Flotation of non-sulfidic ore with a glycosidic collector
    6.
    发明授权
    Flotation of non-sulfidic ore with a glycosidic collector 失效
    用硫酸盐收集器漂浮非硫酸钙

    公开(公告)号:US5108585A

    公开(公告)日:1992-04-28

    申请号:US481808

    申请日:1990-02-20

    摘要: A collecting agent and method for the recovery of valuable minerals in the froth flotation beneficiation of non-sulfidic ores is provided. The collecting agent is selected from alkyl glycosides, alkenyl glycosides and mixtures thereof. Preferably, the collecting agent is a combination of an alkyl glycoside, an alkenyl glycoside and mixtures thereof with a non-thio ionizable surfactant collector. Glycosides containing from about 2 to 8 glycoside residues may be used. The alkyl and alkenyl components of these glycosides may be linear or branched, may contain from about 2 to 18 carbon atoms and may optionally contain a hydroxyl group or an ether linkage.

    摘要翻译: 提供了一种用于在非硫化矿石的泡沫浮选精选中回收有价值矿物的收集剂和方法。 收集剂选自烷基糖苷,烯基糖苷及其混合物。 优选地,收集剂是烷基糖苷,烯基糖苷及其与非硫代可离子化表面活性剂收集器的混合物的组合。 可以使用含有约2至8个糖苷残基的糖苷。 这些糖苷的烷基和烯基组分可以是直链或支链的,可以含有约2至18个碳原子,并且可任选地含有羟基或醚键。

    Process for the preparation of spice extracts
    9.
    发明授权
    Process for the preparation of spice extracts 失效
    香料提取物的制备方法

    公开(公告)号:US4490398A

    公开(公告)日:1984-12-25

    申请号:US337388

    申请日:1982-01-06

    IPC分类号: A23L27/10 B01D11/02 A23L1/221

    CPC分类号: B01D11/0203 A23L27/11

    摘要: This invention is directed to a process for the production of extracts from spices in two stages by extraction with a non-toxic gas as solvent, the improvement which comprises in a first stage extracting from the spices essential oils functioning as aroma components by contacting the spices with liquid solvent, at a pressure in the supercritical range and a temperature in the subcritical range, separating the solvent from the spice, evaporating the solvent and separating essential oils, and in a second stage extracting from the spices the portions acting as flavor carriers by contacting the spices from the first stage with gaseous solvent, at a pressure and a temperature both in the supercritical range, separating the gaseous solvent from the spice, reducing the pressure and temperature, and separating the flavor carriers from the gaseous solvent.

    摘要翻译: 本发明涉及一种通过以无毒气体作为溶剂提取两步生产香料提取物的方法,其改进包括在香料中通过接触香料从香料香精中提取作为芳香成分的精油 在液体溶剂中,在超临界范围的压力和亚临界范围的温度下,将溶剂与香料分离,蒸发溶剂并分离精油,并在第二阶段从香料中提取作为香料载体的部分 在超临界范围的压力和温度下,将来自第一阶段的香料与气态溶剂接触,将气态溶剂与香料分离,降低压力和温度,并将风味载体与气态溶剂分离。