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熱門關鍵詞： 工业级氯化氫 化学级氯化氫 高纯级氯化氫 电子级氯化氫 硫化氫氣體 高純氯氣 配套設備

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工業生産鹽酸脫析法

返回打印发布时间：2014/3/15 点击：11580

随着盐酸脱析法的逐步推广，副产酸脱析生产氯化氫的工艺已广泛应用于生产。它是通过稀酸在绝热吸收塔吸收有机氯化物生产中的副产氯化氫，提浓后，进入解吸塔脱析出高浓氯化氫气体。此种方法生产的氯化氫气体纯度在99．99~(质量分数)以上。

其工艺流程为：副产氯化氫经填料式绝热吸收塔与稀酸泵送来的20％稀盐酸逆流接触，通过绝热吸收，将副产氯化氫制成盐酸。由塔底可获得31％以上的浓酸，

经石墨换热器预热稀酸后进^浓酸槽，由浓酸泵送往填料式或板式解吸塔。解吸塔底排出的物料经与之相连的再沸器，借管外通人的蒸汽加热，使氯化氫和少量水蒸气蒸发与塔顶向下流动的浓盐酸进行热量和质量交换，将酸中的氯化氫气脱吸出去。该氯化氫气体由塔顶进^石墨一级冷却器澉管外冷却水冷却至室温，再进入石墨二级冷却器，用冷冻盐水冷却到12～18℃，并经酸雾捕集器除去夹带的酸雾。解析塔底部出来的稀酸是体积分数为20％--22％的氯化氫与水的恒沸物，经稀酸冷却器或与浓酸热交换后，冷却至4O℃以下，进入稀酸f曹，由稀酸泵送人吸收塔再吸收制取浓酸。

我公司长期供应各种规格高品质氯化氫产品，并提供氯化氫专用配套设施、设备、阀门、减压器，并提供优质技术服务和售后。

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Specifications for engineering work are a most difficult kind of composition and may be made long, tedious, and irrelevant, or concise and lucid. From a quite small garden close to the palace a bronze gate with three medallions of lilies in high relief, of marvellous workmanship, opens on the Pearl Mosque, exquisitely white, at the end of its forecourt of immaculate pavement enclosed by a marble balustrade. Three polished and shining domes are supported by columns of snow made of a hard white marble, scarcely broken by [Pg 218]ornament, and carrying a roof hollowed into three vaults. The rings are still to be seen on the marble walls outside, to which, when the great Mogul came to prayer, curtains were attached made of gold net and spangled with diamonds and pearls. Sandy’s birthday dawned hot, but clear, with a good, steady south wind blowing. “Jeff calls it a ‘jinx’—a ‘hoodoo’,” responded Dick. “But the chef would discover it—they couldn’t be left there!” She was sitting in her room, sewing. Of late she had become domesticated, and she was fading under it. He had seen it already, and he saw it more plainly than ever just now. She looked up and smiled. Her smile had always been one of her greatest charms, because it was rare and very sweet. "Jack," she greeted him, "what have you done with the bread knife you took with you, dear? I have been lost without it." "Neither," drawled Cairness. "But Mrs. Lawton, here, has been good enough to tell me that you have known the exact truth about the Kirby massacre ever since a week after its occurrence, and yet you have shielded the criminals and lied in the papers. Then, too," he went on, "though there is no real proof against you, and you undoubtedly did handle it very well, I know that it was you that set Lawton on to try and bribe for the beef contract. You see your friends are unsafe, Mr. Stone, and I have been around yours and Lawton's ranches enough to have picked up a few damaging facts." The prince found in the Opposition in England the most unfortunate fosterers of his unfilial temper. Pulteney, Wyndham, Chesterfield, Carteret, Cobham, and, worst of all, Bolingbroke, became his associates, and the frequenters of his house. Fast ripening into a pattern of unfilial popularity under such influences, possessing some accomplishments, and a desire to stand well with the people, he married in April, 1736, Augusta of Saxe-Gotha, a princess of so much beauty and good sense, as might have reclaimed many a nature; who seems to have at least won the heart of her husband from his former romantic passion. It was an ominous circumstance, however, that the address of congratulation on this occasion was moved, not by the king's own Ministers, but by the king's own Opposition. Pulteney was the mover, and it was supported by two young men who that evening made their first speeches, and in them burst suddenly forth with that splendour which was destined to grow transcendent through many years. They were Pitt, afterwards Lord Chatham, and Lord Lyttelton. The Deacon had just remembered that he had not seen that individual for some little time, and looked around for him with some concern. It was well that he did. Shorty had come across the haversack that the Deacon had brought, and it awakened all his old predatory instincts, sharpened, if anything, by his feebleness. Without saying a word to any body, he had employed the time while the Surgeon and Deacon were in conversation in preparing one of his customary gorges after a long, hard march. He nearly succeeded. 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