CAS: 1305-78-8; Calcium Oxide

Calcium Silicate 反应生成氧化钙
参考文献:Funabasi,Tosixiko;Kaminodzono,Aki;Utimura,Iosixaru
标题:Funabasi,Tosixiko;Kaminodzono,Aki;Utimura,Iosixaru

专利信息

专利号:WO-2025037328-A1
优先权日:2023-08-11
标题:A method for synthesis of rare-earth oxychloride and production of rare-earth metal/alloy
发明人：BORRA PROF CHENNA RAO; LAKSHMI BORRA VENKATA; JANA DR PRASANTA; ROUT SONALI
权利人:INDIAN INSTITUTE OF TECH KHARAGPUR
摘要:The present disclosure relates to a method for external synthesis of rare-earth oxychloride and production of rare-earth metal or alloy. The method comprises the steps of adding hydrochloric acid (HCl) to a portion of a pre-defined weight of rare-earth oxide (RE2O3) converting the portion of RE2O3 to rare-earth chloride hydrate (RECl3.xH2O). The method further comprises mixing the residual rare-earth oxide (RE2O3) with the RECl3.xH2O and heating the mixture to a temperature exceeding 300℃ to obtain rare-earth oxychloride (REOCl). The method includes making the obtained REOCl to react directly with a reductant or mixture of reductant and alloying element in a temperature of 600℃ - 1400℃ for reducing the rare-earth oxychloride (REOCl) to rare-earth metal or alloy; and upon cooling, treating the reduced mass of rare-earth metal or alloy with water and dilute acid to remove reaction byproducts such as calcium chloride (CaCl2) and calcium oxide (CaO).

专利号:US-9518047-B2
优先权日:2013-10-17
标题 :Process for the industrial synthesis of lurasidone
发明人：ANGELINI TOMMASO; BETTONI PIERGIORGIO; ROLETTO JACOPO; PAISSONI PAOLO
权利人:PROCOS SPA
摘要:Disclosed is a process for the industrial synthesis of Lurasidone from (1R,2R)-cyclohexane-1,2-diyldimethanol (1), 3-(piperazin-1-yl)benzo[d]isothiazole (3) and (3aR,4R,7R,7aS)-3a,4,7,7a-tetrahydro-4,7-methanoisobenzofuran-1,3-dione (6).). Said process is optimised to obtain Lurasidone with high yields and high purities by preparing highly pure synthesis intermediates, using critical raw materials and reagents in amounts close to the stoichiometric amounts, increasing productivity and reducing the costs and environmental impact of the process.

专利号:US-4379078-A
优先权日:1981-01-16
标题:Process for producing granulated catalyst for the synthesis of ammonia
发明人：LYTKIN VIKTOR P; MENSHOV VLADIMIR N; FROLOV JURY S; POLIKARPOVA ZINAIDA A; SOBOLEVSKY VIKTOR S; SELJUTINA MARIA G; ANOKHIN VLADIMIR N; BARBOSOV NIKOLAI D; VORONTSOV SERGEI P; VORONTSOVA ADMINISTRATOR BY NI; CHISTOZVONOV DAVID B; CHISTOZVONOVA ADMINSTRATOR BY
权利人:LYTKIN VIKTOR P; MENSHOV VLADIMIR N; FROLOV JURY S; POLIKARPOVA ZINAIDA A; SOBOLEVSKY VIKTOR S; SELJUTINA MARIA G; ANOKHIN VLADIMIR N; BARBOSOV NIKOLAI D; VORONTSOV SERGEI P; VORONTSOVA ADMINISTRATOR BY NI; CHISTOZVONOV DAVID B; CHISTOZVONOVA ADMINSTRATOR BY
摘要:A process for producing a granulated catalyst for the synthesis of ammonia which comprises simultaneous melting and oxidation of iron using promotors in a thin layer of a melt of the resulting catalyst mass, granulation of said melt by a stream of air ensuring a horizontal movement of the formed granules and cooling thereof to the temperature of 1,000 DEG C., whereafter the resulting granules are reduced by a reducing gas at their spontaneous cooling.

专利号:WO-2024133119-A1
优先权日:2022-12-19
标 题:Process for the synthesis of isophorone in the liquid phase, including recycling of the by-products
发明人：RUPPIN CHRISTOPHE
权利人:ARKEMA FRANCE
摘要:The present invention relates to a continuous process for the synthesis of isophorone in the liquid phase by alkaline self-condensation of acetone, comprising the following successive steps: a) continuously injecting, through a tubular reactor (R), a stream of an aqueous alkali hydroxide solution and a stream of an organic solution comprising acetone and by-products recycled in step g), followed by b) condensation reaction of the acetone in the tubular reactor (R), then c) distillation of the reaction mixture from the tubular reactor (R), then d) separation of the concentrated raw reaction product from the distillation of step c), resulting in an alkaline aqueous phase and an organic phase containing isophorone, then e) distillation of the organic phase containing the isophorone recovered in the preceding step, then f) distillation of the polycondensation sub-products from the bottom of the column (D2) from the preceding distillation, then g) recycling, to the tubular reactor (R), of the stream from the column head of the preceding distillation (D3), said stream comprising xylitones and/or isoxylitones.

专利号:US-7001625-B2
优先权日:2001-07-30
标 题:Solid phase synthesis of salts of organic acids including butyric acid
发明人：VAN DYCK STEFAAN; ADAMS CLIFFORD; MEEUSEN ANDRE; VAN CAMPENHOUT LEEN
权利人:KEMIN IND INC
摘要:A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A mixture of liquid organic acids, including butyric acid, is applied to an inert, absorbent carrier. A solid base is then added during stirring. The acid is slowly released from the carrier preventing the fast reactions that lead to the formation of clumps. The exothermic reaction releases heat which assists in reducing the moisture content of the product. The addition of butyric acid results in a product which has an improved effect on animal growth over the animal feed additive without the addition of butyric acid.

专利号:US-6986909-B2
优先权日:2001-07-30
标 题 :Solid phase synthesis of salts of organic acid
发明人：VAN DYCK STEFAAN
权利人:KEMIN IND INC
摘要:A process for the solid-phase synthesis of salts of organic acids in a granular, free-flowing, and dust-free form particularly suited for use as animal feed additives. A liquid organic acid is applied to an inert, absorbent carrier. A solid base is then added during stirring. The acid is slowly released from the carrier preventing the fast reactions that lead to the formation of clumps. The exothermic reaction releases heat which assists in reducing the moisture content of the product.