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    • 2. 发明授权
    • Pretreatment of solid, naturally-occurring carbonaceous material
    • 固体,天然碳质材料的预处理
    • US4259084A
    • 1981-03-31
    • US62809
    • 1979-08-01
    • Ronald Liotta
    • Ronald Liotta
    • C10G1/00C10G1/08C10L9/02
    • C10G1/086C10G1/00C10G1/006
    • Solid, naturally-occurring carbonaceous materials such as coal, lignite, peat and the like are treated by oxygen-alkylation or oxygen-acylation employing a phase transfer reaction under mild conditions. The treated coal may then be liquefied, gasified, pyrolyzed, solubilized or otherwise further processed to obtain useful products therefrom. For example, liquid products derived from coal so treated are more compatible with petroleum products and evidence lower viscosity and boiling range than liquid products not so treated. The solubility of coal bottoms is increased in common organic solvents as compared with coal bottoms derived from untreated coal.The phase transfer reaction chemically alters phenolic and carboxylic functional substituents. These two very polar functional groups are converted to relatively non-polar ethers and esters, respectively. The O-alkylation or O-acylation is carried out in a binary liquid phase solution (organic and water phases with a solid phase suspended in the medium). A quaternary ammonium or phosphonium salt is reacted with alkali metal or alkaline earth metal base to produce the corresponding quaternary ammonium or phosphonium base. This quaternary base is non-nucleophilic and readily removes the phenolic and carboxylic protons but does little else to the coal structures. After the removal of weakly acidic protons by the base, the phenoxides and carboxylates which are produced then undergo O-alkylation or O-acylation.
    • 通过在温和条件下进行相转移反应的氧 - 烷基化或氧酰化处理固体,天然存在的碳质材料如煤,褐煤,泥炭等。 然后处理的煤可以被液化,气化,热解,溶解或以其它方式进一步加工,从而获得有用的产物。 例如,如此处理的来自煤的液体产品与石油产品更相容,并且比未经处理的液体产品具有更低的粘度和沸程。 与来自未处理煤的煤底物相比,普通有机溶剂中煤底物的溶解度增加。 相转移反应化学改变酚和羧基官能取代基。 这两个非常极性的官能团分别转化成相对非极性的醚和酯。 O-烷基化或O-酰化在二元液相溶液(固相悬浮于介质中的有机相和水相)中进行。 使季铵盐或鏻盐与碱金属或碱土金属的碱反应生成相应的季铵或鏻碱。 这种四元碱是非亲核的,容易除去酚和羧基质子,但对煤结构几乎没有其他的。 在通过碱除去弱酸性质子后,所生产的苯氧基和羧酸酯经历O-烷基化或O-酰化。
    • 8. 发明授权
    • Treatment of coal to increase yields and improve physical
characteristics of coal liquefaction distillates and bottoms
    • 煤的处理提高产量,改善煤液化馏出物和塔底物的物理特性
    • US4259168A
    • 1981-03-31
    • US69064
    • 1979-08-23
    • Ronald Liotta
    • Ronald Liotta
    • C10G1/00C10G1/08C10B57/04
    • C10G1/00C10G1/006C10G1/086
    • Treatment of weakly acidic protons in coal by oxygen-alkylation or oxygen-acylation employing a phase transfer reaction under mild conditions increases the yield, lowers the viscosity and boiling ranges of coal liquefaction distillates and renders these coal liquids more compatible with petroleum liquids. The process also improves the compatibility with petroleum liquids of the coal liquefaction bottoms and their solubility in common organic solvents.The phase transfer reaction chemically alters phenolic and carboxylic functional substituents. These two very polar functional groups are converted to relatively non-polar ethers and esters, respectively. The O-alkylation or O-acylation is carried out in a binary liquid phase solution (organic and water phases with a solid phase suspended in the medium). A quaternary ammonium or phosphonium salt is reacted with alkali or alkaline earth base (caustic) to produce the corresponding quaternary ammonium or phosphonium base (an example of a phase transfer reagent). This quaternary base is non-nucleophilic and readily removes the phenolic and carboxylic protons, but does little else to the coal structures. After the removal of the weakly acidic protons by the quaternary base, the phenoxides and carboxylates which are produced then under O-alkylation or O-acylation. The alkylating or acylating agent comprises a carbon-bearing functional group and a displaceable leaving group.
    • 通过在温和条件下进行相转移反应,通过氧烷基化或氧酰化处理煤中的弱酸性质子提高了产率,降低了煤液化馏出物的粘度和沸程,并使这些煤液体与石油液体更相容。 该方法还提高了与液化石油液体相关的煤液化塔底物及其在普通有机溶剂中的溶解度。 相转移反应化学改变酚和羧基官能取代基。 这两个非常极性的官能团分别转化成相对非极性的醚和酯。 O-烷基化或O-酰化在二元液相溶液(固相悬浮于介质中的有机相和水相)中进行。 使季铵盐或鏻盐与碱金属或碱土碱(苛性碱)反应生成相应的季铵或鏻碱(相转移试剂的实例)。 这种四碱基是非亲核的并且容易除去酚和羧基质子,但对煤结构几乎没有其他的。 在通过季碱去除弱酸性质子后,然后在O-烷基化或O-酰化下产生的苯氧化物和羧酸盐。 烷基化或酰化剂包括含碳官能团和可置换的离去基团。
    • 10. 发明授权
    • Treatment of coal liquids
    • 煤液处理
    • US4259173A
    • 1981-03-31
    • US069066
    • 1979-08-23
    • Ronald LiottaMartin L. Gorbaty
    • Ronald LiottaMartin L. Gorbaty
    • C10G1/00
    • C10G1/00C10G1/002C10G1/006
    • Coal liquids are rendered compatible with petroleum liquids by selective oxygen alkylation or oxygen acylation of weakly acidic protons such as phenolic and carboxylic functionalities by means of a phase transfer reaction. Phenolic and carboxylic functional substituents, which are very polar, are converted to relatively non-polar ethers and esters, respectively. The O-alkylation or O-acylation is carried out in a binary liquid phase solution (organic/water). A quaternary ammonium or phosphonium salt is reacted with alkali or alkaline earth base (caustic) to produce the corresponding quaternary ammonium or phosphonium base (an example of a phase transfer reagent). This quaternary base is non-nucleophilic and readily removes the phenolic and carboxylic protons, but does little else to the coal liquid molecules. After the removal of the weakly acidic protons by the quaternary base, the phenoxides and carboxylates which are produced then undergo O-alkylation or O-acylation. The alkylating or acylating agent comprises a carbon-bearing functionality and a displaceable leaving group. The O-alkylation or O-acylation reduces hydrogen bonding and therefore polarity, thereby rendering coal liquids more compatible with petroleum liquids.
    • 煤液体通过相转移反应的选择性氧烷基化或弱酸性质子如酚和羧酸官能团的氧酰化而与石油液体相容。 非常极性的酚和羧酸官能性取代基分别转化为相对非极性的醚和酯。 O-烷基化或O-酰化在二元液相溶液(有机/水)中进行。 使季铵盐或鏻盐与碱金属或碱土碱(苛性碱)反应生成相应的季铵或鏻碱(相转移试剂的实例)。 这种四元碱是非亲核的并且容易地除去酚和羧基质子,但对煤液分子也没有什么作用。 在通过季碱去除弱酸性质子后,所生产的苯氧基和羧酸酯经历O-烷基化或O-酰化。 烷基化或酰化剂包含含碳官能团和可置换的离去基团。 O-烷基化或O-酰化降低氢键并因此降低极性,从而使煤液体与石油液体更相容。