公开(公告)号：US4505786A

公开(公告)日：1985-03-19

申请号：US520193

申请日：1983-08-08

申请人： Albert A. Birkmaier ,  Gary A. Harpell ,  Bruce E. Kurtz ,  Gordhanbhai N. Patel ,  Rustom P. Poncha ,  Adam L. Skovrinski ,  James M. Lesco

发明人： Albert A. Birkmaier ,  Gary A. Harpell ,  Bruce E. Kurtz ,  Gordhanbhai N. Patel ,  Rustom P. Poncha ,  Adam L. Skovrinski ,  James M. Lesco

IPC分类号： C23C18/22 ,  H05K3/18 ,  H05K3/38 ,  C25D5/56

CPC分类号： C23C18/22 ,  H05K3/181 ,  H05K3/381

摘要： This invention relates to a process for conditioning the surfaces of natural and synthetic plastic materials for electroless plating of a metal coating thereon by exposing such materials to an atmosphere comprising an effective amount of ozone and thereafter contacting said exposed materials with an effective amount of a conditioning solvent, such as an aqueous solution of sodium, potassium or lithium hydroxide.

摘要翻译： 本发明涉及一种用于通过将这些材料暴露于包含有效量的臭氧的气氛中，然后使所述暴露的材料与有效量的调理剂接触来调节天然和合成塑料材料的表面以使其金属涂层化学镀的方法 溶剂，例如钠，钾或氢氧化锂的水溶液。

公开(公告)号：US4286967A

公开(公告)日：1981-09-01

申请号：US163848

申请日：1980-06-27

申请人： Elwood F. Booth, Jr. ,  Rustom P. Poncha

发明人： Elwood F. Booth, Jr. ,  Rustom P. Poncha

IPC分类号： C01D7/37 ,  C30B9/02

CPC分类号： C01D7/37

摘要： A process for the production of low organic, low silica, anhydrous sodium carbonate comprising (a) calcining raw trona ore to produce crude sodium carbonate containing soluble and insoluble impurities, (b) admixing said crude sodium carbonate with a substantially saturated sodium carbonate solution to produce sodium carbonate monohydrate crystals containing insolubles and an impure sodium carbonate solution; (c) separating these monohydrate crystals and impurities; (d) dissolving the monohydrate crystals to produce a substantially saturated sodium carbonate solution and insolubles; (e) separating said solution from the insolubles; (f) evaporative crystallization of the separated saturated sodium carbonate solution to produce pure sodium carbonate monohydrate crystals; (g) optionally, subjecting the crystals recovered in step (f) to steps (d-f) once, but no more than once; (h) heating said monohydrate crystals to obtain low organic, low silica, anhydrous sodium carbonate product particles; and (i) optionally, repeating the sequence defined by steps (b-h) once, but no more than once is disclosed.

摘要翻译： 一种生产低有机，低二氧化硅，无水碳酸钠的方法，包括（a）煅烧生天然碱矿石以生产含有可溶性和不溶性杂质的粗碳酸钠，（b）将所述粗碳酸钠与基本上饱和的碳酸钠溶液混合， 产生含有不溶物的碳酸钠一水合物晶体和不纯的碳酸钠溶液; （c）分离这些一水合物晶体和杂质; （d）溶解一水合物晶体以产生基本饱和的碳酸钠溶液和不溶物; （e）将所述溶液与不溶物分离; （f）分离的饱和碳酸钠溶液的蒸发结晶以产生纯的碳酸钠一水合物晶体; （g）任选地，使步骤（f）中回收的晶体经历步骤（d-f）一次，但不超过一次; （h）加热所述一水合物晶体以获得低有机，低二氧化硅，无水碳酸钠产品颗粒; 和（i）任选地，重复由步骤（b-h）定义的序列一次，但不超过一次。

公开(公告)号：US4151261A

公开(公告)日：1979-04-24

申请号：US587579

申请日：1975-06-17

申请人： Rustom P. Poncha ,  Alan B. Gancy

发明人： Rustom P. Poncha ,  Alan B. Gancy

IPC分类号： C01D7/00

CPC分类号： C01D7/00

摘要： A method for dissolving calcined trona containing calcareous impurities, to obtain an aqueous sodium carbonate solution having low calcium content involves contacting calcined trona in countercurrent flow, desirably under specific temperature conditions, with dilute sodium carbonate solution. Sodium carbonate solutions thus obtained have reduced tendency to form calcium deposits in processing equipment.

摘要翻译： 用于溶解含有钙质杂质的煅烧天然碱的方法，以获得具有低钙含量的碳酸钠水溶液，包括将煅烧的天然碱与特定温度条件下的逆流流动与稀碳酸钠溶液接触。 由此获得的碳酸钠溶液具有减少在加工设备中形成钙沉积物的倾向。

公开(公告)号：US4115525A

公开(公告)日：1978-09-19

申请号：US356663

申请日：1973-05-02

申请人： Alan B. Gancy ,  Rustom P. Poncha

发明人： Alan B. Gancy ,  Rustom P. Poncha

IPC分类号： C01D7/14 ,  C01D7/35 ,  C01D7/37

CPC分类号： C01D7/14 ,  C01D7/35

摘要： Conversion of sodium sesquicarbonate particles to particles of lower bulk density, as low as 180 grams per liter, with high absorption property capable of absorbing as much as 40 percent of wetting agent and with good resistance to breakage and attrition and with mild alkalinity of less than 9.9 pH to a pH approaching 9.4 without loss of particulate identity, by passing the particles through a reaction zone at a temperature of 70.degree. to 105.degree. C. and introducing a gas mixture containing 15-85 percent CO.sub.2 and 15-80 percent water vapor and maintaining the gas mixture in contact with the particles until the particles contain at least 10 percent Wegscheider's Salt and continuing the reaction to produce particles containing 20 to in excess of 95 percent Wegscheider's Salt with a water content of less than 12 percent, said particles being characterized by being in needle-form which in turn are composed of randomly oriented Wegscheider's Salt micro needles.

