167results about "Phosphatic fertiliser granulation/pelletisation" patented technology

A biometric anti-theft gear shifter lock control for vehicles, equipment, and machinery, and other transmission actuation devices on land, water, and air, using a gear shifter. A biometric sensor scans in biometric information from a user to a central processing unit (CPU). The CPU finding a match for an authorized user deactivates a shift lock which may be built into an automatic shift vehicle or a solenoid or other switch added to a standard shift vehicle. It sounds an alarm for an unauthorized user. The control may be positioned on a gear shift knob with a flip-type protective cover. The biometrics device could be a fingerprint scanner, a retina scanner, a voice recognition system or other device programmed to operate only upon recognition of a unique biometrically measurable characteristic of one or more authorized users whose biometric data is programmed into the system.

Blends of fertilizer granules and highly absorbent cellulosic granules carrying one or more pesticidal or other active ingredients that resist the formation of actives dust or segregation of the granules and that ensure even and efficient application of both the fertilizer and the active ingredients.

Mechanically strong, water-disintegrable agglomerates made from a particulate calcium source, a water-soluble binder and optionally containing a primary plant nutrient source and/or micronutrient source and a process for forming such agglomerates are disclosed. The agglomerates may be used as a soil liming agent and for introducing nutrient values into cultivated soil. Also disclosed is a method for introducing nutrient values into cultivated soil so as to inhibit leaching of the nutrient values from the soil and improve utilization of the nutrient values by plants grown in the soil.

A fertilizer composition including a base fertilizer granule with a barrier coating and one or more micronutrients. The base fertilizer material is coated with a barrier coating, and then a coating of one or more micronutrients. Alternatively, the base fertilizer material is coated with a barrier coating having discrete particles of micronutrients dispersed throughout. The barrier coating acts to physically and chemically isolate the micronutrient particles from the underlying fertilizer composition such that more of the micronutrient is available to the soil solution, and ultimately to the root zone of the plant.

A process for the preparation of detergent granules, the process comprising:

• • (i) a first step of admixing in a mechanical granulator, a solid component and a first liquid binder, to produce a powder; and
  • (ii) a second step of admixing in a low shear granulator, the powder produced in step (i), and a second liquid binder, to produce the detergent granules;

the second liquid binder having a different composition from the first liquid binder and the weight ratio of the first liquid binder to the second liquid binder being from 15:1 to 1:1, preferably from 10:1 to 1:1, more preferably from 5:1 to 1:1, most preferably from 3:1 to 2:1.

A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.

A composition has a core of at least one fertilizer substance and at least one layer of a coating material surrounding the core. The core may contain nitrogen and the coating material may include one or more linear, saturated aliphatic monocarboxylic acids.

A process for making homogeneous granules of slow-release fertilizer to deliver high doses of slow-release nitrogen in pellets that disperse or fall apart when contacted by moisture. The method includes mixing particles of slow-release nitrogen with particles of a potassium source and particles of a phosphorus source, to make a homogeneous blend of the particles. Then, the blended particles are moistened with water or an aqueous solution of urea to moisten the homogeneous blend. After moistening, the blended particles are contacted with an aqueous suspension of urea-formaldehyde resin to bind the particles into homogeneous granules. The aqueous suspension of urea formaldehyde resin preferably has a urea:formaldehyde ratio of about 1:1.

The invention relates to a method for producing an adsorbent and/or catalyst and binder system comprising I) mixing components comprising (a) a binder comprising a colloidal metal oxide or colloidal metalloid oxide, (b) an oxide adsorbent and/or catalyst particle, and (c) an acid, (ii) removing a sufficient amount of water from the mixture to cross-link components a and b to form an adsorbent and/or catalyst and binder system. The invention also relates to particles made by the process, binders, and methods for remediating contaminants in a stream.

