公开(公告)号：US3806451A

公开(公告)日：1974-04-23

申请号：US18288071

申请日：1971-09-22

申请人： TEXACO INC

发明人： TATE J

IPC分类号： C02F5/14 ,  C09K8/528 ,  C02B5/02 ,  C02B5/04 ,  C02B5/06

CPC分类号： C02F5/14 ,  C09K8/528 ,  Y10S507/927

摘要： METHOD FOR THE TREATMENT OF SCALE, PARTICULARLY CALCIUM SULFATE SCALE, USING A WATER SOLUBLE PARTIALLY ESTERIFIED POLYPHOSPHORIC ACID HAVING A PRESCRIBED FORMULA, THE CORRESPONDING WATER SOLUBLE SALTS AND MIXTURES.

公开(公告)号：US3721626A

公开(公告)日：1973-03-20

申请号：US3721626D

申请日：1969-02-03

申请人： VALCOVNY PLECHU N P

发明人： STANEK M ,  MOSTECKY J

IPC分类号： C23G1/28 ,  C02B5/02

CPC分类号： C23G1/28

摘要： A CONCENTRATE FOR USE IN ALKALINE DESCALING BATHS IS FORMED OF ALKALI METAL HYDRIDE AND ALKALI METAL OXIDE AS ACTIVE DESCALING CONSTITUENTS, DISPERSED OR DISSOVLED IN ALKALI METAL HYDROXIDE, THE LATTER BEING PRESENT IN A SUFFICIENT AMOUNT TO PASSIVATE THE ACTIVE DESCALING CONSTITUENTS PRIOR TO INTRODUCTION OF THE CONCENTRATE INTO THE DESCALING BATH. GENERALLY ALKALI WILL BE SOIDUM.

公开(公告)号：US3623991A

公开(公告)日：1971-11-30

申请号：US3623991D

申请日：1969-06-10

申请人： CHEMED CORP

发明人： SABATELLI PHILIP M ,  LODER EDWIN R ,  BRUNGS CHARLES A ,  SARGE CARMEN R

IPC分类号： C02F5/08 ,  C02B5/02 ,  C11D7/34

CPC分类号： C02F5/08

摘要： A descaling detergent composition is disclosed which includes in combination, a tetra-alkali metal pyrophosphate, an alkali metal tripolyphosphate, and a water-soluble alkali metal polyelectrolyte polymer. Articles may be effectively descaled by an aqueous solution of the present descaling detergent with greater scale removal and better hard water control than related compositions known to the art.

公开(公告)号：US3539464A

公开(公告)日：1970-11-10

申请号：US3539464D

申请日：1967-09-07

申请人： GRACE W R & CO

发明人： HARPER JAMES L ,  NAJJAR EDWARD G

IPC分类号： C07C59/105 ,  C07F5/04 ,  C02B5/02 ,  C07C69/34 ,  C11D7/02

CPC分类号： C07C59/105 ,  C07F5/04

公开(公告)号：US3446733A

公开(公告)日：1969-05-27

申请号：US3446733D

申请日：1966-11-21

申请人： PHILLIPS PETROLEUM CO

发明人： SHELL FRANCIS J

IPC分类号： C02F1/00 ,  C02B1/18 ,  C02B5/02

CPC分类号： C02F1/00

公开(公告)号：US4209398A

公开(公告)日：1980-06-24

申请号：US921752

申请日：1978-07-03

申请人： Motohiko Ii ,  Yoshio Goto ,  Takashi Suzuki ,  Sotoo Kubo

发明人： Motohiko Ii ,  Yoshio Goto ,  Takashi Suzuki ,  Sotoo Kubo

IPC分类号： C02F5/10 ,  C02F5/14 ,  C23F11/08 ,  C23F11/173 ,  C02B5/02 ,  C02B5/06

CPC分类号： C02F5/105 ,  C02F5/10 ,  C02F5/14 ,  C02F5/145 ,  C23F11/08 ,  C23F11/173

摘要： A water treating agent which comprises a specific polymer containing a structural unit that is derived from a monomer having an ethylenically unsaturated bond and has one or more carboxyl radicals, at least a part of said carboxyl radicals being modified, or another water treating agent which comprises, in addition to said specific polymer, one or more compounds selected from the group consisting of inorganic phosphates, phosphonic acids, organic phosphoric acid esters and polyvalent metal salts, is capable of preventing the formation of corrosion, scale and contamination on the surface of a metal that is in contact with water.

摘要翻译： 一种水处理剂，其包含含有结构单元的特定聚合物，该结构单元衍生自具有烯属不饱和键的单体并具有一个或多个羧基，所述羧基的至少一部分被改性，或另一水处理剂， 除了所述特定聚合物之外，一种或多种选自无机磷酸盐，膦酸，有机磷酸酯和多价金属盐的化合物能够防止在表面上形成腐蚀，氧化皮和污染物 与水接触的金属。

公开(公告)号：US4172786A

公开(公告)日：1979-10-30

申请号：US946992

申请日：1978-09-29

申请人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Marshall F. Humphrey ,  Kenneth R. French ,  Ronald D. Howe

发明人： Robert A. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Frosch ,  Marshall F. Humphrey ,  Kenneth R. French ,  Ronald D. Howe

IPC分类号： C02F1/78 ,  C02F5/08 ,  C23F11/18 ,  C02B5/02

CPC分类号： C23F11/18 ,  C02F1/78 ,  C02F5/083 ,  C02F2103/023

摘要： Continuous ozone injection into water circulating between a cooling tower and heat exchanger with heavy scale deposits inhibits formation of further deposits, promotes flaking of existing deposits, inhibits chemical corrosion and controls algae and bacteria.

