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    • 2. 发明申请
    • METHOD FOR PREPARING BARIUM TITANATE
    • 制备钛酸钡的方法
    • US20120258036A1
    • 2012-10-11
    • US13508620
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01F11/02
    • C01G23/006C01P2004/32C01P2004/51C01P2004/61C01P2006/80
    • Provided is a method for preparing barium titanate, which comprises: dissolving BaCl2.2H2O into TiCl4 solution to prepare Ba—Ti mixed solution with a Ba/Ti mol ratio of 1:1; adding ammonia and ammonium bicarbonate into deionized water to prepare synthetic agent with a NH4OH/NH4HCO3 mol ratio of 5:1; adding Ba—Ti mixed solution and synthesis agent into a reactor for synthesis to obtain a slurry; pressure filtering, thermal washing and then pressure filtering, to obtain a filter cake; calcining the filter cake for 1 hour at 590-610° C., followed by further calcining for 2 hours at 700-950° C.; crushing the obtained solid produced by a crusher, and thereby obtaining barium titanate. The obtained barium titanate is spherical, and has a narrower particle size distribution. The method reduces costs.
    • 提供制备钛酸钡的方法,其包括:将BaCl 2·2H 2 O溶解在TiCl 4溶液中以制备Ba / Ti摩尔比为1:1的Ba-Ti混合溶液; 将氨和碳酸氢铵加入去离子水中制备NH4OH / NH4HCO3摩尔比为5:1的合成试剂; 将Ba-Ti混合溶液和合成剂加入到合成反应器中以获得浆料; 压滤,热洗然后进行压滤,得到滤饼; 在590-610℃下煅烧滤饼1小时,然后在700-950℃进一步煅烧2小时。 粉碎由粉碎机得到的固体,得到钛酸钡。 得到的钛酸钡为球状,粒径分布较窄。 该方法降低成本。
    • 3. 发明授权
    • Method for preparing barium titanate
    • 制备钛酸钡的方法
    • US09327995B2
    • 2016-05-03
    • US13508620
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01F11/02C01G23/00
    • C01G23/006C01P2004/32C01P2004/51C01P2004/61C01P2006/80
    • Provided is a method for preparing barium titanate, which comprises: dissolving BaCl2.2H2O into TiCl4 solution to prepare Ba—Ti mixed solution with a Ba/Ti mol ratio of 1:1; adding ammonia and ammonium bicarbonate into deionized water to prepare synthetic agent with a NH4OH/NH4HCO3 mol ratio of 5:1; adding Ba—Ti mixed solution and synthesis agent into a reactor for synthesis to obtain a slurry; pressure filtering, thermal washing and then pressure filtering, to obtain a filter cake; calcining the filter cake for 1 hour at 590-610° C., followed by further calcining for 2 hours at 700-950° C.; crushing the obtained solid produced by a crusher, and thereby obtaining barium titanate. The obtained barium titanate is spherical, and has a narrower particle size distribution. The method reduces costs.
    • 提供制备钛酸钡的方法,其包括:将BaCl 2·2H 2 O溶解在TiCl 4溶液中以制备Ba / Ti摩尔比为1:1的Ba-Ti混合溶液; 将氨和碳酸氢铵加入去离子水中制备NH4OH / NH4HCO3摩尔比为5:1的合成试剂; 将Ba-Ti混合溶液和合成剂加入到合成反应器中以获得浆料; 压滤,热洗然后进行压滤,得到滤饼; 在590-610℃下煅烧滤饼1小时,然后在700-950℃进一步煅烧2小时。 粉碎由粉碎机得到的固体,得到钛酸钡。 得到的钛酸钡为球状,粒径分布较窄。 该方法降低成本。
    • 4. 发明授权
    • Method for preparing manganese sulfate monohydrate by desulfurizing fume with middle-low grade manganese dioxide ore
    • 通过中低级二氧化锰矿石烟气脱硫制备硫酸锰一水合物的方法
    • US09018119B2
    • 2015-04-28
    • US13514397
    • 2010-07-20
    • Zhiguang JiangDong HuaFei Wu
    • Zhiguang JiangDong HuaFei Wu
    • B01J38/48B01J23/32C01G45/00C22B11/00C01G45/10B01D53/50B01D53/80
    • C01G45/10B01D53/50B01D53/80B01D2251/60
    • A method for preparing manganese sulfate monohydrate by desulfurizing fume with middle-low grade manganese dioxide ore, which includes: preparing a slurry by using middle-low grade manganese dioxide ore powder, putting sulfur-containing fume in an absorbing device and controlling gas velocity and gas-liquid ratio, and then adding manganese dioxide slurry and controlling the slurry to backwards flow relative to the sulfur-containing fume, discharging the desulfurized fume from the absorbing device, pressure-filtering and separating the slurry discharged from the absorbing device, recycling the mother liquor to the absorbing device, and continuing the recycling operation until the manganese sulfate in the mother liquor is >=200 g/l, the obtained filter cake at 60-70° C., adjusting pH value of the clear solution obtained to 2-4, adding manganese sulfide under agitation at 25-95° C., and removing impurities, continuing agitating, pressure-filtering and separating, vaporizing the obtained clear filtrate, and obtaining manganese sulfate monohydrate after drying in the air stream.
