Alkaline Treatment Patents (Class 71/42)
-
Patent number: 12065390Abstract: An agricultural energising biostimulating composition made from sucrose, protein/hydrolised protein, and humic acid. The composition is aimed at solving the energy deficit that is affecting the production of fruit and vegetables in the agriculture industry. Plants do not obtain the energy they need for their development, which affects the quality and quantity of the fruit produced.Type: GrantFiled: November 17, 2020Date of Patent: August 20, 2024Assignee: POWER ROOTS SPAInventors: Maria del Pilar Barros Covarrubias, Alfredo Barros Opazo, Felipe Barros Opazo, Hernan Villalobos Barcelo, Eduardo Conca Calvo
-
Patent number: 11745988Abstract: A portable toilet is mounted on a skid. The skid has a pair of horizontal members with a terminal end with a vertically oriented hole. A leveler affixed to the horizontal member at the terminal end via a connector with a first vertical hole laterally spaced away from a second vertical hole. An anchor bolt is associated with the first vertical hole and engageable with the vertically oriented hole in the skid's horizontal member, thereby fastening the leveler to the toilet. A leveler bolt is threadingly engaging the second vertical hole for movement in a vertical direction in relationship to the toilet; and a foot associated with a lower terminal end of the leveler bolt. Whereby when the leveler is anchored to the skid and the leveler bolt is engaged with the foot, the portable toilet may be leveled by movement of the leveler bolt.Type: GrantFiled: June 2, 2022Date of Patent: September 5, 2023Inventor: Fred A. Wagner, III
-
Patent number: 11542210Abstract: The present invention provides for a method for producing an aqueous monoammonium phosphate containing fertilizer solution. The method provides for means to control the temperature of a reaction zone as measured at a reagent entry point and a product exit point. The pH of the reaction is monitored and the reaction is terminated when the reaction mixture has reached a pH of between about 5.5 and about 7.5. The invention further provides for a method of treating crops with a monoammonium phosphate solution having a pH of between 6 and 7.Type: GrantFiled: June 20, 2016Date of Patent: January 3, 2023Assignee: Liquigro Holdings (Proprietary) LimitedInventor: Gerhardus Tredoux Botha
-
Patent number: 10197272Abstract: The description relates to a process for reducing acid plume from stacks from coal-fired combustors operating at varying loads, which have typically been treated by back-end calcium carbonate (limestone) which has not been able to effectively control visible acid plume as power is ramped up from low load. According to the process, as high sulfur and high iron coals are burned in a combustor, magnesium hydroxide slurry is introduced into hot combustion gases in or near the combustion zone. And, during ramp up to high load from a period of operation at low load, additional magnesium hydroxide is introduced into an intermediate-temperature zone.Type: GrantFiled: September 22, 2016Date of Patent: February 5, 2019Assignee: FUEL TECH, INC.Inventors: Ian Saratovsky, Scott K. Bohlen, Chrisopher R. Smyrniotis, Kent W. Schulz, Emelito P. Rivera
-
Patent number: 9169165Abstract: A liquid foliar nutrient composition comprising oil, essential element(s) and optionally, a surfactant to enable a stable useable dispersion of the oil and the essential element(s) to be formed.Type: GrantFiled: February 23, 2011Date of Patent: October 27, 2015Assignee: Innovative Chemical Services Pty LtdInventors: Robert William Killick, Andrew Robert Killick, Peter William Jones, John David Morrison
-
Patent number: 8216337Abstract: 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) neutralization of the polyphosphate with a basic compound followed by drying and pulverization to obtain a solid powdery material.Type: GrantFiled: June 21, 2006Date of Patent: July 10, 2012Assignee: National Research Development Corp.Inventor: Chandrika Varadachari
-
Publication number: 20110296885Abstract: A macronutrient sustained release composition for a plant locus containing a nanocomposite wherein a nitrogen containing macronutrient compound adsorbed on the surface of hydroxy apatite phosphate nanoparticles is intercalated within the interlayer spacing of a nanoclay. The nanocomposite containing the adsorbed macronutrient compounds is slowly released in a sustained manner when contacted with an acidic soil.Type: ApplicationFiled: June 5, 2010Publication date: December 8, 2011Applicant: SRI LANKA INSTITUTE OF NANOTECHNOLOGY (PVT) LTD.Inventors: Kottegoda Nilwala, Imalka Munaweera, A. Nadeesh Madusanka, Veranja Karunaratne
-
