42 - Scientific, technological and industrial services, research and design
Goods & Services
Scientific and technological services; scientific and
technological design and research services; industrial
analysis and research services; surveying [engineering
work]; technical advisory services with respect to
engineering work; engineering studies; chemical engineering;
engineering services; research and development services for
others; research and development services in the field of
food; research and development services in the field of
chemistry; feasibility studies with respect to engineering;
scientific feasibility studies; technical feasibility
studies; technical feasibility studies in the field of
engineering; technical project studies; technical project
studies in the field of construction; programming of
software for importing and managing data; research, design
and development of software for data management; laboratory
services in the field of chemistry; product development,
namely development of chemical products, compounds and
ingredients particularly for the manufacture of
pharmaceutical and veterinary products, products for cattle
consumption, for research and scientific purposes; chemical
and scientific research; design of installations for
treatment, transformation and purification of organic
substances, organophosphorous compounds, mineral salts and
phosphates; chemical engineering consultancy; technical
advice with respect to machine construction; information and
advice relating thereto.
2.
Method for purification of at least one aqueous solution of phosphoric acid
3; adding barium carbonate to said vessel, said barium carbonate having a specific particle size distribution which allows for effective flow of the barium carbonate while allowing it to have good reactivity.
Association Pour La Recherche Developpement Des Methodes Et Processus Industriels (France)
Inventor
Boulif, Rachid
Dhiba, Driss
Semlal, Nawal
Germeau, Alain
Toussaint, Claudia
Nzihou, Ange
Pham Minh, Doan
Sane, Abdoul Razac
Abstract
A method for manufacturing a ceramic material for thermal energy storage, includes producing a mixture of at least particles of clay and particles of natural and/or synthetic phosphate, and water, the mixture comprising between 0.5% and 40% by weight of phosphate compared to the weight of the mixture with the exception of water, and shaping and firing of the mixture to obtain the ceramic material. A ceramic material for thermal energy storage includes: a matrix of clay and, if appropriate, sand, and particles of a natural and/or synthetic phosphate dispersed in the matrix, the ceramic material comprising between 0.5% and 40% by weight of phosphate compared to the weight of the ceramic material. A method for storing thermal energy in the ceramic material includes: placing a heat transfer fluid in contact with the ceramic material, to transfer heat from the heat transfer fluid to the ceramic material in a charge phase, and to transfer heat from the ceramic material to the heat transfer fluid in a discharge phase.
A process for producing a phosphate containing product from a phosphate source is provided. a reactor is fed with a raw material including phosphate in amounts of at least 5 wt. % P2O5, and calcium in amounts of at least 0.7 wt. % CaO. The raw material is digested with a digestion liquor (L) of an aqueous solution of sulphuric acid (H2SO4) and a mineral acids (HX), in a ratio (H+(SA)/H+(L) of between 2 and 75%, where H+(SA) and H+(L) are the mole content of H+issued from the sulphuric acid and the digestion liquor (L), respectively. The in amounts such that the molar ratio H+(L)/Ca is between 0.8 and 1.95, wherein Ca is the mole content of calcium. The digested suspension is separated into an aqueous phosphate rich solution and a first solid phase.
A process and an apparatus for purifying a phosphate containing acidic solution (P1) containing impurities through a nanofiltration station (2) includes a number of nanofiltration membrane units arranged in series. At least one permeate recirculation loop, branching off the retentate side of the first membrane unit (M1) and closing the loop at the entry line (1e) to combine at least one of three permeates with the phosphate containing acidic solution (P1), the three permeate recirculation loops include:
a first recovery recirculation loop,
a first exit recirculation loop, and
a second recovery recirculation loop.
B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
5 concentration thereof and thus to form an enriched phosphoric acid solution. A portion of the enriched phosphoric acid solution is conveyed with a flow rate of Qp into the combustion chamber in order to be pulverised in the flame. The rest of the enriched phosphoric acid solution is conveyed into a recirculation loop in order to be reinjected into the gas-acid contactor with a flow rate of Q2. The ratio of Qp/(Qp+Q2) is controlled with a predefined value.