A reinforced-resin coated, attrition resistant controlled release plant food containing water soluble central spheroids of plant nutrients amounting to between 75 and 98 percent and water insoluble resin coatings amounting to between 2 and 25 percent covering the central spheroids with the insoluble resin coatings reinforced with finely divided water insoluble plant nutrients formed in-situ by the chemical coreaction of a plurality of water soluble plant nutrients. The reinforcing nutrients amount to between 5 and 25 percent of the resin coating. A method is provided for preparing the new reinforced-resin coated plant foods with the reinforcing solids distributed throughout the insoluble resins or between thin layers of resins.

A process for the manufacture of an aqueous composition that is a combination of a fungicide and fertilizer comprising the following steps:

• • (1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture;
  • (2) reacting the acid mixture of step (1) with an aqueous hydroxide solution creating an exothermic reaction under pressure; and,
  • (3) cooling the reaction product to between about 35° C. to about 65° C.

The reaction product prepared according to the above process can also be used as a bactericide.

A method of producing a granulated and compacted fertilizer having incorporated micronutrients in which the granulated primary nutrient and micronutrients are mixed at smaller particle sizes before being compacted into a larger, easier to handle particle sizes.

Methods and system for increasing the water solubility and availability of zinc in granular fertilizers using acid treatments. The treatment of granular fertilizers with an acidic solution increases an amount of water-soluble zinc, which in turn, increases the efficiency of zinc uptake and reduces the costs and equipment otherwise needed to mitigate zinc deficiencies.

A water soluble liquid fertilizer concentrate is provided that includes a bio-available phosphorus source, said phosphorus source consisting essentially of a phosphite salt. At least one of a bio-available nitrogen source and a bio-available potassium source are also provided. At least one micronutrient of calcium, magnesium, cobalt, iron, manganese, copper, boron, zinc, or molybdenum is present in the concentrate as an aqueous solute or soluble chelates. In some embodiments, the at least one phosphite salt is present at between 30 to 57 total weight percent dissolved in water and optionally contains a phosphate salt. A process of fertilizing a crop includes diluting the fertilizer concentrate with water to obtain a liquid fertilizer solution. The liquid fertilizer solution is then applied to the crop and after by allowing sufficient time, the fertilizer solution promotes growth of the crop.

A process for the preparation of water insoluble bio-release micronutrient fertilizers, containing iron and manganese with either zinc and/or copper, comprising (a) heating orthophosphoric acid at a temperature of 130° C.-150° C. with a mixture of (i) source of iron oxide, (ii) manganese dioxide or pyrolusite, and (iii) either or both compounds of zinc or copper selected from zinc ash or zinc oxide and cupric oxide, or cupric sulphate or cupric chloride and (iii) a basic compound such as oxide or carbonate of magnesium or calcium, to produce a multi-metallic polyphosphate; (b) neutralisation of the polyphosphate with a basic compound followed by drying and pulverisation to obtain a solid powdery material.

The invention discloses a method and an apparatus used for preparing ammonium phosphate fertilizer from phosphoric acid sediment. The method comprises following steps: the phosphoric acid sediment with a P2O5 content of 30 to 35% is mixed with diluted phosphoric acid with a concentration of 18 to 20% so as to obtain intermediate mixture I with a phosphoric acid content of 20 to 25%; the intermediate mixture I and gaseous ammonia with a concentration of 99% are subjected to neutralization reaction at a N mole/P mole ratio of 1.3-1.35, and a certain amount of sulfuric acid is added so as to neutralize unreacted gaseous ammonia; the N mole/P mole ratio is increased to 1.4-1.45 so as to obtain intermediate mixture II; and the intermediate mixture II is subjected to condensation, granulation and screening treatment. Gaseous ammonia is used for neutralizing the intermediate mixture I with a phosphoric acid content of 21 to 25%, ammonium bicarbonate or liquid ammonia are not used, and reaction contact area and reaction speed of gaseous ammonia and the intermediate mixture I are enlarged and increased respectively, so that filter-pressing washing process of the phosphoric acid sediment is simplified, comprehensive utilization of the phosphoric acid sediment is realized, and the quality of the ammonium phosphate products is improved.