摘要翻译： 连续臭氧注入到冷却塔和具有沉积沉积物的热交换器之间循环的水中，从而抑制沉积物的形成，促进现有沉积物的剥落，抑制化学腐蚀并控制藻类和细菌。

公开(公告)号：US4144185A

公开(公告)日：1979-03-13

申请号：US880831

申请日：1978-02-24

申请人： Jacob Block

发明人： Jacob Block

IPC分类号： C02F5/08 ,  C02F5/14 ,  C11D1/00 ,  C11D3/10 ,  C02B5/06 ,  C02B5/02

CPC分类号： C11D3/10 ,  B01D65/02 ,  C02F5/08 ,  C11D1/004 ,  B01D2321/162

摘要： A method and composition for removing calcium sulfate scale deposits from surfaces, such as reverse osmosis membranes and electrodialysis stacks, wherein the surface to be cleaned is contacted by an aqueous solution comprising a chelating agent, a soluble carbonate and a fluorocarbon surfactant.

摘要翻译： 一种用于从诸如反渗透膜和电渗析层的表面去除硫酸钙垢沉积物的方法和组合物，其中待清洁的表面与包含螯合剂，可溶性碳酸盐和氟碳表面活性剂的水溶液接触。

公开(公告)号：US4098714A

公开(公告)日：1978-07-04

申请号：US697616

申请日：1976-06-18

申请人： Helmut Derleth ,  Maria Hansen ,  Ingeborg Lange ,  Artur Kurs

发明人： Helmut Derleth ,  Maria Hansen ,  Ingeborg Lange ,  Artur Kurs

IPC分类号： B01J20/32 ,  C01B33/46 ,  C02F5/08 ,  C11D3/00 ,  C11D3/02 ,  C02B5/02 ,  C02B1/22

CPC分类号： C11D3/046 ,  B01J20/041 ,  B01J20/08 ,  B01J20/16 ,  B01J20/28004 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3212 ,  B01J20/3236 ,  C01B33/46 ,  C02F5/083 ,  C11D3/1213 ,  C11D3/124 ,  C11D3/126 ,  C11D3/128 ,  B01J2220/4825

摘要： Disclosed is a process for preparing a water softening composition which comprises the steps of:(a) applying to finely divided solid carrier particles of an inorganic material selected, e.g., from the group consisting of aluminosilicates having an Al.sub.2 O.sub.3 content of from 1 to 75% by mole, kieselguhr, a silicic acid composition containing 67 mole % of SiO.sub.2, 1 mole % of Al.sub.2 O.sub.3 and 278 mole % of H.sub.2 O, a silica gel containing 12.24% of SiO.sub.2, 7.35% of N.sub.2 SO.sub.4, 0.41% of Na.sub.2 O and 80% of H.sub.2 O, aluminum oxide, alumina hydrate, bentonite and sodium sulfate, a solution of sodium aluminate having a concentration of from about 0.2% to 25% by weight and a molar ratio Na.sub.2 O/Al.sub.2 O.sub.3 of from about 0.3 to 47, in an amount which is sufficient to coat the particles with an outside layer of sodium aluminate amounting from about 0.5 to about 50% by weight of the particles; and, (b) drying the coated particles at a temperature of from about 20.degree. to 120.degree. C. to a residual moisture content of from about 5% to 30% by weight. Also disclosed are the resulting water softening compositions and method of using same.

摘要翻译： 公开了一种制备水软化组合物的方法，其包括以下步骤：

公开(公告)号：US4024087A

公开(公告)日：1977-05-17

申请号：US629703

申请日：1975-11-06

申请人： Jury Abramovich Lainer ,  Eldar Ismail Ogly Tagiev ,  Gakif Zakirovich Nasyrov ,  Valentina Ivanovna Zakharova ,  Abram Ilich Lainer, deceased ,  Vera Nikolaevna Lainer, administrator ,  Jury Abramovich Lainer, administrator ,  Nina Abramovna Gelfand, administrator

发明人： Jury Abramovich Lainer ,  Eldar Ismail Ogly Tagiev ,  Gakif Zakirovich Nasyrov ,  Valentina Ivanovna Zakharova ,  Abram Ilich Lainer, deceased ,  Vera Nikolaevna Lainer, administrator ,  Jury Abramovich Lainer, administrator ,  Nina Abramovna Gelfand, administrator

IPC分类号： C01F7/74 ,  C02F1/52 ,  C02B5/02

CPC分类号： C01F7/74 ,  C02F1/5236

摘要： The method of preparing a coagulant for purification of water from mechanical admixtures consists in that alunite is roasted at a temperature of 520.degree.-620.degree. C. The roasted alunite is leached with a 20-35 per cent aqueous solution of sulphuric acid taken in the quantity of 70-90 per cent of the stoichiometrically required quantity, at a temperature of 80.degree.-100.degree. C. After leaching, roasted alunite is added in the quantity of 10-15 per cent of the weight of the starting alunite. The resultant pulp consists of solid and liquid phases, the liquid phase being an aqueous solution of the end product, while the solid phase is an insoluble residue. The solution is separated from the insoluble residue and the end product is finally isolated from the solution.

摘要翻译： 制备用于从机械混合物中净化水的凝结剂的方法在于，在520℃-620℃的温度下焙烧铝酸钠。将焙烧的铝酸钠浸入20-35％的硫酸水溶液中 数量为化学计量要求量的70-90％，温度为80°-100℃。浸出后，以起始铝酸盐重量的10-15％的量加入焙烧的铝橄榄石。 所得纸浆由固相和液相组成，液相为最终产物的水溶液，而固相为不溶性残渣。 将溶液与不溶性残留物分离，最终从溶液中分离终产物。