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1. 发明申请

US20060188419A1 Method for production of alkali metal chromates 有权
标题翻译：碱金属铬酸盐的生产方法
公开(公告)号：US20060188419A1
公开(公告)日：2006-08-24
申请号：US10549594
申请日：2003-03-19
申请人： Zhikuan Wang , Hongbin Xu , Huiquan Li , Tao Qi , Shili Zheng
发明人： Zhikuan Wang , Hongbin Xu , Huiquan Li , Tao Qi , Shili Zheng
IPC分类号： C22B34/30
CPC分类号： C01G37/14
摘要： This invention relates to a method for producing chromates, especially for producing alkali metal chromates. The method comprises following steps: the obtaining of a mixture of alkali metal hydroxide, alkali metal chromate, and ferrous residue after the reaction of chromite ore with an oxidant in the reactor in the presence of molten salt or in aqueous solution of alkali metal hydroxide, the obtaining of a leaching slurry by leaching the reaction products with aqueous solution of alkali metal hydroxide, the separating of the primary chromate product from the leaching slurry, the obtaining of pure chromate crystal by purifying the primary chromate product. Both the primary chromate product and the pure chromate crystal can be used as the raw materials to manufacture other chromium compounds. Compared with the currently-used roasting method, the method has the advantages of decreasing the reaction temperature by about 700° C., of improving the chromium recovery rate up to nearly 100%, of minimizing the amount of the ferrous residue by not adding calcium-containing auxiliaries, and of completely eliminating the disposal problem of the chromium-containing residue and the environmental pollution due to the addition of calcium-containing auxiliaries, by using ferrous residue as the raw materials for other industries after extraction of magnesium.
摘要翻译：本发明涉及生产铬酸盐的方法，特别是生产碱金属铬酸盐。该方法包括以下步骤：在熔融盐存在下或在碱金属氢氧化物的水溶液中，在铬酸铁矿与氧化剂反应后，获得碱金属氢氧化物，碱金属铬酸盐和亚铁残留物的混合物，通过将碱金属氢氧化物水溶液浸出反应产物，从浸出浆中分离出一次铬酸盐产物，通过纯化一次铬酸盐产物得到纯的铬酸盐晶体，从而获得浸出浆料。主要的铬酸盐产物和纯铬酸盐晶体都可以用作制造其他铬化合物的原料。与目前使用的焙烧方法相比，该方法具有将反应温度降低约700℃，将铬回收率提高至近100％的优点，通过不添加钙来最小化亚铁残留量并且完全消除了含铬残渣的处理问题，以及由于添加含钙助剂而导致的环境污染，在提取镁后，以铁渣作为其他工业的原料。

