摘要:
There is disclosed a process for receiving, storing and handling aluminum hydroxide wet hydrate, wherein the aluminum hydroxide wet hydrate is unloaded, optionally in batches, by means of a dumping means, e.g., a dump truck into a hopper which is equipped with a conveying means, e.g., a plate conveyor, the aluminum hydroxide wet hydrate supplied by means of a transporting apparatus, e.g., a double belt vertical conveyor, to a weighing means, e.g., a conveyor-type weigher and weighed, subsequently supplied to an aluminum hydroxide wet hydrate suspension tank, mixing the aluminum hydroxide wet hydrate in the tank with the amount of aqueous sodium hydroxide needed to produce a suspension of the aluminum hydroxide wet hydrate and producing a pumpable and meterable suspension of the aluminum hydroxide wet hydrate by heating to a temperature between 20.degree. and 100.degree. C. with the aid of a heating element and a stirrer.
摘要:
There are provided alkali aluminum silicates having a hydrophilic surface. They are prepared by mixing a crystalline, ion-exchanging alkali aluminum silicate with a hydrophilic material, preferably ortho-phosphoric acid or an alkali ortho phosphate.
摘要:
There are produced crystalline zeolite powders of Type A with the composition1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2 .multidot.y H.sub.2 Owhere M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 4.9.mu. and with a particle spectrum______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要:
There are produced crystalline zeolite powders of Type A with the composition 1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2 .multidot.y H.sub.2 O where M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 4.0.mu. and with a particle spectrum______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要翻译:产生的A型结晶沸石粉末的组成为1.0 +/- 0.2M2 / nO:Al2O3:1.85 +/- 0.5SiOxyO2 H2O,其中M是金属阳离子,n是其价态,y的值高达6, 50重量%的颗粒不超过4.0微米,并具有颗粒光谱 - 分数(μ)部分(重量%) - <3 35至60 - <52 82至95 - <10 93至99 - <15 96至100 - 通过将SiO 2,Al 2 O 3,Na 2 O和含有碱金属铝的水,水,硅酸盐合成混合物水热结晶,任选地回火步骤,其中在结晶或回火步骤中的给定情况下,代替搅拌剪切力。 该方法包括提供碱性硅酸盐水溶液,将其加热至30℃至80℃的温度,加入碱金属硅酸盐溶液,搅拌下搅拌出含量为0.1至100克Al2O3 / l和1至200的铝酸钠水溶液 克Na2O / l,并将其预热至30℃至100℃,直到反应混合物的浊点在10至60分钟内,搅拌下加入到混合物中,混合物的组成为SiO 2 / Al 2 O 3 = 2至50:1,Na 2 O / SiO 2 = 0.2至20:1,H 2 O / Na 2 O = 4至300:1,含有10至200克/升Al 2 O 3和10至250克/升Na 2 O的铝酸钠水溶液, 温度为10℃至100℃,并使得到的合成混合物在20℃至175℃之间的温度下在至少15分钟内结晶。
摘要:
There are produced crystalline zeolite powders of Type A with the composition 1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2 .multidot.y H.sub.2 O where M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 5.9.mu. and with a particle spectrum______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要翻译:产生的A型结晶沸石粉末的组成为1.0 +/- 0.2M2 / nO:Al2O3:1.85 +/- 0.5SiOxyO2 H2O,其中M是金属阳离子,n是其价态,y的值高达6, 50重量%的颗粒不超过5.9微米,并具有颗粒光谱 - 分数(μ)部分(重量%) - <3 15至25 - <5 35至55 - <10 80至94 - <15 96至100 - 通过水热结晶SiO 2,Al 2 O 3,Na 2 O和含有碱金属铝酸盐的水,水,硅酸盐合成混合物,其具有可选的回火步骤,其中在结晶或回火步骤中的给定情况下,代替搅拌剪切力。 该方法包括在容器中提供水,同时在30℃至100℃的温度下加入水中,含有100-200克/升Na 2 O和50至150克/升Al 2 O 3和碱的铝酸钠水溶液 硅酸盐溶液,用水稀释,得到组合物SiO 2 / Al 2 O 3 = 2〜50:1,Na 2 O / SiO 2 = 0.2〜20:1,H 2 O / Na 2 O = 4〜300:1的合成预混合物,再加入铝酸钠液 的相同组成的水和10至100℃的温度的水进行搅拌,并使得到的合成混合物在20℃至175℃之间的温度下在至少15分钟内结晶。
摘要:
Alkali aluminum silicates, particularly a zeolitic molecular sieve powder with an average particle diameter of less than 10.mu. and having the portion of particles with a particle size above 45.mu. being less than 1 weight % are prepared by hydrothermal crystallization of an alkali aluminate-silicate mixture, separating the crystallization product from the mother liquor and drying with the proviso that the aqueous medium surrounding the crystallization product is adjusted to a pH value between 8.5 and 11 prior to the drying. The product is used as an ion exchanger, e.g., in dehardening water, particularly as a phosphate substitute in washing, rinsing and cleansing agents.