Publication number: 20100311584Abstract: Provided is a freely flowing particulate fertilizer essentially consisting of potassium phosphate of the formula K3H3(PO4)2 and of less than 8 wt % water. The stable and not caking fertilizer is characterized by an XRD signal corresponding to 2-theta of about 70°. An economic process for making the fertilizer is also provided consisting in reacting KOH and monopotassium phosphate (KH2PO4) in water, heating the mixture under vacuum and cooling it down, thereby obtaining the particulate fertilizer.Type: ApplicationFiled: November 13, 2008Publication date: December 9, 2010Applicant: ROTEM AMFERT NEGEV LTD.Inventors: Alexander Josef, Itshak Zukerman
-
Publication number: 20100206032Abstract: 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.Type: ApplicationFiled: June 21, 2006Publication date: August 19, 2010Applicant: NATIONAL RESEARCH DEVELOPEMENT CORPORATIONInventor: Chandrika Varadachari
-
Patent number: 7175683Abstract: A process for transforming sludge into npk type granulated fertilizer in which the energy consume is reduced a 90% thanks to the addition of a special filtration step in which the water content is reduced a 50% and the remaining water is evaporated by the exothermic reaction occurring in the process. Additionally, the process of the present invention includes mechanisms that allow some of the by products generated by some of the reactions such as gypsum, to adsorb crystallization water and reduce the humidity of the mass without using external energy.Type: GrantFiled: February 13, 2003Date of Patent: February 13, 2007Assignee: Chemical Biosolids, Inc.Inventor: José Cabello-Fuentes
-
Patent number: 7135116Abstract: The present invention relates to a process for treating a wastewater comprising an ammonium ion species and a phosphorus ion species. The process comprises the steps of: (i) treating the effluent in a first stage of the process to convert the phosphorus to a phosphorus-containing salt; (ii) treating the wastewater in a second stage of the process to convert the ammonium ion species to gaseous ammonia; (iii) removing the struvite and/or other phosphorous containing salts from the effluent; and (iv) removing the gaseous ammonia from the wastewater.Type: GrantFiled: April 22, 2003Date of Patent: November 14, 2006Inventor: Kenneth Haggerty
-
Patent number: 6830696Abstract: A method of treating spent alkaline pulping liquor (black liquor) includes the steps of providing black liquor containing lignin, and acidulating a phosphate containing material, wherein phosphoric acid is generated by the acidulating step. The black liquor is mixed with phosphoric acid from the acidulated phosphate containing material, wherein lignin is separated and clarified liquor results. The method can include the step of adding a water soluble, surface active, polymeric, coagulant agent to the black liquor before mixing with the phosphoric acid from the phosphate containing material. The clarified liquor comprises anion species including phosphate.Type: GrantFiled: December 1, 2003Date of Patent: December 14, 2004Assignee: University of Florida Research Foundation, Inc.Inventors: Hassan E. El-Shall, El-Sayed A. Abdel-Aal
-
Patent number: 6569342Abstract: A method is providing for treating waters, such as standing and flowing waters and waste waters, soils, sediments and/or silts. At least one alkaline earth metal peroxide is brought into contact with such waters or the like, especially to effect immobilization of phosphates and heavy metals except manganese and iron therein.Type: GrantFiled: November 14, 2000Date of Patent: May 27, 2003Inventors: Thomas Willuweit, Stefan Nowicki, Kai-Uwe Ulrich, Gerald Jakobson
-
Patent number: 6506805Abstract: A magnesium ammonium phosphate slurry and method of producing magnesium ammonium phosphate slurries. The method provides for obtaining a magnesium hydroxide supply having a small particle size of about 2 microns. Aqua ammonia and phosphoric acid are sequentially added while maintaining the temperature at below 110° F. The magnesium ammonium phosphate hexahydrate slurry formed has a small particle size of about 2 to 7 microns. The hexahydrate slurry may be converted to a monohydrate slurry having a particle size of less than about 8 microns by heating to the boiling point in the presence of excess water or heating to the boiling point while maintaining a very moderate hydrostatic pressure.Type: GrantFiled: August 17, 2001Date of Patent: January 14, 2003Inventors: J. Richard Green, Warren D. Winterson
-