B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
B01J 19/30 - Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
Association Pour La Recherche Developpement Des Methodes Et Processus Industriels - A.R.M.I.N.E.S. (France)
Inventor
Boulif, Rachid
Dhiba, Driss
Semlal, Nawal
Germeau, Alain
Toussaint, Claudia
Nzihou, Ange
Pham Minh, Doan
Sane, Abdoul Razac
Abstract
A method for manufacturing a ceramic material for thermal energy storage, includes producing a mixture of at least particles of clay and particles of natural and/or synthetic phosphate, and water, the mixture comprising between 0.5% and 40% by weight of phosphate compared to the weight of the mixture with the exception of water, and shaping and firing of the mixture to obtain the ceramic material. A ceramic material for thermal energy storage includes: a matrix of clay and, if appropriate, sand, and particles of a natural and/or synthetic phosphate dispersed in the matrix, the ceramic material comprising between 0.5% and 40% by weight of phosphate compared to the weight of the ceramic material.
A method for manufacturing a ceramic material for thermal energy storage, includes producing a mixture of at least particles of clay and particles of natural and/or synthetic phosphate, and water, the mixture comprising between 0.5% and 40% by weight of phosphate compared to the weight of the mixture with the exception of water, and shaping and firing of the mixture to obtain the ceramic material. A ceramic material for thermal energy storage includes: a matrix of clay and, if appropriate, sand, and particles of a natural and/or synthetic phosphate dispersed in the matrix, the ceramic material comprising between 0.5% and 40% by weight of phosphate compared to the weight of the ceramic material.
A method for storing thermal energy in the ceramic material includes: placing a heat transfer fluid in contact with the ceramic material, to transfer heat from the heat transfer fluid to the ceramic material in a charge phase, and to transfer heat from the ceramic material to the heat transfer fluid in a discharge phase.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Phosphates; ammonium phosphates; monoammonium phosphate;
chemical products used for fish farming other than
pharmaceutical products; mixtures of chemical products and
microorganisms increasing the nutritional value of
foodstuffs for animals other than for veterinary use.
The present invention relates to an inorganic solid nutritive composition comprising at least one polyphosphate and at least one source of iron as micronutrient, wherein said composition is water-soluble and comprises an iron content of between 0.1% and 5% by weight of iron relative to the total weight of said solid composition.
01 - Chemical and biological materials for industrial, scientific and agricultural use
31 - Agricultural products; live animals
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Chemical products for use in industry; chemical products
for use in agriculture; chemical products for use in
horticulture; chemical products for use in forestry;
unprocessed artificial resins; unprocessed plastics; soil
fertilizers; chemical substances for preserving foodstuffs;
phosphoric acid; phosphates. Foodstuffs for animals. Treatment, transformation and purification of organic
substances; treatment, transformation and purification of
organophosphorus compounds; treatment, transformation and
purification of mineral salts; treatment, transformation
and purification of phosphates; production of energy;
phosphoric acid production; treatment of waste water and
sludge using physical, chemical and/or biological processes;
professional consultancy services and technical consultancy
in the field of treatment, transformation, purification and
treatment of organic substances, organophosphorus compounds,
mineral salts and phosphates, as well as in the field of
energy production and treatment of waste water and sludge. Scientific and technological services; scientific and
technological design and research services; industrial
analysis and research services; design and development of
software; research laboratory services; product
development, namely development of chemical products,
compounds and ingredients particularly for the manufacture
of pharmaceutical and veterinary products, products for
cattle consumption, for research and scientific purposes;
chemical and scientific research; design of installations
for treatment, transformation and purification of organic
substances, organophosphorous compounds, mineral salts and
phosphates; chemical engineering consultancy.
This invention pertains to a process for manufacturing an iron-based nutrient composition comprising at least the steps of supplying an iron source and a phosphate source containing at least one polyphosphate, further comprising a mixing step of the iron source with the phosphate source. The iron source and phosphate sources being in their solid phase, the mixing of the two being solid-solid mixing, leading to the obtaining of a water-soluble, iron-based solid nutrient composition.
