CAS: 7789-02-8; Chromium(Iii) Nitrate Nonahydrate

专利信息

专利号:WO-2024031876-A1
优先权日:2022-08-10
标题 :Method for one-step synthesis of methylcyclopentadiene from cyclopentanone and methanol
发明人：LI NING; ZOU ZHUFAN; LI GUANGYI; ZHANG TAO; WANG AIQIN; WANG XIAODONG; CONG YU
权利人:DALIAN INST CHEM & PHYSICS CAS
摘要:The present invention relates to a method for one-step synthesis of methylcyclopentadiene from cyclopentanone and methanol. Cyclopentanone and methanol are used as raw materials, and are subjected to a cascade dehydrogenation/aldol condensation/selective hydrodeoxygenation reaction in a continuous packed bed reactor under the action of an A x B y O z composite metal oxide catalyst, so as to synthesize a target product, i.e., methylcyclopentadiene. The present invention has a simple process line, is convenient for catalyst preparation, is environmentally friendly, and achieves direct conversion from cyclopentanone and methanol to high value-added methylcyclopentadiene.

专利号:WO-2024123268-A1
优先权日:2022-12-09
标 题 :Production of silver nanoparticles by green synthesis using hazelnut husk extract
发明人：AKDOGAN OZAN; GUNDUZ AKDOGAN NILAY; SIVRI DAMLA; KUREL ALI
权利人:BAHCESEHIR UNIV; PIRI REIS UNIV
摘要:The invention relates to synthesis of nanoparticles from hazelnut husk extract by green synthesis with high efficiency. Use of chemical is limited in the present invention and therefore the synthesis of nanoparticles is provided by green chemistry in the present invention. Said hazelnut may be Corylus and said hazelnut husk may be cob or shell of the hazelnut. In an embodiment of the invention said Corylus may be Colyrus colurna, Corylus americana Corylus avellana, Corylus avellana var. Avellana, Corylus avellana var. Pontica, Corylus chinensis, Corylus colchica, Corylus × colurnoides, Corylus cornuta, Corylus cornuta ssp. californica, Corylus cornuta ssp. cornuta, Corylus fargesii, Corylus ferox, Corylus ferox var. ferox, Corylus ferox var. thibetica, Corylus heterophylla, Corylus heterophylla var. heterophylla, Corylus heterophylla var. sutchuensis, Corylus jacquemontii, Corylus maxima, Corylus potaninii, Corylus sieboldiana, Corylus sieboldiana var. mandshurica, Corylus sieboldiana var. sieboldiana, Corylus wangii, Corylus wulingensis or Corylus yunnanensis.

专利号:US-2022089618-A1
优先权日:2019-01-29
标题:Solid-State Synthesis Of Precursors Of Metal-Organic Frameworks
发明人：MAJANO GERARDO J; FALKOWSKI JOSEPH M
权利人:EXXONMOBIL RES & ENG CO
摘要:Metal-organic frameworks (MOFs) are highly porous entities comprising a multidentate ligand coordinated to multiple metal atoms, typically as a coordination polymer. MOFs are usually produced from a solvent in powder form under hydrothermal or solvothermal synthesis conditions. Alternately, powder-form precursors of MOFs may be formed by milling or mulling a substantially solid mixture of a metal salt and a multidentate organic ligand, optionally in the presence of a small amount of a solvent. The powder-form precursors may then undergo heating, typically in the absence of applied shear, to produce the corresponding MOF. Mulling may be differentiated from milling at least in that mulling applies to the substantially solid mixture at a non-constant pressure and milling applies a constant pressure while forming the powder-form precursor. In some cases, mulling may promote more effective formation of the powder-form precursor compared to milling.

专利号:WO-2025091704-A1
优先权日:2023-10-30
标题 :Manganese oxide loaded cobalt-chromium catalyst, preparation thereof, and use thereof in synthesis of p-chlorobenzaldehyde
发明人：DAI LIYAN; GAO SHENYUAN; ZHONG SHANDI; WANG XIAOZHONG
权利人:UNIV ZHEJIANG
摘要:Disclosed in the present invention are a manganese oxide loaded cobalt-chromium catalyst and a preparation method therefor, and the use of the catalyst in the selective catalytic oxidation of p-chlorotoluene to prepare p-chlorobenzaldehyde. The preparation steps comprise: weighing a certain amount of a manganese salt, weighing cobalt and chromium precursor metal salts according to the loading amount, dissolving them in deionized water, and stirring same to obtain a mixed solution. After the above substances are fully dissolved at a certain temperature, a certain amount of acid is added, and the mixture is continuously heated and stirred. After the reaction is finished, the solid mixture is filtered under suction and washed, then roasted to obtain the catalyst, and finally the catalyst is used for the catalytic oxidation of p-chlorotoluene to prepare p-chlorobenzaldehyde. The catalyst of the present invention has a relatively low preparation cost, is easy to recycle subsequently, and is environmentally friendly and pollution-free. Moreover, the reaction conditions are relatively mild, and both the reaction conversion rate and selectivity are greatly improved. It has a good industrialization prospect.

专利号:US-4665238-A
优先权日:1985-01-22
标题 :Process for the synthesis of alkylaromatic compounds
发明人：IMAI TAMOTSU; BARGER PAUL T
权利人:UOP INC
摘要:Alkylaromatic compounds may be synthesized by reacting an aromatic compound with an alkylating agent comprising a mixture of gases, including carbon monoxide and hydrogen at alkylation conditions in the presence of a dual-function-catalyst. The catalyst system which is employed for this reaction will comprise (1) a composite of oxides of copper and chromium and (2) an aluminosilicate which may be either in crystalline or amorphous form.

专利号:US-8889923-B2
优先权日:2008-07-31
标题 :Synthesis of ethanol from biomass
发明人：JOHNSTON VICTOR J; KIMMICH BARBARA F; VAN DER WAAL JAN CORNELIS; ZINK JAMES H; ZUZANIUK VIRGINIE; CHAPMAN JOSEFINA T; CHEN LAIYUAN
权利人:JOHNSTON VICTOR J; KIMMICH BARBARA F; VAN DER WAAL JAN CORNELIS; ZINK JAMES H; ZUZANIUK VIRGINIE; CHAPMAN JOSEFINA T; CHEN LAIYUAN; CELANESE INT CORP
摘要:A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt and palladium supported on graphite or cobalt and platinum supported on silica selectively produces ethanol in a vapor phase at a temperature of about 250° C.