    • 一种通过中低级二氧化锰矿石脱硫制备硫酸锰一水合物的方法,其中包括:通过使用中低品位二氧化锰矿粉制备浆料,将含硫烟雾放入吸收装置中,控制气体速度, 气液比,然后加入二氧化锰浆料,控制浆料相对于含硫烟气向后流动,从吸收装置排出脱硫烟气,对从吸收装置排出的浆料进行压滤和分离,循环利用 母液进入吸收装置,继续回收操作,直到母液中的硫酸锰为> 200g / l,将得到的滤饼在60-70℃下,将得到的澄清溶液的pH值调节至2 -4,在25-95℃的搅拌下加入硫化锰,除去杂质,继续搅拌,加压过滤分离,蒸发所得的 澄清滤液,并在空气流中干燥后得到一水合硫酸锰。
    • 5. 发明申请
    • METHOD FOR PREPARING MANGANESE SULFATE MONOHYDRATE BY DESULFURIZING FUME WITH MIDDLE-LOW GRADE MANGANESE DIOXIDE ORE
    • 通过用低分子量二氧化锰除锰来制备锰硫酸盐单硫酸盐的方法
    • US20120328495A1
    • 2012-12-27
    • US13514397
    • 2010-07-20
    • Zhiguang JiangDong HuaFei Wu
    • Zhiguang JiangDong HuaFei Wu
    • C22B47/00
    • C01G45/10B01D53/50B01D53/80B01D2251/60
    • A method for preparing manganese sulfate monohydrate by desulfurizing fume with middle-low grade manganese dioxide ore, which includes: preparing a slurry by using middle-low grade manganese dioxide ore powder, putting sulfur-containing fume in an absorbing device and controlling gas velocity and gas-liquid ratio, and then adding manganese dioxide slurry and controlling the slurry to backwards flow relative to the sulfur-containing fume, discharging the desulfurized fume from the absorbing device, pressure-filtering and separating the slurry discharged from the absorbing device, recycling the mother liquor to the absorbing device, and continuing the recycling operation until the manganese sulfate in the mother liquor is >=200 g/l, the obtained filter cake at 60-70° C., adjusting pH value of the clear solution obtained to 2-4, adding manganese sulfide under agitation at 25-95° C., and removing impurities, continuing agitating, pressure-filtering and separating, vaporizing the obtained clear filtrate, and obtaining manganese sulfate monohydrate after drying in the air stream.
    • 一种通过中低级二氧化锰矿石脱硫制备硫酸锰一水合物的方法,其中包括:通过使用中低品位二氧化锰矿粉制备浆料,将含硫烟雾放入吸收装置中,控制气体速度, 气液比,然后加入二氧化锰浆料,控制浆料相对于含硫烟气向后流动,从吸收装置排出脱硫烟气,对从吸收装置排出的浆料进行压滤和分离,循环利用 母液进入吸收装置,继续回收操作,直到母液中的硫酸锰为> 200g / l,将得到的滤饼在60-70℃下,将得到的澄清溶液的pH值调节至2 -4,在25-95℃的搅拌下加入硫化锰,除去杂质,继续搅拌,加压过滤分离,蒸发所得的 澄清滤液,并在空气流中干燥后得到一水合硫酸锰。
    • 6. 发明授权
    • Method for preparing manganese sulfate monohydrate
    • 硫酸锰一水合物的制备方法
    • US08480997B2
    • 2013-07-09
    • US13581511
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01B17/96
    • C01G45/10C01P2006/80
    • Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) adding equimolar BaS or SrS solution into manganese sulfate solution to carry out reaction fully, and separating and washing the obtained solid; (2) mixing the solid with deionized water to prepare a slurry, dissolving the slurry with concentrated sulfuric acid, and separating solid from liquid to obtain MnSO4 solution; (3) adding proper amount of hydrogen peroxide to the MnSO4 solution, heating to boiling, adjusting the pH value of the solution within 5-6, evaporation the filtrate after a precise filtration, and crystallizing and drying to obtain MnSO4 H2O product. Manganese sulfate monohydrate can be produced at high yield in a cost-efficient manner by this method.