摘要翻译： 将倍半碳酸钠颗粒转化为低体积密度的颗粒，低至180克/升，具有高吸收性能，能够吸收多达40％的润湿剂，并且具有良好的耐断裂和磨损，并且具有小于等于 通过使颗粒通过反应区，在70至105℃的温度下，将pH值调节至接近9.4的pH，而不损失颗粒状态，并引入含有15-85％CO 2和15-80％水蒸气的气体混合物 并保持气体混合物与颗粒接触，直到颗粒含有至少10％的Wegscheider's Salt，并继续反应以产生含水量低于12％的20至超过95％Wegscheider's盐的颗粒，所述颗粒为 其特征在于呈针状，其又由随机取向的Wegscheider的盐微针组成。

公开(公告)号：US4039618A

公开(公告)日：1977-08-02

申请号：US587584

申请日：1975-06-17

申请人： Alan B. Gancy ,  Rustom P. Poncha

发明人： Alan B. Gancy ,  Rustom P. Poncha

IPC分类号： C01D7/00

CPC分类号： C01D7/00

摘要： In the process for making sodium carbonate from trona, the soluble silicate content of crystallizer mother liquor from which sodium carbonate precursor crystals are obtained by evaporative crystallization is reduced by digesting the mother liquor at elevated temperature in the presence of certain activated insolubles, followed by separating the insolubles from the digested mother liquor. These activated insolubles are obtained by calcining crushed trona, dissolving the calcined trona in an aqueous medium to obtain a solution of sodium carbonate containing insolubles, separating the insolubles and activating them by calcination at elevated temperature.

摘要翻译： 在从天然碱制造碳酸钠的方法中，通过蒸发结晶获得碳酸钠前体晶体的结晶器母液的可溶性硅酸盐含量通过在某些活化的不溶物存在下在高温下消化母液而降低，然后分离 消化的母液中的不溶物。 这些活化的不溶物通过煅烧压碎的天然碱，将煅烧的天然碱溶解在水性介质中以获得含有不溶物的碳酸钠溶液，分离不溶物并通过在升高的温度下煅烧来活化而得到。

公开(公告)号：US4021525A

公开(公告)日：1977-05-03

申请号：US587577

申请日：1975-06-17

申请人： Rustom P. Poncha

发明人： Rustom P. Poncha

IPC分类号： C01D7/37 ,  C01D7/00

CPC分类号： C01D7/37

摘要： In the process of making sodium carbonate from trona involving the steps of crushing the trona, calcining the crushed trona, dissolving the calcined trona to obtain a solution comprising sodium carbonate and insoluble impurities contaminated by soluble silicates and soluble carbonaceous matter, contamination of the sodium carbonate solution with soluble silicates is reduced by the improvement which comprises calcining the crushed trona at temperature of 200.degree. C. to 600.degree. C. in the presence of an additive selected from the group consisting of aluminum oxide and bauxite. When the trona is calcined in the presence of aluminum oxide or bauxite at temperatures of 350.degree. to 600.degree. C., then the sodium carbonate solution is low in both soluble silicate as well as carbonaceous matter.

摘要翻译： 在从天然碱制造碳酸钠的过程中，包括粉碎天然碱的步骤，煅烧破碎的天然碱，将煅烧的天然碱溶解，得到包含可溶性硅酸盐和可溶性碳质物质污染的碳酸钠和不溶性杂质的溶液，碳酸钠的污染 可溶性硅酸盐的溶液通过改进进行降低，包括在选自氧化铝和铝土矿的添加剂的存在下，在200℃至600℃的温度下煅烧压碎的天然碱。 当在350℃至600℃的温度下，在氧化铝或铝土矿的存在下煅烧天然碱时，碳酸钠溶液在可溶性硅酸盐以及碳质物质中都较低。

公开(公告)号：US3984527A

公开(公告)日：1976-10-05

申请号：US540614

申请日：1975-01-13

申请人： Alan B. Gancy ,  Rustom P. Poncha

发明人： Alan B. Gancy ,  Rustom P. Poncha

IPC分类号： C01D7/35 ,  C01D7/00 ,  C01D7/14

CPC分类号： C01D7/00

摘要： Low bulk density products containing at least 10% Wegscheider's Salt, by weight, in needlelike form are produced from sodium bicarbonate by heating in the presence of a slow inert gas stream an aqueous feed mixture comprising, by weight, at least about 50% sodium bicarbonate and about 15 to 30% Wegscheider's Salt.

摘要翻译： 含有至少10％重量的针刺状的Wegscheider's盐的低堆积密度产物由碳酸氢钠通过在缓慢惰性气流的存在下加热含水进料混合物而制备，所述含水进料混合物包含至少约50重量％的碳酸氢钠 和约15至30％的Wegscheider's Salt。