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Aluminium hydroxide

About: Aluminium hydroxide is a research topic. Over the lifetime, 2043 publications have been published within this topic receiving 22032 citations. The topic is also known as: Al(OH)3 & Amphojel.


Papers
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Patent
12 Feb 1997
TL;DR: In this article, a refractory adhesive steel plate is prepared through such steps as mixing aluminium hydroxide with water, adding phosphoric acid, stirring while heating to boil, and mixing with bauxite, kaolinite and silicate sol until it becomes paste.
Abstract: A refractory adhesive steel plates is prepared through such steps as mixing aluminium hydroxide with water, adding phosphoric acid, stirring while heating to boil, and mixing with bauxite, kaolinite and silicate sol until it becomes paste. It can be used to block leakage and repair of high-temp metal pipeline (such as the one in boiler) with high adhesion.

5 citations

Patent
27 Sep 1979
TL;DR: In this article, the authors proposed a method to remove oil from emulsified oil-containing waste water by treating the waste water with an emulsion treating agent such as metal oxide, hydroxide, etc.
Abstract: PURPOSE:To remove oil from emulsified oil-containing waste water quickly, cheaply and efficiently, by treating the waste water with an emulsion treating agent such as metal oxide, hydroxide, etc. CONSTITUTION:The emulsified oil-containing waste water discharged from a heavy compressor or the like and removed of floating oil is treated with the emulsion treating agent so that the remaining oil is removed from the waste water. The emulsion treating agent is powder of at least one of metal oxide such as ferric oxide or magnesium oxide, hydroxide such as aluminium hydroxide or ferric hydroxide, aluminium phosphate and ferric phosphate. The oil adheres to the surface of the emulsion treating agent. The oil is removed from the agent by heating or burning, thereby regenerating the agent.

5 citations

Patent
08 Oct 1996
TL;DR: In this paper, a method for coating a substrate with a cementitious composition by spraying, comprising the addition to the initial cementitious mix one of a beta -naphthalene sulphonate-formaldehyde condensate and a water-soluble poly(alkylene oxide) of molecular weight from 100,000-8,000,000.
Abstract: A method for coating a substrate with a cementitious composition by spraying, comprising the addition to the initial cementitious mix one of a beta -naphthalene sulphonate-formaldehyde condensate and a water-soluble poly(alkylene oxide) of molecular weight from 100,000-8,000,000, the other being added at the spraying nozzle, there being additionally added at the nozzle (preferably as a single component with the other nozzle-added material) an accelerator selected from aluminium sulphate, aluminium hydroxide and aluminium hydroxysulphate. In a preferred embodiment, the material added at the nozzle also contains a superplasticiser.

5 citations

Patent
29 Oct 2014
TL;DR: In this paper, a heat stabilizer for PVC is described, which is characterized by dissolving sodium terephthalate and aluminium nitrate (aluminium chloride, aluminium sulfate or aluminium hydroxide) in water, stirring at 20-180 DEG C for reacting for 1-24 h, and then filtering, washing and drying.
Abstract: The invention relates to a heat stabilizer for PVC, and preparation and application thereof. The preparation method is characterized by comprising: respectively dissolving sodium terephthalate and aluminium nitrate (aluminium chloride, aluminium sulfate or aluminium hydroxide) in water, stirring at 20-180 DEG C for reacting for 1-24 h, and then filtering, washing and drying, so as to prepare the aluminium terephthalate finished product and apply the finished product as the PVC heat stabilizer. The product is efficient, non-toxic, environment-friendly, low in cost, good in initial-stage dyeing property, excellent in transparency, weatherability and plasticizing property, and relatively good in compatibility with PVC. The product performances are not influenced by usage amount of additives during processing, processing equipment are not easy to wear, and the heat stabilizer has wide application prospect in PVC industry.

5 citations

Patent
10 Mar 2009
TL;DR: In this article, a method of catalyst preparation is described, involving preliminary processing of inert Al-containing foil block carrier by baking at 850-920°C in air flow for 12-15 hours, followed by carrier application onto intermediary modified aluminium oxide coating surface from suspension at room temperature, thermal processing of block with intermediary coating in air-flow and further applying one or more active catalytic metals of platinum group.
Abstract: FIELD: chemistry. ^ SUBSTANCE: invention concerns neutralisation catalysts for exhaust gas (EG) of internal combustion engines (ICE) and industrial effluent gas. Catalyst is obtained due to: 1) adding orthophosphoric acid to coating suspension to obtain alumophosphate, a binding substance, the total composition of which serves for coating reinforcement and thermal stabilisation of porous coating structure; 2) energy heterogeneity increase by adding zyrconyl dihydrophosphate to coating suspension, so that the total composition serves to enhance heat resistance of both modified aluminium oxide and catalytic contacts, i.e. of the whole catalyst. Invention claims method of catalyst preparation, involving preliminary processing of inert Al-containing foil block carrier by baking at 850-920°C in air flow for 12-15 hours, followed by carrier application onto intermediary modified aluminium oxide coating surface from suspension at room temperature, thermal processing of block with intermediary coating in air flow and further applying one or more active catalytic metals of platinum group. Intermediary coating is applied from suspension containing additionally orthophosphoric acid and zyrconyl dihydrophosphate at the following component ratio, wt %: aluminium hydroxide (pseudobemite) - 22-32, aluminium nitrite - 2-4, cerium nitrite - 2-5, orthophosphoric acid - 1-2, zyrconyl dihydrophosphate - 1-3, water - up to 100; thermal processing of block with intermediary coating is performed at 620-650°C with maturing for 1.8-2 hours. Invention also claims catalyst including metal block carrier, intermediary coating of modified aluminium oxide and active phase of noble metals of platinum group applied onto porous surface of intermediary coating. Catalyst includes 7-14 wt % of modified Al2O3 with specific surface area of 120-130 m2/g, which includes additionally aluminium phosphate and zyrconyl phosphate at the following weight ratio of coating components (%): aluminium oxide (89.7-71.4), cerium oxide - (3.5-9.7), aluminium phosphate - (3.6-8.1), zyrconyl dihydrophosphate - (3.2-10.9). ^ EFFECT: significant enhancement of mechanical and heat resistance of catalytic coating at high efficiency in waste gas treatment process, prolonged lifetime. ^ 2 cl, 2 tbl, 26 ex

5 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20234
202222
202123
202031
201936
201863