2. 发明授权

US07968066B2 Method for production of alkali metal chromates 有权
标题翻译：碱金属铬酸盐的生产方法
公开(公告)号：US07968066B2
公开(公告)日：2011-06-28
申请号：US10549594
申请日：2003-03-19
申请人： Zuohu Li , Yi Zhang , Shili Zheng , Tao Qi , Huiquan Li , Hongbin Xu , Zhikuan Wang
发明人： Zuohu Li , Yi Zhang , Shili Zheng , Tao Qi , Huiquan Li , Hongbin Xu , Zhikuan Wang
IPC分类号： C01G37/14
CPC分类号： C01G37/14
摘要： This invention relates to a method for producing chromates, especially for producing alkali metal chromates. The method comprises following steps: the obtaining of a mixture of alkali metal hydroxide, alkali metal chromate, and ferrous residue after the reaction of chromite ore with an oxidant in the reactor in the presence of molten salt or in aqueous solution of alkali metal hydroxide, the obtaining of a leaching slurry by leaching the reaction products with aqueous solution of alkali metal hydroxide, the separating of the primary chromate product from the leaching slurry, the obtaining of pure chromate crystal by purifying the primary chromate product. Both the primary chromate product and the pure chromate crystal can be used as the raw materials to manufacture other chromium compounds. Compared with the currently-used roasting method, the method has the advantages of decreasing the reaction temperature by about 700° C., of improving the chromium recovery rate up to nearly 100%, of minimizing the amount of the ferrous residue by not adding calcium-containing auxiliaries, and of completely eliminating the disposal problem of the chromium-containing residue and the environmental pollution due to the addition of calcium-containing auxiliaries, by using ferrous residue as the raw materials for other industries after extraction of magnesium.
摘要翻译：本发明涉及生产铬酸盐的方法，特别是生产碱金属铬酸盐。该方法包括以下步骤：在熔融盐存在下或在碱金属氢氧化物的水溶液中，在铬酸铁矿与氧化剂反应后，获得碱金属氢氧化物，碱金属铬酸盐和亚铁残留物的混合物，通过将碱金属氢氧化物水溶液浸出反应产物，从浸出浆中分离出一次铬酸盐产物，通过纯化一次铬酸盐产物得到纯的铬酸盐晶体，从而获得浸出浆料。主要的铬酸盐产物和纯铬酸盐晶体都可以用作制造其他铬化合物的原料。与目前使用的焙烧方法相比，该方法具有将反应温度降低约700℃，将铬回收率提高至近100％的优点，通过不添加钙来最小化亚铁残留量并且完全消除了含铬残渣的处理问题，以及由于添加含钙助剂而导致的环境污染，在提取镁后，以铁渣作为其他工业的原料。

3. 发明申请

US20090045656A1 Single-Hand Height Adjustment Mechanism Of Highchair 有权
标题翻译：高脚椅单手高度调整机制
公开(公告)号：US20090045656A1
公开(公告)日：2009-02-19
申请号：US12178644
申请日：2008-07-24
申请人： Shunmin Chen , Hongbin Xu , Xiaohong Xiao
发明人： Shunmin Chen , Hongbin Xu , Xiaohong Xiao
IPC分类号： A47D1/00
CPC分类号： A47D1/004
摘要： A Single-hand height adjustment mechanism of a highchair includes an operating unit handled with a single hand, and a locking unit connected with the operating unit. The operating unit uses simple movement, such as handle pressing or button pulling, to pull adjustment wires. The adjustment wires then activate or release the locking unit. Therefore, the seat can be adjusted to higher or lower positions with the use of a single hand.
摘要翻译：高脚椅的单手高度调节机构包括用单手处理的操作单元和与操作单元连接的锁定单元。操作单元使用简单的动作，如手柄按压或按钮拉动，拉动调整线。调整线然后激活或释放锁定单元。因此，可以使用单手将座椅调整到更高或更低的位置。

4. 发明授权

US07810885B2 Single-hand height adjustment mechanism of highchair 有权
标题翻译：高脚椅单手高度调节机构
公开(公告)号：US07810885B2
公开(公告)日：2010-10-12
申请号：US12178644
申请日：2008-07-24
申请人： Shunmin Chen , Hongbin Xu , Xiaohong Xiao
发明人： Shunmin Chen , Hongbin Xu , Xiaohong Xiao
IPC分类号： A47C1/031 , A47C3/20
CPC分类号： A47D1/004
摘要： A Single-hand height adjustment mechanism of a highchair includes an operating unit handled with a single hand, and a locking unit connected with the operating unit. The operating unit uses simple movement, such as handle pressing or button pulling, to pull adjustment wires. The adjustment wires then activate or release the locking unit. Therefore, the seat can be adjusted to higher or lower positions with the use of a single hand.
摘要翻译：高脚椅的单手高度调节机构包括用单手处理的操作单元和与操作单元连接的锁定单元。操作单元使用简单的动作，如手柄按压或按钮拉动，拉动调整线。调整线然后激活或释放锁定单元。因此，可以使用单手将座椅调整到更高或更低的位置。

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