fertilizers with further tests conducted on agricultural soil lands;
  • development of the Kyrgyz Republic’s soils fertility rehabilitation.

The proposed project rejuvenates research of the role of phosphor in nature, with emphasis on new levels of high quality industrial-genetic formation. It will define the Kyrgyz Republic’s scientific and practical foundations of geologic-economic prognosis in its phosphor-material development base, hence the concept of self-provision, which is the aim of ISTC.

Previous experience. The proposed project is based on our specialists’ many years experience working in the area of exploring, mining and strategic mineral materials processing (uranium, mercury, and lead, among others) both in the territories of the former USSR and abroad. Potential possibilities to be included in the proposed project are scientific publications, projects, reports, and geologic maps developed by former “arm” scholars and specialists (project executors) devoted to mineral materials’ research, perfection of methods for seeking raw materials, geological exploration, mineral material mining, and processing technique and technology define.

Activity volume. The proposed project is related to fundamental, practical research and to technology demonstration.

In part, fundamental research will include:

  • Conducting regional surveys of main phosphor mineralization genetic types with the Kyrgyz Republic’s territories overestimation on phosphate material and prognosis-mineralogical maps in 1:25000 scale creation.

In part, practical research will include:
  • Enlarging geological exploration in prospective phosphor mineralization areas and locations in 1:5000, 1:1000;
  • Elaborating the geological-technical model of studied phosphorite objects, concentrating efforts on enrichment and ore processing technologies.
  • chnologies elaboration will include:
  • Developing techniques for economic substantiation (TES) of deposits settling perspectives;
  • Developing granular and granular-oolitic phosphorites open mining possibilities;
  • Expanding projects on deposits exploitation.

Technology demonstration will include:
  • On the base of small and medium deposits, working through open quarries to organize small-tonnage phosphorous mineral fertilizers industry;
  • Demonstrating an approximate business plan regarding agricultural phosphorous fertilizers production.

Expected results:

Results of research and elaboration will be:

  • Vast attainments in the area of different phosphor mineralization’s genetic types regional accumulations and allocations in the Ferghana Valley;
  • Defined long-term scientific research of new agro-ores genetic types with evaluation of possible phosphor mineralization reserves in the territory of the Kyrgyz Republic;
  • For the first time in Kyrgyzstan, development of industrial deposits of phosphorite ores, on the base of which will be developed production of mineral fertilizers with high commercial potential in the domestic market;
  • Developed and organized industrial production of agricultural phosphor fertilizers that will concentrate efforts and means on a domestic material base, allowing the Republic to decrease their economical dependence on the import of agricultural fertilizers and inputs;
  • Development of a business-plan on phosphor deposits development, enrichment and processing.

ISTC aims and goals realization.

The proposed project meets all ISTC requirements:

  • Gives an opportunity to scholars and “arm” specialists to carry out research activity in the sphere of agricultural fertilizers’ mineral-material resources base strengthening;
  • Gives an opportunity to reorient “arm” scholars and specialists toward world markets and international standards, solving main problems of exhausted soil land fertility rehabilitation and the Kyrgyz Republic’s ecologically clean agricultural commodity production;
  • Work on the proposed project contributes to Kyrgyz scholars’ integration into the international scientific community, maintaining conversion processes and assisting national and international resource technologies movement within the agroindustrial sector;
  • Solves the Republic’s social-economic problems in this transitional period.

Technical approach and methodologies.

The project anticipates usage of traditional geological methods of research, mineral material enrichment and processing methods, and also computer, physical and technological modeling.

Project implementers anticipate large volumes of testing and analytical works with usage of statistics and mathematical methods and new computer programming and diagnosis utilization for processing of received results. Methods of phosphor ores’ technical enrichment and processing are accompanied by systematical agrochemical and agrotechnological tests. Methods of microscopic, X-ray and radiometric researches will be used. For geological exploration technical means, allowing evaluation of mineralization perspectives on depth are appropriate. Based on past experience of “arm” scholars and specialists in the sphere of enrichment technology, agromineral material processing will enable formation of several unique technological schemes for testing experiments and realizing results.

Foreign Collaborators’ Role

  • Informational exchange in the sphere of phosphorite deposits in nature between project executors and collaborators;
  • Evaluating research and results;
  • Evaluating enrichment and processing technologies’ tests and resutls, developed during the project execution;
  • Elaboration of joint recommendations on obtained agricultural phosphor fertilizers;
  • Joint search for enterprises or firms specializing in agricultural fertilizers;
  • Holding of joint seminars on phosphor ores enrichment and chemical processing.


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