Patent number: 6476082Abstract: A magnesium ammonium phosphate slurry and method of producing magnesium ammonium phosphate slurries. The method provides for obtaining a magnesium hydroxide supply having a small particle size of about 1 to 2 microns. Aqua ammonia and phosphoric acid are sequentially added while maintaining the temperature at below 110° F. The magnesium ammonium phosphate slurry formed has a small particle size of about 2 to 5 microns.Type: GrantFiled: August 17, 2000Date of Patent: November 5, 2002Assignee: Magline, Inc.Inventor: J. Richard Green
-
Patent number: 5859124Abstract: A lubricant is provided for use in hot working such as cross-roll rolling of a seamless steel pipe. It effectively reduces the friction coefficient between the working tools and the material under the hot work, thus extending the lives of the tools. The lubricant contains: (A) from about 10 to about 60 wt % of alkali silicate; (B) from about 1 to about 20 wt % of silane coupling agent; (C) from about 0.1 to about 5.0 wt % of at least one kind of alkali compound selected from a group consisting of an alkali hydroxide, an alkali carbonate, an alkali borate and an alkali salt of mineral acid; and (D) from about 30 to about 70 wt % of water. Alternatively, the lubricant contains: (A) from about 10 to about 60 wt % of alkali silicate; (B) from about 1 to about 20 wt % of silane coupling agent; (C) from about 0.1 to about 5.Type: GrantFiled: April 22, 1997Date of Patent: January 12, 1999Assignee: Kawasaki Steel CorporationInventors: Akira Yorifuji, Takaaki Toyooka, Ken Shimamoto, Masaharu Kita, Taro Kanayama
-
Patent number: 5028252Abstract: A fertilizer composition and method for the detoxification and deacidification of soil threatened by acidic deposits which comprises at least one alkali-reactive component, selected from the group which consists of calcium, magnesium, potassium, sodium, ammonium and ammonia compounds in soil neutralizing amounts and at least one water soluble pyrophosphate or polyphosphate capable of forming water insoluble salts with aluminum and heavy metals of a similar magnitude as the diphosphates.Type: GrantFiled: September 16, 1986Date of Patent: July 2, 1991Assignee: Lang & Co., Chemisch-Technische Produkte KommanditgesellschaftInventor: Gertrude Kaes
-
Patent number: 5019148Abstract: A stepwise method of preparing homogeneous mineral granules for agriculture by coreaction of commodity acids and bases which have properties to chemically form a transient fluid adhesive which will harden to form a strong granule binding cement. Water may be added to improve the effectiveness of the adhesive. The transient fluid adhesive is comminuted by mechanically shearing, then particulate mineral solids are admixed mechanically to form a mass of plastic globules which is rolled to form spheroid granules and the fluid adhesive hardens to form the hardened binding cement. The method provides substantially dust-free and attrition resistant animal feed supplement, and plant food fertilizer and micronutrient granules. The commodity acids and bases include aqueous and anhydrous mineral and alkyl carboxylic acids and alkali and alkaline earth bases.Type: GrantFiled: June 14, 1988Date of Patent: May 28, 1991Assignee: Agrinutrients Technology Group, Inc.Inventor: William P. Moore
-
Patent number: 4792349Abstract: The present invention teaches a technique and provides for apparatus eminently useful for the econimic recovery of Fe, Zn, and S from waste galvinizer sulfuric acid and crystals of iron sulfate and zinc sulfate. The technique or method of the instant invention involves the ammoniation of the acid or a solution prepared from such crystals followed by the partial oxidation of the resulting ammoniated suspension to a point where the desired product magnetite is formed in the separated from a marketable solution of ammoniacal zinc sulfate. The effecting of the instant technique requires only a minimal amount of relatively inexpensive equipment and is simply and easily placed into practice by, for example, sparging anhydrous ammonia into a stirred tank of waste acid until the Ph is elevated to about 10. Air can be sparged through the resulting slurry to oxidize the iron in the acid. After a proper incubation period, the desired stable product, e.g.Type: GrantFiled: November 3, 1987Date of Patent: December 20, 1988Assignee: Tennessee Valley AuthorityInventors: Joe R. Trimm, Louis A. Stumpe
-
Patent number: 4650682Abstract: Apparatus and process for chemically treating particulate solids material in free flowing condition with fluid reactants in a drum reactor having an acidifying chamber in which acid is introduced into the solids material and an ammoniation chamber in which ammonia is introduced into the solids material.Type: GrantFiled: February 23, 1983Date of Patent: March 17, 1987Assignee: Agro-Systems Inc.Inventor: Arthur R. Shirley, Jr.