    • 提供了一种制备硫酸锰一水合物的方法,包括以下步骤:(1)将等摩尔的BaS或SrS溶液加入硫酸锰溶液中进行充分的反应,分离和洗涤所得固体; (2)将固体与去离子水混合以制备浆料,用浓硫酸溶解浆料,并从液体中分离固体得到MnSO 4溶液; (3)向MnSO4溶液中加入适量的过氧化氢,加热至沸腾,调节溶液的pH值至5-6,精确过滤后蒸发滤液,结晶并干燥得到MnSO 4 H 2 O产物。 通过该方法,可以以高成本高效率的方式生产硫酸锰一水合物。
    • 7. 发明授权
    • Method for preparing manganese sulfate monohydrate
    • 硫酸锰一水合物的制备方法
    • US08747802B2
    • 2014-06-10
    • US13578708
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01B17/96C01G45/10
    • C01G45/10
    • Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) reacting MnO with (NH4)2SO4 solution under heat, and separating solid from liquid after reaction 2) determining the concentration of MnSO4 in the resulting solution of step 1), adding equimolar ammonium sulfide solution thereto to carry out reaction under agitation, separating solid from liquid after reaction, and then washing solid phase: 3) dissolving the solid phase with concentrated sulfuric acid, adding hydrogen peroxide to the obtained solution, heating to boiling, adjusting the pH value of the solution to 5-6, removing the solid phase through precise filtration, evaporating and oven drying the filtrate to obtain MnSO4.H2O product. The impurities are separated away and the amount of byproducts is reduced by this method, and the yield of manganese sulfate monohydrate is improved.
    • 提供了一种制备硫酸锰一水合物的方法,其包括以下步骤:(1)在加热下使MnO与(NH4)2SO4溶液反应,并在反应后将液体与液体分离2)确定所得到的步骤溶液中的MnSO 4浓度 1),加入等摩尔硫化铵溶液进行搅拌反应,反应后将固体与液体分离,然后洗涤固相:3)用浓硫酸溶解固相,向得到的溶液中加入过氧化氢,加热至 沸腾,将溶液的pH值调节至5-6,通过精确过滤除去固相,蒸发并烘箱干燥滤液,得到MnSO 4·H 2 O产物。 杂质被分离出来,通过该方法减少副产物的量,提高了一水硫酸锰的产率。
    • 8. 发明申请
    • METHOD FOR PREPARING MANGANESE SULFATE MONOHYDRATE
    • 制备硫酸锰单体的方法
    • US20120321546A1
    • 2012-12-20
    • US13581511
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01G45/10
    • C01G45/10C01P2006/80
    • Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) adding equimolar BaS or SrS solution into manganese sulfate solution to carry out reaction fully, and separating and washing the obtained solid; (2) mixing the solid with deionized water to prepare a slurry, dissolving the slurry with concentrated sulfuric acid, and separating solid from liquid to obtain MnSO4 solution; (3) adding proper amount of hydrogen peroxide to the MnSO4 solution, heating to boiling, adjusting the pH value of the solution within 5-6, evaporation the filtrate after a precise filtration, and crystallizing and drying to obtain MnSO4 H2O product. Manganese sulfate monohydrate can be produced at high yield in a cost-efficient manner by this method.
    • 提供了一种制备硫酸锰一水合物的方法,包括以下步骤:(1)将等摩尔的BaS或SrS溶液加入硫酸锰溶液中进行充分的反应,分离和洗涤所得固体; (2)将固体与去离子水混合以制备浆料,用浓硫酸溶解浆料,并从液体中分离固体得到MnSO 4溶液; (3)向MnSO4溶液中加入适量的过氧化氢,加热至沸腾,调节溶液的pH值至5-6,精确过滤后蒸发滤液,结晶并干燥得到MnSO 4 H 2 O产物。 通过该方法,可以以高成本高效率的方式生产硫酸锰一水合物。
    • 9. 发明申请
    • METHOD FOR PREPARING MANGANESE SULFATE MONOHYDRATE
    • 制备硫酸锰单体的方法
    • US20120315214A1
    • 2012-12-13
    • US13578708
    • 2010-07-20
    • Zhiguang JiangDong Hua
    • Zhiguang JiangDong Hua
    • C01G45/10
    • C01G45/10
    • Provided is a method for preparing manganese sulfate monohydrate, which comprises the following steps: (1) reacting MnO with (NH4)2SO4 solution under heat, and separating solid from liquid after reaction; 2) determining the concentration of MnSO4 in the resulting solution of step 1), adding equimolar ammonium sulfide solution thereto to carry out reaction under agitation, separating solid from liquid after reaction, and then washing solid phase; 3) dissolving the solid phase with concentrated sulfuric acid, adding hydrogen peroxide to the obtained solution, heating to boiling, adjusting the pH value of the solution to 5-6, removing the solid phase through precise filtration, evaporating and oven drying the filtrate to obtain MnSO4.H2O product. The impurities are separated away and the amount of byproducts is reduced by this method, and the yield of manganese sulfate monohydrate is improved.
    • 提供一种制备硫酸锰一水合物的方法,其包括以下步骤:(1)在加热下使MnO与(NH4)2SO4溶液反应,并在反应后从液体中分离出固体; 2)测定所得到的步骤1)溶液中的MnSO4浓度,加入等摩尔硫化铵溶液进行搅拌反应,反应后将固体与液体分离,然后洗涤固相; 3)用浓硫酸溶解固相,向所得溶液中加入过氧化氢,加热至沸腾,将溶液的pH值调节至5-6,通过精确过滤除去固相,蒸发并干燥滤液至 获得MnSO4.H2O产品。 杂质被分离出来,通过该方法减少副产物的量,提高了一水硫酸锰的产率。