摘要:
There are produced crystalline zeolite powders of Type A with the composition1.0.+-.0.2M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5SiO.sub.2.yH.sub.2 Owhere M is a metal cation, n is it valence and y has a value up to 6 with 50 weight % of the particles not over 4.3.mu. and with a particle spectrum:______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要翻译:生产了具有组成为1.0 +/- 0.2M2 / nO:Al2O3:1.85 +/- 0.5SiO2.yH2O的A型结晶沸石粉末,其中M是金属阳离子,n是价数,y的值高达6 其中50重量%的颗粒不超过4.3μm,并具有颗粒光谱: - 分数(μ)部分(重量%) - <3 18至38 - <5 70至82 - <10 93至99 - <15 96至 100 - 通过水热结晶SiO 2,Al 2 O 3,Na 2 O和含有碱金属铝酸盐的水,水,硅酸盐合成混合物,其具有任选的回火步骤,其中在结晶或回火步骤中的给定情况下,代替搅拌剪切力。 该方法包括提供温度为30℃至100℃并含有0.1至100克Al 2 O 3 /升和1至200克Na 2 O / l的碱金属铝酸盐水溶液,在碱性硅酸盐溶液中进料10至200 分钟,得到组成为SiO 2 / Al 2 O 3 = 50〜1000:1,Na 2 O / SiO 2 = 0.2〜20:1,H 2 O / Na 2 O = 4〜300:1的透明反应溶液,搅拌加入到合成混合物中, 铝酸盐,其含有10至200克/升的Al 2 O 3和10至250克/升的温度为30至100℃的Na 2 O,并使得到的合成混合物在20℃至175℃之间的温度下结晶。 C.至少15分钟。
摘要:
There are produced crystalline zeolite powders of Type A with the composition1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2 .multidot.y H.sub.2 Owhere M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 6.2.mu. and with a particle spectrum:______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要:
There are provided alkali aluminum silicates having a hydrophilic surface. They are prepared by mixing a crystalline, ion-exchanging alkali aluminum silicate with a hydrophilic material, preferably ortho-phosphoric acid or an alkali ortho phosphate.
摘要:
There are produced crystalline zeolite powders of Type A with the composition1.0.+-.0.2 M.sub.2/n O:Al.sub.2 O.sub.3 :1.85.+-.0.5 SiO.sub.2.y H.sub.2 Owhere M is a metal cation, n is its valence and y has a value up to 6 with 50 weight % of the particles not over 4.9.mu. and with a particle spectrum______________________________________ Fraction (.mu.) Portion (weight %) ______________________________________
摘要翻译:产生的A型结晶沸石粉末的组成为1.0 +/- 0.2M 2 / nO:Al 2 O 3:1.85 +/- 0.5SiO 2·H 2 O,其中M是金属阳离子,n是其价态,y具有高达 6,其中50重量%的颗粒不超过4.9μm,并具有颗粒光谱 - 分数(μ)部分(重量%) - <3 10至60 - <5 55至95 - <10 93至99 - <15 96至 100 - 通过水热结晶SiO 2,Al 2 O 3,Na 2 O和含有碱金属铝酸盐的水,水,硅酸盐合成混合物,其具有任选的回火步骤,其中在结晶或回火步骤中的给定情况下,代替搅拌剪切力。 该方法包括混合搅拌(1)碱式硅酸钠水溶液和(2)NaOH含量为0.1至500克/升的氢氧化钠水溶液和/或(3)含0.1-100克/ l的Al 2 O 3和1至200克/升的Na 2 O,一种组分(1)和(2)或(3)存在于容器中,另一种加入其中,同时防止形成10至30分钟的时间 的SiO 2 / Al 2 O 3比例为2至50:1的不溶性凝胶,在搅拌下加入含有10-200克/升Al 2 O 3和10-250克/升Na 2 O并具有10℃温度的铝酸钠水溶液 DEG至100℃,并使由此获得的合成混合物在20℃至175℃之间的温度下在至少15分钟内结晶。