-
Patent number: 4427432Abstract: The process allows essentially all of the nitrogen and P.sub.2 O.sub.5 values in the treated black ammonium polyphosphate liquid to be recovered in the form of valuable clarified product. In the process, a heel of black liquid fertilizer is first clarified by a prior-art procedure using flocculants. The improvement over the prior art picks up with the byproduct tops which is then diluted with the water of formulation required to dissolve additional amounts of ammonium polyphosphate melt. This diluted liquid is filtered, the filter cake containing upwards of 99 percent of the undesirable black carbonaceous material is discarded, and the clear filtrate, which contains essentially all of the nitrogen and P.sub.2 O.sub.5 originally in the tops, is then used in lieu of the prior-art water of formulation to dissolve additional ammonium polyphosphate melt to produce more black ammonium polyphosphate liquid.Type: GrantFiled: August 12, 1982Date of Patent: January 24, 1984Assignee: Tennessee Valley AuthorityInventors: Horace C. Mann, Jr., Kenneth E. McGill
-
Patent number: 4331465Abstract: The invention relates to a method of preventing smoldering decomposition of multiple-nutrient fertilizers containing ammonium nitrate at elevated temperatures by treatment of the granulated, dried and screened fertilizer with ammonia.Type: GrantFiled: December 6, 1979Date of Patent: May 25, 1982Assignee: Chemische Werke Huls AktiengesellschaftInventors: Heinrich Hahn, Hans-Friedrich Kurandt
-
Patent number: 4248617Abstract: This invention relates to a process for producing a granular phosphate fertilizer by reacting and granulating simultaneously a mixture of a basic material which contains acid-soluble CaO and acid-soluble MgO, and also acid-soluble SiO.sub.2, with phosphoric acid and/or an acidic phosphate in such a mixing ratio thatA/MO=0.05-0.45[in which MO represents moles of the acid-soluble alkaline earth metals in the basic material (calculated as their oxides) and A represents moles of the phosphoric acid or the free phosphoric acid derived from the acidic phosphate (calculated as P.sub.2 O.sub.5)]. This process makes use of industrial wastes, as the starting basic material, such as slag discharged from metal refining and fly ash. The granular fertilizer obtained by the process is high in granule hardness, easy to handle, and high in phosphate fertilization effect and gives an effect on improving acidic soil.Type: GrantFiled: March 2, 1979Date of Patent: February 3, 1981Assignee: Mitsubishi Chemical Industries LimitedInventors: Seiichi Kamo, Tetzuo Watanabe, Kiyoshi Nakayama
-
Patent number: 4106922Abstract: A process for the production of highly citrate-soluble calcined phosphate fertilizers is disclosed. The process comprises calcinating a mixture which comprises appropriate amounts of calcium phosphates, silicic acid and an alkaline decomposing agent whereby the naturally occurring mineral trona is used as an alkaline decomposing agent. The process is effected in a rotary kiln; the maximum temperature is about 1300.degree. C.Type: GrantFiled: February 18, 1977Date of Patent: August 15, 1978Assignee: Kali-ChemieInventors: Ulrich Hauschild, Heinrich Roetger
-
Patent number: 3932166Abstract: A method for converting organic waste materials into inert humus-like materials by charring the organic waste materials by heating and drying same in the presence of certain water-soluble inorganic acids, removing residual acid and other water-soluble contaminants by washing the crude char product with water, and utilizing the resulting inert material as a landfill. If desired, the humus-like char products can be reacted with an alkali at elevated temperatures, and the resulting alkali salts of humic-acid-like materials can be mixed with the soil to provide an improved and/or fertilized topsoil.Type: GrantFiled: May 15, 1974Date of Patent: January 13, 1976Inventors: Martin Vignovich, Russell B. Sperry